The invention is directed at a method of processing a colored thermoplastic polymer composition, which allows separation of individual polymer components and colorant components, a thermoplastic polymer composition obtained by said method, and a molded article comprising the thermoplastic polymer composition.
The invention relates to a method for preparation of a polymer product comprising a polymer obtained by anionic polymerization, wherein the metal salts derived from the anionic polymerization initiator are recovered from the product. The invention also relates to a polymer product obtained by the method.
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
3.
IMPACT-MODIFIED BLENDS OF STYRENE-METHYL METHACRYLATE COPOLYMERS AND VINYLAROMATIC-OLEFINIC BLOCK COPOLYMERS
The invention relates to a molding composition (P) comprising components (a). (b), and (c): (a) 30 to 95 wt.-% of at least one random copolymer (a) made from 30 to 70 wt.-% of at least one vinylaromatic monomer (a11), and 30 to 70 wt.-%, methyl methacrylate (a12): (b) 5 to 70 wt.-% of at least one block copolymer (b) which comprises: at least one hard block H, comprising repeating units of vinyl aromatic monomers, and at least one elastomeric soft block S1, comprising repeating units of olefinic monomers, preferably ethylene and at least one olefinic monomer having 3 to 10 carbon atoms, and/or at least one soft block S2 comprising repeating units of olefinic monomers and vinylaromatic monomers, in particular ethylene, at least one olefinic monomer having 3 to 10 carbon atoms and styrene, wherein the proportion of the repeating units of vinyl aromatic monomers-based on the entire block copolymer (b)—is from 25 to 85 wt.-%; and (c) ( ) to 2 wt.-% of additive(s) and/or processing aid(s) (c); wherein the total amount of components (a). (b), and (c) is 100 wt.-%.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
4.
HIGH CLARITY AND DUCTILE MOLDING COMPOSITION COMPRISING A SMMA COPOLYMER, A SBC-BLOCK COPOLYMER AND AT LEAST ONE LIGHT STABILIZER
High clarity and ductile molding composition comprising: (a) 71 to 98.99 wt.-% of at least one random copolymer (a) made from 44 to 64 wt.-% of at least one vinylaromatic monomer (a11), and 36 to 56 wt.-%, methyl methacrylate (a12); (b) 1 to 28.99 wt.-% of at least one vinylaromatic-diene block copolymer (b) which comprises at least one hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes, and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of diene-based on entire block copolymer (b) is 47 to 67 wt.-%; (c) 0.01 to 1.0 wt.-% of at least one light stabilizer (c); (d) 0 to 1.0 wt.-% of at least one antioxidant (d); and (e) 0 to 5 wt.-% of one or more additive(s) and/or processing aid(s) (e), different from the light stabilizer(s) (c) and antioxidant(s) (d); have good light stability and processability.
The present invention relates to a vinylaromatic polymer composite article comprising at least two segments comprising vinylaromatic polymer compositions, each of which com- prises at least one vinylaromatic (co)polymer, wherein the percentages of repeating units derived from vinylaromatic monomers in each vinylaromatic (co)polymer differ from each other by less than 25 wt.-%. The vinylaromatic polymer composite article is character- ized by reduced delamination tendency and improved recyclability. The invention further relates to a process for producing the vinylaromatic polymer composite article and to the use of the obtained vinylaromatic polymer composite article as component of refrigerat- ing devices or freezing devices.
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 27/30 - Produits stratifiés composés essentiellement de résine synthétique comprenant une résine vinyliqueProduits stratifiés composés essentiellement de résine synthétique comprenant une résine acrylique
C08J 11/04 - Récupération ou traitement des résidus des polymères
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
F25D 23/00 - Caractéristiques générales de structure
The invention proposes a linear vinylaromatic diene block copolymer (A) and polymer compositions comprising such SBC for the production of films having organoleptically improved, low film-blocking properties. Block copolymer (A) has sharp block transitions and a molecular weight Mn of at least 140,000 g/mol, wherein the proportion of a soft phase built from diene is from 15 to 35 vol.-%, and which soft phase-embedded in a vinylaromatic hard phase—has a cylindrical morphology.
C08F 293/00 - Composés macromoléculaires obtenus par polymérisation sur une macromolécule contenant des groupes capables d'amorcer la formation de nouvelles chaînes polymères rattachées exclusivement à une ou aux deux extrémités de la macromolécule de départ
The present invention relates to a thermoplastic impact resistant copolymer composition having an increased luminous transmittance in relation to conventional impact resistant compositions, a process for its preparation and shaped articles made therefrom. The composition comprises 25 to 45% by weight of at least one acrylate-based graft copolymer and 25 to 75% by weight of at least one random copolymer of alkyl (meth) acrylate and vinylaromatic monomers.
The invention is directed to a process for producing a ABS composition comprising 30-80 wt.-% of copolymer A, 19.99-60 wt.-% of ABS-copolymer B, 0-40 wt.-% of polymer C and 0.01-20 wt.-% of additives D, having the steps: a) mixing the components A, B and D and optionally C, by using an extruder comprising: a first feeding zone FZ1, a preheating zone PZ, a mechanical dewatering zone DZ, in which component B is mechanically dewatered, and wherein: the mechanical dewatering zone DZ comprises at least one dewatering aperture, in particular for liquid water; in a second feeding zone FZ2, at least part of component A and optionally part of component D are fed, preferably in melt and/or solid form, to the ex-truder, in a degassing zone DG component A and/or component B are degassed, and b) removing the ABS molding composition from a discharge zone CZ of the extruder.
B29B 7/48 - MélangeMalaxage continu, avec dispositifs mécaniques de mélange ou de malaxage avec dispositifs de mélange ou de malaxage mobiles rotatifs avec plus d'un arbre à dispositifs à engrènement, p. ex. à vis qui s'engrènent
B29B 7/86 - Éléments constitutifs, détails ou accessoiresOpérations auxiliaires pour travailler à une pression supérieure ou inférieure à la pression atmosphérique
B29K 409/00 - Utilisation de caoutchouc dérivé de diènes conjugués comme matière de remplissage
C08J 3/21 - Formation de mélanges de polymères avec des additifs, p. ex. coloration en présence d'une phase liquide le polymère étant prémélangé avec une phase liquide
9.
PROCESS FOR THE PREPARATION OF A THERMOPLASTIC MOLDING COMPOSITION WITH GOOD COLOR STABILITY
A process for the preparation of a thermoplastic molding composition based on ABS copolymers is described in which two or more phenolic stabilizers A selected from A2: octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate); A3: benzenepropanoic acid, 3,5-bis(1,1-dimethylethyl)-4-hydroxy-,1,1'-(thiodi-2,1-ethanediyl) ester; and A4: 2,4,6-tris(3',5'-di-tert-butyl-4'-hydroxybenzyl)mesitylene, and thio-co-stabilizers B are used. ABS molding compositions obtained by said process have a good color stability.
C08J 3/03 - Production de solutions, dispersions, latex ou gel par d'autres procédés que ceux utilisant les techniques de polymérisation en solution, en émulsion ou en suspension dans un milieux aqueux
10.
HIGH CLARITY AND LOW HAZE UV STABILIZED STYRENE AND METHYL METHACRYLATE COPOLYMERS
The invention relates to a thermoplastic composition (P) comprising a copolymer (a) of vinylaromatic monomer and methyl methacrylate monomer, at least two hindered amine light stabilizers, at least two UV absorbers, and optionally further additives. It further relates to a process for the preparation of the thermoplastic composition (P), a process for the preparation of a shaped article, the shaped article, and the use of the components for the preparation of a thermoplastic composition (P). The thermoplastic composition (P) has high clarity, low haze, and advantageous high UV stability.
The invention relates to a thermoplastic molding composition comprising at least one vinylaromatic (co)polymer and at least one filler comprising spent coffee grounds. The molding composition according to the invention is characterized by having a reduced coefficient of friction while its surface energy is only moderately changed. The invention also relates to a process for reducing the coefficient of friction of a thermoplastic molding composition by adding spent coffee grounds. Moreover, the invention relates to the use of spent coffee grounds as friction modifier for thermoplastic polymer compositions.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 99/00 - Compositions contenant des composés macromoléculaires naturels ou leurs dérivés, non prévus dans les groupes ou
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08K 11/00 - Emploi d'ingrédients de constitution inconnue, p. ex. produits de réaction non définis
A23F 5/36 - Traitements complémentaires de l'extrait de café séchéProduits ainsi obtenus, p. ex. café instantané
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
The invention relates to a thermoplastic molding composition (P) comprising: (A) thermoplastic polymer composition (A) comprising: (A-1) 10 to 50 wt.-% of graft copolymer (A-1), (A-2) 1 to 50 wt.-%, of thermoplastic polymer matrix (A-2) based on one or more vinylaromatic copolymers, (A-3) 20 to 50 wt.-%, of polymerized alkyl methacrylate component (A-3), and (A-4) 0 to 45 wt.-% of comonomer which is copolymerized with the at least one polymerized alkyl methacrylate component (A-3), where the sum of (A-1), (A-2), (A-3) and optional comonomers (A-4) is 83.2 to 99.8 wt.-%; (B) a hindered amine light stabilizer composition (B), comprising at least two of substances (B-1) to (B-3): (B-1) 0 to 0.9 wt.-%, of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure (B-2) 0 to 0.9 wt.-%, of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure, and (B-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups (C) 0 to 5 wt.-%, of one or more further additives (C), different from (B); and (D) 0 to 10 wt.-%, of colorants, dyes and/or pigments (D), different from (C); wherein the constituents (A) to (D) sum up to 100 wt.-% of the molding composition (P).
C08L 25/16 - Homopolymères ou copolymères de styrènes substitués par un radical alkyle
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
13.
TERPOLYMER OF METHYL METHACRYLATE, STYRENE AND ALPHA-METHYL STYRENE
The invention relates to a terpolymer comprising repeating units of the monomers methyl methacrylate, styrene, and alpha-methyl styrene, as well as a process for producing the terpolymer. The invention further relates to a thermoplastic terpolymer composition comprising the terpolymer and a thermoplastic molding composition comprising the terpolymer, as well as to the use of these compositions, e.g. for producing shaped bodies.
