POLYAMIDES DERIVED FROM HEXAMETHYLENE DIAMINE, TEREPHTHALIC ACID, ISOPHTHALIC ACID AND A C5 TO C10 ALIPHATIC DIBASIC ACID

摘要

POLYAMIDES DERIVED FROM HEXAMETHYLENE DIAMINE,TEREPHTHALIC ACID, ISOPHTHALIC ACID AND AC5 TO C10 ALIPHATIC DIBASIC ACIDABSTRACT OF THE DISCLOSUREFiber-forming polymers are prepared from a mixtureof the hexamethylene diamine salts of terephthalic acid,isophthalic acid, and a small amount of at least one aliphaticdibasic acid (e.g. adipic acid) having from 5 to 12 carbonatoms. The polymers can be prepared in a batch autoclaveand extruded therefrom without cleaning the autoclave betweensuccessive runs.