FLAME RETARDANT POLYBUTYLENE TEREPHTHALATE COMPOSITION AND MOLDED PRODUCT

摘要

A flame retardant polybutylene terephthalate composition which has a high level of flame retardancy and, at the same time, is highly stable against hydrolysis and is suitable for use in electric and electronic components such as connectors and relay components. The flame retardant polybutylene terephthalate composition comprises 100 parts by weight of polybutylene terephthalate and, incoporated into the polybutylene terephthalate, 3 to 50 parts by weight of a brominated aromatic compound-based flame retardant and 1 to 30 parts by weight of an antimony oxide compound. The polybutylene terephthalate has a titanium content of more than 33 ppm and not more than 90 ppm in terms of atom, a terminal carboxyl group concentration of more than 10 µeq/g and not more than 30 µeq/g, and an intrinsic viscosity of more than 0.83 dl/g.