THERMOPLASTIC RESIN COMPOSITION

摘要

PURPOSE:To prevent the generation of silver streak of a thermoplastic resin composition in high-temperature molding, without lowering the heat resistance and impact strength of the molded article, by mixing a specific fine gamma-alumina powder to a styrene-based thermoplastic resin. CONSTITUTION:100pts.wt. of a styrene-based thermoplastic resin is compounded with 0.5-3pts.wt., preferably 1.5-2pts.wt. of fine gamma-alumina powder having an average particle diameter of <=mu, and further with 0.1-0.5pts.wt. of a high-boiling plasticizer having a boiling point of >=300 deg.C, preferably butyl benzyl phthalate.