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    • 1. 发明申请
    • THERMOPLASTIC COMPOSITION HAVING IMPROVED SCRATCH RESISTANCE, AND ARTICLES FORMED THEREFROM
    • 具有改进的耐刮擦性的热塑性组合物及其形成的制品
    • WO2008002734A2
    • 2008-01-03
    • PCT/US2007069350
    • 2007-05-21
    • GEN ELECTRICLENS JAN-PLEUNVAN DE GRAMPEL ROBERT DIRKSHEN DAKE
    • LENS JAN-PLEUNVAN DE GRAMPEL ROBERT DIRKSHEN DAKE
    • C08L69/00C08L69/005C08L2666/18
    • A thermoplastic composition comprises A) 25 to 95 parts by weight of a first polycarbonate consisting essentially of i) 25 to 100 mole percent of a first carbonate unit comprising an alkyl-substituted bisphenol carbonate unit, ii) 0 to 75 mole percent of a second carbonate unit where the first and second carbonate units are not identical, and the sum of the mole percentages of the first and second carbonate units in the first polycarbonate is 100 mole percent; B) 5 to 75 parts by weight of a polyester- polycarbonate where the molar ratio of carbonate unit to arylate ester unit is 95:5 to 10:90; and C) 0 to 65 parts by weight of a second polycarbonate, where the first polycarbonate and second polycarbonate are not identical, and the sum of the parts by weight of the first polycarbonate, the polyester-polycarbonate, and the second polycarbonate is 100 parts by weight.
    • 热塑性组合物包含A)25至95重量份的第一聚碳酸酯,其基本上由以下组成:i)25至100摩尔%的包含烷基取代的双酚碳酸酯单元的第一碳酸酯单元,ii)0至75摩尔%的第二 碳酸酯单元,其中第一和第二碳酸酯单元不相同,第一和第二碳酸酯单元在第一聚碳酸酯中的摩尔百分比之和为100摩尔%; B)5至75重量份的碳酸酯单元与芳基酯单元的摩尔比为95:5至10:90的聚酯 - 聚碳酸酯; 和C)0至65重量份的第二聚碳酸酯,其中第一聚碳酸酯和第二聚碳酸酯不相同,并且第一聚碳酸酯,聚酯 - 聚碳酸酯和第二聚碳酸酯的重量份之和为100份 重量。