Flowability Improver for Engineering Plastics Thermoplastic Resin Compositions Containing the Same and Molded Articles of the Compositions

摘要

A flowability improver for engineering plastics which consists of a polymer (A) composed of 0.5 to 99.5% by mass of aromatic vinyl monomer units (a1), 0.5 to 99.5% by mass of (substituted) phenyl (meth)acrylate monomer units (a2), and 0 to 40% by mass of other monomer units (a3) (with the proviso that the total of the units (a1) to (a3) is 100% by mass) and having a weight-average molecular weight of 5000 to 15000. The flowability improver can improve engineering plastics in melt-flow characteristics (processability in molding) and chemical resistance without impairing the plastics in heat resistance, exfoliation resistance, transparency, and so on.