SHANGHAI KINGFA TECHNOLOGY DEVELOPMENT CO., LTD (Chine)
Inventeur(s)
Yi, Qingfeng
Jiang, Sujun
Mai, Jiehong
Jiang, Zhingqiang
Long, Jieming
Yan, Xia
Ning, Kaijun
Cai, Tongmin
Abrégé
The present invention discloses a heat-resistant polyamide composition and application thereof. The composition comprises the following components in percentage by weight: 40% to 90% of heat-resistant polyamide resin, 5% to 35% of mineral fiber A, 0 to 35% of mineral filler B, 0.1% to 1% of light stabilizer, 0.1% to 1% of flow modifier and 0.1% to 1% of antioxidant. In the present invention, heat-resistant polyamide resin with the ratio of amine-terminated group and carboxyl-terminated group between 0.1 and 0.8 is selected to be matched with deformed glass fibers with an aspect ratio of 2 to 6, the mineral filler B and the flow modifier to obtain the heat-resistant polyamide composition. The heat-resistant polyamide composition not only has high initial whiteness, high reflectivity and excellent heat resistance, but also has good moldability and good dimensional stability; therefore, the heat-resistant polyamide composition is capable of being applied for preparing the reflecting supports for such light sources as LCD backlight of portable phones, computers, televisions and the like, as well as headlights of automotive vehicles, instrument panels and lighting appliances, etc.
C08K 5/36 - Composés contenant du soufre, du sélénium ou du tellure
C08K 5/52 - Phosphore lié à l'oxygène lié uniquement à l'oxygène
C08K 13/04 - Ingrédients caractérisés par leur forme et ingrédients organiques ou inorganiques
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
H01L 33/60 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique Éléments réfléchissants
Disclosed are a composite flame retardant and the application thereof. The composite flame retardant comprises the following components in percentage by weight: 15-99% of a flame retardant, 1-85% of a synergist and 0-25% of other additives, wherein the synergist is an ammonium salt at least containing one NH4+, and the additives are a char-forming agent and/or a stabilizer. By means of adding a suitable synergist, the composite flame retardant of the present invention can significantly improve the flame retardant efficiency of a hypophosphite or alkyl hypophosphite flame retardant, and greatly reduce the amount of the hypophosphite or alkyl hypophosphite flame retardant used.
MIANYANG DONGFANG SPECIAL ENGINEERING PLASTIC CO LTD (Chine)
Inventeur(s)
Wang, Lulin
Wang, Ling
Cheng, Qing
Ye, Xiaoguang
Cai, Tongmin
Ning, Kaijun
Liu, Xueliang
Guo, Shaohua
Abrégé
A composite flame retardant comprises the following components in percentage by weight: 40%-70% of brominated flame retardant, 2%-10% of phosphorus flame retardant, 20%-50% of flame retardant synergist, optionally 0%-0.5% of anti-drop agent, optionally 0%-2% of dispersing agent and optionally 0%-2% of processing agent. The preparation method of the composite flame retardant comprises the following steps: a: fully mixing materials according to a proportion in a high-speed mixer for 2-10 minutes at a rotary speed of 200-800r/minute; and b: adding the phosphorus flame retardant into a preceding mixture while stirring, and fully mixing at the rotary speed of 500-1500r/minute. The composite flame retardant is applied to a thermoplastic resin and a thermoplastic resin alloy; the composite flame retardant and the thermoplastic resin and/or the thermoplastic resin alloy are melted and blended.
The present invention provides a carbon fiber surface modifier, a modified carbon fiber, composites, and preparation methods therefor. The general structural formula of the carbon fiber surface modifier is as represented by formula (I): in formula (I), R1, R2, R1' and R2' respectively and independently represent hydrogen, hydroxyl, or the alkyl of C1-C3; R3 and R4 respectively and independently represent C1-C18 alkyl, C1-C18 alkoxyl, hydroxyl, amino, halogen, hydrogen, amide, ester, or siloxyl, wherein R3, R4 are not simultaneously hydrogen; R5 represents hydrogen, hydroxyl, amino, halo, or alkoxyl. The carbon fiber surface modifier of the present invention extends the field of application for carbon fibers. The modified carbon fiber can be widely used in thermoplastic resins such as PA, ABS, PEEK, polyolefin, and for the preparation of carbon fiber resin composite material with excellent mechanical properties.