Weather resistant thermoplastic ASA compositions comprising (A): 20 to 80 wt.-% of a polymer mixture (A) consisting of: 35 to 65 wt.-% graft copolymer GR1 (D50 of 55 to 170 nm), composed of: 40 to 80 wt.-% cross-linked C1 to C8 alkyl acrylate graft base G11 and 20 to 60 wt.-% SAN-copolymer graft shell G12; and 65 to 35 wt.-% SAN copolymer S1 (MVR 50 to 70 ml/10 min); (B): 5 to 35 wt.-% polymer mixture (B) consisting of: 35 to 65 wt.-% graft copolymer GR2 (D50 of 410 to 1000 nm), composed of: 40 to 80 wt.-% cross-linked C1 to C8 alkyl acrylate graft base G21 and 20 to 60 wt.-% SAN-copolymer graft shell G22; and 65 to 35 wt.-% SAN copolymer S2 (MVR 11 to 25 ml/10 min); (C): 10 to 40 wt.-% of at least one SAN copolymer (C) (MVR 11 to 70 ml/10 min); (D): 1 to 15 wt.-% EVA copolymer (D) (VA>25 wt.-%); are particularly useful e.g. in the automotive industry.
C08L 51/00 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères
High clarity and ductile molding composition comprising: (a) 71 to 90 wt.-% random copolymer made from 44 to 64 wt.-% vinylaromatic monomer and 36 to 56 wt.-%, methyl methacrylate; (b) 10 to 29 wt vinylaromatic-diene block copolymer comprising at least two hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of the diene is from 47 to 67 wt.-%; and (c) 0 to 5 wt.-% additives and/or processing aids (c), have high hardness, heat resistance, and stiffness and can be used for home appliances.
A graft copolymer B composed of:5 B1: 45 to 70 wt.-% graftbase B1, obtainedby emulsion polymerization of: b11: 80 to 98.9 wt.-% Cl to C4-alkyl acrylate; b12: 1 to 19.9 wt.-% C9 to C22-alkyl(meth)acrylate; and b13: 0.1 to 10 wt.-% bi- or polyfunctional crosslinking monomer b13; B2: 30 to 55 wt.-% graft shell B2 obtained in presence of graft base B1 via emulsion 10 polymerization of: b21: 50 to 95 wt.-% vinylaromatic monomer b21, and b22: 5 to 50 wt.-% vinylcyan monomer b22; and thermoplastic molding compositions thereof can be used for applications in the automotive and construction industry.
C08F 257/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères de monomères aromatiques tels que définis dans le groupe sur des polymères de styrène ou de styrène substitué par des groupes alkyle
C08L 33/20 - Homopolymères ou copolymères de l'acrylonitrile
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
17.
IMPACT-MODIFIED BLENDS OF STYRENE-METHYL METHACRYLATE COPOLYMERS AND VINYLAROMATIC-OLEFINIC BLOCK COPOLYMERS
S1S111S1S1) - is from 25 to 85 wt.-%; (c) 0 to 2 wt.-% of at least one UV stabilizer component (c); and (d) 0 to 2 wt.-% of one or more additive(s) and/or processing aid(s) as component (d), which are different from the components (a), (b) and (c); wherein the total amount of components (a), (b), (c) and (d) is 100 wt.-%, and wherein the molding composition (P) has an un-notched Izod impact strength determined according to ASTM D4812 of greater than 250 J/m.
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
18.
PROCESS FOR PRODUCING A THERMOPLASTIC MOULDING COMPOUND COMPRISING A THERMOPLASTIC COPOLYMER A AND A GRAFT COPOLYMER B
The invention relates to a process for producing a thermoplastic moulding compound comprising a thermoplastic copolymer A and a graft copolymer B (4), comprising: continuously drying the dewatered graft copolymer B (4) by supplying a drying gas (3) and the dewatered graft copolymer B (4), by moving the dewatered graft copolymer B (4) through the drying gas (3) and forming a fluidized bed (5), the drying gas (3) having a feed temperature TG,feed in the range from 50° C. to 160° C., and by removing dried graft copolymer B (4) and an offgas (7), wherein i. a starting temperature Tin of the fluidized bed (5) on feeding (9) of the dewatered graft copolymer B (4) is measured, ii. a finish temperature Tout of the fluidized bed (5) on removal (11) of the dried graft copolymer B (4) and/or of the offgas (7) is measured, iii. a difference ΔTact between the finish temperature Tout and the starting temperature Tin is formed and the difference ΔTact is compared with a target value ΔTtarget, and iv. the finish temperature Tout is adjusted by—increasing a mass flow rate of drying gas (3) supplied and/or the feed temperature TG,feed of the drying gas (3) when the difference ΔTact is smaller than the target value ΔTtarget or—reducing a mass flow rate of drying gas (3) supplied and/or the feed temperature TG,feed of the drying gas (3) when the difference ΔTact is greater than the target value ΔTtarget.
C08F 257/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères de monomères aromatiques tels que définis dans le groupe sur des polymères de styrène ou de styrène substitué par des groupes alkyle
F26B 3/084 - Procédés de séchage d'un matériau solide ou d'objets impliquant l'utilisation de chaleur par convection, c.-à-d. la chaleur étant transférée d'une source de chaleur au matériau ou aux objets à sécher par un gaz ou par une vapeur, p. ex. l'air le gaz ou la vapeur s'écoulant à travers le matériau ou les objets à sécher de façon à les rendre lâches, p. ex. pour former un lit fluidisé un échange de chaleur intervenant dans le lit fluidisé
F26B 21/10 - Commande, p. ex. régulation des paramètres de l'alimentation en gaz de la températureCommande, p. ex. régulation des paramètres de l'alimentation en gaz de la pression
F26B 21/14 - Utilisation de gaz ou de vapeurs autres que l'air ou la vapeur d'eau
19.
ASA POLYMER COMPOSITION WITH OPTIMISED UV STABILITY AND GOOD TOUGHNESS-STIFFNESS BALANCE
A thermoplastic acrylate-styrene-acrylonitrile (ASA) copolymer composition for the production of moldings. The composition comprises:
10-89.7% by weight of a copolymer A1 consisting of styrene and acrylonitrile,
10-89.7% by weight of at least one graft copolymer A2 having an average particle size of 80-800 nm, consisting of a rubber-like base substance having Tg<0° C. and at least one graft shell,
0.1-2% by weight of at least one sterically hindered amine B1,
0-2% by weight of at least one sterically hindered amine B2,
0-2% by weight of at least one UV-A absorber B3,
0.1-3% by weight of at least one carbon black component CB, and
0-5% by weight of one or more further additives C.
A thermoplastic acrylate-styrene-acrylonitrile (ASA) copolymer composition for the production of moldings. The composition comprises:
10-89.7% by weight of a copolymer A1 consisting of styrene and acrylonitrile,
10-89.7% by weight of at least one graft copolymer A2 having an average particle size of 80-800 nm, consisting of a rubber-like base substance having Tg<0° C. and at least one graft shell,
0.1-2% by weight of at least one sterically hindered amine B1,
0-2% by weight of at least one sterically hindered amine B2,
0-2% by weight of at least one UV-A absorber B3,
0.1-3% by weight of at least one carbon black component CB, and
0-5% by weight of one or more further additives C.
The thermoplastic acrylate-styrene-acrylonitrile copolymer composition after the production of moldings results in at least one sterically hindered amine (B1, B2) being present on the surface of a molding after 500 h of artificial weathering in accordance with standard EN ISO 4892 in a higher amount than in a molding before the artificial weathering.
C08K 5/3475 - Cycles à cinq chaînons condensés avec des carbocycles
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
20.
IMPROVED PROCESSES FOR PRODUCING THERMOPLASTIC ABS MOLDING COMPOSITIONS
The invention is directed to a process for producing a ABS composition comprising 30-80 wt.-% of copolymer matrix A, 19.99-60 wt.-% of ABS-copolymer B, 0-40 wt.-% of polymer C and 0.01-20 wt.-% of additives D, having the steps: a) mixing the components A, B and D and optionally C, by using an extruder comprising: a first feeding zone FZ1, a mechanical dewatering zone DZ, in which component B is mechanically dewatered, and wherein: the mechanical dewatering zone DZ comprises at least one dewatering aperture, in particular for liquid water, wherein the mechanical dewatering DZ zone comprises one or more elements made of a stainless steel material; in a second feeding zone FZ2, at least part of component A and optionally part of component D are fed, preferably in melt and/or solid form, to the extruder, in a degassing zone DG component A and/or component B are degassed, and b) removing the ABS molding composition from a discharge zone CZ of the extruder.
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
B29C 48/285 - Alimentation de l’extrudeuse en matière d’extrusion
ABS molding composition with an improved surface quality comprising (A) 15 to 44.975 wt.-% graft copolymer (A)-consisting of 15 to 60 wt.-% graft sheath (A2) and 40 to 85 wt.-% agglomerated butadiene rubber latex (A1)-obtained by emulsion polymerization of styrene and acrylonitrile in the presence of rubber latex (A1) (D50 of 150 to 800 nm). (B) 55 to 84.975 wt.-% copolymer (B) of styrene and acrylonitrile having a molar mass Mw of 85.000 to 190,000 g/mol: (C) 0.015 to 0.40 wt.-% vinylidene fluoride copolymer (C): and (D) 0.01 to 5 wt.-% further additive/processing aid (D) different from (C): can be used in painting or (electro)plating applications of thermoplastics.
The invention relates to a process for producing a fiber-reinforced composite material (organosheet) containing at least one thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, at least one sheet material consisting of continuous reinforcing fibers is embedded in a matrix composition comprising at least one thermoplastic molding compound, the thermoplastic molding compound including at least one thermoplastic polymer and optionally at least one polarity-functionalized polymer that contains repeat units of at least one functional monomer. The invention also relates to the composite materials produced according to the claimed method.
