The invention relates to a method for preparing isocyanates by reacting corresponding amines with phosgene. The invention further relates to an apparatus for separating exhaust gas flows from a phosgenation reaction.
The present invention relates to a method for producing composite components with improved interlaminar bonding, the components comprising a carrier, a layer (B) and at least one polyurethane layer that is in direct contact with the layer (B). The invention also relates to composite components with improved interlaminar bonding.
The present invention relates to a method for producing a plastic compound having improved properties from a formulation containing at least two thermoplastic components in a multi-shaft screw machine having screw shafts rotating in the same direction, in parallel and at the same speed, wherein the plastic compound (i) does not comprise an additive which is flowable at 23°C or (ii) comprises precisely one additive which is flowable at 23°C, or (iii) comprises at least two additives which are flowable at 23°C. The present invention relates in particular to the production of a plastic compound from a formulation containing at least two thermoplastic components, at least one of which is a polycarbonate. More particularly, the screw machine is a twin-screw extruder having screw shafts rotating in the same direction, in parallel and at the same speed.
The present invention relates to a particular process for producing a hydroxyl-group terminated polyesterol via a two-step polycondensation reaction, to the polyesterol obtained by way of this process, and to the use of these polyesterols for producing polyurethanes.
The present disclosure is directed to thermoplastic compositions on the basis of aromatic polycarbonate having a high comparative tracking index, good flame retardancy and a high heat deflection temperature. The compositions contain a combination of polyethylene, phosphorus-containing flame retardant and fluorine-containing anti-dripping agent. A molding including a region made from the thermoplastic compositions is also disclosed.
12345122 is different from hydrogen; and E) optionally, at least one further polymer additive is different from components A to D. The invention also relates to the molding compound obtained from the composition, to moldings produced from the composition or the molding compound and to the use of specific carboxylic acids for reducing the free bisphenol A content in molding compounds and moldings that contain polycarbonate and/or polyester carbonate containing structural units derived from bisphenol A and at least one inorganic filler.
The present invention relates to a method for producing soft polyurethane foams, which have in particular a low compression hardness and/or a low compression set value (DVR), using aliphatic oligomeric polyisocyanates and monohydroxy-functional compounds, and the use of aliphatic oligomeric polyisocyanates in combination with monohydroxy-functional compounds in order to reduce the compression hardness and/or the compression set value (DVR) of soft polyurethane foams. The invention also relates to a soft polyurethane foam, that is preferably flexible, which is produced or can be produced by the aforementioned method and has a low compression hardness and/or a low compression set value (DVR), as well as to the use thereof, for example, for the production of body-supporting elements such as upholstery, mattresses, furniture, automobile seats, and motorbike seats.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The invention relates to a graft copolymer of the general structure B-(A)nm, consisting of blocks of the two polymers A and B, which have different chemical compositions. One of the polymers is a polycondensation polymer, selected from the group consisting of polycarbonates, polyester carbonates, polyesters, and polyamides, and the other polymer is a polymerisate of at least one vinyl monomer. The invention is characterized in that (i) the average molecular weight of the block of polymer B Mn(B) equals at least 13 kg/mol, determined by a combination of gel permeation chromatography and NMR spectroscopy, (ii) the number of side chains in the graft copolymer ns equals at least 3 and maximally 15, determined by NMR spectroscopy, (iii) the average molecular weight of the block of polymer A Mn(A) equals at least 1.5 kg/mol and maximally 15 kg/mol, determined by a combination of gel permeation chromatography and NMR spectroscopy, and (iv) ns multipled by Mn(A) equals at least 13 kg/mol. The invention also relates to the use of the aforementioned graft copolymers in order to reduce the phase surface tension in mixtures containing the polymers A and B, to compositions containing the graft copolymers and the polymers A and B, and to molded bodies containing said compositions.
C08G 81/02 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
The present invention relates to a process for producing, by way of melt transesterification, a polyester carbonate containing at least one 1,4:3,6-dianhydrohexitol, the process comprising a defined temporal sequence of reactions. The obtained polyester carbonates are of good color and have high molecular weights. The invention further relates to a polyester carbonate which can be obtained using the process of the invention as well as to a molding containing the polyester carbonate according to the invention.
The invention relates to a copoly(ester) carbonate of defined units (A), (B) and (C) with defined amount proportions, wherein said structure and amount ratios cause the copoly(ester) carbonate to have excellent stability in aqueous media and also against other chemicals such as rapeseed oil, lipid solution or organic solvents. The present invention also relates to a composition containing the copoly(ester) carbonate according to the invention, a moulding containing the copoly(ester) carbonate according to the invention, and to a method for producing the copoly(ester) carbonate according to the invention.
To increase a comfort and a flexibility, an ostomy pouch accessory for usage with at least one ostomy pouch device is proposed, comprising at least one sensor element for a detection of a leakage of the ostomy pouch device in at least one application state, also comprising at least one adhesive element for a detachable fixation of the ostomy pouch accessory in the application state.
The invention relates to a multi-layer structure (MA) comprising: (S1) at least one first outer layer (S1) containing a polymer (P1) having a Vicat softening temperature ≥149° C., preferably ≥160° C., further preferably ≥170° C., more preferably ≥180° C., determined according to ISO 306:2004 (50N; 50° h); (S2) at least one further polymer layer (S2) containing a polymer (P2) having a Vicat softening temperature <149° C., preferably ≤140° C., more preferably ≤130° C. determined according to ISO 306:2004 (50N; 50°/h), preferably in a range from 120 to 148° C.; (S3) at least one core layer (S3); (S4) at least one further polymer layer (S4) containing a polymer (P2) having a Vicat softening temperature <149° C., preferably ≤140° C., more preferably ≤130° C., determined according to ISO 306:2004 (50N; 50° h), preferably in a range of 120 to 148° C.; (S5) at least one second outer layer (S5) containing a polymer (P1) having a Vicat softening temperature ≥149° C., preferably ≥160° C., further preferably ≥170° C., more preferably ≥180° C., determined according to ISO 306:2004 (50N; 50°/h). The invention also relates to a method for manufacturing such a multi-layer structure and to a security document containing same.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 7/02 - Physical, chemical or physicochemical properties
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
13.
SELF-EXTINGUISHING AND INTUMESCENT FLAME RETARDANT POLYURETHANE ELASTOMER COMPOSITIONS
The present invention relates to an elastomeric polyurethane comprising at least a first flame retardant in an amount of ≥5% to ≤9% by weight based on the total weight of the elastomeric polyurethane and at least one mineral filler in an amount of ≥3% to ≤5% by weight based on the total weight of the elastomeric polyurethane, wherein the at least a first flame retardant is at least one phosphorous comprising polyol, wherein the at least one mineral filler is selected from the group consisting of carbonates, sulfates, silicates, mixtures and hydrated modifications thereof and wherein the total amount of the first flame retardant and the mineral filler is in the range of ≥10% to ≤14% by weight, based on the total weight of the elastomeric polyurethane, to a process for the preparation of said elastomeric polyurethane, to the use of these elastomeric polyurethane in offshore applications, mine and quarries applications, pulp and paper applications, shoe soles applications, handling applications, military application, transport application, railway and industrial rolls, industrials tires, electric encapsulation, wheels, rollers, doctor blades, hydro cyclones, sieves, sport tracks, insulating panels, acoustic insulations, wind blades or bumpers, and to offshore applications, mine and quarries applications, pulp and paper applications, shoe soles applications, handling applications, military application, transport application, railway and industrial rolls, industrials tires, electric encapsulation, wheels, rollers, doctor blades, hydro cyclones, sieves, sport tracks, insulating panels, acoustic insulations, wind blades or bumpers comprising such a polyurethane.
The invention relates to an improved process for producing double metal cyanide (DMC) catalysts for producing polyoxyalkylene polyols, preferably polyether polyols and/or polyether carbonate polyols. The invention also relates to DMC catalysts which are obtainable by means of this process, and to the use of the catalysts according to the invention for producing polyoxyalkylene polyols.
C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
15.
Flame-Retardant Composition Comprising 0.040% to 0.095% by Weight of a Flame Retardant
The present invention relates to compositions containing linear polycarbonate, branched polycarbonate, a reinforcing fibre and a small amount of salts of sulfonic acid, sulfonamide or sulfonimide derivatives. The invention likewise relates to the use of branched polycarbonate in a polycarbonate composition for achieving a classification according to UL94 of V-0 at a layer thickness of 2.00 mm.
