| 摘要 |
The present invention relates to a white coloring laser-marking thermoplastic resin composition, comprising: (A) a rubber-reinforced thermoplastic resin; (B) a methacrylic resin obtained by polymerizing from more than 90% by mass to 100% by mass of a methacrylic acid ester (bl) with from 0% by mass to less than 10% by mass of other vinyl-based monomer (b2) copolymerizable with the methacrylic acid ester; (C) a maleimide-based (co)polymers excluding the component (B), an aromatic polycarbonate resin or mixture thereof; and (D) a black-based substance, said components (A), (B) and (C) being contained in amounts of 10 to 90% by mass, 9 to 65% by mass and 1 to 81% by mass, respectively, and the component (D) being contained in an amount of 0.01 to 5 parts by mass based on 100 parts by mass of (A)+(B)+(C).
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