C07C 215/50 - Composés contenant des groupes amino et hydroxy liés au même squelette carboné ayant des groupes hydroxy liés à des atomes de carbone d'au moins un cycle aromatique à six chaînons et des groupes amino liés à des atomes de carbone acycliques ou à des atomes de carbone de cycles autres que des cycles aromatiques à six chaînons du même squelette carboné avec des groupes amino reliés au cycle aromatique à six chaînons, ou au système cyclique condensé contenant ce cycle par l'intermédiaire de chaînes carbonées qui ne sont pas substituées de plus par des groupes hydroxy avec des groupes amino et le cycle aromatique à six chaînons, ou le système cyclique condensé contenant ce cycle, liés au même atome de carbone de la chaîne carbonée
C07C 217/58 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés liés à des atomes de carbone d'au moins un cycle aromatique à six chaînons et des groupes amino liés à des atomes de carbone acycliques ou à des atomes de carbone de cycles autres que des cycles aromatiques à six chaînons du même squelette carboné avec des groupes amino reliés au cycle aromatique à six chaînons, ou au système cyclique condensé contenant ce cycle, par l'intermédiaire de chaînes carbonées qui ne sont pas substituées de plus par des atomes d'oxygène liés par des liaisons simples avec des groupes amino et le cycle aromatique à six chaînons, ou le système cyclique condensé contenant ce cycle, liés au même atome de carbone de la chaîne carbonée
C07C 217/08 - Composés contenant des groupes amino et hydroxy éthérifiés liés au même squelette carboné ayant des groupes hydroxy éthérifiés et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant acyclique et saturé ayant un seul groupe hydroxy éthérifié et un seul groupe amino liés au squelette carboné, qui n'est pas substitué par ailleurs l'atome d'oxygène du groupe hydroxy éthérifié étant lié de plus à un atome de carbone acyclique
C07C 215/80 - Composés contenant des groupes amino et hydroxy liés au même squelette carboné ayant des groupes hydroxy et des groupes amino liés à des atomes de carbone de cycles aromatiques à six chaînons du même squelette carboné du même cycle aromatique à six chaînons non condensé contenant au moins deux groupes amino liés au squelette carboné
C07C 219/22 - Composés contenant des groupes amino et hydroxy estérifiés liés au même squelette carboné ayant des groupes hydroxy estérifiés et des groupes amino liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné étant non saturé et contenant des cycles aromatiques à six chaînons
C07C 213/08 - Préparation de composés contenant des groupes amino et hydroxy, amino et hydroxy éthérifiés ou amino et hydroxy estérifiés liés au même squelette carboné par des réactions n'impliquant pas la formation de groupes amino, de groupes hydroxy ou de groupes hydroxy éthérifiés ou estérifiés
C07C 229/34 - Composés contenant des groupes amino et carboxyle liés au même squelette carboné ayant des groupes amino et carboxyle liés à des atomes de carbone acycliques du même squelette carboné le squelette carboné contenant des cycles aromatiques à six chaînons
C07C 227/08 - Formation de groupes amino dans des composés contenant des groupes carboxyle par des réactions d'addition ou de substitution, sans augmentation du nombre d'atomes de carbone dans le squelette carboné de l'acide par réaction d'ammoniac ou d'amines avec des acides contenant des groupes fonctionnels
C07C 211/27 - Composés contenant des groupes amino liés à un squelette carboné ayant des groupes amino liés à des atomes de carbone acycliques d'un squelette carboné non saturé contenant au moins un cycle aromatique à six chaînons ayant des groupes amino reliés au cycle aromatique à six chaînons par l'intermédiaire de chaînes carbonées saturées
C07C 209/48 - Préparation de composés contenant des groupes amino liés à un squelette carboné par réduction d'acides carboxyliques ou de leurs esters en présence d'ammoniac ou d'amines ou par réduction de nitriles, d'amides d'acides carboxyliques, d'imines ou d'imino-éthers par réduction de nitriles
C07C 237/20 - Amides d'acides carboxyliques, le squelette carboné de la partie acide étant substitué de plus par des groupes amino ayant les atomes de carbone des groupes carboxamide liés à des atomes de carbone acycliques du squelette carboné le squelette carboné contenant des cycles aromatiques à six chaînons
