Patent ID: 6852377
Filing Date: 2005-02-08
Classification: C09J,Y10T

Abstract:
1. A self-adhesive protective film for the surface protection of painted vehicles or vehicle parts, comprising a single-ply or multi-ply backing layer and a self-adhesive layer, wherein the self-adhesive composition comprises 100 parts by weight of a component A comprising a vinyl acetate copolymer or a mixture of two or more vinyl acetate copolymers having a vinyl acetate content of from 60 to 75% by weight and a maximum of the loss factor tan δ, measured by means of DMTA and determined at an angular frequency ω=1 rad/s, of <0° C., from 5 to 80 parts by weight of a component B comprising a vinyl acetate copolymer or a mixture of two or more vinyl acetate copolymers of different molecular weight, having a vinyl acetate content of from 75 to 95% by weight and a maximum of the loss factor tan δ, measured by means of DMTA and determined at an angular frequency ω=1 rad/s, of ≧−5° C., and from 5 to 80 parts by weight of a component C comprising a vinyl acetate copolymer or a mixture of two or more vinyl acetate copolymers of different molecular weight, having a vinyl acetate content of ≦70% by weight, which at the same time has a vinyl acetate content of at least 5% by weight below the vinyl acetate content of component A.