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    • 59. 发明授权
    • Flame retardant and scratch resistant thermoplastic polycarbonate compositions
    • 阻燃和耐划伤热塑性聚碳酸酯组合物
    • US08674007B2
    • 2014-03-18
    • US11456953
    • 2006-07-12
    • Srinivas SiripurapuNaveen AgarwalJan Pleun Lens
    • Srinivas SiripurapuNaveen AgarwalJan Pleun Lens
    • C08L69/00C08L83/10C08L55/00C08K5/523
    • C08L69/00C08F265/04C08K5/0066C08K5/523C08L51/04C08L55/02C08L83/10C08F212/10C08L2666/24C08L2666/84C08L2666/02
    • A flame retardant thermoplastic composition comprising in combination a polycarbonate homopolymer or copolymer comprising repeat carbonate units having the following structure: wherein R1 and R2 are independently at each occurrence a C1-C4 alkyl, n and p are each an integer having a value of 1 to 4, and T is selected from the group consisting of C5-C10 cycloalkanes attached to the aryl groups at one or two carbons, C1-C5 alkyl groups, C6-C13 aryl groups, and C7-C12 aryl alkyl groups; an impact modifier, wherein the impact modifier comprises wherein the impact modifier comprises a rubber modified thermoplastic resin comprising a discontinuous elastomeric phase dispersed in a rigid thermoplastic phase, and wherein the impact modifier has a specific mean particle size and Q value; and a flame retardant. The compositions have excellent scratch resistance as well as an improved balance of physical properties such as impact strength and spiral flow, while at the same time maintaining their good flame performance.
    • 一种阻燃热塑性组合物,其组合包含聚碳酸酯均聚物或共聚物,其包含具有以下结构的重复碳酸酯单元:其中R 1和R 2在每次出现时独立地为C 1 -C 4烷基,n和p各自为具有1至 4,并且T选自与一个或两个碳上的芳基连接的C 5 -C 10环烷烃,C 1 -C 5烷基,C 6 -C 13芳基和C 7 -C 12芳基烷基; 抗冲改性剂,其中所述抗冲改性剂包括其中所述抗冲改性剂包括橡胶改性的热塑性树脂,其包含分散在刚性热塑性相中的不连续弹性体相,并且其中所述抗冲改性剂具有特定的平均粒度和Q值; 和阻燃剂。 组合物具有优异的耐刮擦性以及改善的物理性能的平衡,例如冲击强度和螺旋流,同时保持其良好的火焰性能。