B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
18/646
B32B 27/08 (2006.01) B29C 45/14 (2006.01) B32B 31/00 (1990.01)
Patent
CA 1311891
72689-11 ABSTRACT OF THE DISCLOSURE Disclosed is a multilayered molding comprising a base molding body made of a synthetic resin and a surface layer on the base molding body. The surface layer contains a sheet or film formed mainly of a thermoplastic elastomer which is a partially crosslinked substance obtained from a polyolefin resin and an ethylene-C3-14-.alpha.-olefin copolymer rubber, a mixture of a polyolefin resin and a partially crosslinked ethylene/C3-14-.alpha.- olefin copolymer rubber or a combination thereof. The copolymer rubber can be an ethylene/C3-14-.alpha.-olefin/diene ternary copolymer. In a preferred form, the surface layer is formed of (1) an outer layer made of the thermoplastic elastomer, (2) an intermediate foamed layer formed of a flexible foamed synthetic resin; and (3) a protection film layer between the base molding body and the intermediate foamed layer. Also disclosed are methods manufacturing the multilayered molding. One of such methods comprises (a) preheating the sheet or film made of only (1) or a laminated sheet or film made of (1), (2) and (3), setting and bringing the sheet or film into contact with an inner surface of a cavity of a mold, clamping the mold, and injecting a fluidized and plasticized synthetic resin in the cavity. Another method comprises preheating the sheet or film made of only (1) or a laminated sheet or film made of (1), (2), and (3), setting and bringing the sheet or film into an inner surface of a cavity of a mold, introducing a fluidized and plasticized resin in the cavity while the sheet or film is in contact with the inner surface and then clamping the mold.
589314
Jimbo Naoaki
Shimizu Shizuo
Uchiyama Akira
Mitsui Chemicals Incorporated
Smart & Biggar
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