C08L 23/16 - Copolymères de l’éthylène et du propylène ou de l’éthylène, du propylène et de diène
C08L 51/06 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des homopolymères ou des copolymères d'hydrocarbures aliphatiques ne contenant qu'une seule liaison double carbone-carbone
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics (in
the form of beads); unprocessed artificial resins and
unprocessed plastics made from recycled plastics;
unprocessed artificial resins and unprocessed plastics based
on renewable resources; each of the above being styrene
polymers or styrene copolymers including
acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-,
alpha-methylstyrene-acrylonitrile-, styrene-methyl
methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate-butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers and blends of styrene polymers or
copolymers with other thermoplastic resins. Semi-finished products of plastic (in the form of profiles,
foils, sheets, rods, pipes, blocks); recycled compound
plastics; recycled compound plastics for use in manufacture;
recycled plastic for use in manufacture; recycled plastics;
compound plastics based on renewable resources; compound
plastics for use in manufacture based on renewable
resources; plastics based on renewable resources; plastics
for manufacture based on renewable resources; packing,
stopping and insulating materials formed from plastics
including recycled plastics and plastics based on renewable
resources; each of the above being plastics made of styrene
polymers or styrene copolymers including
acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-,
alpha-methyl styrene-acrylonitrile-, styrene-methyl
methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers, and plastics made of blends of styrene
polymers or copolymers with other thermoplastic resins. Building materials formed from plastics including recycled
plastics and plastics based on renewable resources; each of
the above being plastics made of styrene polymers or styrene
copolymers including acrylonitrile-butadiene-styrene-,
styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-,
styrene-methyl methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers, and plastics made of blends of styrene
polymers or copolymers with other thermoplastic resins.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics (in
the form of beads); unprocessed artificial resins and
unprocessed plastics being styrene polymers or styrene
copolymers including acrylonitrile-butadiene-styrene-,
styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-,
styrene-methyl methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate-butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers and blends of styrene polymers or
copolymers with other thermoplastic resins. Semi-finished products of plastic (in the form of profiles,
foils, sheets, rods, pipes, blocks); plastics for use in
manufacture; compound plastics; compound plastics for use in
manufacture; packing, stopping and insulating materials
formed from plastics; each of the above being plastics made
of styrene polymers or styrene copolymers including
acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-,
alpha-methyl styrene-acrylonitrile-, styrene-methyl
methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers, and plastics made of blends of styrene
polymers or copolymers with other thermoplastic resins. Building materials formed from plastics; building materials
formed from plastics made of styrene polymers or styrene
copolymers including acrylonitrile-butadiene-styrene-,
styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-,
styrene-methyl methacrylate-, methyl
methacrylate-acrylonitrile-butadiene-styrene-, methyl
methacrylate butadiene-styrene-, styrene-butadiene-,
acrylonitrile-styrene-acrylate-, styrene-maleic
anhydride-copolymers and plastics made of blends of styrene
polymers or copolymers with other thermoplastic resins.
25.
RECYCLING OF STYRENE OLIGOMERS BY DE-POLYMERIZATION PROCESS
A process for producing styrene monomers from styrene oligomers comprises the following steps: a) providing a composition (A) comprising at least one type of styrene oligomer, wherein the composition (A) comprises at least 15 wt.-% of styrene dimers and/or styrene trimers; b) providing a depolymerization reactor (R) with a reaction zone (Z); c) feeding the composition (A) into the reaction zone (Z) of the reactor (R); d) depolymerizing the at least one type of styrene oligomer in the reaction zone (Z) to obtain a composition (B), comprising styrene monomers; e) removing the composition (B) from the reaction zone (Z); and f) isolating the styrene monomers from the composition (B); wherein the temperature (T) inside the reaction zone (Z) is above 500° C. to below 800° C. and the average residence time (tA) of the composition (A) in the reaction zone (Z) is greater than 0.01 s and less than 60 s.
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
26.
FILLER-CONTAINING THERMOPLASTIC POLYMER COMPOSITE MATERIAL REINFORCED WITH CONTINUOUS FIBERS AND HAVING GOOD SURFACE SMOOTHNESS
The invention relates to composite materials (organosheets) containing a thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, a sheet material consisting of continuous reinforcing fibers in a matrix composition comprising the molding compound is used, the thermoplastic molding compound containing at least one polyolefin, and optionally at least one further, polarity-functionalized polymer. The invention also relates to a process for produci2023ng the claimed composite material and to uses thereof.
The invention relates to a molding composition (P) comprising: (A) 83.2 to 98.5 wt.-% of a thermoplastic polymer composition (A) comprising: (A-1) at least one graft copolymer (A-1), and (A-2) at least one thermoplastic matrix polymer (A-2) based on one or more vinylaromatic copolymers; (B) 1.5 to 3 wt.-% of carbon black (B) or a mixture of carbon blacks (B); (C) a hindered amine light stabilizer composition (C), comprising at least two of substances (C-1) to (C-3): (C-1) 0 to 0.9 wt.-%, based on the total weight of the molding composition (P), of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure, (C-2) 0 to 0.9 wt.-% of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure and (C-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups provided that the at least one hindered amine light stabilizer composition (C) is present in the molding composition (P) in an amount of at least 0.2 wt.-%; (D) 0 to 5 wt.-%, of one or more further additives (D), different from (B) and (C); and (E) 0 to 5 wt.-%, of one or more further colorants, dyes or pigments (E), different from (B) and (D); wherein the constituents (A) to (E) sum up to 100 wt.-% of the molding composition (P).
C08L 51/06 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des homopolymères ou des copolymères d'hydrocarbures aliphatiques ne contenant qu'une seule liaison double carbone-carbone
28.
METHOD FOR PRODUCING A CRUDE STYRENE OIL MIXTURE RICH IN STYRENE AND STYRENE DERIVATIVES
The present invention provides a method for producing a pyrolysis oil from a polymer comprising repeating units of vinylaromatic monomers, such as polystyrene, comprising steps of pyrolysis of the polymer, quenching and condensing of the pyrolysis reaction products with an aqueous solution, phase separation and collecting of the separated pyrolysis oil, wherein the step of quenching and/or the phase separation involves an aqueous solution of phosphate salt. The invention also pertains to a system configured for performing the above method, which comprises a means for carrying out a pyrolysis of a polymer (P) comprising repeating units of vinylaromatic monomers (M), a means for quenching the pyrolysis reaction with an aqueous solution (A), a means for performing phase separation, a means for collecting the organic phase from the means for performing phase separation, and a means for dosing salt, configured to dose at least one phosphate salt into the aqueous solution (A) used for quenching the pyrolysis reaction or into the means for performing phase separation, and optionally a distillation means. A phosphate concentration of at least 0.01 mol/L, preferably of at least 0.1 mol/L, more preferably of 0.2 to 2 mol/L, more preferably of 0.4 mol/L to 1 mol/L, leads to an increased speed of phase separation of a heterogeneous liquid mixture comprising vinylaromatic monomers, such as styrene, obtained from the above-mentioned pyrolysis, and an aqueous solution (A).
C10B 53/07 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières polymères synthétiques, p. ex. pneumatiques
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
C10G 1/00 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon
C10G 1/10 - Production de mélanges liquides d'hydrocarbures à partir de schiste bitumineux, de sable pétrolifère ou de matières carbonées solides non fusibles ou similaires, p. ex. bois, charbon à partir de caoutchouc ou de déchets de caoutchouc
C10K 1/04 - Purification des gaz combustibles contenant de l'oxyde de carbone par refroidissement en vue de condenser les matières non gazeuses
C10K 1/06 - Purification des gaz combustibles contenant de l'oxyde de carbone par refroidissement en vue de condenser les matières non gazeuses combiné avec une pulvérisation d'eau
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
29.
METHOD FOR PRODUCING A COPOLYMER PROCEEDING FROM AT LEAST ONE AROMATIC VINYL COMPOUND
The invention relates to a method for producing a copolymer (CP) proceeding from at least one aromatic vinyl compound (A), in particular styrene and/or alpha-methylstyrene, and at least one further monomer (M) from the group consisting of acrylonitrile and methacrylate, the method comprising the following steps: a) polymerisation, b) separation of volatile components, wherein a vapour flow (B) is obtained, c) condensation of at least parts of the vapour flow (B), wherein a first condensate (KS1) and/or a second condensate (KS2) are/is recycled. The invention further relates to a device for performing the method.
The invention relates to a process for preparing a copolymer (CP) proceeding from at least one aromatic vinyl compound (A), in particular styrene and/or alpha-methylstyrene, and at least one further monomer (M) from the group consisting of acrylonitrile and methacrylate, the process comprising the following steps: a) polymerization, b) removal of volatile components to obtain a vapour stream (B), c) condensation of at least portions of the vapour stream (B), wherein a negative pressure is generated by means of a vacuum system (VA) and the vacuum system (VA) comprises at least one pump (P) which is designed as a liquid-ring pump system and is operated with a liquid (F), which on the pressure side of the pump (P) is separated by means of a liquid separator (FA) from a discharge gas withdrawn from the pump (P) and is supplied to the pump (P). The invention further relates to an apparatus for carrying out the process.
The invention relates to a method of producing styrene monomers by depolymerization (breakdown) of a styrene-copolymer-containing polymer mass, a device for carrying out the method, the use of a styrene copolymer for producing styrene monomers by thermal depolymerization and the use of a styrene copolymer as an additive in the thermal depolymerization of polystyrene. The polymer mass contains I) 10 to 100 wt %, relative to the total weight of the polymer mass (A), of a styrene copolymer (I), comprising: Ia) 10 to 99 wt %, relative to the styrene copolymer (I), of repeating units (Ia) that originate from styrene; and Ib) 1 to 90 wt %, relative to the styrene copolymer (I), of repeating units (Ib) that originate from a monomer the homopolymers of which have a ceiling temperature of below 350° C.; and II) optionally 0 to 90 wt % polystyrene (II).
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
The invention relates to a thermoplastic molding composition (P) comprising: (A) 81.1 to 99.7 wt. -% of at thermoplastic polymer composition (A) comprising: (A-1) graft copolymer (A-1), and (A-2) thermoplastic matrix (A-2) based on vinylaromatic copolymers; (B) at least one hindered amine light stabilizing composition (B) comprising: (B-1) 0.2 to 0.9 wt.-%, of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure and (B-2) 0.1 to 0.9 wt.-%, of a hindered amine light stabilizer mixture having a monopiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the monopiperidine structure and (B-3) 0 to 2 wt.-%, of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups with at least one alkyl group at each of the 2 and 6 positions of the piperidine groups, (C) 0 to 10 wt.-%, of colorants, dyes and/or pigments (C); and (D) 0 to 5 wt.-%, of further additives (D) different from (B) and (C); provided that the thermoplastic molding composition (P) further comprises 0.001 wt.-% to 0.1 wt.-%, based on the total weight of the molding composition (P), of oligomers and/or polymers comprising ethylene and/or propylene repeating units or provided that the thermoplastic molding composition (P) further comprises 0 wt.-%, based on the total weight of the molding composition (P), of oligomers and/or polymers comprising ethylene and/or propylene repeating units (as component E), wherein the constituents (A) to (E) sum up to 100 wt.-% of the molding composition (P).
The invention relates to a method for preparing rubbers from a dispersion (1) containing the rubber, said method comprising: (a) feeding the dispersion (1), that contains the rubber, and a precipitation solution (3) into a precipitation tank (5), an aqueous suspension (9) that contains rubber particles being produced; (b) optionally sintering the rubber particles contained in the aqueous suspension (9) that contains rubber particles to form larger particles; (c) mechanically dewatering the aqueous suspension (9) that contains rubber particles, rubber particles (33) that contain residual moisture and a liquid phase (35) that contains fine-particle rubber being obtained, the liquid phase (35) that contains fine-particle rubber being returned to the precipitation tank (5).