The present invention relates to a reactor (1000) configured to nitrate a stoichiometric excess of an aromatic compound (1) with nitric acid (2) in the presence of sulfuric acid (3) in a continuous process under adiabatic conditions, the reactor (1000) comprising a plurality of static dispersion elements (310) arranged in a spaced-apart relationship to form a plurality of reaction chambers (400) inside the reactor (1000), wherein at least one of the reaction chambers (400) has a largest cross-sectional area (420') that is larger than that of the in flow direction preceding reaction chamber (400), and at least two of the reaction chambers (400) have an internal volume that is larger than that of the in flow direction preceding reaction chamber (400). The present invention also relates to a production plant for producing a nitrated aromatic compound, comprising the reactor (1000) according to the invention, and to a continuous process for producing a nitrated aromatic compound, comprising adiabatically reacting an aromatic compound (1) with nitric acid (2) in the presence of sulfuric acid (3) in the reactor of the invention (1000) or in the production plant of the invention.
The present invention relates to radiation-curable polyurethane dispersions having a particularly high double-bond density. These polyurethane dispersions can be used independently as coating agents, or especially advantageously added to conventional polyacrylate dispersions or to radiation-curing polyurethane dispersions in order to improve the properties in use thereof.
The present invention is directed to the use of a waterborne adhesive composition for the adhesive bonding of one or more substrates after at least partial coagulation of the waterborne adhesive composition and while the at least partially coagulated waterborne adhesive composition is still in a wet state, wherein the waterborne adhesive composition comprises a waterborne dispersion comprising dispersed polymer particles comprising both (i) a polyurethane and (ii) a vinyl polymer, said dispersed particles comprising the polyurethane and the vinyl polymer in a weight ratio of the polyurethane to the vinyl polymer in the range from 25:75 to 90:10, and the polyurethane-vinyl polymer comprises a crystalline phase having a melting temperature in the range from 30 to 80 °C and an enthalpy of fusion of at least 10 J/g, whereby the melting temperature and the enthalpy of fusion are determined by differential scanning calorimetry according to DIN EN ISO 11357-1:2017 (2017-02) at a heating rate of 20 K/min, and wherein the adhesive bonding is effected at a temperature below the melting temperature of the polyurethane-vinyl polymer.
C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
C09J 151/08 - Adhesives based on graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsAdhesives based on derivatives of such polymers grafted on to macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
The present invention is directed to a waterborne dispersion for use in an adhesive composition, wherein the dispersion comprises dispersed polymer particles comprising both (i) a polyurethane and (ii) a vinyl polymer, wherein said dispersed particles comprising the polyurethane and the vinyl polymer in a weight ratio of the polyurethane to the vinyl polymer higher than 1, and the polyurethane-vinyl polymer comprises a crystalline phase having a melting temperature in the range from 30 to 80 °C and an enthalpy of fusion of at least 15 J/g, whereby the melting temperature and the enthalpy of fusion are determined by differential scanning calorimetry according to DIN EN ISO 11357-1:2017 (2017-02) at a heating rate of 20 K/min.
C08G 18/70 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
C08G 18/72 - Polyisocyanates or polyisothiocyanates
C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
The present invention relates to a process for diisocyanate distillation, comprising steps A) providing a distillation system, B) distilling, in the distillation system, a composition essentially containing pentamethylene diisocyanate, characterized in that after step B), step C) is carried out, consisting in distilling, in the distillation system, a composition essentially containing a diisocyanate other than pentamethylene diisocyanate, so as to obtain a distillate.
The present invention relates to a method for providing a granulate suitable for combustion from the residue of distilling toluylene diisocyanate obtained by gas-phase phosgenation, to a granulate suitable for combustion obtained using the method according to the invention, and to the use of the granulate according to the invention as a fuel, in particular also as a substitute fuel for fuels such as coal, crude oil or natural gas, in a combustion plant.
C07C 265/14 - Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
22.
Method for Producing Volume Reflection Holograms With Substrate-Guided Reconstruction Beams and/or Substrate-Guided Diffracted Beams in a Single-Beam Set-Up
The disclose relates to a method for producing volume reflection holograms with substrate-guided reconstruction beams and/or substrate-guided diffracted beams in a single-beam set-up, including the steps of (i) providing at least one laser beam source producing a recording beam having a first wave vector (ii) providing a holographic recording medium on a transparent substrate, the substrate having a first flat side facing the at least one laser beam source and a second flat side facing away from the at least one laser beam source, where the holographic recording medium is arranged on the first flat side or on the second flat side, (iii) providing a reflector arrangement arranged on the second flat side of the substrate.
G03H 1/02 - Holographic processes or apparatus using light, infrared, or ultraviolet waves for obtaining holograms or for obtaining an image from themDetails peculiar thereto Details
G03H 1/04 - Processes or apparatus for producing holograms
23.
INTEGRATED BYPASS COOLING ON TURBO COMPRESSORS WITH TWO OR MORE PROCESS STAGES
By means of a device for compressing gas of a gas stream, comprising: at least one supply line (2) for a gas stream containing at least one gaseous compound to a compressor unit (4), and at least one discharge line (3) for discharging the compressed gas stream from said compressor unit; said compressor unit (4), comprising at least one first compressor stage (1) and a final compressor stage (F), wherein the supply line (2) is fluidically connected to the gas inlet of the first compressor stage (1) and the gas outlet of the first compressor stage (1) is fluidically connected to the gas inlet of a last cooling device (WA00F), and the gas outlet of the last cooling device (WA00F) is fluidically connected to the gas inlet of the final compressor stage (F), and the discharge line (3) is fluidically connected to the gas outlet of the final compressor stage (F); at least one first bypass (6a), which connects the discharge line (3) to the fluid connection located between the last cooling device (WA00F) and the compressor stage immediately before it, wherein by means of a first through-flow regulator (5a) which is located in the first bypass (6a) and comprises at least one valve (10), the gas amount conducted in the bypass gas stream can be controlled and as a result the through-flow of the gas stream through the final compressor stage (F) can be regulated; at least one second bypass (6b) provided with a second through-flow regulator (5b), wherein said bypass connects the fluid connection located between the last cooling device (WA00F) and the final compressor stage (F) to the supply line (2), and by means of a corresponding method that can be carried out using this device, the compressor stall of the compressor unit (4) can be better coordinated to the individual compressor stages and condensation of the returned, compressed gas stream can be avoided. The finally compressed gas stream produced by the method provides a compressed, hot gas that can be used to integrate heat into process steps following compression.
The present invention relates to the production of an isocyanate by reacting a primary amine with phosgene by way of a gas phase reaction in several gas phase reaction arrangements connected in parallel. Excess phosgene not reacted in the gas phase reaction is returned, as a return flow, to a phosgene gas generation device to form a phosgene gas stream and a state parameter of the formed phosgene gas steam is set by means of a setting parameter of the return flow. This concept enables stable reaction conditions of the gas phase reaction, in particular a stable stoichiometric phosgene excess in the gas phase reaction arrangements, to be ensured.
The disclosure relates to a polyol composition, a corresponding polyurethane reaction system and a polyurethane foam prepared therefrom. The polyol composition includes: B1) an EO- and/or PO-based polyether polyol having a functionality of 2-6 and a weight-average molecular weight of 3000-12000 g/mol; B2) a PO- and/or EO-terminated polyarea polyol having a functionality of 2-4, and a weight-average molecular weight of 3000-8000 g/mol; optionally B3) a polyester polyol having a functionality of 2-4, and a weight-average molecular weight of 1000-1800 g/mol; and B4) at least one β-dicarbonyl compound.
The invention relates to a method for pyrolysis of polycarbonate-containing material in order to recover raw materials. The method comprises: (a) introducing material intended for the pyrolysis, at least comprising a polycarbonate-containing compound and an entire amount of phosphorous, organic compound, into a reactor, the entire amount relative to the entire weight of the material intended for pyrolysis having a ratio of at least 0.01 wt. % phosphor with a formal oxidation number of +5; (b) decomposing, at a temperature of 300° C. to 700° C., at least the material intended for pyrolysis introduced into the reactor in step (a) and obtaining a product that is present in the gaseous phase as the pyrolysate and of pyrolysis residues that are present in a non-gaseous phase; (c) cooling the removed pyrolysate to a temperature of less than 300° C. while obtaining a pyrolysis product, selected from pyrolysis condensate, pyrolysis sublimate or a mixture thereof.
C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
C10B 57/06 - Other carbonising or coking processesFeatures of destructive distillation processes in general using charges of special composition containing additives
C10B 57/14 - Features of low-temperature carbonising processes
27.
METHOD FOR PRODUCING A RECYCLABLE MONO-MATERIAL MULTI-LAYER SYSTEM
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
The invention is related to a process, preferably a continuous process, for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound with a bisepoxide compound in the presence of a catalyst in a reactor; wherein the diisocyanate compound and the bisepoxide compound are continuously and/or step-wise added preferably continuously added to the reactor and the polyoxazolidinone is continuously and/or step-wise, preferably continuously removed from the reactor.
The present invention relates to the use of specific variants of 3-deoxyarabinoheptulosanate 7-phosphate synthase for producing ortho-aminobenzoic acid by means of microbial fermentation and microorganisms suitable for this purpose.
