Patent ID: 9365744
Filing Date: 2016-06-14
CPC Classification: B32B,C08G,C08K,C08L,C09D,Y10T

Claim Text:
1. A copolyamide comprising at least two different units, said copolyamide corresponding to the following formula: A is a unit obtained from an amino acid, a unit obtained from a lactam or a unit corresponding to the formula (C a diamine).(C b diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, the C b diacid of the unit A being a (cyclo)aliphatic diacid, X.T denotes a unit obtained from the polycondensation of a C x aliphatic and linear diamine and of terephthalic acid, with x representing the number of carbon atoms of the C x diamine, x being between 10 and 36, said copolyamide exhibiting: a content of amine chain ends of greater than or equal to 20 μeq/g, a content of acid chain ends of between 44and 100 μeq/g, and a content of unreactive chain ends of greater than or equal to 20 μeq/g.