The invention relates to a method for producing thermoplastic moulding compounds (73), said method comprising: (a) feeding a dispersion (1), that contains a rubber, and a precipitation solution (3) into a precipitation tank (5), an aqueous suspension (9) that contains rubber particles being produced; (b) optionally sintering the rubber particles contained in the aqueous suspension (9) that contains rubber particles to form larger particles; (c) mechanically dewatering the aqueous suspension that contains rubber particles, rubber particles (33) that contain residual moisture and a liquid phase (35) that contains fine-particle rubber being obtained; (d) feeding the rubber particles (33) that contain residual moisture into an extruder (57), the extruder (57) comprising a drawing-in zone (55), a dewatering section (59), at least one feed section (65) for at least one further polymer (67) and/or additives, a mixing section (69), and a discharge zone (71), the liquid phase that contains residual rubber separated in the dewatering section (59) being collected in a buffer tank (63), the buffer tank (63) comprising at least one agitator (75); and returning the liquid phase (77) that contains residual rubber collected in the buffer tank (63) to the precipitation tank (5).
50505050 from 10 to 220 nm); wherein the metering of the monomers and the metering of the initiator are started simultaneously, the metering of the monomers occurs continuously over 3.50 to 4.25 hours, and the entire initiator is metered in 4.50 to 5.25 h and the metering rate of the initiator is 0.25 to 0.75 pbw/h in the first 20 to 40 minutes, and 0.03 to 0.08 pbw/h thereafter, is used for the production of thermoplastic ABS moulding compounds with good processability and surface quality.
50505050 10 to 220 nm); wherein, relative to the polybutadiene latexes A to C, with the sum thereof being 100 wt.%, the proportion of polybutadiene latex C is 36 to 43 wt.%, and the weight ratio A:B of polybutadiene latexes A and B is 1.1:1 to 5:1, can be advantageously used for the provision of thermoplastic ABS moulding compounds with a good property combination.
The invention relates to a method for improving the degradation stability of a polystyrene composition in recycling processes. The invention also relates to the use of less than 0.4 wt.-% of stabilizer components for improving the degradation stability of polystyrene compositions in recycling processes and to polystyrene compositions with improved degradation stability.
C08L 25/04 - Homopolymères ou copolymères du styrène
C08L 51/00 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères
C08L 9/00 - Compositions contenant des homopolymères ou des copolymères d'hydrocarbures à diènes conjugués
C08J 11/06 - Récupération ou traitement des résidus des polymères sans réaction chimique
39.
RECYCLED, THERMALLY STABLE POLYSTYRENE COMPOSITION AND PROCESS FOR PROVIDING SUPERIOR THERMAL STABILITY IN THE MECHANICAL RECYCLING OF POLYSTYRENE
The invention relates to a recycled, thermally stable polystyrene composition P, comprising a recycled polystyrene composition A, which comprises at least one polystyrene A-1 that is prepared by a thermally initiated and/or 1,1-bis(tert-butylperoxy)-3,3,5-trimethylcyclohexane initiated radical polymerization, and at least one sterically hindered phenolic antioxidant as component B. The invention also relates to a process for providing superior thermal stability in the mechanical recycling of polystyrene. Further, a recycled, thermally stable polystyrene composition P, a process for preparing the recycled, thermally stable polystyrene composition P and the use of the recycled, thermally stable polystyrene composition P for preparing molded articles are described.
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08J 11/04 - Récupération ou traitement des résidus des polymères
C08F 279/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères de monomères contenant plusieurs liaisons doubles carbone-carbone tels que définis dans le groupe sur des polymères de diènes conjugués
B29B 17/00 - Récupération de matières plastiques ou d'autres constituants des déchets contenant des matières plastiques
40.
WEATHERING-RESISTANT STYRENE COPOLYMER MOLDING COMPOSITIONS WITH REDUCED MOLD DEPOSIT FORMATION FOR HIGH GLOSS APPLICATIONS
The invention relates to a molding composition (P) comprising: (A) 81.7 to 99.4 wt.-% of at least one thermoplastic polymer composition (A); (B) at least one hindered amine light stabilizing composition (B) comprising: (B-1) 0.1 to 0.9 wt.-% of a hindered amine light stabilizer mixture having a monopiperidine structure, (B-2) 0 to 0.4 wt.-% of at least one hindered amine light stabilizer having a dipiperidine structure with at least one alkyl group at each of the 2 and 6 positions of the dipiperidine structure and (B-3) 0.5 to 2 wt. -% of at least one hindered amine light stabilizer having a polymeric structure comprising piperidine groups (C) 0 to 10 wt.-% of one or more colorants, dyes and/or pigments (C); and (D) 0 to 5 wt.-%, based on the total weight of the molding composition (P), of one or more further additives (D); wherein constituents (A) to (D) sum up to 100 wt.-% of molding composition (P).
The present invention relates to transparent and flexible styrene butadiene copolymer compositions having high softness and temperature resistance as well as good processability, and the process for their preparation. Further, the invention is directed to shaped articles produced from the inventive polymer composition, and the use of said polymer composition for preparing moldings, in particular for medical applications, in particular medical drip chambers.
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
A61M 5/14 - Dispositifs de perfusion, p. ex. perfusion par gravitéPerfusion sanguineAccessoires à cet effet
42.
METHOD FOR PRODUCING ASA OR ABS GRAFT COPOLYMERS WITH REDUCED DISCOLORATION
The invention relates to a method for producing at least one ASA or ABS graft copolymer B with reduced discoloration, including a single- or double-stage production of a latex of the graft copolymer B by adding and carrying out an emulsion polymerization of vinyl aromatic and nitrile monomers in the presence of an acrylate or diene graft base B1 in order to form a graft shell B2, wherein a part of the vinyl aromatic monomer is metered in immediately after the vinyl aromatic nitrile monomer has been completely added.
C08F 265/04 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères d'esters
C08F 279/04 - Monomères vinylaromatiques et nitriles comme seuls monomères
C08F 285/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères greffés préformés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
The invention relates to a method for producing at least one ASA or ABS graft copolymer (B) with reduced discoloration, including a production of a latex of the graft copolymer (B) by adding and carrying out an emulsion polymerization of vinyl aromatic and nitrile monomers in the presence of an acrylate or diene graft base (B1) in order to form a graft shell (B2), wherein a radical scavenger is added after the monomers have been completely added. A precipitation is then carried out at 30 to 95 °C, a sintering process is carried out at 85 to 150 °C, and the obtained graft copolymer B latex is dewatered.
C08F 265/04 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères d'esters
C08F 285/00 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères greffés préformés
C08F 279/04 - Monomères vinylaromatiques et nitriles comme seuls monomères
C08F 6/00 - Traitements postérieurs à la polymérisation
C08F 2/42 - Polymérisation utilisant des régulateurs, p. ex. des agents d'arrêt de chaîne utilisant un agent d'arrêt instantané de la polymérisation
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
Thermoplastic molding compositions comprising (a) 97 to 99.85 wt.-% S/MMA-copolymer (MMA: 30 to 60 wt.-%) (a); (b) 0.1 to 1.5 wt.-% HALS combination (b) consisting of: (Ill) HMW-HALS (Mn)>1800 g/mol, and (b2) LMW-HALS (Mn)≤800 g/mol; (c) 0.05 to 1.0 wt.-% organic UV absorber (c); (d) optionally up to 0.5 wt.-% additive; wherein the ratio (b1):(b2) is 12:1 to 1:2; and the ratio (b):(c) is 5:1 to 1:5 are used for outdoor applications in the construction and automotive sector.
The invention relates to expandable polymer particles with a content of recycled material based on styrene polymers, to a method for producing same, and to the use of the expandable polymer particles in a molded foam part. The expandable polymer particles contain 10 to 99 wt.%, based on the total weight, of at least one recycled material (A), which comprises at least one styrene polymer (A-1) and which largely consists of styrene polymers, 1 to 10 wt.%, based on the total weight, of at least one propellant (C), and optionally at least one primary polymer (B), at least one nucleating agent (D), and/or at least one additive (E).
The invention relates to expanded thermoplastic polymer particles with a content of recycled material based on styrene polymers, to a method for producing same, and to the use of the expanded polymer particles in a molded foam part. The expanded thermoplastic polymer particles contain 10 to 99 wt.%, based on the total weight, of at least one recycled material (A), which comprises at least one styrene polymer (A-1) and which largely consists of styrene polymers, 1 to 90 wt.%, based on the total weight, of at least one primary polymer (B), and optionally at least one propellant (C), at least one nucleating agent (D), and/or at least one additive (E).
The invention relates to expandable polymer particles based on styrene polymers, to a process for the preparation thereof and to the use of the expandable polymer particles in a molded foam part. The polymer particles contain A) 87 to 99 wt. % of one or more styrene polymers (A), in relation to the total weight of (A), (B) and (C); B) 1 to 10 wt. % of one or more foaming agents (B); C) 0 to 3 wt. % of one or more nucleators or nucleating agents C); and optionally further additives (Z) in amounts which do not impair the domain formation and the foam structure resulting therefrom.
C08J 9/232 - Façonnage d'articles en mousse par frittage de particules expansibles
C08J 9/00 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement
C08J 9/14 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable par un agent physique de gonflage organique
The invention relates to a polymer composition P comprising: A: 0.1 to 50 parts by weight of at least one post-consumer recycled polymer as component A; B: 50 to 99.9 parts by weight of at least one post-consumer recycled vinylaromatic copolymer as component B, wherein the post-consumer recycled polymer A is dissolved in the vinylaromatic copolymer B, and/or wherein the post-consumer recycled polymer A is dispersed in form of discontinuous phase domains in a continuous phase of the vinylaromatic copolymer B and wherein the discontinuous phase of the post-consumer recycled polymer A at least comprises phase domains having an average diameter in the range of > 30 nm to ≤ 5 µm.
A heat-sealable multilayer film comprising: a) 1% to 50% by weight of heat-sealable polymer layer (A), b) 1% to 99% by weight of polymer layer (C), and c) 0% to 95% by weight of polymer layer (B), with polymer layer (A) comprising: A1) 20% to 90% by weight of impact-resistant polystyrene and A2) 5% to 50% by weight of vinylaromatic-diene block copolymer; and polymer layer (B) comprising impact-resistant polystyrene, vinylaromatic-diene block copolymer, and/or mixtures of styrene homopolymers or vinylaromatic-diene graft copolymers with vinylaromatic-diene block copolymers; and polymer layer (C) having a melting temperature of ≥170° C.; and polymer layer (A) comprising) i) 66% to 99% by volume of a vinylaromatic hard phase and ii) 1% to 34% by volume of a diene soft phase surrounded by the hard phase and taking the form of spheres/cylinders.
