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    • 15. 发明授权
    • Weatherable styrenic film structures with intermediate tie layer and
laminates thereof
    • 耐候性苯乙烯薄膜结构与中间粘结层及其层压材料
    • US5334450A
    • 1994-08-02
    • US886659
    • 1992-05-20
    • Vincent S. ZabrockiRobert H. Kelch
    • Vincent S. ZabrockiRobert H. Kelch
    • B32B27/08
    • B32B27/08Y10T156/1002Y10T428/26Y10T428/31692Y10T428/31696Y10T428/31699Y10T428/31909Y10T428/31913
    • A weatherable film for lamination to a non-weatherable substrate, including, for example a three-layer film structure including:at least one first surface layer of a weatherable polymer comprising (a) AES, ASA, SAN or mixtures thereof or (b) any of the polymers of (a) blended with PVC, CPE, aliphatic polyurethanes or saturated styrenic block copolymers; said layer having a 1 percent secant modulus of greater than about 150,000 psi;at least one second intermediate layer being a tie layer underlying the weatherable layer, said intermediate tie layer being adjacent to and adhered to the weatherable layer, said intermediate tie layer having a modulus of less than about 150,000 psi; said tie layer adherable to at least a third underlying layer; andat least one third layer underlying the tie layer, said third layer adjacent to and adhered to the tie layer said third layer having a modulus of less than about 150,000 psi.
    • 一种用于层压到非耐候性基底的耐候性薄膜,包括例如三层薄膜结构,其包括:耐候性聚合物的至少一个第一表面层,其包含(a)AES,ASA,SAN或其混合物,或(b) (a)与PVC,CPE,脂族聚氨酯或饱和苯乙烯嵌段共聚物共混的任何聚合物; 所述层具有大于约150,000psi的1%正割模量; 至少一个第二中间层是位于耐候层下面的连接层,所述中间粘结层邻近并粘附到耐候层,所述中间粘结层具有小于约150,000psi的模量; 所述连接层可粘附于至少第三下层; 以及连接层下面的至少一个第三层,所述第三层与所述粘结层相邻并且粘附到所述粘结层上,所述第三层的模量小于约150,000psi。