The invention relates to a layer construction comprising at least one coating composition, which is partially or completely hardened, for a pigmented lacquer (Bp) and at least one coating composition, which is applied thereon, for a clear lacquer (BK), wherein the coating composition Bp contains at least one polyaspartic acid-containing component, at least one silane-functional polyisocyanate, and at least one pigment, and the coating composition BK likewise contains at least one polyaspartic acid-containing component and at least one polyisocyanate. The invention also relates to a layer system comprising a substrate, at least one coating composition Bp, which is applied onto at least one section of the substrate and is partly or completely cured, and at least one coating composition BK, which is applied thereon. The invention also relates to a method for producing a cured layer construction on a preferably metal substrate and to a layer system comprising a preferably metal substrate and a layer construction which can be obtained according to the aforementioned production method.
The invention relates to novel urethanases for the enzymatic degradation of polyurethanes and to an enzymatic process for the complete degradation of polyurethanes in defined monomers.
The invention relates to a method for cleaving polyurethane products, having the steps of (A) providing a polyurethane product which is based on isocyanate components and a polyol component; (B) reacting the polyurethane product with a monofunctional araliphatic alcohol in the presence of an alcoholysis catalyst, thereby obtaining a product mixture containing a liquid polyol phase and a solid carbamate of an isocyanate of the isocyanate component and the monofunctional araliphatic alcohol; and (C) separating the carbamate from the product mixture, thereby leaving the liquid polyol phase.
C12P 13/00 - Preparation of nitrogen-containing organic compounds
C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
C12N 9/80 - Hydrolases (3.) acting on carbon to nitrogen bonds other than peptide bonds (3.5) acting on amide bonds in linear amides
The present invention relates to a process for recovering aminobenzoic acid from an aqueous mother liquor which is produced on crystallization of aminobenzoic acid. The process comprises a step (A) of fermenting a suitable fermentable raw material in the presence of microorganisms to form aminobenzoate anions and/or aminobenzoic acid; a step (B) of crystallising aminobenzoic acid at a pH of 3.0 to 4.7, wherein this crystallisation can be carried out during and/or after the fermentation; a step (C) of extracting the aqueous mother liquor of the crystallisation using an alkanol with 8 to 12 carbon atoms to obtain a first alcoholic phase containing aminobenzoic acid and a first aqueous phase; a step (D) of back-extracting aminobenzoic acid from the first alcoholic phase using an aqueous base solution or acid solution to obtain a second aqueous phase containing anions and cations of the aminobenzoic acid and a second alcoholic phase; and a step (E) of crystallising aminobenzoic acid from the second aqueous phase by feeding the latter back into the crystallisation of step (B) or in a separate crystallisation.
C07C 227/16 - Preparation of compounds containing amino and carboxyl groups bound to the same carbon skeleton from compounds containing already amino and carboxyl groups or derivatives thereof by reactions not involving the amino or carboxyl groups
34.
PROCESS FOR RECOVERY OF RUBBER-MODIFIED VINYL(CO)POLYMER
The invention relates to a process for recovery of rubber-modified vinyl(co)polymer from a polycarbonate resin or an optionally shredded molded part made thereof and the use of the recovered rubber-modified vinyl(co)polymer for the production of molded parts as well as blend partner in polycarbonate blends. Further optional aspects are the recovery of aromatic and/or aliphatic diol and the use of this diol for the production of polycarbonates.
C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
C08J 11/06 - Recovery or working-up of waste materials of polymers without chemical reactions
C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
C08L 51/00 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers
35.
POLYURETHANE ELASTOMER WITH IMPROVED HYDROLYSIS RESISTANCE
The present invention relates to polyurethane elastomers, obtainable or obtained from the reaction of at least one NCO-terminated prepolymer (A), at least one polyol mixture (B), obtainable or obtained by mixing at least one polyester (B1) having a number average molecular weight (Mn) in the range of 900 g/mol to 3000 g/mol and a hydroxyl functionality of ≥1.7 and ≤4, wherein Mn has been determined by gel permeation chromatography and (B2) at least one carbodiimide (B2), at least one chain extender (C), wherein the polyol mixture (B) was stored for at least 4 weeks at 23° C. after mixing of (B1) and (B2), a process for the manufacturing of those polyurethane elastomers, a kit-of-parts and to the use of those polyurethane elastomers.
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
The present invention provides a potting device for a battery module, which is capable of simultaneous multi-station pouring, ensures that the potting material is completely poured before foaming begins, greatly improves the potting efficiency, and is applicable to various battery module designs, has low cost for component replacement, is easy to clean, and resulting in the potting material having a consistent height and a good homogeneity, and free of defects such as bubbles and blisters. The present invention also provides a method for potting a battery module and a battery module obtained therefrom, which is particularly suitable for electric vehicles as their power source.
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
B05C 5/02 - Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work from an outlet device in contact, or almost in contact, with the work
37.
PROCESS FOR PREPARING POLYOXYALKYLENE POLYESTER POLYOLS
The invention relates to a process for preparing polyoxyalkylene polyester polyols with calculated OH numbers of 320 mg (KOH)/g to 530 mg (KOH)/g by reacting a starter compound, which contains alcoholic hydroxy groups and/or amine protons, and a fatty acid ester containing an alkylene oxide. The invention further relates to polyoxyalkylene polyester polyols resulting from the method and to a preparation method for polyurethanes by reaction of the polyoxyalkylene polyester polyols according to the invention with polyisocyanates.
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemicals used in industry; unprocessed plastics;
unprocessed synthetic resins; adhesives used in industry. Dyes, lacquers, colorants, pigments, printing ink,
thermographic ink, invisible ink, conductive inks, security
inks, metallic ink; metameric inks, specialty coatings for
the protection and enhancement of printed plastic and paper
surfaces; raw natural resins; sheet metals in foil and
powder form for painters; surface coating agents in the form
of paints and lacquers; primers; additives for paints. Coded identification cards; biometric passports; plastic
cards [encoded]; biometric identity cards; encoded key
cards; cards (magnetic or encoded-); magnetic payment cards;
magnetic badges; electronic chip cards; holographic films;
optical testing devices for quality assurance of printed
films; security devices and security features used in
banknotes and other security documents; optically variable
devices; diffractive security devices, including diffraction
gratings, holograms and diffractive optical elements;
currency authentication apparatus and equipment; detectors
and sensing apparatus; apparatus and equipment for detecting
security documents, security films; security devices;
optical detection apparatus; magnetic encoded cards and
films; smart cards; electronic identification cards and
magnetic identification cards; encoded charge cards; encoded
bank cards; credit cards; debit cards; payment cards; card
readers; computer hardware and software for use in currency
authentication apparatus and equipment; computer hardware
and software for producing diffractive security devices;
computer hardware and software for implementing encryption,
authentication software and other security features in
relation to encoded cards and films. Adhesive tapes, strips, bands and films; adhesive bands
other than stationery and not for household purposes;
adhesive tapes for industrial purposes; synthetic resins
(semi-finished products); recycled plastic materials for use
in manufacture; reprocessed and recycled plastics and
plastics materials; synthetic resins (semi-processed);
printable plastic films for various applications, including
banknote production; plastic materials for the production of
durable printable banknotes; films of plastics material for
use as currency or as security documents or devices,
including laminated polymer films; films of plastics
materials; laminated polymer films for use as currency or as
security documents or devices; press-ready laminated polymer
films for the printing of banknotes and other security
documents; encrypted or encoded polymeric films and
substrates; films of plastic materials, combined or not with
paper from which banknotes and other security documents or
devices are formed.
39.
METHOD OF RECOVERING RAW MATERIALS FROM POLYURETHANE PRODUCTS
The present invention relates to a method for recovering at least one raw material from a polyurethane product, comprising steps (A) providing a polyurethane product based on an isocyanate component and a polyol component, the isocyanate component comprising only isocyanates for which the corresponding amines have a boiling point at 1013 mbar(abs.) of at most 410° C.; (B) performing chemolysis of the polyurethane product with an alcohol and water; (C) processing the product of the chemolysis, comprising (C.I) extraction with an organic solvent, the boiling point of which at 1013 mbar(abs.) is in the range of 40° C. to 120° C., at a temperature in the range of 10° C. to 60° C., followed by (C.II) phase separation into a first product phase and into a second product phase; and (D) processing the first product phase to obtain the polyol, comprising (D.I.) separation of organic solvent by distillation and/or stripping, and (D.II) separation of amine dissolved in the first product phase by distillation so as to obtain the polyol.
C08J 11/24 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds containing hydroxyl groups
40.
A SOLVENT-FREE POLYURETHANE DISPERSION BASED ON POLYTRIMETHYLENE ETHER GLYCOL
The present invention relates to polyurethanes and polyurethane dispersions based on polyethers obtainable from renewable sources, particularly biomass.
