SURFACE-TREATMENT OF TALC, SURFACE-TREATED TALC, AND RESIN COMPOSITION

摘要

PURPOSE: To obtain a surface-treated talc having an excellent affinity even for a lowly polar resin and being useful for obtaining a resin composition improved in mechanical properties by coating powdery talc with a specified polymer. ;CONSTITUTION: Powdery talc is coated with a polymer obtained by polymerizing a (meth)acrylic ester, desirably at least one member selected from butyl acrylate, decyl (meth)acrylate, dodecyl (meth)acrylate, hexadecyl (meth)acrylate and hexyl methacrylate, in the presence of a polymerization initiator desirably selected between sulfurous acid and 2,2'-azobis-(isobutyroamidine) hydrochloride. It is desirable that the the powdery talc used has a mean particle diameter of 20-0.05μm.;COPYRIGHT: (C)1995,JPO