HIGHLY HEAT-RESISTANT AND WHOLLY AROMATIC THERMOTROPIC POLYESTER, SYNTHESIZING METHOD THEREOF, AND APPLICATION IN PRDUCING MOLDED ARTICLE, FILAMENT, AND FILM THERFROM

摘要

Thermotropic, fully aromatic polyesters which have been prepared by polycondensation of p-hydroxybenzoic acid, hydroquinone, 4,4-dihydroxydiphenyl, terephthalic acid and isophthalic acid and which contain specific amounts of the radicals of the compounds mentioned are distinguished by an excellent toughness, very high heat distortion temperature and good processability.