Impact modified polybutylene terephthalate.

摘要

The invention provides a polybutylene terephthalate composition which contains an impact modifier in an impact modifying amount, wherein the impact modifier is a synergistic mixture of (1) an acrylonitrile and butadiene unit-containing polymer and (2) a terpolymer of (a) ethylene, (b) a lower alkylacrylate and (c) a monomer which contains a heterocycle containing one oxygen atom as the hetero-atom.