Process for producing laminated film and laminated sheet
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United States of America Patent
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Jun 22, 1999
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app pub date -
Jan 13, 1997
filing date -
Sep 21, 1993
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Abstract
A process for producing an extrusion laminated film or sheet comprising a plastic substrate and a resin for extrusion laminating selected from the group consisting of polyethylene resins, polypropylene resins, ethylene-vinylester copolymer resins and ethylene-(metha)acrylate copolymer resins, comprising (A) a surface oxidizing step, (B) an ozone-treating step and (C) a pressurized laminating step as specified using no chemical primer.
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