CO-DRAWABLE COMPOSITION OF PVDF, CO-DRAWABLE FILMS OF PVDF AND SUBSTRATES COATED WITH PVDF FILM

摘要

Composition (I) coextrudable with polyvinylidene fluoride (PVDF) comprises 20-40% PVDF, 40-60% polymethyl methacrylate, 5-18% acrylic elastomer and 1-4% UV absorber. Independent claims are also included for: (1) coextruded films comprising a layer of (I) and a base layer comprising 50-100% polyvinylidene fluoride (PVDF) and 0-50% polymethyl methacrylate (PMMA); (2) coextruded films comprising a layer of (I), a middle layer comprising 50-90% PVDF and 10-50% PMMA, and an outer layer comprising 75-100% PVDF and 0-25% PMMA; (3) substrates covered with a film as above with (I) facing the substrate.Composition (I) coextrudable with polyvinylidene fluoride (PVDF) comprises 20-40% PVDF, 40-60% polymethyl methacrylate, 5-18% acrylic elastomer and 1-4% UV absorber. Independent claims are also included for: (1) coextruded films comprising a layer of (I) and a base layer comprising 50-100% polyvinylidene fluoride (PVDF) and 0-50% polymethyl methacrylate (PMMA); (2) coextruded films comprising a layer of (I), a middle layer comprising 50-90% PVDF and 10-50% PMMA, and an outer layer comprising 75-100% PVDF and 0-25% PMMA; (3) substrates covered with a film as above with (I) facing the substrate.