C07C 231/12 - Préparation d'amides d'acides carboxyliques par des réactions n'impliquant pas la formation de groupes carboxamide
C07F 7/18 - Composés comportant une ou plusieurs liaisons C—Si ainsi qu'une ou plusieurs liaisons C—O—Si
SHANGHAI KINGFA TECHNOLOGY DEVELOPMENT CO., LTD. (Chine)
Inventeur(s)
Yi, Qingfeng
Jiang, Sujun
Mai, Jiehong
Jiang, Zhingqiang
Long, Jieming
Yan, Xia
Ning, Kaijun
Cai, Tongmin
Abrégé
Disclosed are a heat resistant polyamide composition and application thereof. The composition comprises the following components by weight percentage: 40%-90% of heat resistant polyamide resin, 5%-35% of mineral fibers A, 0-35% of mineral fillers B, 0.1%-1% of light stabilizers, 0.1%-1% of flow modifiers and 0.1%-1% of antioxidants. In the present invention, the heat resistant polyamide resin with a concentration ratio of amino-terminated groups to carboxyl-terminated groups being 0.1-0.8 is selected and combined with irregular glass fiber with an aspect ratio being 2-6, the mineral filler B and the flow modifier, so as to obtain the heat resistant polyamide composition. The composition has high original whiteness and reflectivity, excellent heat resistance, good formability and good dimensional stability, and can be used to prepare the reflection supports of light sources such as the backlights of liquid crystal displays such as portable phones, computers, and televisions, motor vehicle headlights, instrument panels and illuminators.
H01L 33/56 - Matériaux, p.ex. résine époxy ou silicone
H01L 33/60 - DISPOSITIFS À SEMI-CONDUCTEURS NON COUVERTS PAR LA CLASSE - Détails caractérisés par les éléments du boîtier des corps semi-conducteurs Éléments de mise en forme du champ optique Éléments réfléchissants
6.
HIGHLY FATIGUE-RESISTANT GLASS FIBER REINFORCED NYLON MATERIAL AND PREPARATION METHOD THEREFOR
SHANGHAI KINGFA TECHNOLOGY DEVELOPMENT CO., LTD. (Chine)
KINGFA SCIENCE & TECHNOLOGY CO., LTD. (Chine)
Inventeur(s)
Feng, Decai
Ding, Zhengya
Sun, Yajie
Liang, Huiqiang
Abrégé
A highly fatigue-resistant glass fiber reinforced nylon material and a preparation method therefor. The highly fatigue-resistant glass fiber reinforced nylon material comprises 48.2 wt%-79.7 wt% of nylon resin, 20 wt%-50 wt% of glass fiber, 0.1 wt%-0.6 wt% of an antioxidant, 0.1 wt%-0.6 wt% of a lubricant, 0.1 wt%-0.6 wt% of a nucleating agent, which are subjected to melt blending at 210-300°C, to prepare the highly fatigue-resistant glass fiber reinforced nylon material. The glass fiber reinforced nylon has an excellent fatigue resistance, as well as a high mechanical performance, and a good surface performance, thus being useful for peripheral parts of an automotive engine and parts in other industries.
C08L 77/00 - Compositions contenant des polyamides obtenus par des réactions créant une liaison amide carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
C08L 77/02 - Polyamides dérivés des acides oméga-aminocarboxyliques ou de leurs lactames
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
C08K 13/04 - Ingrédients caractérisés par leur forme et ingrédients organiques ou inorganiques
The present invention relates to a kind of biodegradable polyester and its preparation method, which belongs to the field of biodegradable co-polyester product technology. The number-average molecular weight of the biodegradable polyester material under this invention is 6000-135000 g/mol, the molecular weight distribution is 1.2-6.5, and the range of crystallization temperature is 15° C.-105° C., which could overcome the disadvantages of existing technical products and can be processed into membrane materials, sheet materials and foam materials. During processing, the picking property will be dramatically changed with the appearance quality improved; after heat resistance is improved, this new type of polyester material could also be applied to the processing course with long cycles, for example, the injection processing course, and the biodegradable aliphatic/aromatic polyester materials provided by this invention has excellent mechanical properties.