B65B 7/28 - Fermeture de réceptacles ou récipients semi-rigides ou rigides, non déformés par le contenu ou n'en prenant pas la forme, p. ex. boîtes ou cartons en appliquant des fermetures séparées préformées, p. ex. couvercles, capuchons
B29C 48/00 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet
B29C 48/08 - Moulage par extrusion, c.-à-d. en exprimant la matière à mouler dans une matrice ou une filière qui lui donne la forme désiréeAppareils à cet effet caractérisées par la forme à l’extrusion de la matière extrudée plate, p. ex. panneaux flexible, p. ex. pellicules
B29C 48/21 - Articles comprenant au moins deux composants, p. ex. couches coextrudées les composants étant des couches les couches étant jointes à leurs surfaces
B32B 7/12 - Liaison entre couches utilisant des adhésifs interposés ou des matériaux interposés ayant des propriétés adhésives
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 27/18 - Produits stratifiés composés essentiellement de résine synthétique caractérisée par l'emploi d'additifs particuliers
B32B 27/30 - Produits stratifiés composés essentiellement de résine synthétique comprenant une résine vinyliqueProduits stratifiés composés essentiellement de résine synthétique comprenant une résine acrylique
B32B 27/34 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyamides
B32B 27/36 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyesters
B65D 65/40 - Emploi de stratifiés pour des buts particuliers d'emballage
The invention relates to a process for depolymerization of polymer compositions with decomposition of halogen-containing organic compounds, wherein the polymer composition contains at least one styrene-containing polymer and at least one halogen-containing organic compound. The addition of one or more inorganic basic compounds in the depolymerization simultaneously promotes the decomposition of the halogen-containing organic compound and favors the depolymerization.
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
C08J 11/16 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance inorganique
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
51.
METHOD TO IMPROVE SURFACE GLOSS STABILITY OF ACRYLONITRILE-BUTADIENE-STYRENE COPOLYMER COMPOSITIONS
The invention relates to a method for providing an acrylonitrile-butadiene-styrene copolymer composition (ABS) with improved the surface gloss stability by admixing a virgin acrylonitrile- butadiene-styrene copolymer composition (v-ABS), with 10 to 99 wt.-%, based on the ABS, of at least one recycled acrylonitrile-butadiene-styrene copolymer composition (r-ABS), wherein the at least one recycled acrylonitrile-butadiene-styrene copolymer composition (r-ABS) has passed at least one separate thermal compounding step prior to the admixing step. Further disclosed is a process for preparing the ABS composition and the use of the ABS composition for preparing molding compositions.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
(1) Unprocessed artificial resins and unprocessed plastics (in the form of beads); unprocessed artificial resins and unprocessed plastics made from recycled plastics; unprocessed artificial resins and unprocessed plastics based on renewable resources; each of the above being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins.
(2) Semi-finished products of plastic (in the form of profiles, foils, sheets, rods, pipes, blocks); recycled compound plastics; recycled compound plastics for use in manufacture; recycled plastic for use in manufacture; recycled plastics; compound plastics based on renewable resources; compound plastics for use in manufacture based on renewable resources; plastics based on renewable resources; plastics for manufacture based on renewable resources; packing, stopping and insulating materials formed from plastics including recycled plastics and plastics based on renewable resources; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
(3) Building materials formed from plastics including recycled plastics and plastics based on renewable resources; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
(1) Unprocessed artificial resins and unprocessed plastics (in the form of beads); unprocessed artificial resins and unprocessed plastics being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins.
(2) Semi-finished products of plastic (in the form of profiles, foils, sheets, rods, pipes, blocks); plastics for use in manufacture; compound plastics; compound plastics for use in manufacture; packing, stopping and insulating materials formed from plastics; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
(3) Building materials formed from plastics; building materials formed from plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics in the form of beads; unprocessed artificial resins and unprocessed plastics made from recycled plastics; unprocessed artificial resins and unprocessed plastics based on renewable resources; each of the above being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins. Semi-finished products of plastic in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks; recycled compound plastics in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks for use in further manufacture; recycled compound plastics in the form of beads or pellets for use in manufacture; recycled plastic in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks for use in manufacture; recycled plastics in the form of beads or pellets for use in manufacture; compound plastics based on renewable resources in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks; compound plastics in the form of beads or pellets for use in manufacture based on renewable resources; plastics based on renewable resources in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks; plastics in the form of beads or pellets for manufacture based on renewable resources; packing, sealing and insulating materials formed from plastics including recycled plastics and plastics based on renewable resources; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins. Building materials formed from plastics including recycled plastics and plastics based on renewable resources, namely, plastic tiles, plastic wallboards, plastic floorboards, plastic building boards, plastic landscape edgings, plastic conduits for drainage and irrigation, plastic boundary marking posts, plastic security windows allowing communication, plastic water conduits for roofs and balconies, plastic pipe supports, composite lumber made of recycled plastic, plastic road studs for marking out roads, plastic oil and debris traps for storm drainage, plastic posts with reflective UV coated discs attached, plastic support pads for piers for manufactured home, plastic pedestals for elevating pavers, multilayer panels of plastic for use in building, modular plastic decking to serve as a ground cover, crash barriers of plastic for roads, plastic reinforced wall panels for use as sound and light barriers, plastic webbing used to reinforce bituminous waterproofing sheets, non-metal barricades comprised of plastic, non-metal floors comprised primarily of plastic, non-metal decks comprised primarily of plastic, plastic extrusions, namely decking, each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics in the form of beads; unprocessed artificial resins and unprocessed plastics being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins. Semi-finished products of plastic in the form of semi-finished profiles, foils, sheets, rods, pipes, blocks; plastics in the form of beads or pellets for use in manufacture; compound plastics in the form of semi-finished profiles, foils, sheets, rods, tubes, blocks; compound plastics in the form of beads or pellets for use in manufacture; packing, sealing and insulating materials formed from plastics; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins. Building materials formed from plastics, namely, plastic tiles, plastic wallboards, plastic floorboards, plastic building boards, plastic landscape edgings, plastic conduits for drainage and irrigation, plastic boundary marking posts, plastic security windows allowing communication, plastic water conduits for roofs and balconies, plastic pipe supports, composite lumber made of recycled plastic, plastic road studs for marking out roads, plastic oil and debris traps for storm drainage, plastic posts with reflective UV coated discs attached, plastic support pads for piers for manufactured home, plastic pedestals for elevating pavers, multilayer panels of plastic for use in building, modular plastic decking to serve as a ground cover, crash barriers of plastic for roads, plastic reinforced wall panels for use as sound and light barriers, plastic webbing used to reinforce bituminous waterproofing sheets, non-metal barricades comprised of plastic, non-metal floors comprised primarily of plastic, non-metal decks comprised primarily of plastic, plastic extrusions, namely decking; building materials formed from plastics, namely, plastic tiles, plastic wallboards, plastic floorboards, plastic building boards, plastic landscape edgings, plastic conduits for drainage and irrigation, plastic boundary marking posts, plastic security windows allowing communication, plastic water conduits for roofs and balconies, plastic pipe supports, composite lumber made of recycled plastic, plastic road studs for marking out roads, plastic oil and debris traps for storm drainage, plastic posts with reflective UV coated discs attached, plastic support pads for piers for manufactured home, plastic pedestals for elevating pavers, multilayer panels of plastic for use in building, modular plastic decking to serve as a ground cover, crash barriers of plastic for roads, plastic reinforced wall panels for use as sound and light barriers, plastic webbing used to reinforce bituminous waterproofing sheets, non-metal barricades comprised of plastic, non-metal floors comprised primarily of plastic, non-metal decks comprised primarily of plastic, plastic extrusions, namely decking, made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
56.
ACRYLONITRILE STYRENE ACRYLATE (ASA) COPOLYMER COMPOSITION HAVING GOOD UV RESISTANCE WITH REDUCED UV ABSORBER CONTENT
A thermoplastic molding composition P comprising: AB: at least one graft copolymer composition AB, consisting of at least one thermoplastic copolymer A and at least one graft copolymer B; C: at least one UV absorber as component C; and D: optionally at least one further additive as component D, wherein the UV absorber component C comprises at least one organic or inorganic component having an UV absorption at least in a wavelength range ≤ 380 nm; and wherein the UV absorber component C is at least partially selected from at least one black pigment, at least one white pigment and/or at least one dye having an UV absorption at least in a wavelength range ≤ 380 nm.
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08K 3/013 - Charges, pigments ou agents de renforcement
C08K 3/014 - Stabilisateurs prévenant les changements dus à l’oxydation, la chaleur, la lumière ou l’ozone
A thermoplastic molding composition P comprising: AB: at least one graft copolymer composition AB, consisting of at least one thermoplastic copolymer A and at least one graft copolymer B; C: at least one hindered amine light stabilizer as component C; D: at least one antioxidant as component D; E: optionally at least one co-stabilizer as component E; F: optionally at least one UV absorber as component F; and G: optionally at least one further additive as component G, wherein at least one of components E and F is present in an amount of at least 0.05 % by weight based on the molding composition P.
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
122 comprising repeating units of olefinic monomers and vinylaromatic monomers, in particular ethylene, at least one olefinic monomer having 3 to 10 carbon atoms and styrene, wherein the proportion of the repeating units of vinyl aromatic monomers – based on the entire block copolymer (b) - is from 25 to 85 wt.-%; and (c) 0 to 2 wt.-% of additive(s) and/or processing aid(s) (c); wherein the total amount of components (a), (b), and (c) is 100 wt.-%.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
59.
CONTINUOUS METHOD OF MANUFACTURING ACRYLONITRILE-CONTAINING COPOLYMERS WITH REDUCED CONTENT OF PROPIONITRILE
The invention relates to a process for the continuous preparation of a polymer product comprising a polymer based on acrylonitrile (AN) and one or more further monomer(s) (FM) copolymerizable with (AN), wherein the process leads to a polymer product with reduced content of propionitrile. The invention further relates to the polymer product, its use for the preparation of an article for food contact, child contact and/or medical applications, and a process for the preparation of said article.
High clarity and ductile molding composition comprising: (a) 71 to 98.99 wt.-% of at least one random copolymer (a) made from 44 to 64 wt.-% of at least one vinylaromatic monomer (a11), and 36 to 56 wt.-%, methyl methacrylate (a12); (b) 1 to 28.99 wt.-% of at least one vinylaromatic-diene block copolymer (b) which comprises at least one hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes, and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of diene-based on entire block copolymer (b) is 47 to 67 wt.-%; (c) 0.01 to 1.0 wt.-% of at least one light stabilizer (c); (d) 0 to 1.0 wt.-% of at least one antioxidant (d); and (e) 0 to 5 wt.-% of one or more additive(s) and/or processing aid(s) (e), different from the light stabilizer(s) (c) and antioxidant(s) (d); have good light stability and processability.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
The invention relates to a process for producing small-cell foams from a styrene-polymer component (S) and an additive of formula (I), wherein Z represents a C1-C5-alkylene group or an oxygen or sulfur atom, R1 and R2 represent, e.g., a C3-C12-alkyl residue, C3-C12-cycloalkyl residue or benzyl residue; and R3, R4, R5 and R6 represent hydrogen or a C1-C6-alkyl residue, comprising the steps of: —heating at least a styrene-polymer component (S) to obtain a molten, polymeric molding compound, —introducing a propellant (T) into the molten molding compound to form a foamable composition (Z), and—foaming the foamable composition to obtain a foamed molding, the molten polymeric molding compound containing at least one carboxylic acid derivative of the general formula (I).
