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    • 8. 发明申请
    • Polycarbonate compositions with thin-wall flame retardance
    • 具有薄壁阻燃性的聚碳酸酯组合物
    • US20050182165A1
    • 2005-08-18
    • US10771589
    • 2004-02-03
    • Shiping MaThomas EbelingShrish Rane
    • Shiping MaThomas EbelingShrish Rane
    • C08K3/00C08K3/34C08K5/41C08K5/49C08K5/52C08K5/53C08L83/04C08L83/10
    • C08L83/10C08K3/016C08K5/41C08K5/52C08K5/53C08L2666/28C08L2666/54
    • Polycarbonate compositions containing a specific combination of additives achieve desirable flame retardance characteristics when used in thin wall polycarbonate articles. These compositions contain a polycarbonate/siloxane component, containing a polycarbonate siloxane copolymer, or a mixture of a polycarbonate siloxane copolymer and polycarbonate resin; a mineral filler; and a flame retardant. The composition contains at least 50% by weight of polycarbonate when the polycarbonate of the polycarbonate siloxane copolymer and any polycarbonate resin (linear or branched) are considered together; and the polycarbonate siloxane copolymer and the mineral filler are present in amounts effective to achieve a flex modulus of 29,000 kg/cm3 or greater, for example 30,000 kg/cm3 or greater, good flex-fold strength and good impact strength, for example a room temperature Notched Izod Impact Strength of 25 kgf-cm/cm or greater. The composition also includes a flame retardant to enable the composition to obtain a UL94 rating of V0 at test thicknesses of 1.2 mm.
    • 含有特定组合添加剂的聚碳酸酯组合物在用于薄壁聚碳酸酯制品时可获得所需的阻燃特性。 这些组合物含有含有聚碳酸酯硅氧烷共聚物的聚碳酸酯/硅氧烷组分,或聚碳酸酯硅氧烷共聚物和聚碳酸酯树脂的混合物; 矿物填料; 和阻燃剂。 当聚碳酸酯硅氧烷共聚物的聚碳酸酯和任何聚碳酸酯树脂(直链或支链)一起被考虑时,该组合物含有至少50重量%的聚碳酸酯; 聚碳酸酯硅氧烷共聚物和矿物填料以有效实现29,000kg / cm 3或更大的挠曲模量的量存在,例如30,000kg / cm 3或更高 更好的弯曲强度和良好的冲击强度,例如室温缺口伊佐德冲击强度为25kgf-cm / cm以上。 该组合物还包括阻燃剂,以使组合物在1.2mm的测试厚度下获得V0的UL94等级。
    • 9. 发明授权
    • Polycarbonate compositions with thin-wall flame retardance
    • 具有薄壁阻燃性的聚碳酸酯组合物
    • US07232854B2
    • 2007-06-19
    • US10771589
    • 2004-02-03
    • Shiping MaThomas EbelingShrish Rane
    • Shiping MaThomas EbelingShrish Rane
    • C08K5/523C08K3/34
    • C08L83/10C08K3/016C08K5/41C08K5/52C08K5/53C08L2666/28C08L2666/54
    • Polycarbonate compositions containing a specific combination of additives achieve desirable flame retardance characteristics when used in thin wall polycarbonate articles. These compositions contain a polycarbonate/siloxane component, containing a polycarbonate siloxane copolymer, or a mixture of a polycarbonate siloxane copolymer and polycarbonate resin; a mineral filler; and a flame retardant. The composition contains at least 50% by weight of polycarbonate when the polycarbonate of the polycarbonate siloxane copolymer and any polycarbonate resin (linear or branched) are considered together; and the polycarbonate siloxane copolymer and the mineral filler are present in amounts effective to achieve a flex modulus of 29,000 kg/cm3 or greater, for example 30,000 kg/cm3 or greater, good flex-fold strength and good impact strength, for example a room temperature Notched Izod Impact Strength of 25 kgf-cm/cm or greater. The composition also includes a flame retardant to enable the composition to obtain a UL94 rating of V0 at test thicknesses of 1.2 mm.
    • 含有特定组合添加剂的聚碳酸酯组合物在用于薄壁聚碳酸酯制品时可获得所需的阻燃特性。 这些组合物含有含有聚碳酸酯硅氧烷共聚物的聚碳酸酯/硅氧烷组分,或聚碳酸酯硅氧烷共聚物和聚碳酸酯树脂的混合物; 矿物填料; 和阻燃剂。 当聚碳酸酯硅氧烷共聚物的聚碳酸酯和任何聚碳酸酯树脂(直链或支链)一起被考虑时,该组合物含有至少50重量%的聚碳酸酯; 聚碳酸酯硅氧烷共聚物和矿物填料以有效实现29,000kg / cm 3或更大的挠曲模量的量存在,例如30,000kg / cm 3或更高 更好的弯曲强度和良好的冲击强度,例如室温缺口伊佐德冲击强度为25kgf-cm / cm以上。 该组合物还包括阻燃剂,以使组合物在1.2mm的测试厚度下获得V0的UL94等级。