Poly(butylene terephthalate)

Abstract

Abstract Major Applications Molding plastic, molecular component of polyether ester thermoplastic block copolymer elastomer, fiber and plastic forming, used in tooth and paint brush and in bristles and filler fabrics. Properties of Special Interest Mostly synthesized as flexible semi-crystalline thermoplastic, PBT has outstanding resilience and toughness. High toughness and resilience is due to improved chain flexibility derived from the four methylene units. Used in thermoplastic matrix composites for gears, machine parts, small pump housings, and insulators.