COPOLYMER OF POLY (4,7-DIOXADECAMETHYLENE ADIPAMIDE)-PLYCAPROLACTAM CONTAINING TEREPHTHALIC ACID RESIDUES

摘要

Method of producing copolymers intended to make fibers, particularly to produce poly (4,7-dioxadecamelitenadipamide) -policaprolactam copolymers, containing terephthalic acid, characterized in that it comprises: a) jointly incorporating salts of ** (Formula 01) ** b) heating the salts to form a random copolymer; and c) jointly incorporating the random copolymer and the polycaprolactam in fusion at a temperature comprised between the highest of its melting points and the lowest of its decomposition temperatures, such being the relationship between the temperature of joint fusion incorporation and the time during which applies to avoid the formation of random sequences and a copolymer having a molecular weight of about 5,000-100,000 and the following repetitive structural formula is formed: ** (Formula 02) ** in which X is within the range from about 97% by weight to about 87% by weight of the bivalent radical of - (CH2) 4- and the remainder is paraphenylene; y = 4-200 z = 4-200. (Machine-translation by Google Translate, not legally binding)