The invention relates to a process for producing small-cell foams from a styrene-polymer component (S) and an additive of formula (I), wherein Z represents a C1-C5-alkylene group or an oxygen or sulfur atom, R1 and R2 represent, e.g., a C3-C12-alkyl residue, C3-C12-cycloalkyl residue or benzyl residue; and R3, R4, R5 and R6 represent hydrogen or a C1-C6-alkyl residue, comprising the steps of: —heating at least a styrene-polymer component (S) to obtain a molten, polymeric molding compound, —introducing a propellant (T) into the molten molding compound to form a foamable composition (Z), and—foaming the foamable composition to obtain a foamed molding, the molten polymeric molding compound containing at least one carboxylic acid derivative of the general formula (I).
C08J 9/14 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable par un agent physique de gonflage organique
C08J 9/12 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable par un agent physique de gonflage
C08J 9/00 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement
C07C 233/43 - Amides d'acides carboxyliques ayant des atomes de carbone de groupes carboxamide liés à des atomes d'hydrogène ou à des atomes de carbone acycliques ayant l'atome d'azote d'au moins un des groupes carboxamide lié à un atome de carbone d'un radical hydrocarboné substitué par des groupes amino avec le radical hydrocarboné substitué lié à l'atome d'azote du groupe carboxamide par un atome de carbone d'un cycle aromatique à six chaînons ayant l'atome de carbone du groupe carboxamide lié à un atome d'hydrogène ou à un atome de carbone d'un squelette carboné saturé
The invention relates to a thermoplastic molding composition comprising 5.0 to 57 wt.-% ABS graft copolymer (A); 30.5 to 80 wt.-% SAN copolymer (B) 1.5 to 9.5 wt.-% copolymer (C) with epoxy, maleic anhydride or maleic imide functions; 5 to 29 wt.-% of hollow glass microspheres (D); 6 to 12 wt.-% of glass fibers (E); 0 to 5 wt.-% additives and/or processing aids (F), having a low density and high strength, and a process for its preparation, shaped arti-cles thereof, and its use in the electronics sector.
The invention relates to thermoplastic molding composition, comprising the components (a), (b) and (c) and optionally (d), comprising (a) 90 to 99.5% by weight of at least one copolymer (a), which comprises 30 to 90% by weight of vinylaromatic monomer (a1), and 10 to 70%by weight of methyl methacrylate (a2); (b) 0.1 to 1.5% by weight of at least two dye components (b1) and (b2) of different color families, soluble in the thermoplastic molding composition; (c) 0.01 to 5% by weight of carbon black pigment (c) and (d) optionally up to 5% by weight of one or more further additives (d), where the thermoplastic composition has a deep-black color with L*-values from 0.5 to 2.0 as measured with 45°/0° geometry, a high gloss of more than 93.0 and wherein the total weight of components (a) to (d) give a total of 100 percent by weight.
A thermoplastic polymer composition (A) leads to reduced migration of stabilisers or other ingredients (I), if it contains e.g. 50 to 90 wt. %, relative to the polymer composition (A), of a thermoplastic polymer (P), which has migration barrier properties, as well as at least one stabiliser component (S) and/or a further ingredient (I), wherein the following is true for the polymer composition (A): a) the glass transition temperature Tg of the thermoplastic polymer (P) is greater than the use temperature; and b) the polymer-specific constant for polymers (Ap) of the thermoplastic polymer (P) is less than I; and c) the derived diffusion coefficient (Dp) of the thermoplastic polymer (P) for mineral oil is less than 10−12 cm2/s at 20° C.; and d) the morphology of the thermoplastic polymer (P) is either single-phase homogeneous, or two-phase heterogeneous.
The thermoplastic ABS molding composition comprises at least one thermoplastic copolymer matrix A, at least one ABS-copolymer B, optionally one or more polymers C, and one or more additives D, wherein, in the thermoplastic ABS molding composition, in particular after thermoplastic processing by extrusion, thermoforming and/or injection molding, the grafted rubber of component B is present in form of small particles.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics (in the form of beads); unprocessed artificial resins and unprocessed plastics being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins. Semi-finished products of plastic (in the form of profiles, foils, sheets, rods, pipes, blocks); plastics for use in manufacture; compound plastics; compound plastics for use in manufacture; packing, stopping and insulating materials formed from plastics; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins. Building materials formed from plastics; building materials formed from plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
01 - Produits chimiques destinés à l'industrie, aux sciences ainsi qu'à l'agriculture
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Unprocessed artificial resins and unprocessed plastics (in the form of beads); unprocessed artificial resins and unprocessed plastics made from recycled plastics; unprocessed artificial resins and unprocessed plastics based on renewable resources; each of the above being styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methylstyrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate-butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers and blends of styrene polymers or copolymers with other thermoplastic resins. Semi-finished products of plastic (in the form of profiles, foils, sheets, rods, pipes, blocks); recycled compound plastics; recycled compound plastics for use in manufacture; recycled plastic for use in manufacture; recycled plastics; compound plastics based on renewable resources; compound plastics for use in manufacture based on renewable resources; plastics based on renewable resources; plastics for manufacture based on renewable resources; packing, stopping and insulating materials formed from plastics including recycled plastics and plastics based on renewable resources; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins. Building materials formed from plastics including recycled plastics and plastics based on renewable resources; each of the above being plastics made of styrene polymers or styrene copolymers including acrylonitrile-butadiene-styrene-, styrene-acrylonitrile-, alpha-methyl styrene-acrylonitrile-, styrene-methyl methacrylate-, methyl methacrylate-acrylonitrile-butadiene-styrene-, methyl methacrylate butadiene-styrene-, styrene-butadiene-, acrylonitrile-styrene-acrylate-, styrene-maleic anhydride-copolymers, and plastics made of blends of styrene polymers or copolymers with other thermoplastic resins.
Polymer compositions comprising stiff and tough star shaped styrene butadiene block-copolymers A1 and A2 can be used for making shrink films. Block copolymer A2 preferably has the structure
B coupled by a coupling agent X.
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
The present invention relates to a thermoplastic impact resistant copolymer composition having an increased luminous transmittance in relation to conventional impact resistant compositions, a process for its preparation and shaped articles made therefrom. The composition comprises 25 to 45% by weight of at least one acrylate-based graft copolymer and 25 to 75% by weight of at least one random copolymer of alkyl (meth) acrylate and vinylaromatic monomers.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08F 265/04 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères d'esters
70.
HIGH CLARITY AND LOW HAZE UV STABILIZED STYRENE AND METHYL METHACRYLATE COPOLYMERS
The invention relates to a thermoplastic composition (P) comprising a copolymer (a) of vinylaromatic monomer and methyl methacrylate monomer, at least two hindered amine light stabilizers, at least two UV absorbers, and optionally further additives. It further relates to a process for the preparation of the thermoplastic composition (P), a process for the preparation of a shaped article, the shaped article, and the use of the components for the preparation of a thermoplastic composition (P). The thermoplastic composition (P) has high clarity, low haze, and advantageous high UV stability.
A polymer composition comprises a polymer mixture (A) of linear vinylaromatic diene block copolymers (A1), (A2) and (A3) and optionally vinylaromatic diene copolymer (A4) and has improved organoleptic properties and reduces film blocking for extruded film applications. A process for its preparation, and the use of said polymer compositions for the production of films is described. The soft phase of mixture (A) built from diene has a proportion of 15 to 34 vol.-% and has a cylindrical morphology. The Mn of mixture (A) is at least 120,000 g/mol.
C08L 25/10 - Copolymères du styrène avec des diènes conjugués
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
A multilayer article for applications in the household sector comprises a core layer a) consisting of a recycled plastic material comprising at least one recycled nitrile-diene-vinylaromatic graft copolymer; and a layer b) consisting of a virgin plastic material comprising at least one virgin nitrile-diene-vinylaromatic graft copolymer; wherein the portion of the core layer a) is 20 to 50 wt.-%, and the core layer a) is encapsulated by layer b).
B32B 3/04 - Caractérisés par des caractéristiques de forme en des endroits déterminés, p. ex. au voisinage des bords caractérisés par une couche pliée au bord, p. ex. par-dessus une autre couche
B29C 45/16 - Fabrication d'objets multicouches ou polychromes
B32B 27/08 - Produits stratifiés composés essentiellement de résine synthétique comme seul composant ou composant principal d'une couche adjacente à une autre couche d'une substance spécifique d'une résine synthétique d'une sorte différente
B32B 27/30 - Produits stratifiés composés essentiellement de résine synthétique comprenant une résine vinyliqueProduits stratifiés composés essentiellement de résine synthétique comprenant une résine acrylique
B32B 38/18 - Manipulation des couches ou du stratifié
B32B 27/32 - Produits stratifiés composés essentiellement de résine synthétique comprenant des polyoléfines
B32B 37/14 - Procédés ou dispositifs pour la stratification, p. ex. par polymérisation ou par liaison à l'aide d'ultrasons caractérisés par les propriétés des couches
The invention proposes a linear vinylaromatic diene block copolymer (A) and polymer compositions comprising such SBC for the production of films having organoleptically improved, low film-blocking properties. Block copolymer (A) has sharp block transitions and a molecular weight Mn of at least 140,000 g/mol, wherein the proportion of a soft phase built from diene is from 15 to 35 vol.-%, and which soft phase - embedded in a vinylaromatic hard phase - has a cylindrical morphology.
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
A thermoplastic polymer composition (I) comprising: (A) block copolymer A comprising A1: 60 to 95 wt.-% vinyl aromatic monomer, and A2: 5 to 40 wt.-% conjugated diene; (B) a stabilizer combination consisting of: B1: 200 to 2500 ppm 2,6-di-tert-butyl-4-(4,6-bis(octylthio)-1,3,5-triazin-2-ylamino) phenol, B2: 500 to 2500 ppm 2-[1-(2-hydroxy-3,5-di-tert-pentylphenyl)ethyl]-4,6-di-tert-pentylphenyl acrylate and/or 2-tert-butyl-6-(3-tert-butyl-2-hydroxy-5-methylbenzyl)-4-methylphenyl acrylate, and B3: 500 to 2000 ppm tris(2,4-di-tert.-butylphenyl)phosphite; (C) 0 to 5000 ppm stabilizers different from (B1), (B2) and (B3); (D) optionally additives and/or processing aids other than (B) and (C), (E) optionally thermoplastic polymer TP other than block copolymer A, a process for its preparation, and its use for the preparation of shrink films is described.
