COEXTRUDED, MULTILAYERED LAMINATED SHEET AND PROCESS FOR PREPARING PLASTIC MOLDING BY USING THE SAME

WIPO Patent Application WO/1997/046383

A1

A coextruded, multilayered laminated sheet characterized by comprising a colored layer (A) comprising a colorant-containing thermoplastic acrylic polymer and/or thermoplastic fluororesin, a layer (B) comprising a modified olefin polymer containing at least one functional group selected from the group consisting of carboxyl, acid anhydride, hydroxyl, and glycidyl groups, and a backup layer (C) comprising an olefin polymer, the layers (A), (B) and (C) being laminated on top of another in the order of (A), (B) and (C). A process for preparing a plastic molding characterized by laminating a colored layer (A) comprising a colorant-containing thermoplastic acrylic polymer and/or thermoplastic fluororesin, a layer (B) comprising a modified olefin polymer containing at least one functional group selected from the group consisting of carboxyl, acid anhydride, hydroxyl, and glycidyl groups, and a backup layer (C) comprising an olefin polymer on top of one another by multilayer coextrusion in the order of (A), (B) and (C) to prepare a sheet, thermoforming the sheet to prepare a preform having a three-dimensional shape, inserting the preform into an injection mold, and then injection molding an olefin polymer so as to come into contact with the backup layer (C).

ISHII IZUMI (JP)
YAMADA HITOSHI (JP)

PCT/JP1997/001908

December 11, 1997

June 05, 1997

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MITSUBISHI CHEM CORP (JP)
ISHII IZUMI (JP)
YAMADA HITOSHI (JP)

B29C45/14; B32B27/08; B32B37/00; B29C45/00; B29C48/00; B29C48/08; B29C51/00; (IPC1-7): B32B27/30; B32B27/32; B29C47/06; B29C69/00; B60R19/03; B60R13/04

JPH06234183A	1994-08-23
JPH08108448A	1996-04-30
JPH06182939A	1994-07-05

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