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
D06N 3/14 - Artificial leather, oilcloth, or like material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds with polyurethanes
01 - Chemical and biological materials for industrial, scientific and agricultural use
02 - Paints, varnishes, lacquers
09 - Scientific and electric apparatus and instruments
17 - Rubber and plastic; packing and insulating materials
Goods & Services
Chemicals used in industry; unprocessed plastics;
unprocessed synthetic resins; adhesives used in industry. Dyes, lacquers, colorants, pigments, printing ink,
thermographic ink, invisible ink, conductive inks, security
inks, metallic ink; metameric inks, specialty coatings for
the protection and enhancement of printed plastic and paper
surfaces; raw natural resins; sheet metals in foil and
powder form for painters; surface coating agents in the form
of paints and lacquers; primers; additives for paints. Coded identification cards; biometric passports; plastic
cards [encoded]; biometric identity cards; encoded key
cards; cards (magnetic or encoded-); magnetic payment cards;
magnetic badges; electronic chip cards; holographic films;
optical testing devices for quality assurance of printed
films; security devices and security features used in
banknotes and other security documents; optically variable
devices; diffractive security devices, including diffraction
gratings, holograms and diffractive optical elements;
currency authentication apparatus and equipment; detectors
and sensing apparatus; apparatus and equipment for detecting
security documents, security films; security devices;
optical detection apparatus; magnetic encoded cards and
films; smart cards; electronic identification cards and
magnetic identification cards; encoded charge cards; encoded
bank cards; credit cards; debit cards; payment cards; card
readers; computer hardware and software for use in currency
authentication apparatus and equipment; computer hardware
and software for producing diffractive security devices;
computer hardware and software for implementing encryption,
authentication software and other security features in
relation to encoded cards and films. Adhesive tapes, strips, bands and films; adhesive bands
other than stationery and not for household purposes;
adhesive tapes for industrial purposes; synthetic resins
(semi-finished products); recycled plastic materials for use
in manufacture; reprocessed and recycled plastics and
plastics materials; synthetic resins (semi-processed);
printable plastic films for various applications, including
banknote production; plastic materials for the production of
durable printable banknotes; films of plastics material for
use as currency or as security documents or devices,
including laminated polymer films; films of plastics
materials; laminated polymer films for use as currency or as
security documents or devices; press-ready laminated polymer
films for the printing of banknotes and other security
documents; encrypted or encoded polymeric films and
substrates; films of plastic materials, combined or not with
paper from which banknotes and other security documents or
devices are formed.
efefef is defined in accordance with DIN EN ISO 11357. The polymer starting material has a water content of ≥ 3 weight-% to ≤ 35 weight-% based on the total weight of the polymer starting material and the temperature of the extruded polymer material is ≥ 30 °C to ≤ 100 °C.
C08J 3/00 - Processes of treating or compounding macromolecular substances
C08J 9/00 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof
C08L 3/00 - Compositions of starch, amylose or amylopectin or of their derivatives or degradation products
B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
B29B 9/06 - Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
The invention relates to a method for preparing isocyanurate-group-containing polyisocyanates P by trimerising • A) at least one organic di- or polyisocyanate with isocyanate groups bound aliphatically, cycloaliphatically and/or araliphatically independently of one another in the presence of • B) at least one trimerisation catalyst selected from the group consisting of quaternary tetraalkylammonium hydroxides, quaternary trialkylarylammonium hydroxides and hydroxyalkyl-substituted quaternary ammonium hydroxides of the choline type and • C) at least one alcohol as solvent.
C08G 18/09 - Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
C08G 18/79 - Nitrogen characterised by the polyisocyanates used, these having groups formed by oligomerisation of isocyanates or isothiocyanates
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The present invention relates to a polycarbonate composition comprising the following components, relative to the total weight of the composition， A) 90-99 wt.% of an aromatic polycarbonate, B) 0.2-0.8 wt.% of a sulfonated polyester, C) 0.5-3.5 wt.% of a core-shell impact modifier selected from the group consisting of methyl methacrylate-butadiene-styrene (MBS), acrylonitrile-butadiene-styrene (ABS), silicone-acrylate rubber based impact modifiers and combinations thereof, and D) 0.2-0.5 wt.% of polytetrafluoroethylene. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has a good combination of flame retardancy and impact strength.
C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
C08L 27/18 - Homopolymers or copolymers of tetrafluoroethene
C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers
A method for pyrolysis of polycarbonate-containing material in order to recover raw materials is provided. The method comprises at least the following steps: (a) introducing material intended for the pyrolysis, at least comprising material that contains a mixture of a polycarbonate-containing compound and a polystyrene-containing compound, into a reactor; (b) decomposing, at a temperature of 300° C. to 700° C., at least the material intended for pyrolysis introduced into the reactor in step (a) and obtaining a product that is present in the gaseous phase as the pyrolysate and of pyrolysis residues that are present in a non-gaseous phase; and (c) cooling the removed pyrolysate to a temperature of less than 300° C. while obtaining a pyrolysis product, selected from pyrolysis condensate, pyrolysis sublimate or a mixture thereof.
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
C07C 4/22 - Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by depolymerisation to the original monomer, e.g. dicyclopentadiene to cyclopentadiene
C07C 29/48 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by oxidation reactions with formation of hydroxy groups
C07C 37/84 - SeparationPurificationStabilisationUse of additives by physical treatment by crystallisation
C07C 51/43 - SeparationPurificationStabilisationUse of additives by change of the physical state, e.g. crystallisation
C10B 53/07 - Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form of synthetic polymeric materials, e.g. tyres
C10B 57/14 - Features of low-temperature carbonising processes
The invention relates to a method for preparing a polyoxyalkylene polyol comprising attaching an alkylene oxide (A) to an H-functional starter substance (B) in the presence of a basic catalyst (C) with the formation of an intermediate (D), followed by vacuum-treating the intermediate (D) at pressures of 1 mbara to 500 mbara with the formation of an intermediate (E). Then, an alkylene oxide (F) is attached to this intermediate (E) with the formation of an alkaline polyoxyalkylene polyol (H) and then water is added with the formation of a mixture (J) comprising a first phase (J-1) containing the polyoxyalkylene polyol and a second aqueous phase (J-2). Then, the second aqueous phase (J- 2) is separated from the first phase (J-1) containing the polyoxyalkylene polyol via gravitation. The addition of the alkylene oxide (A) ends before the vacuum treatment and the addition of the alkylene oxide (F) is not started until after the vacuum treatment has been completed.
C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
The present invention relates to a polyisocyanate composition comprising at least one bridging cistetrahydrofuran-2,5-diyl-dimethylene unit and at least one isocyanurate, iminooxadiazinedione, allophanate, urethane, urea, uretdione, oxadiazinetrione, carbodiimide, thiourethane, thioallophanate and/or biuret structure and/or comprising at least one bridging trans-tetrahydrofuran-2,5-diyl)-dimethylene unit and at least one isocyanurate, iminooxadiazinedione, allophanate, urethane, urea, uretdione, oxadiazinetrione, carbodiimide, thiourethane, thioallophanate and/or biuret structure.
A process for producing a thermoplastic polyoxazolidinone comprising copolymerizing a diisocyanate compound with a bisepoxide compound in the presence of a catalyst optionally in a solvent, wherein one or more specific bisepoxide compounds are used. The invention is also related to the resulting thermoplastic polyoxazolidinone.
The invention relates to a method for producing aliphatic diisocyanates by reacting the corresponding aliphatic diamines with phosgene in the gas phase.
The invention is related to a process for producing a hydroxyl-group terminated oxazolidinone composition comprising the reaction of a polyisocyanate compound with two or more isocyanate groups with glycerol carbonate and optionally in a solvent, wherein the molar ratio of the compound (B) to the isocyanate groups of the polyisocyanate compound (A) is at least 1.5:1, and wherein the process comprises a step in which a catalyst (C) is present. The invention is also related to the resulting hydroxyl-group terminated oxazolidinone and a process for producing a hydroxyl-group terminated oxazolidinone by removal of a solvent and/or unreacted glycerol carbonate.
The present application provides a process for producing an isocyanate-terminated prepolymer comprising the reaction of a polyisocyanate compound A) with an isocyanate-reactive compound B) and optionally a subsequent step to reduce residual monomer content, wherein - the polyisocyanate compound A) comprises at least 30 wt.-%, based on the weight of the polyisocyanate compound A), penthamethylene diisocyanate, preferably at least 50 wt.-%, more preferably at least 70 wt.-%, and - the isocyanate-reactive compound B) comprises at least 80 wt.-%, based on the weight of isocyanate-reactive compounds B), of (I) poly(1,3-propanediol) with a number average molar mass in the range of from 100 g/mol to 1300 g/mol, or (II) poly(ε-caprolactone) with an OH-functionality of 2 and a number average molar mass in the range of from 160 g/mol to 800 g/mol, or (III) any combination of (I) and (II).
