Rubbery polymer, graft copolymer, and thermoplastic resin composition

Abstract

The thermoplastic resin composition contains a graft copolymer produced using a rubbery polymer having a high gel content. A molded article is produced by molding the thermoplastic resin composition. A rubbery polymer (A) that is a product of polymerization of a raw material mixture contains an alkyl (meth)acrylate, a crosslinking agent (1) represented by Formula (1) below, and a hydrophobic substance. The amount of the hydrophobic substance is 0.1 to 10 parts by mass relative to 100 parts by mass of the total amount of the alkyl (meth)acrylate and the crosslinking agent (1). The rubbery polymer (A) has a gel content of 80% to 100%. CH2═CR1—CO—(X)—COCR1═CH2  (1) where X represents a diol residue selected from a polyalkylene glycol residue, a polyester diol residue, and a polycarbonate diol residue, and R1 represents H or CH3.

Dependencies are inferred from the claim text.