Thermotropic copolyesteramide, process for its preparation and utilization.

摘要

A thermotropic copolyesteramide, with a nematic structure of the liquid crystalline phase within a desired temperature range of the mesophase, contains a unit derived from: (a) a saturated alpha , omega -dicarboxylic acid; (b) 4,4 min -dihydroxydiphenyl; (c) p-aminobenzoic acid; (d) 2,6-dihydroxynaphthoic acid. A copolyesteramide of this type exhibits improved characteristics, especially in regard to its elastic modulus and tensile strength, when used as a self-reinforced material or as a reinforcement material for traditional thermoplastic polymers.