C08G 63/60 - Polyesters dérivés soit d'acides hydroxycarboxyliques, soit d'acides polycarboxyliques et de composés polyhydroxylés dérivés de la réaction d'un mélange d'acides hydroxycarboxyliques, d'acides polycarboxyliques et de composés polyhydroxylés
The present invention discloses a thermoplastic flame-retardant alloy and a method for preparing it, composed of the following components as below (parts by weight): 5-94 parts of ABS resin, 3-94 parts of polyester or co-polyester or the mixture of both, 1-50 parts of brominated flame retardant, 1-10 parts of flame-retardant aid, 0.001-30 parts of chlorinated polyethylene (CPE), 0.001-2 parts of anti-dripping agent and 0.1-6 parts of processing aid. Comparing with the ABS flame retardant presenting the prior art, the thermoplastic flame-retardant alloy features better glossiness, scratch resistance, stronger ultraviolet radiation resistance and better mechanical property, thus making up for the disadvantage that the flame-retardant ABS is prone to become yellow on some occasions with high weatherability requirements. Furthermore, the preparation method of the thermoplastic flame-retardant alloy for the present invention is successive, stable and feasible.
A method for preparing polyaryletherketone-based copolymer by using quaternary copolymerization technology comprises: (1) adding high-temperature organic solvent into a three-necked flask equipped with a thermometer, a nitrogen-feeding pipe, and a stirrer; then stirring and heating; orderly adding 4,4'-difluorodiphenylketone, 4,4'-bifluorotriphenyldione, hydroquinone, and 4,4'-dihydroxydiphenylketone after the high-temperature organic solvent has been melted, and stirring to completely dissolve them; adding alkali carbonate of 1-5% excessive amount relative to total mole of hydroquinone and 4,4'-dihydroxydiphenylketone,;heating to 220-230℃ while stirring, and maintaining the temperature for 20-40 minutes to complete the first salt-forming reaction, (2) heating to 250-260℃, and maintaining the temperature for 20-40 minutes to complete the second salt-forming reaction, (3) heating to 300-320℃ to start condensation polymerization, and maintaining the temperature for 3-4 hours to complete the polymerization, and (4) pouring the obtained polymer solution into distilled water at room temperature to cool to strip-shaped solid, pulverizing, extracting with ethanol to remove organic solvent, extracting with deionized water to remove byproduct salts, and vacuum-drying to obtain quaternary copolymer containing PEEK, PEEKK, PEK, and PEKEKK repeating units in molecule chains. When the mole ratio of hydroquinone to 4,4'-dihydroxydiphenylketone is above 99:1 and the mole ratio of 4,4'-difluorodiphenylketone to 4,4'-bifluorotriphenyldione is above 99:1, the obtained quaternary copolymer mainly contains PEEK chain segments, and has the same macrophysical properties as those of PEEK.
C08G 65/04 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule à partir d'éthers cycliques par ouverture d'un hétérocycle uniquement à partir d'éthers cycliques
10.
BIODEGRADABLE POLYESTERS AND PREPARING METHOD THEREOF
Biodegradable polyesters and preparing method thereof. The biodegradable polyesters have a number average molecular weight within the range from 6000 to 135000 g/mol, an molecular weight distribution within 1.2 to 6.5, and a crystal temperature within 15 to 105℃, and are characterized in that which are prepared from 94 to 100 mol% of component A and 0 to 6 mol% of component B, wherein the component A is comprised of component A1 and component A2 in a molar ratio of 0.35-1.6 :1, the component A1 is comprised of 20 to 100 mol% of component A11 (aliphatic or cycloaliphatic diacids or ester-forming derivatives thereof) and 0 to 80 mol% of component A12 (aromatic diacids or ester-forming derivatives thereof), and the component A2 is comprised of 80 to 99.9 mol% of component A21 (C2-C8 aliphatic diols, C5-C16 cycloaliphatic diols, aliphatic diols with multi rings, aliphatic polyether diols and hydroxy fatty acids) and 0.1 to 20 mol% of component A22 (diols containing aromatic ring, polyether diols containing aromatic ring and C8-C18 hydroxyl organic acids containing aromatic ring), and the component B is comprised of one or two of component B1 (aliphatic or aromatic, polyols or polycarboxylic acids), B2 (isocyanate compounds, polyols with isocyanurate ring, and polyether polyols with isocyanurate ring) and B3 (carbodiimide compounds).
