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    • 4. 发明申请
    • POLYCARBONATE COMPOSITION WITH ENHANCED FLEX-FOLD PROPERTIES
    • 具有增强的弯曲性能的聚碳酸酯组合物
    • WO2005075549A1
    • 2005-08-18
    • PCT/US2005/002806
    • 2005-02-02
    • GENERAL ELECTRIC COMPANYMA, ShipingEBELING, ThomasRANE, Shrish
    • MA, ShipingEBELING, ThomasRANE, Shrish
    • C08K3/34
    • C08K3/34C08K3/346C08K2201/014C08L69/00
    • Polycarbonate compositions containing a specific combination of additives which achieve desirable flexural modulus and flex-fold characteristics are used in polycarbonate articles. These compositions contain a polycarbonate/siloxane component that includes a polycarbonate siloxane copolymer and optionally additional polycarbonate resin; and a mineral filler selected from wollastonite, clay, a combination of clay and talc and mixtures thereof. The composition contains at least 50% by weight of polycarbonate, and the polycarbonate siloxane copolymer and the mineral filler are present in amounts effective to achieve a flex modulus of 29,000 kg/cm 2 or greater, for example 30,000 kg/cm 2 or greater, good flex-fold strength and good impact strength. If desired, the composition may also include a flame retardant to enable the composition to obtain a UL94 rating of VO at test thicknesses of 1.2 mm.
    • 在聚碳酸酯制品中使用含有实现所需弯曲模量和挠曲折叠特性的添加剂的特定组合的聚碳酸酯组合物。 这些组合物含有聚碳酸酯/硅氧烷组分,其包括聚碳酸酯硅氧烷共聚物和任选的另外的聚碳酸 和选自硅灰石,粘土,粘土和滑石的组合的矿物填料及其混合物。 组合物含有至少50重量%的聚碳酸酯,并且聚碳酸酯硅氧烷共聚物和矿物填料以有效实现29,000kg / cm 2或更大的挠曲模量(例如30,000kg / cm 2)的量存在 >以上,弯曲强度好,冲击强度好。 如果需要,组合物还可以包括阻燃剂,以使组合物能够在1.2mm的测试厚度下获得UL的UL94等级。