Patent ID: 6150012
Filing Date: 2000-11-21
Classification: B32B,Y10S,Y10T

Abstract:
A white film to be laminated to a metal surface, comprising first and second layers which are laminated in the arrangement of second layer/first layer/second layer,whereinthe first layer is made of a composition composed of 80-40 wt % polyester which, in turn, is composed of 100-75 mol % ethylene terephthalate unit and 0-25 mol % ethylene isophthalate unit, these units adding up to 100 mol %, and 20-60 wt % titanium oxide mixed with said polyester so that the total adds up to 100 wt %,the second front and back layers are made of a composition composed of not less than 80-100 wt % polyester which, in turn, is composed of 94-70 mol % ethylene terephthalate unit, 5-25 mol % ethylene isophthalate unit and 1-5 mol % diethylene tere(iso)phthalate unit, these units adding up to 100 mol %, and less than 20 wt % titanium oxide mixed with said polyester so that the total adds up to 100 wt %,said film being a biaxially stretched film,the amount of titanium oxide contained in said film being 20-50 wt % ; andsaid titanium oxide particles having a diameter of 0.1-0.5 .mu.m.