USE OF POLYURETHANE ELASTOMERS BASED ON OR USE OF KIT-OF-PARTS COMPRISING MDI-POLYADIPATE PREPOLYMERS AND POLYAMINE CHAIN-EXTENDERS IN PULP AND PAPER APPLICATIONS, PREFERABLY IN THE MANUFACTURE OF DIE CUTTING PADS, ANVIL COVERS, ROLLERS AND ZERO CRUSH WHEELS
The present invention relates to the use of polyurethane elastomers based on and to the use of kit-of- parts comprising MDI-polyadipate prepolymers and polyamine chain-extenders in pulp and paper applications, especially in the manufacture of die cutting pads, anvil covers, zero crush wheels and rollers, wherein the resulting products exhibit good dynamic performances, especially in terms of elongation and tear resistance.
The invention relates to a method for cleaving urethanes, in particular polyurethanes, by means of chemolysis (alcoholysis, hydrolysis, or hydroalcoholysis) in the presence of a catalyst. The chemolysis is characterized in that a salt of an oxyacid of an element of the fifth, fourteenth, or fifteenth group of the periodic table of elements or a mixture of two or more such salts is used as the catalyst, the pKb value of the anion of said salt of the oxyacid ranging from 0.10 to 6.00, preferably 0.25 to 5.00, particularly 0.50 to 4.50, wherein the catalyst does not comprise carbonate when the chemolysis is carried out as an alcoholysis (Ia), and the catalyst does not contain carbonate, orthophosphate, or metaphosphate when the chemolysis is carried out as a hydroalcoholysis.
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
C07C 29/09 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by hydrolysis
C07C 29/128 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by alcoholysis
C07C 29/74 - SeparationPurificationStabilisationUse of additives
C07C 269/04 - Preparation of derivatives of carbamic acid, i.e. compounds containing any of the groups the nitrogen atom not being part of nitro or nitroso groups from amines with formation of carbamate groups
C07C 269/08 - SeparationPurificationStabilisationUse of additives
The present invention relates to a resin reaction system containing a special inhibitor pack and its use for producing urethane hybrid resins, to a method for producing urethane hybrid resins using the inhibitor pack, and to urethane hybrid resins that were produced using the inhibitor pack.
The present application relates to a flame retardant polycarbonate composition and shaped articles made therefrom. The polycarbonate composition comprises the following components: an optional virgin aromatic polycarbonate, a post-consumer recycled (PCR) aromatic polycarbonate, a flame retardant, two impact modifiers, a UV absorber and an anti-dripping agent. The shaped article made from the polycarbonate composition according to the present invention has a good combination of mechanical properties such as impact strength, flame retardancy, and UV resistance.
The invention relates to a security document S having a first outer side AS1 and a second outer side AS2 opposite the first outer side AS1 comprising at least: A5. a first polymer film A1, A6. optionally a second polymer film A2, A7. optionally at least one further polymer film A3, A8. a printing layer A4, 10, wherein at least the first polymer film A1 comprises a thermoplastic polyurethane TPU having a hardness in a range from 80 Shore A to 95 Shore D, preferably from 85 Shore A to 90 Shore D, particularly preferably from 90 Shore A to 85 Shore D, very particularly preferably from 95 Shore A to 80 Shore D, in an amount in a range from 50% to 100% by weight based on the total weight of the first polymer film A1 and forms at least the outer side AS1 of the security document S and wherein the printing layer A4 covers the surface of the security document S in a range from 1% to 100% based on the total surface area of the surface AS1, and to a process for producing such a security document S and to the use thereof and to the use of a TPU having a Shore hardness in a range from 80 Shore A to 95 Shore D for producing a polymer film A1 which is printable with dyes of the class of offset printing inks, flexographic printing inks, screen printing inks, digital printing inks with a resolution of 20 µm to 500 µm.
The present invention relates to the use of an aqueous dispersion for production of storage-stable and latently reactive adhesives, wherein the aqueous dispersion contains at least the following dispersed components: (A) at least one semicrystalline or crystalline polyurethane polymer containing carboxyl groups which has a melting temperature in the range of 35 to 80°C, an enthalpy of fusion of ≥ 15 J/g and a partial acid number in the range from 0.8 mg KOH/g to 25 mg KOH/g; (B) at least one polycarbodiimide, at least one polyaziridine and/or a mixture thereof, where the at least one polycarbodiimide and the at least one polyaziridine have a glass transition temperature in the range from -150°C to 30°C; (C) optionally at least one further polymer other than the at least one polymer (A); and (D) optionally at least one additive other than components (A), (B) and (C). In addition, a method of bonding at least two substrates or at least two surface regions of a substrate and an adhesive bond.
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The invention relates to an aqueous adhesive formulation in the form of an aqueous dispersion containing at least the following dispersed components: (A) at least one polymer selected from the group consisting of polyurethane polymers, vinyl polymers, polyester polymers and/or mixtures of at least two thereof, the polymer having a partial acid number of < 1.25 mg KOH/g determined in accordance with DIN EN ISO 2114:2000 (2002-06, Method A with an acetone-ethanol solvent mixture); (B) at least one semicrystalline or crystalline polyurethane polymer containing carboxyl groups which has a melting temperature in the range of 35 to 80°C, an enthalpy of fusion of ≥ 15 J/g, each determined by DSC (differential scanning calorimetry) at a heating rate of 20 K/min in accordance with DIN EN ISO 11357-1:2017 (2017-02), and has a partial acid number in the range from 1.25 mg KOH/g to 25 mg KOH/g, determined in accordance with DIN EN ISO 2114:2000 (2002-06, Method A with an acetone-ethanol solvent mixture); (C) at least one polycarbodiimide and/or at least one polyaziridine and/or a mixture thereof; and (D) optionally at least one further polymer other than the at least one polymer (A) and the at least one polyurethane polymer (B). It further relates to a corresponding kit-of-parts, to a process for producing the aqueous adhesive formulation, the uses of the adhesive formulation, and to articles that have been produced using the adhesive formulation.
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The present invention relates to the use of esterified ethanolamines as catalysts for the cross-linking of isocyanate groups which are aliphatically and/or cyclo-aliphatically bonded. The catalysts according to the invention have the particular advantage that they are thermally latent.
The invention relates to a first epoxydation catalyst system comprising a mixture of a metal salt of the metals chromium, manganese, molybdenum, lead and/or bismuth and a hydroxide as well as of a redox-active compound. The invention also relates to an additional second epoxydation catalyst system comprising a mixture of an additional metal salt, iodine and a hydroxide. Furthermore, the invention relates to a process for preparing epoxides comprising the oxidative reaction of an alkene in a reactor in the presence of the first epoxydation catalyst system or the second epoxydation catalyst system.
B01J 27/135 - HalogensCompounds thereof with titanium, zirconium, hafnium, germanium, tin or lead
C07D 301/06 - Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the liquid phase
The present invention relates to a polycarbonate composition including the following components, relative to the total weight of the composition: A) 50-95 wt. % of an aromatic polycarbonate; B) 1-20 wt. % of a phosphorus-containing flame retardant; C) 0.3-0.7 wt. % of an anti-dripping agent; D) 0.1-6 wt. % of a hydrolysis stabilizer; and E) 1.5-9 wt. % of a polysilsesquioxane. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has a good combination of hydrolysis resistance and flame retardance.
The invention relates to processes for preparing a mixture that contains a polyoxyalkylene polyol, preferably a polyether polyol, to the mixtures obtainable by the process and to a mixture that contains a polyoxyalkylene polyol, preferably a polyether polyol and an alkoxylated oxoacid of phosphorus.
C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
63.
Wet Adhesion of Storage-Stable Polychloroprene-Based Spray Adhesives
An aqueous dispersion contains at least polychlorprene, a component selected from the group consisting of dilute silicic acid sol, a modified silica sol and mixtures thereof, a acrylic acid or a copolymer containing acrylic acid ester and optionally further additives. The aqueous dispersion has a pH of 9.7 to 10.8. The disclosure also relates to a method for preparing the aqueous dispersion, to an adhesive composition at least containing the aqueous dispersion, to the use of the dispersion for preparing adhesive compositions, to the use of the dispersion for adhesively bonding foam substrates according to the spray coagulation method, to an adhesive composite containing at least one substrate and/or sheet material adhesively bonded using the aqueous dispersion, and to a method for producing a composite material. At least two joining parts of the composite material are adhesively bonded using the aqueous dispersion.
