| abstract |
PROBLEM TO BE SOLVED: To provide a rubber-reinforced styrene resin composition excellent in color tone, HR dispersibility, physical property balance between impact resistance and rigidity, and an effective production method thereof. SOLUTION: A vinyl monomer (a) is continuously bulk polymerized to produce a vinyl (co) polymer (A), and then grafted to a molten vinyl (co) polymer (A). In the method of continuously producing a thermoplastic resin composition by side-feeding the polymer (B), melt-mixing, water from the graft copolymer (B) feed conveyance unit to the graft copolymer (B). Is separately added in an amount of 0.01 to less than 5% by weight, and a method for producing a thermoplastic resin composition. . [Selection figure] None |