| 摘要 |
PURPOSE:The titled composition excellent in a balance among flame retardancy, heat resistance, and mechanical properties, prepared by mixing a polyolefin and/ or a styrene resin with two specified compounds and an antimony oxide. CONSTITUTION:100pts.wt. polyolefin (e.g., PP) and/or styrene resin (e.g., ABS resin) are mixed with 1-30pts.wt. compound mainly consisting of repeating units of formula I (e.g., a homopolymer of tetrabromobisphenol A carbonate) having a specific viscosity of 0.015-1.0 (as determined in a solution of 0.70g of a sample in 100ml of tetrahydrofuran at 20 deg.C), 1-30pts.wt. compound mainly consisting of repeating units of formula II (wherein n is 1-5), e.g., a homopolymer of tribromostyrene) having a specific viscosity of 0.03-0.5, and 0-30pts.wt. antimony oxide. |
