Patent ID: 9611356
Date: 2017-04-04
CPC Classifications: C08G,C08L

Claim:
1. A copolymer polyamide obtained by melt polymerizing at a temperature of 250° C. to 350° C.: (a) at least one alicyclic dicarboxylic acid; (b) one diamine having 8 or more carbon atoms; and (c) at least one copolymer component selected from the group consisting of the following (c-1) to (c-3): the copolymer polyamide having a trans isomer ratio of a portion derived from the (a) alicyclic dicarboxylic acid in the copolymer polyamide of 70 to 80 mol %, and satisfying the following conditions (1) to (3): (1) in differential scanning calorimetry based on JIS-K7121, a difference (T (2) a ratio between the number of carbon atoms and the number of amide groups (carbon atom number/amide group number) is 8 or more; and (3) in differential scanning calorimetry based on JIS-K7121, a difference (T