| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a clear multilayer film that is excellent in impact resistance, weather resistance, contamination resistance and adhesion or the like, and that is used for covering synthetic surfaces. <P>SOLUTION: The exposed layer is primarily a polymer blend of a fluorine substituted olefin polymer, such as polyvinylidene fluoride, with an acrylic polymer. The buffer layer is an impact modified acrylic polymer, ethylene vinyl acetate polymer or metallocene catalyzed polyethylene and having an elastic modulus below about 30,000 psi (207 MPa). The buffer layer should be substantially free of all fluorinated polymers. The multilayer film 2 can have an optional additional thermally adhesive layer of a blend of a fluorine substituted olefin polymer with an acrylic polymer. The multi layer film 2 offers superior protection to such substrates as outdoor building siding, vehicle body panels, and signs from stains, weather conditions, and especially impact damage. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