The present invention relates to an aqueous polyurethane-urea dispersion including polyurethane-urea and a preparation method and use thereof, especially in the field of coating compositions, binders or inks, and a product obtained by coating, bonding, sealing or printing with the aqueous polyurethane-urea dispersion. The polyurethane-urea of the aqueous polyurethane-urea dispersion including polyurethane-urea is obtained by the reaction of a system including the following components: a polyisocyanate, a polycarbonate polyol with a hydroxyl functionality of 1.9-2.1, a polyester polyol with a hydroxyl functionality of 1.9-2.1, an amino-containing compound, a hydroxyl-containing carboxylic acid and a neutralizer, where the weight ratio of the polycarbonate polyol to the polyester polyol is 6:1-20:1. The aqueous polyurethane-urea dispersion of the present invention has small particle size, narrow particle size distribution, good color rendering, hydrolysis resistance and color fastness to rubbing, and can be used as a binder for inkjet inks.
C08G 18/72 - Polyisocyanates or polyisothiocyanates
C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
C08G 18/75 - Polyisocyanates or polyisothiocyanates cyclic cycloaliphatic
C09D 11/102 - Printing inks based on artificial resins containing macromolecular compounds obtained by reactions other than those only involving unsaturated carbon-to-carbon bonds
The invention relates to a method for the production of a thermoplastic polyurethane powder by means of precipitation polymerisation, comprising the steps of: i. providing A) a solvent mixture comprising at least one first aprotic solvent Al) with a relative permittivity of 3 to 20 and at least one second aprotic polar solvent A2) with a relative permittivity of at least 24; B) at least one polyol with a molar mass of between 60 g/mol and 250 g/mol; C) at least one diisocyanate; ii. reacting the polyol B) with the diisocyanate C) in the solvent mixture A) at a temperature of max. 150 °C to form the thermoplastic polyurethane, wherein the thermoplastic polyurethane precipitates as a solid in the solvent mixture A) and forms a dispersion; iii. separating from the solvent mixture; and iv. drying the thermoplastic polyurethane to form the thermoplastic polyurethane powder; wherein the thermoplastic polyurethane powder has a mass average of the molar mass Mw of > 35000 g/mol; an allophanate content of < 0.25 mol% in relation to the total thermoplastic polyurethane powder; and > 25.0 wt% of a particle fraction of < 0.500 mm, in relation to the total thermoplastic polyurethane powder and/or a ratio of z-average of the molar mass Mz to the mass average of the molar mass Mw of < 4.0.
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
C08G 18/73 - Polyisocyanates or polyisothiocyanates acyclic
B29C 64/00 - Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
66.
SCREW ELEMENTS WITH IMPROVED MIXING EFFECT AND IMPROVED HEAT TRANSFER, AND THE USE OF SAME
The invention relates to a pair of three-lead screw elements for a multi-shaft screw machine having screw shafts rotating in the same direction and at the same speed. The two screw elements of the pair of screw elements according to the invention, opposing each other directly adjacently on two directly adjacent screw shafts, are mutually cleaned in a practical manner. The invention also relates to the use of the pair of screw elements according to the invention in a multi-shaft screw machine, to a multi-shaft screw machine equipped with a pair of screw elements according to the invention, and to a method for extruding plastic or viscoelastic compounds using the pair of screw elements according to the invention.
B29C 48/40 - Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws, e.g. twin screw extruders
B29C 48/25 - Component parts, details or accessoriesAuxiliary operations
B29C 48/54 - Screws with additional forward-feeding elements
B29C 48/55 - Screws having reverse-feeding elements
B29C 48/57 - Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
B29C 48/655 - Screws with two or more threads having three or more threads
B29B 7/48 - MixingKneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
67.
METHOD FOR THE PRODUCTION OF A THERMOPLASTIC POLYURETHANE WITH HIGH MOLAR MASS AND LOW ALLOPHANATE CONTENT
The invention relates to a method for the production of a thermoplastic polyurethane comprising the steps of: i. producing an aliphatic hydroxy-terminated prepolymer via precipitation polymerisation by reacting at least one aliphatic polyol with at least one polyisocyanate in an aprotic solvent and then separating the obtained hydroxy-terminated prepolymer, wherein the obtained aliphatic hydroxy-terminated prepolymer has a characteristic value for the reaction of the hydroxy groups of at least 0.850 to max. 0.970, a mass average of the molar mass Mw of < 30000 g/mol and an allophanate content of < 0.1 mol%; ii. reacting the hydroxy-terminated prepolymer obtained in step i. with a polyisocyanate in an extruder via reactive extrusion to form the thermoplastic polyurethane, wherein the thermoplastic polyurethane has a characteristic value for the reaction of hydroxy groups of > 0.980, a mass average of the molar mass Mw of > 45,000 g/mol and an allophanate content of < 0.2 mol%; wherein the characteristic value for the reaction of the hydroxy groups, the mass average of the molar mass Mw and the allophanate content are each determined by the methods set out in the description.
The present invention relates to a process for producing a single-layer polyurethane coated plastic substrate, comprising or consisting of the following steps: a) providing a plastic substrate; b) applying a polyurethane coating system onto the substrate; c) curing the polyurethane coating system to form the single-layer polyurethane coated plastic substrate; wherein the polyurethane coating system comprises or consists of A) at least one polyisocyanate; B) at least one NCO-reactive compound; C) at least one thermally latent catalyst; D) optionally auxiliaries and/or additives.
The invention relates to a method for producing re-expandable foamed polycarbonate beads as well as to the corresponding beads themselves which can be used as propellant-free beads for producing molded parts, even molded parts with complex 3D geometries, in the form of drop-in technology in steam molding machines already used for EPP production at average pressures of 4 to 6 bar and which lead to molded parts with an excellent compact and closed surface structure.
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
B29C 44/44 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in the form of expandable particles or beads
C08G 64/00 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
The invention relates to a method according to claim 1 for the commercial implementation of a pyrolysis, and to pyrolysis devices for the pyrolysis of pyrolysis stock used in this method. The pyrolysis stock contains a polymeric compound having at least one structural polyurethane unit of the formula (I), wherein Q is a hydrocarbon group with 2 to 8 carbon atoms, preferably 3 to 8 carbon atoms, and n represents a number from 2 to 4, most preferably 2, and -* represents a covalent bond to the polymer backbone. The method and the pyrolysis device according to the invention allow, even with higher compounds of pyrolysis stock an amount of pyrolysis product to be obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.
The invention relates to a method according to claim 1 for the commercial implementation of a pyrolysis, and to pyrolysis devices for the pyrolysis of pyrolysis stock used in this method. The pyrolysis stock contains a polymeric compound having at least one structural polyurethane unit of the formula (I), wherein Q is a hydrocarbon group with 2 to 8 carbon atoms, preferably 3 to 8 carbon atoms, and n represents a number from 2 to 4, most preferably 2, and -* represents a covalent bond to the polymer backbone. The method and the pyrolysis device according to the invention allow, even with higher compounds of pyrolysis stock an amount of pyrolysis product to be obtained that contains cleavage products which can be reused for the synthesis of polyurethane-containing material.
C08J 11/12 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by dry-heat treatment only
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
71.
Method for Preparing a Polysiloxane-Polycarbonate Block Copolymer Using at Least One Special Condensation Reactor
A multi-stage process for continuous production of a polysiloxane-polycarbonate block copolymer by polycondensation is disclosed where in a first stage an oligocarbonate and a hydroxyaryl-terminated polysiloxane are provided and in a second stage at least one special condensation reactor is used. A certain amount of a particular co-catalyst is added and this co-catalyst is added upstream of the first special condensation reactor. The polysiloxane-polycarbonate block copolymer produced by the process according to the invention has a high proportion of small polysiloxane domains and features good mechanical properties, in particular tough fracture behaviour in the notched impact test according to ISO 7391/ISO 180A, good processability, for example in injection moulding or in extrusion, and good flowability.
C08G 77/00 - Macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon
C08G 77/16 - Polysiloxanes containing silicon bound to oxygen-containing groups to hydroxy groups
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
The invention describes a method for producing polycarbonate beads using a chain extender. The polycarbonate beads have a low bulk density and are suitable for the production of moulded parts with good surface properties and good mechanical properties.
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
B29C 44/44 - Feeding the material to be shaped into a closed space, i.e. to make articles of definite length in the form of expandable particles or beads
C08G 64/00 - Macromolecular compounds obtained by reactions forming a carbonic ester link in the main chain of the macromolecule
Lagrangian Method for Efficient Computation of First-Order Derivative Properties of Observables of Quantum States Representing Fermions in Quantum Computers
The present disclosure provides methods for computing first-order derivative properties of observables of fermionic systems, such as the derivatives of electronic ground and exited states of molecules and materials with respect to the positions of the nuclei, with the help of a quantum computer. The method has the advantageous property that first-order derivative properties with respect to an arbitrary number of parameters of the fermionic system can be computed with a quantum computational effort that is independent of the number of such parameters. First-order derivatives of additional observables, such as wave function overlaps, multipole moments, and electronic density characteristics with respect to additional derivative perturbations, such as nuclear charges and electromagnetic fields, can be evaluated within the same framework, with additional applications such as computation of non-adiabatic dynamics, (hyper)polarizabilities, electrical conductivities, and various spectroscopies of the molecular or material system in question.
