| 摘要 |
<p>PURPOSE: To provide a multilayer laminate suited for an outdoor building material by laminating an upper layer containing a vinyl chloride polymer, a butyl acrylate rubber graft copolymer and titanium dioxide on a base layer containing a vinyl chloride polymer and a butadiene graft copolymer. CONSTITUTION: The coextruded multilayer laminate 10 includes a base layer 12 of a plastic resin composition containing a vinyl chloride polymer and a butadiene rubber graft copolymer and an upper layer 14 of a polymer composition containing the vinyl chloride polymer, a butyl acrylate rubber graft copolymer and titanium dioxide, the base layer 12 being connected to the upper layer 14. The preferred butyl acrylate rubber graft copolymer of the upper layer is such one as obtained by grafting 10-50 wt.% monomer selected from the group of vinyl aromatics, vinyl cyanide and alkyl methacrylate into 50-90 wt.% butyl acrylate rubber graft base of graft copolymer.</p> |
