METHODS FOR SYNTHESIZING PULPS AND SHORT FIBERS CONTAINING POLYBENZAZOLE POLYMERS

摘要

Pulps and short fibers containing polybenzoxazole and/or polybenzothiazole or copolymers thereof can be synthesized by freezing the wet fiber straight from the coagulation bath without drying, and chopping or grinding the frozen fiber to the desired size and degree of fibrillation.