The invention relates to a composition which is reactive to isocyanates, to a method for producing rigid polyurethane (PUR) foams made of the composition which is reactive to isocyanates and an isocyanate, and to the use of the rigid polyurethane foams for thermal insulation.
C08G 18/50 - Polyethers having hetero atoms other than oxygen
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
A hydrophilic polyisocyanate composition includes a polyisocyanate component A) and an emulsifier component B. The polyisocyanate component A) consists of at least one polyisocyanate, including silane and thioallophanate structures, of general formula (I), in which R1, R2 and R3 represent identical or different functional groups and each denote a saturated or unsaturated, linear or branched, aliphatic or cyclo-aliphatic or optionally substituted aromatic or araliphatic functional group having up to 18 carbon atoms, which functional group can optionally also contain up to 3 heteroatoms from the series oxygen, sulfur and nitrogen, X represents a linear or branched organic functional group having at least 2 carbon atoms, Y represents a linear or branched, aliphatic or cycloaliphatic, araliphatic or aromatic functional group having up to 18 carbon atoms, and n represents an integer from 1 to 20, and the emulsifier component B) contains at least one ionic and/or nonionic emulsifier.
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
C08G 18/28 - Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
The invention relates to a method for the removal of water from and transport of at least one aliphatic diamine comprising the following steps: a) providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% of the at least one aliphatic diamine with two —NH2 groups per molecule, each of them bound to a primary or secondary carbon atom, b) removing water at least partially from said first composition by distillation at a first production location in a distillation apparatus comprising at least two distillation columns operating at different head pressures, thus generating a second composition comprising the diamine and ≤55 wt.-% water, wherein the vapours emerging from the distillation column operating at the higher head pressure are used to evaporate the liquid in the bottoms and/or the feed of a distillation column operating at the lower head pressure at least partially, c) transporting said second composition during a span of time t from the first production location to a second production location, wherein the span of time t including times for optional temporary storage is at least 6 h.
The invention relates to a method for the processing and transport of hexane-1,6-diamine or pentane-1,5-diamine comprising the steps of: a) Providing a first composition including 60 to 98 wt.-% water and 2 to 40 wt.-% hexane-1,6-diamine or pentane-1,5-diamine, b) partially removing water from the first composition by distillation at a first production location, whereby a second composition is generated, said second composition including the hexane-1,6-diamine or pentane-1,5-diamine and 1 wt.-% to 35 wt.-% water, and c) transporting said second composition during a span of time t from the first production location to a second production location, wherein the span of time t including times for optional temporary storage is at least 6 h.
The present invention relates to two-component coating systems containing polyaspartic acid esters with only small amounts of fumaric acid dialkyl esters, to a method for preparing same and their use for producing coatings for use in construction and wind energy. An example for the use of these systems is for coating roofs, for coating floorings and for coating rotor blades of wind turbines, or the leading edges of their rotor blades.
The present invention relates to a method of preparing hexamethylene diisocyanate according to claim 1, and of preparing polyurethane from hexamethylene diisocyanate, wherein methanol is used in the method in question as a raw material for the build-up of the hexamethylene moiety of the hexamethylene diisocyanate.
C25B 15/08 - Supplying or removing reactants or electrolytesRegeneration of electrolytes
C01B 3/12 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of inorganic compounds containing electro-positively bound hydrogen, e.g. water, acids, bases, ammonia, with inorganic reducing agents by reaction of water vapour with carbon monoxide
C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
C07C 29/151 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
C07C 41/09 - Preparation of ethers by dehydration of compounds containing hydroxy groups
C07C 209/48 - Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of carboxylic acids or esters thereof in presence of ammonia or amines, or by reduction of nitriles, carboxylic acid amides, imines or imino-ethers by reduction of nitriles
C07C 253/26 - Preparation of carboxylic acid nitriles by ammoxidation of hydrocarbons or substituted hydrocarbons containing carbon-to-carbon multiple bonds, e.g. unsaturated aldehydes
C07C 263/10 - Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
An aqueous UV-curable dispersion at least includes a reaction product composed of a) at least one polyisocyanate having an average isocyanate functionality of at least 2.2, of which preferably at least one polyisocyanate is an oligomeric polyisocyanate having urethane, biuret, allophanate, iminooxadiazinedione and/or isocyanurate structural units; b) at least one monohydroxy-functional compound containing acryloyl groups, c) at least one component which contains nonionic hydrophilizing groups and has at least one further isocyanate-reactive group and d) at least one diol, triol, diamine and/or triamine, the reaction product having no ionogenic or ionically hydrophilizing groups.
The invention relates to a coated film and a method for preparing the same, use of the coated film for manufacturing shaped bodies, a method for manufacturing shaped bodies from the coated film, and a shaped body made therefrom. The coated film comprises a plastic film with Shore hardness of not less than 80A and a coating formed by applying an aqueous coating composition to the plastic film, wherein the plastic film is a film of a thermoplastic polyurethane based on polyester polyol, and the aqueous coating composition comprises: a. 45% by weight to 85% by weight of a dispersion of an anionic polyurethane based on polycarbonate polyol; b. 0% by weight to 40% by weight of a dispersion of an anionic polyurethane based on polyether polyol; c. 2% by weight to 18% by weight of a dispersion of anionic silica; d. 0.5% by weight to 10% by weight of a blocked isocyanate; and e. 0.1% by weight to 10% by weight of an additive; the amounts above being relative to the total weight of the composition.
A method comprising operating an electrolysis apparatus comprising a plurality of electrolyzers is provided. Each electrolyzer on the anode side has at least one liquid drain and at least one gas outlet, and separately therefrom on the cathode side has at least one liquid drain and at least one gas outlet. The anode spaces of these electrolyzers are connected to one another and separately therefrom the cathode spaces of these electrolyzers are connected to one another, in each case at least via a liquid feed, a gas discharge and a liquid discharge. The liquid drains from the anode spaces and/or the cathode spaces of the electrolyzers are effected, per electrolyzer, via a pipeline siphon into the pipeline system of the liquid discharge. An electrolysis apparatus and a method comprising decoupling an operating pressure on a liquid drain side of an electrolyzer are also provided.
C25B 9/23 - Cells comprising dimensionally-stable non-movable electrodesAssemblies of constructional parts thereof with diaphragms comprising ion-exchange membranes in or on which electrode material is embedded
C25B 1/46 - Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
C25B 9/70 - Assemblies comprising two or more cells
The present application relates to a heat-resistant thermoplastic electrostatic dissipative composition and shaped articles made therefrom. The composition comprises the following components: an aromatic polycarbonate, a polyalkylene terephthalate, a carbon nanotube and a reinforcement material. The shaped article made from the composition according to the present invention has a good combination of heat-resistance, semi-conductivity and dimensional stability.
The invention is related to a process for producing epoxy-group terminated and isocyanurate-group containing polyoxazolidinones comprising reacting at least one polyisocyanate compound (A), which is at least one monomeric polyisocyanate compound and/or PMDI, with at least one polyepoxide compound (B), in the presence of at least one catalyst (C), at a molar ratio of the epoxy groups of the at least one polyepoxide compound (B) to the isocyanate groups of the at least one polyisocyanate compound (A) of ≥ 2:1 to ≤ 25:1, wherein the at least one polyisocyanate compound (A) is added to the at least one polyepoxide compound (B) over a period of ≥ 1 minute to ≤ 50 minutes at a reaction temperature (TR) of ≥ 105°C to ≤ 160° C. The invention is also related to the resulting epoxy-group terminated and isocyanurate-group containing polyoxazolidinones, as well as to a composition at least comprising the resulting epoxy-group terminated and isocyanurate-group containing polyoxazolidinones and compounds having at least one group that is reactive towards terminal epoxy-groups, furthermore to the process for the preparation of said composition, the use of this composition as or in a coating formulation, to a coating formulation comprising at least this composition, to a process for coating a substrate comprising the step of applying of this coating formulation onto the substrate, and to the correspondingly coated substrate.
C08G 18/00 - Polymeric products of isocyanates or isothiocyanates
C08G 18/02 - Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
C08G 18/18 - Catalysts containing secondary or tertiary amines or salts thereof
C08G 18/76 - Polyisocyanates or polyisothiocyanates cyclic aromatic
C08G 59/00 - Polycondensates containing more than one epoxy group per moleculeMacromolecules obtained by reaction of epoxy polycondensates with monofunctional low-molecular-weight compoundsMacromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
C09D 163/00 - Coating compositions based on epoxy resinsCoating compositions based on derivatives of epoxy resins
The present invention relates to a polycarbonate composition comprising the following components, relative to the total weight of the composition A) 63-81 wt.% of an aromatic polycarbonate, B) 13-20 wt.% of a phosphorus flame retardant, C) 4-12 wt.% of impact modifiers containing 1-7 wt.% of a first impact modifier and 1-7 wt.% a second impact modifier, wherein the first impact modifier is acrylonitrile-butadiene-styrene, and the second impact modifier is selected from methyl methacrylate-butadiene-styrene and silicone-acrylic rubber based impact modifiers, D) 1-6 wt.% of a mineral filler, and E) 0.05- 0.09 wt.% of polytetrafluoroethylene. The present invention also relates to a shaped article made from the composition. The polycarbonate composition according to the present invention has a good combination of flame retardancy and impact strength.
