Patent ID: 6333094
Filing Date: 2001-12-25
Classification: A47B,B32B,B44C,Y10T

Abstract:
A multilayer thermoformable composite synthetic film, comprising:(1) at least one base layer comprising polyolefin and having a thickness of 100 to 500 .mu.m, which comprises, based on 100 parts by weight of polyolefin, from 0 to 90 parts by weight of (i) at least one inorganic and/or organic filler, pigment or filler-pigment mixture, (ii) at least one UV stabilizer and/or (iii) heat stabilizer and/or (iv) antioxidant, wherein the base layer comprises (a) at least one propylene copolymer containing ethylene and having a Vicat softening point VST/A/50 of from 110 to 130.degree. C. and a melt index MFR (230/2.16) of from 1 to 10 g/10 min, (b) at least one polyethylene, and (c) at least one polyethylene elastomer or polyethylene-containing elastomer;(2) at least one first intermediate bonding layer;(3) at least one polyester-containing layer comprising an amorphous polyester having a Vicat softening point VST/A/50 of from 60 to 90.degree. C.;(4) at least one bonding layer, adhesion-promoting layer or reactant layer arranged on the underside of the base layer; and(5) a surface-covering layer arranged on top of the film.