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
75.
DUAL INITIATOR GRAFTING PROCESS OF POLYBUTADIENE LATEX BY STYRENE/ACRYLONITRILE
An emulsion polymerization process for preparation of ABS graft copolymer latex having reduced residual monomer content, wherein a grafting step c) comprises the steps: c1): feeding of 10 to 45 wt.-% of styrene and acrylonitrile in one portion to agglomerated butadiene rubber latex and addition of redox system initiator, then polymerization; c2): feeding remaining monomers in portions or continuously and further addition of redox system initiator; c3): addition of inorganic free radical initiator and continuation of polymerization, leads to ABS graft copolymers and thermoplastic molding compositions which can be used in the automotive industry.
The invention relates to thermoplastic molding compositions (T) comprising 10 to 99% by weight, based on the total weight of the molding composition (T), of at least one type of recycled polymer material (A), containing 20 to 100% by weight, based on recycled material (A), of recycled acrylonitrile-butadiene-styrene copolymer (A1); up to 80% by weight of at least one recycled styrene-acrylonitrile copolymer (A2); up to 10% by weight of recycled polymeric impurities (A3), different from (A1) and (A2); 0.1 to 30% by weight, based on the total weight of the molding composition (T), of at least one graft copolymer (B), different from (A); 0.1 to 18% by weight, based on the molding composition (T), of block copolymer (C); and optionally up to 89.8% by weight of further polymer component (D), different from (A), (B) and (C); optionally up to 30% by weight of filler and/or reinforcing agent (E); and optionally up to 30% by weight of further additive (F).
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
77.
Method for the depolymerisation of polystyrene in the presence of foreign polymers
The invention relates to a method for producing styrene monomers by the depolymerisation of polystyrene in the presence of foreign polymers, such as polyolefins. Said method comprises the following steps: a) introducing a polymer composition (A) containing: I) 10 to 99.5% by weight, based on the polymer composition (A), of polystyrene (I); and II) 0.1 to 89.9% by weight of polyolefin (II); and/or III) 0.1 to 4.9% by weight of acrylonitrile-based polymer (III); and/or IV) 0.1 to 4.9% by weight of polyester (IV), into the reaction zone (R) of a pyrolysis reactor (P); b) thermal cracking the polystyrene contained in the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) at a temperature of between 400-1000° C., c) removing the product mixture (G) obtained from the reaction zone (R), d) cooling of the product mixture (G), and e) separating the styrene monomers from the further components.
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
B01J 8/24 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé"
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
505050 of 410 to 1000 nm), composed of: 40 to 80 wt.-% cross-linked C1 to C8 alkyl acrylate graft base G21 and 20 to 60 wt.-% SAN-copolymer graft shell G22; and 65 to 35 wt.-% SAN copolymer S2 (MVR 11 to 25 ml/10 min); (C): 10 to 40 wt.-% of at least one SAN copolymer (C) (MVR 11 to 70 ml/10 min); (D): 1 to 15 wt.-% EVA copolymer (D) (VA > 25 wt.-%); are particularly useful e.g. in the automotive industry.
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
High clarity and ductile molding composition comprising: (a) 71 to 90 wt.-% random copolymer made from 44 to 64 wt.-% vinylaromatic monomer and 36 to 56 wt.-%,methyl methacrylate; (b) 10 to 29 wt vinylaromatic-diene block copolymer comprising at least two hard blocks S made from vinylaromatic monomers and at least one soft block B made from dienes and/or at least one soft block B/S made from dienes and vinylaromatic monomers; where the proportion of the diene is from 47 to 67 wt.-%; and (c) 0 to 5 wt.-% additives and/or processing aids (c), have high hardness, heat resistance, and stiffness and can be used for home appliances.
C08L 25/14 - Copolymères du styrène avec des esters non saturés
C08L 33/12 - Homopolymères ou copolymères du méthacrylate de méthyle
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
80.
A PROCESS FOR THE PREPARATION OF LOW-DENSITY ABS COMPOSITES
A process for the preparation of low-density ABS composites Abstract A process for the preparation of a thermoplastic molding composition (TP) comprising components (A), (B), (C), (D) and, if present, (E): (A) 10 to 65 wt.-% ABS graft copolymer (A); (B) 30.5 to 80 wt.-% SAN copolymer (B); (C) 1.5 to 9.5 wt.-% copolymer (C) with epoxy, maleic anhydride and/or maleic imide functional group; (D) 3 to 29 wt.-% hollow glass microspheres (D); (E) 0 to 15 wt.-% additives and/or processing aids (E); comprises the following steps:15 (i) Premixing of 2-10 wt.-% component (A) with hollow glass microspheres (D); (ii) Mixing and melting of the remaining portion of component (A), components (B), (C) and, if present, (E), in the feeding section of an extruder, (iii) Addition of the pre-mixture obtained in step (i) to the melt obtained in step (ii) by a side-feeder in a zone of the extruder after the kneading section to obtain the thermoplastic molding composition (TP) by melt mixing.
A graft copolymer B composed of:5 B1: 45 to 70 wt.-% graft base B1, obtained by emulsion polymerization of: b11: 80 to 98.9 wt.-% C1 to C4-alkyl acrylate; b12: 1 to 19.9 wt.-% C9 to C22-alkyl(meth)acrylate; and b13: 0.1 to 10 wt.-% bi- or polyfunctional crosslinking monomer b13; B2: 30 to 55 wt.-% graft shell B2 obtained in presence of graft base B1 via emulsion 10 polymerization of: b21: 50 to 95 wt.-% vinylaromatic monomer b21, and b22: 5 to 50 wt.-% vinylcyan monomer b22; and thermoplastic molding compositions thereof can be used for applications in the automotive and construction industry.
C08F 265/04 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères d'esters
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
C08F 220/18 - Esters des alcools ou des phénols monohydriques des phénols ou des alcools contenant plusieurs atomes de carbone avec l'acide acrylique ou l'acide méthacrylique
82.
THERMOPLASTIC RECYCLING MOLDING COMPOSITION BASED ON RECYCLED ACRYLONITRILE-BUTADIENE-STYRENE COPOLYMERS AND PROCESS FOR ITS PREPARATION
The invention is directed to a thermoplastic recycling molding composition comprising recycled acrylonitrile-butadiene-styrene copolymer (r-ABS) as component A and virgin material as component B, wherein the component B is a mixture of at least two components selected from virgin thermoplastic polymers B1 and virgin lubricants B2, or wherein the component B is one or more polymer selected from polymers which are not homogenously miscible with rABS. Further, the present invention is directed to a process for the preparation of the thermoplastic recycling molding composition.
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
83.
IMPROVED PROCESS FOR PRODUCING THERMOPLASTIC ABS MOLDING COMPOSITIONS
The invention is directed to a process for producing a ABS composition comprising 30 - 80 wt.-% of copolymer A, 19.99 - 60 wt.-% of ABS-copolymer B, 0 - 40 wt.-% of polymer C and 0.01 - 20 wt.- % of additives D, having the steps: a) mixing the components A, B and D and optionally C, by using an extruder comprising: a first feeding zone FZ1, a preheating zone PZ, a mechanical dewatering zone DZ, in which component B is mechanically dewatered, and wherein: the mechanical dewatering zone DZ comprises at least one dewatering aperture, in par- ticular for liquid water; in a second feeding zone FZ2, at least part of component A and optionally part of component D are fed, preferably in melt and/or solid form, to the ex- truder, in a degassing zone DG component A and/or component B are degassed, and b) removing the ABS molding composition from a discharge zone CZ of the extruder.
C08F 236/10 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des monomères vinylaromatiques
The invention is directed to a process for producing a ABS composition comprising 30 - 80 wt.-% of copolymer matrix A, 19.99 - 60 wt.-% of ABS-copolymer B, 0 - 40 wt.-% of polymer C and 0.01 - 20 wt.- % of additives D, having the steps: a) mixing the components A, B and D and optionally C, by using an extruder comprising: a first feeding zone FZ1, a mechanical dewatering zone DZ, in which component B is mechanically dewatered, and wherein: the mechanical dewatering zone DZ comprises at least one dewatering aperture, in particular for liquid water; wherein the mechanical dewatering DZ zone comprises one or more elements made of a stainless steel material; in a second feeding zone FZ2, at least part of component A and optionally part of component D are fed, preferably in melt and/or solid form, to the extruder, in a degassing zone DG component A and/or component B are degassed, and b) removing the ABS molding composition from a discharge zone CZ of the extruder.
C08F 236/10 - Copolymères de composés contenant plusieurs radicaux aliphatiques non saturés et l'un au moins contenant plusieurs liaisons doubles carbone-carbone le radical ne contenant que deux doubles liaisons carbone-carbone conjuguées avec des monomères vinylaromatiques
85.
ABS MOLDING COMPOSITION FOR SHEET EXTRUSION AND THERMOFORMING WITH HIGH ESCR, HIGH COLOR AND THERMAL STABILITY AND LOW TENDENCY TO DELAMINATION
A thermoplastic molding composition comprising (A) 15 to 45 wt.-% graft copolymer (A) obtained by emulsion polymerization of styrene and acrylonitrile in presence of an agglomerated butadiene rubber latex (A1) with D50 of 150 to 800 nm; (B) 40 to 75 wt.-% copolymer (B) of styrene and acrylonitrile having a weight ratio of 80:20 to 65:35 and Mw of 150,000 to 300,000 g/mol, (C) 2.0 to 5.0 wt.-% elastomeric block copolymer (C) made from 15 to 65 wt.-% diene, and 35 to 85% by weight vinylaromatic monomer; (D) 2.0 to 5.0 wt.-% titanium dioxide pigment D comprising at least 95 wt.-% titanium dioxide and 1.7 to 3.3 wt.-% alumina; and (E) 0 to 7.0 wt.-% of at least one additive/processing aid (E) different from (D); having a high chemical resistance, high color and thermal stability and low tendency to delamination. This can be used for sheet extrusion and thermoforming, in particular as inner liner for a cooling apparatus.
