| 摘要 |
PROBLEM TO BE SOLVED: To obtain a heat-resistant ABS-based resin having excellent strength and appearance in producing the heat-resistant ABS (acrylonitrile-butadiene-styrene)-based resin from an ABS-based resin and a specific master batch resin composition by expanding condition width of a molding condition in extrusion and molding of obtained pellets. SOLUTION: The master batch resin composition for improving heat resistance of a resin is a resin composition which comprises 40-60 mass % of an aromatic vinyl-maleimide-based copolymer (a) having 100,000-160,000 weight-average molecular weight, 20-60 mass % of an ABS-based graft copolymer (b), 0-40 mass % of an AS-based copolymer (c) and 0.5-3 mass % of a plasticizer (d) having 50-150°C melting point and has 100 mass % of the total of the components (a)-(d). The resin composition has 135-145°C glass transition temperature of a high-temperature side. COPYRIGHT: (C)2005,JPO&NCIPI
|
