摘要:
The invention concerns thermoplastic polyesters (such as PET or PBT) comprising, by weight, the total being 100%: 60 to 99% of thermoplastic polyester; 1 to 40% of impact modifier comprising: (a) a core-shell copolymer (A), (b) an ethylene copolymer (B) selected among ethylene copolymers (B1) and an unsaturated carboxylic acid anhydride, ethylene copolymers (B2) and an unsaturated epoxy compound and mixtures thereof, (c) a copolymer (C) selected among ethylene copolymers (C1) and an alkyl (meth)acrylate, ethylene copolymers (C2) and (meth)acrylic acid optionally neutralised and mixtures thereof. The invention also concerns an impact modifying composition which can be added in thermoplastic polyesters to improve their shock-proof properties and comprising constituents (A), (B) and (C).
摘要:
The present invention relates to a polyamide-based multilayer structure comprising in succession: an upper layer made of a transparent polyamide coming from the condensation: either of a lactam or of an α,Ω-amino acid having at least 9 carbon atoms or of a diamine and of a diacid, at least one having at least 9 carbon atoms; a lower layer capable of adhering to the substrate and optionally, an intermediate tie layer (also called a central layer) between the upper layer and the lower layer, each of the layers exhibiting thermomechanical behaviour (strength as a function of temperature) sufficiently similar to allow the structure to be easily formed under the effect of the temperature. The invention also relates to the objects consisting of these substrates covered with these structures, the lower layer being placed against the substrate.
摘要:
The invention relates to a composition based on polypropylene homopolymer or copolymer and on an impact modifier comprising an ethylene/alkyl acrylate copolymer. This composition comprises substantially between 1 and 40% by weight of impact modifier and it may comprise an ethylene-based copolymer taken from the group comprising ethylene/acrylate copolymers, vinyl acetate copolymers, polyethylene obtained by metallocene catalysis or mPE and linear low-density polyethylene or LLDPE. The PP thus modified is useful for manufacturing motor-vehicle parts for example of the bumper or dashboard type, requiring good thermomechanical strength over a wide range of temperatures.
摘要:
The present invention relates to an antistatic polymer composition and more specifically to a composition comprising a thermoplastic polymer (A) and a copolymer (B) comprising polyamide blocks and polyether blocks comprising essentially ethylene oxide units —(C2H4—O)—, the copolymer (B) having a melting temperature of between 80 and 150° C. It is of use for the polymers (A) which are heat-sensitive or which are processed at low temperature.
摘要翻译:本发明涉及抗静电聚合物组合物,更具体地说涉及包含热塑性聚合物(A)和共聚物(B)的组合物,该组合物包含聚酰胺嵌段和基本上包含环氧乙烷单元(C 2 H 4 O) - ,共聚物( B)熔融温度在80-150℃之间。对于热敏性或在低温下加工的聚合物(A)是有用的。
摘要:
The present invention relates to polyetheresteramides (B) containing polyamide blocks comprising dicarboxylic acid sulphonates either as polyamide-block chain limiters or combined with a diamine as one of the constituent monomers of the polyamide block, and containing polyether blocks consisting essentially of alkylene oxide units. The invention also relates to polyetheresteramides (B) containing polyamide blocks of the polyamide oligomer type of low molecular mass or of the copolyamide type which comprise dicarboxylic acid sulphonates and containing polyether blocks which are adducts of alkylene oxide with an aromatic diol. The invention also relates to antistatic or breathable polymer compositions comprising a thermoplastic polymer (A) and at least one of the above polyetheresteramides (B).
摘要:
A breathable film includes at least one polymer (a) taken from the group comprising an ethylene/alkyl (meth)acrylate copolymer (a1), an optionally neutralized ethylene/ (meth)acrylic acid copolymer (a2), an ethylene/vinyl monomer copolymer (a3), the (a1)/(a2) blend, the (a1)/(a3) blend, the (a2)/(a3) blend and the (a1)/(a2)/(a3) blend, and/or includes at least one functionalized polyethylene (b); and at least one copolymer (c) having copolyamide blocks or polyester blocks and polyether blocks.
摘要:
The present invention relates to polyetheresteramides (B) containing polyamide blocks comprising dicarboxylic acid sulphonates either as polyamide-block chain limiters or combined with a diamine as one of the constituent monomers of the polyamide block, and the containing polyether blocks consisting essentially of alkylene oxide units.The invention also relates to polyetheresteramides (B) containing polyamide blocks of the polyamide oligomer type of low molecular mass or of the copolyamide type which comprise dicarboxylic acid sulphonates and containing polyether blocks which are adducts of alkylene oxide with an aromatic diol.The invention also relates to antistatic or breathable polymer compositions comprising a thermoplastic polymer (A) and at least one of the above polyetheresteramides (B).
摘要:
The invention relates to a composition comprising, for 100 parts by weight, 99-60 parts of a styrenic polymer (A), 1-40 parts of (B)+(C), (B) being a polyamide block and polyether block copolymer essentially comprising ethylene oxide patterns (C2H4-O)—, (C) being a compatibilizer of styrene and at least one polymerized block comprising ethylene patterns, (B)/(C) ranging from 2 to 10.
摘要翻译:本发明涉及一种组合物,其包含100重量份的99-60份苯乙烯聚合物(A),1-40份(B)+(C),(B)为聚酰胺嵌段和聚醚嵌段共聚物 基本上包括环氧乙烷图案(C 2 H 4 O) - ,(C)是苯乙烯的增容剂和至少一种包含乙烯图案的聚合嵌段,(B)/(C)范围为2-10。
摘要:
The invention relates to a composition comprising, for 100 parts by weight, 99-60 parts of a styrenic polymer (A), 1-40 parts of (B)+(C), (B) being a polyamide block and polyether block copolymer essentially comprising ethylene oxide patterns (C2H4-O)—, (C) being a compatibilizer chosen from block copolymers comprising at least one polymerized block comprising styrene and at elast one polymerized block comprising methyl methacrylate, (B)/(C) ranging from 2 to 10.
摘要翻译:本发明涉及一种组合物,其包含100重量份的99-60份苯乙烯聚合物(A),1-40份(B)+(C),(B)为聚酰胺嵌段和聚醚嵌段共聚物 基本上包括环氧乙烷图案(C 2 H 4 -O) - ,(C)是选自包含至少一个包含苯乙烯的聚合嵌段的嵌段共聚物和在包含甲基丙烯酸甲酯的弹性聚合嵌段的(B)/(C)范围从2 到10。
摘要:
The invention relates to a composition comprising, for 100 parts by weight, 99-60 parts of a styrenic polymer (A), 1-40 parts of (B)+(C), (B) being a polyamide block and polyether block copolymer essentially comprising ethylene oxide patterns (C2H4-O)—, (C) being a compatibilizer of styrene and at least one polymerized block comprising ethylene patterns, (B)/(C) ranging from 2 to 10.