C08F 257/02 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères de monomères aromatiques tels que définis dans le groupe sur des polymères de styrène ou de styrène substitué par des groupes alkyle
C08F 265/08 - Composés macromoléculaires obtenus par polymérisation de monomères sur des polymères d'acides monocarboxyliques non saturés ou de leurs dérivés tels que définis dans le groupe sur des polymères de nitriles
The invention relates to a process for the preparation of styrene monomers by depolymerising polystyrene, to a device for carrying out the process and to the use of a fluidised bed reactor for the depolymerisation of polystyrene. Said process comprising the following steps: a) feeding a polymer composition (A) containing 60 to 99.9 wt. polystyrene, based on the total weight of the polymer composition (A), into the reaction zone (R) of a pyrolysis reactor (P); b) thermally cracking the polystyrene contained in the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) at a temperature of between 400° C. to 1000° C. to obtain a product mixture (G) containing styrene monomers and other components; c) removing the product mixture (G) obtained in step b) from the reaction zone (R) of the pyrolysis reactor (P); d) cooling the product mixture (G) removed in step c) to obtain a condensed product mixture (K) containing styrene monomers and further components; and e) separating the styrene monomers from the further components of the condensed product mixture (K) obtained in step d), wherein the average residence time (Z) of the polymer composition (A) in the reaction zone (R) of the pyrolysis reactor (P) is from 0.01 sec to 10 sec.
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
87.
ABS MOLDING COMPOSITION WITH IMPROVED SURFACE QUALITY FOR PLATING APPLICATIONS
50ww of 85,000 to 190,000 g/mol; (C) 0.015 to 0.40 wt.-% vinylidene fluoride copolymer (C); and (D) 0.01 to 5 wt.-% further additive/processing aid (D) different from (C); can be used in painting or (electro)plating applications of thermoplastics.
Acrylonitrile-Butadiene-Styrene molding compositions having improved organoleptic properties comprising a rubber modified vinylaromatic copolymer composition obtained by mass (bulk) or solution polymerization in a continuous process, and use of these molding compositions for various applications (e.g. automotive parts) are described.
A process for producing styrene monomers from styrene oligomers comprises the following steps: a) providing a composition (A) comprising at least one type of styrene oligomer, wherein the composition (A) comprises at least 15 wt.-% of styrene dimers and/or styrene trimers; b) providing a depolymerization reactor (R) with a reaction zone (Z); c) feeding the composition (A) into the reaction zone (Z) of the reactor (R); d) depolymerizing the at least one type of styrene oligomer in the reaction zone (Z) to obtain a composition (B), comprising styrene monomers; e) removing the composition (B) from the reaction zone (Z); and f) isolating the styrene monomers from the composition (B); wherein the temperature (T) inside the reaction zone (Z) is above 500 °C to below 800 °C and the average residence time (tA) of the composition (A) in the reaction zone (Z) is greater than 0.01 s and less than 60 s.
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
2 are vinylaromatic hard polymer and S/B are soft random vinylaromatic/diene copolymer blocks; X is a coupling center; and b) 2.9 to 9.1 wt.-% plasticizer B.
C08L 53/02 - Compositions contenant des copolymères séquencés possédant au moins une séquence d'un polymère obtenu par des réactions ne faisant intervenir que des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères contenant des monomères vinylaromatiques et des diènes conjugués
A61M 39/00 - Tubes, raccords ou accouplements pour tubes, soupapes, voies d'accès ou similaires, spécialement adaptés pour un usage médical
C08F 297/04 - Composés macromoléculaires obtenus en polymérisant successivement des systèmes différents de monomère utilisant un catalyseur de type ionique ou du type de coordination sans désactivation du polymère intermédiaire utilisant un catalyseur du type anionique en polymérisant des monomères vinylaromatiques et des diènes conjugués
C08L 91/00 - Compositions contenant des huiles, graisses ou ciresCompositions contenant leurs dérivés
91.
PROCESS FOR PRODUCING A THERMOPLASTIC MOULDING COMPOUND COMPRISING A THERMOPLASTIC COPOLYMER A AND A GRAFT COPOLYMER B
C08F 6/00 - Traitements postérieurs à la polymérisation
C08L 51/04 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des caoutchoucs
B01J 8/24 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé"
F26B 3/08 - Procédés de séchage d'un matériau solide ou d'objets impliquant l'utilisation de chaleur par convection, c.-à-d. la chaleur étant transférée d'une source de chaleur au matériau ou aux objets à sécher par un gaz ou par une vapeur, p. ex. l'air le gaz ou la vapeur s'écoulant à travers le matériau ou les objets à sécher de façon à les rendre lâches, p. ex. pour former un lit fluidisé
C08L 25/12 - Copolymères du styrène avec des nitriles non saturés
92.
FILLER-CONTAINING THERMOPLASTIC POLYMER COMPOSITE MATERIAL REINFORCED WITH CONTINUOUS FIBERS AND HAVING GOOD SURFACE SMOOTHNESS
The invention relates to composite materials (organosheets) containing a thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, a sheet material consisting of continuous reinforcing fibers in a matrix composition comprising the molding compound is used, the thermoplastic molding compound containing at least one polyolefin, and optionally at least one further, polarity-functionalized polymer. The invention also relates to a process for producing the claimed composite material and to uses thereof.
The invention relates to polymer compositions that contain a thermoplastic molding compound A, at least one reinforcing fiber B and at least one inorganic filler material C, the polymer composition having excellent aesthetic quality after thermoplastic processing. The invention also relates to a process for preparing the claimed composition and to uses thereof.
C08L 51/06 - Compositions contenant des polymères greffés dans lesquels le composant greffé est obtenu par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carboneCompositions contenant des dérivés de tels polymères greffés sur des homopolymères ou des copolymères d'hydrocarbures aliphatiques ne contenant qu'une seule liaison double carbone-carbone
B29K 23/00 - Utilisation de polyalcènes comme matière de moulage
94.
PROCESS FOR PRODUCING A THERMOPLASTIC POLYMER-CONTAINING FIBER-REINFORCED COMPOSITE MATERIAL
The invention relates to a process for producing a fiber-reinforced composite material (organosheet) containing at least one thermoplastic molding compound, at least one continuous reinforcing fiber layer and at least one inorganic filler material. According to the invention, at least one sheet material consisting of continuous reinforcing fibers is embedded in a matrix composition comprising at least one thermoplastic molding compound, the thermoplastic molding compound including at least one thermoplastic polymer and optionally at least one polarity-functionalized polymer that contains repeat units of at least one functional monomer. The invention also relates to the composite materials produced according to the claimed method.
The present invention relates to a process for producing a three-dimensional component by means of selective laser sintering (SLS), wherein a processing temperature Tx is established in a build chamber, and a powder layer consisting of a thermoplastic polymer powder is provided in the build chamber. The thermoplastic polymer powder comprises a blend of a semicrystalline polymer, an amorphous polymer and a polymeric compatibilizer. The polymer powder is then melted in a spatially resolved manner by means of a directed beam of electromagnetic radiation, wherein binding of the regions of the melted and resolidified polymer layer by layer in multiple steps affords a three-dimensional component. In the process of the invention, the temperature in the build chamber during the performance of the individual steps varies by not more than +/−10% from the processing temperature Tx set. In addition, the processing temperature Tx differs by not more than +/−20 K from the processing temperature Tx(A) of a polymer powder comprising the corresponding semicrystalline polymer as the sole polymeric component.
B29C 64/153 - Procédés de fabrication additive n’utilisant que des matériaux solides utilisant des couches de poudre avec jonction sélective, p. ex. par frittage ou fusion laser sélectif
B33Y 70/00 - Matériaux spécialement adaptés à la fabrication additive
96.
UV RESISTANT SMMA COPOLYMERS WITH LOW HAZE AND HIGH CLARITY
Thermoplastic molding compositions comprising (a) 97 to 99.85 wt.-% S/MMA-copolymer (MMA: 30 to 60 wt.-%) (a); (b) 0.1 to 1.5 wt.-% HALS combination (b) consisting of: (b1) HMW-HALS (Mn) ≥ 1800 g/mol, and (b2) LMW-HALS (Mn) ≤ 800 g/mol; (c) 0.05 to 1.0 wt.-% organic UV absorber (c); (d) optionally up to 0.5 wt.-% additive; wherein the ratio (b1):(b2) is 12:1 to 1:2; and the ratio (b):(c) is 5:1 to 1:5 are used for outdoor applications in the construction and automotive sector.
The invention relates to expandable polymer particles based on styrene polymers, to a process for the preparation thereof and to the use of the expandable polymer particles in a molded foam part. The polymer particles contain A) 87 to 99 wt.% of one or more styrene polymers (A), in relation to the total weight of (A), (B) and (C); B) 1 to 10 wt.% of one or more foaming agents (B); C) 0 to 3 wt.% of one or more nucleators or nucleating agents C); and optionally further additives (Z) in amounts which do not impair the domain formation and the foam structure resulting therefrom.
C08J 9/00 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement
C08J 9/12 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable par un agent physique de gonflage
C08J 9/14 - Mise en œuvre de substances macromoléculaires pour produire des matériaux ou objets poreux ou alvéolairesLeur post-traitement utilisant des gaz de gonflage produits par un agent de gonflage introduit au préalable par un agent physique de gonflage organique
C08J 9/232 - Façonnage d'articles en mousse par frittage de particules expansibles
The invention relates to a method for depolymerizing polymer masses while degrading halogen-containing organic compounds, the polymer mass containing at least one styrene-containing polymer and at least one halogen-containing organic compound. Degradation of the halogen-containing organic compound is promoted and depolymerization is facilitated when one or more inorganic basic compounds are added during polymerization.
C08J 11/16 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation par traitement avec une substance inorganique
99.
PREPARATION OF DIENE POLYMER LATEX OF HIGH GEL CONTENT AND CONTROLLED CROSS LINKING
An improved process comprising steps (1) to (6) for the preparation of a diene polymer seed latex having a high gel content and improved swelling index, its use for the prepa- ration of ABS graft rubber copolymers and thermoplastic molding compositions com- prising said ABS graft rubber copolymers and their use in the automobile and house- hold industry is described.
The invention relates to an improved process for providing purified styrenic monomers, such as styrene, from styrene-containing polymer waste. Styrene-containing waste is depolymerized in a suitable reactor, and the depolymerization products are condensed and separated in a three-step distillation process.
C07C 4/22 - Préparations d'hydrocarbures à partir d'hydrocarbures contenant un plus grand nombre d'atomes de carbone par dépolymérisation en monomère d'origine, p. ex. dépolymérisation du dicyclopentadiène pour obtenir du cyclopentadiène
C07C 7/04 - Purification, séparation ou stabilisation d'hydrocarburesEmploi d'additifs par distillation
C08J 11/12 - Récupération ou traitement des résidus des polymères par coupure des chaînes moléculaires des polymères ou rupture des liaisons de réticulation par voie chimique, p. ex. dévulcanisation uniquement par traitement à la chaleur sèche
C10B 53/07 - Distillation destructive spécialement conçue pour des matières premières solides particulières ou sous forme spéciale de matières polymères synthétiques, p. ex. pneumatiques
