| 摘要 |
PROBLEM TO BE SOLVED: To provide a copolymer resin composition minimized in coloring, less prone to generate brown or black colored foreign matters in manufacturing and molding. SOLUTION: This copolymer composition is obtained by copolymerizing a styrenic based monomer and one or more kinds of monomers selected from a (meth)acrylate based monomer, (meth)acrylic acid, (meth)acrylonitrile in the presence of 4,6-bis(octylthiomethyl)-o-cresol, including <=1,000 ppm of the remaining comonomers and the invention includes a method of manufacturing the resin composition.
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