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HYPERBRANCHED COPOLYAMIDE, PROCESS FOR ITS PRODUCTION, ITS USES AND COMPOSITIONS BASED ON SAID HYPERBRANCHED COPOLYAMIDE
HYPERBRANCHED COPOLYAMIDE, PROCESS FOR ITS PRODUCTION, ITS USES AND COMPOSITIONS BASED ON SAID HYPERBRANCHED COPOLYAMIDE
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机译:基于所述的超支化聚丙烯酰胺的超支化聚丙烯酰胺,其生产过程,用途和组成
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摘要
The invention relates to hyperbranched copolyamides (HBPAs), to their production and to their use as additives, in particular as melt viscosity modifiers in thermoplastic polymer compositions.This copolyamide is obtained by a reaction between a monomer (I): A-R-Bfwith A and B=polymerization functions of a 1st and 2nd type, respectively, which are capable of reacting with each other, R=hydrocarbon-based species and f=total number of B per monomer (preferably 2=f=10); and a monomer (II) A'-R'-B' or the corresponding lactams, with A', B' and R' having the same definition as that given above for A, B and R, respectively. This HBPA has a I/II molar ratio such that 0.125=I/II2.One of the species R or R' of (I) or (II) is aliphatic, cycloaliphatic or arylaliphatic.For example: A=NH2 and B=COOH or A=COOH and B=NH2 with F=2.A'=NH2 and B'=COOH or A'=COOH and B'=NH2.A-R-B2, e.g.: 5-aminoisophthalic acid or 3,5-diaminobenzoic acid and A'-R'-B'=epsilon-caprolactam.The yarns, fibres, films and moulded parts obtained using polymer compositions (e.g. PA) to which are added HBPA according to the invention are also included in this invention.
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