The present invention relates to a semi-aromatic polyamide and a method for preparing it with low wastewater discharge. The semi-aromatic polyamide for the present invention is obtained by introducing aromatic dicarboxylic acid, aliphatic diamine containing 4˜14 carbon atoms and the wastewater generated during the previous prepolymerization into an autoclave for prepolymerization reaction and then further polymerizing the prepolymer. In this preparation method, the wastewater generated during polymerization is recycled, thus greatly reducing the wastewater discharge; the raw materials in the wastewater are effectively recycled, thus improving the utilization rate of raw materials; meanwhile, the diamine in the wastewater compensates that lost along with water discharge during prepolymerization, thus ensuring the Mole ratio balance between dicarboxylic acid monomer and diamine monomer.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
12.
FLAME RETARDING THERMOPLASTIC ALLOY AND ITS PREPARATION METHOD
A flame retarding thermoplastic alloy and its preparation method are provided. The alloy comprises the following components with the following parts by weight: ABS resin 5-94, polyester or copolyester or the mixture of them 3-94, brominated flame retardant 1-50, flame retardant auxiliary 1-10, chloropolyethylene (CPE) 0.001-30, anti-dripping agent 0.001-2 and processing aid 0.1-6. The preparation method includes the following steps: premixing all of the components through the high speed mixer, adding into the twin-screw extruder, plastifying, mixing and extruding under 150-250°C, cooling and granulating, then obtaining the flame retarding alloy.
C08L 67/00 - Compositions contenant des polyesters obtenus par des réactions créant une liaison ester carboxylique dans la chaîne principaleCompositions contenant des dérivés de tels polymères
13.
A LOW TEMPERATURE IMPACT RESISTANCE POLYPROPYLENE RESIN COMPOSITION, PREPARATION METHOD AND USE FOR AUTOMOBILE INNER TRIM THEREOF
The low temperature impact resistance polypropylene resin composition consists of polypropylene resin 40-79.8wt%, mineral filler 15-35wt%, and toughening agent 5-30wt%, based on the total weight of composition. And 0.1-1wt% antioxidant and 0.1-1wt% weatherproof agent may also be added to the polypropylene resin composition. The low temperature impact resistance polypropylene resin composition is prepared through smelting and mixing at 170-230℃ by twin screw extruder or double acting single screw extruder with screw length-diameter ratio not less than 32. The polypropylene resin composition is used to produce automobile trim having good low temperature impact resistance property.
A semi-aromatic polyamide and the process with low amount of waste water discharge for preparing the same. The semi-aromatic polyamide is obtained as follows: adding aromatic dicarboxylic acid, aliphatic diamine with 4 to 14 carbon atoms and waste water formed from the last prepolymerization to an autoclave to prepolymerize; and subjecting the resulted prepolymer to further polymerization.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
A semiaromatic polyamide and the preparation method thereof. The semiaromatic polyamide of the present invention is manufactured as follows: producing an amide salt of high purity by neutralization reaction of aromatic dicarboxylic acids and aliphatic diamines with 4-14 carbon atoms in an organic solvent; carrying out prepolymerization of the amide salt of high purity in the presence of water; and subjecting the resulted prepolymer to further polymerization.
C08G 69/26 - Polyamides dérivés, soit des acides amino-carboxyliques, soit de polyamines et d'acides polycarboxyliques dérivés de polyamines et d'acides polycarboxyliques
C08L 77/06 - Polyamides dérivés des polyamines et des acides polycarboxyliques
16.
BROMOTRIAZINE-CONTAINING POLYSTYRENIC RESIN COMPOSITE AND THE METHOD FOR PREPARATING THE SAME
A bromotriazine-containing polystyrenic resin composite and the method for preparing the same. The polystyrenic resin composite is produced by extruding 75-91 wt% of polystyrenic resin, 6-18 wt% of bromotriazine flame-retardant, 2-7 wt% of flame-proofing synergist, and 0.1-1 wt% of antioxidant through a two screw extruder.
brevets
