POLY(BUTYLENE TEREPHTHALATE) RESIN COMPOSITION AND HYDROLYSIS RESISTANCE-IMPROVING AGENT.

摘要

Provided is a means for obtaining a poly(butylene terephthalate) resin composition that exhibits high fluidity when molten and excellent hydrolysis resistance. A carbodiimide compound (B) and a polyhydric hydroxyl group-containing compound (C) are added to a poly(butylene terephthalate) resin (A) having a terminal carboxyl group content of 30 meq/kg or lower. The polyhydric hydroxyl group-containing compound (C) that is used has a hydroxyl group value of 200 or higher. It is preferable for the poly(butylene terephthalate) resin (A) to have an intrinsic viscosity of 0.6 dL/g or higher.