Patent ID: 6565986
Filing Date: 2003-05-20
Classification: B32B,C08L,Y10T

Abstract:
A sheet comprised of:(1) a substrate comprised of an olefinic thermoplastic elastomer comprising an olefinic resin and an olefinic copolymer rubber, wherein when a grained sheet made of said elastomer is subjected to a male vacuum forming at least at a point of sheet temperature within the range of 130-150Â° C., using a testing metal mold as shown in FIG. 1(a) and FIG. 1(b), which metal mold has a ridge 3 protruding from the flat mold face 2 in the dimension that w1 and w5 are both 5 cm, w2 and w4 are both 2.5 cm, w3 is 15 cm and h1 is 3 cm, the grain retention rate of said sheet made of said elastomer, as expressed by the proportion of the grain depth of the sheet retained after being subjected to the male vacuum forming relative to the grain depth before being subjected to the male vacuum forming, meets the relation defined by the following inequality (1) % retention of grain&gE;100âˆ’2.0Ã—(Tâˆ’120)â€ƒâ€ƒ(1) â€ƒin which T represents the sheet temperature (Â° C.) of said grained sheet, wherein the male vacuum forming is performed at the temperature T of said grained sheet within the range from 130Â° C. to 150Â° C.; and (2) coated thereon a top coat comprised of a material selected from the group consisting of polyurethane resin, saturated polyester resin, acrylate resin, polyvinyl chloride resin, and isocyanate resin.