C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
C07C 29/151 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of oxides of carbon exclusively with hydrogen or hydrogen-containing gases
C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
C07C 45/28 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by oxidation of —CHx-moieties
Provided is a composition comprising: A) an aromatic polycarbonate or an aromatic polyester carbonate, B) an acrylonitrile/butadiene/styrene polymer, C) a stabilization package comprising C.1) a phosphate ester included in an amount greater than zero but less than 0.1 wt.%, C.2) a phenolic antioxidant included in an amount greater than zero but less than 0.3 wt.%, and optionally C.3) a UV light absorber, and optionally D) one or more components selected from the group consisting of polymer additives, polymeric blending partners different from component B, and optionally E) colorants. The composition provides good thermal stabilization of polycarbonate/acrylonitrile/butadiene/styrene (PC/ABS) blends with a surprisingly low variation in the yellowness index (YI) value and reduces residual BPA content while retaining mechanical and thermal properties and providing potentially good hydrolytic stability.
The invention relates to a method for producing alkylene oxides by reacting an alkene with an arene oxide, pyridine-N-oxide, and/or pyrimidine-N-oxide, preferably an arene oxide and/or pyridine-N-oxide, in the presence of a catalyst in a first reactor, wherein the catalyst comprises a metal and/or a metal salt, and the metal is copper, silver, and/or gold. The metal salt comprises chrome, iron, cobalt, and/or copper cation(s), and the reaction is carried out in the absence of oxygen or an oxygen-containing gas mixture.
C07D 301/10 - Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with air or molecular oxygen in the gaseous phase with catalysts containing silver or gold
91.
Method for Producing Monomers And/or Oligomers From a Polymer
The invention relates to a method for producing monomers and/or oligomers from a polymer that includes a structural unit having a nitrogen-carbonyl carbon bond. The nitrogen-carbonyl carbon bond is broken in a chemical reaction with formaldehyde or paraformaldehyde as the activating reagent. The reaction takes place using a Lewis acid acting as a catalyst. The invention also relates to monomers, in particular a carboxylic acid monomer and an aldimine monomer or an amine monomer, obtained or produced from this method.
C08J 11/22 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with organic material by treatment with organic oxygen-containing compounds
C07C 209/62 - Preparation of compounds containing amino groups bound to a carbon skeleton by cleaving carbon-to-nitrogen, sulfur-to-nitrogen, or phosphorus-to-nitrogen bonds, e.g. hydrolysis of amides, N-dealkylation of amines or quaternary ammonium compounds
C08J 11/14 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with steam or water
C08J 11/16 - Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
92.
SPECIAL POLYMER LAYERS FOR FASTER LAMINABILITY OF MULTILAYER STRUCTURES
The invention relates to a multilayer structure (MS) comprising (SI) at least one first polymer layer (SI) comprising ≥95% by weight, preferably ≥98% by weight, particularly preferably ≥99% by weight, based on the total weight of the polymer layer (SI), of a polymer (PI) selected from the group consisting of a polycarbonate, a co-polycarbonate or mixtures thereof having a Vicat softening temperature≥149° C., preferably ≥160° C., Further preferably ≥170° C.; more preferably ≥180° C., determined according to ISO 360:2004 (50N; 50° /h); (S2) at least one further polymer layer (S2) having a Vicat softening temperature<149° C., preferably ≥140° C., more preferably ≤130° C., determined according to ISO 306:2004 (50N; 50° /h), preferably in a range from 120° C. to 148° C.; (S3) optionally at least one third polymer layer (S3) having a Vicat softening temperature ≥149° C., preferably ≥160° C., further preferably ≥170° C.; more preferably ≥180° C., determined according to ISO 306:2004 (50N; 50° h). The invention further relates to a process for producing a multilayer structure (MS) and to a security document comprising such a multilayer structure according to the invention.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 37/18 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with all layers existing as coherent layers before laminating involving the assembly of discrete sheets or panels only
The present invention relates to polyisocyanate compositions comprising two different types of polyisocyanate, their use in the manufacture of prepregs and polyisocyanurate composited made from said prepregs.
The invention relates to a modified polyisocyanate and use thereof, especially as a crosslinking component in a water-soluble or water-dispersible coating composition. The modified polyisocyanate comprises iminooxadiazinedione structure and isocyanurate structure, wherein the weight ratio of the iminooxadiazinedione structure to the isocyanurate structure is not less than 1: 5; and relative to the total weight of the modified polyisocyanate, the total amount of molecules with a number average molecular weight greater than 2700 g/mol in the modified polyisocyanate is 4.1% by weight to 22% by weight; and the modified polyisocyanate is obtainable by the reaction of: an aminosulfonic acid, a polyisocyanate; a tertiary amine; and optionally a polyether alcohol containing ethylene oxide groups.
The invention relates to coating agents containing polyisocyanates that include amino silane groups and/or mercapto silane groups, further containing a stored mixture of hydroxyl group-containing compounds and alkoxysilyl-functional siloxanes, and catalysts for crosslinking silane groups. Also disclosed are the production of said coating agents and the use thereof for producing coatings on substrates, in particular plastic substrates, e.g. substrates used in the automobile industry.
B05D 7/00 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
C08G 18/12 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step using two or more compounds having active hydrogen in the first polymerisation step
C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
The present invention relates to a process for preparing bisphenol A in the presence of cumene without poisoning the catalyst system comprising an ion exchange resin catalyst and a sulfur containing cocatalyst. Moreover, the present invention provides a process for preparing polycarbonate.
C07C 37/20 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms using aldehydes or ketones
The present disclosure relates to thermoplastic compositions on the basis of aromatic polycarbonate having a high comparative tracking index, a good flame retardancy and high heat deflection temperature. The compositions described herein contain a combination of PMMI, a phosphorus-containing flame retardant and a fluorine-containing anti-dripping agent. The present disclosure also relates to an EE component.
H01B 7/295 - Protection against damage caused by external factors, e.g. sheaths or armouring by extremes of temperature or by flame using material resistant to flame
98.
GLYCATION OF AMINOBENZOIC ACID IN ORDER TO IMPROVE EFFICIENCY OF MICROBIAL PROCESSES
The present invention relates to the discovery that glycated aminobenzoic acid (AB) is significantly less toxic for microbial cells than free AB. The invention describes fermentation media and processes that allow glycation of AB and the efficiency of microbial processes in which AB is contained or formed in the medium to be increased.
The present invention relates to an aromatic polycarbonate containing: A) structural units with free COOH functionality which are derived from a hydroxybenzoic acid and are present as end groups, and B) structural units derived from a hydroxybenzoic acid, wherein component B) is chosen from at least one representative from B1) structural units with esterified COOH functionality which are derived from a hydroxybenzoic acid and are present as end groups, and B2) structural units derived from a hydroxybenzoic acid which are incorporated into the polymer chain via an ester or acid anhydride group, wherein the molar ratio of the quantity of component A to the quantity of component B ranges from 1.3 to 50, as well as copolymers and thermoplastic moulding compounds and moulds containing such a polycarbonate or copolymer, a method for preparing the polycarbonate and a method and use of the polycarbonate to prepare the copolymers.
C08G 81/02 - Macromolecular compounds obtained by interreacting polymers in the absence of monomers, e.g. block polymers at least one of the polymers being obtained by reactions involving only carbon-to-carbon unsaturated bonds
C08G 64/14 - Aromatic polycarbonates not containing aliphatic unsaturation containing a chain-terminating or -crosslinking agent
C08G 64/24 - General preparatory processes using carbonyl halides and phenols
C08G 85/00 - General processes for preparing compounds provided for in this subclass
A drug injection device consists of a body, a cap, a striker, a spin wheel, a button, a spring, an ampoule, and optionally a needle. Each of the body, the cap, the striker, the spin wheel and the button is a molded plastic part, made out of mostly polycarbonate, which slide, snap, screw or rest in place, without the use of adhesives or fasteners. Also disclosed is a system for recycling a drug injection device having molded plastic parts made from mostly polycarbonates, comprising disassembling the drug injection device, separating the molded plastic parts from all other parts, and reprocessing the molded plastic parts together into recycled resin, which may be through regrinding, melting, and pelletizing.
