发明名称
摘要 PROBLEM TO BE SOLVED: To obtain a sheet having an excellent surface gloss even in the case of thermoforming it by reducing a drawdown at the time of molding and incorporating mold adhesive properties for sufficiently closely adhering to a mold at the time of molding and uniform moldability for making a molding thickness uniform after the molding in the case of a vacuum molding without accompanying with a pneumatic pressure. SOLUTION: The laminated sheet comprises a layer (A) made of a composition containing 100 pts.wt. of a crystalline polypropylene and 3 to 100 pts.wt. of a low crystalline polyolefin, and a layer (B) made of a propylene random copolymer containing 99 mol.% or more of a monomer unit based on a propylene homopolymer and/or propylene and laminated on the layer (A). The sheet also comprises a polypropylene sheet (C) and a laminated polypropylene film having 0.1 to 3.5 kgf/mm<2> of a tensile stress at 120 deg.C in a flowing direction of the film measured by a thermomechanical analysis under the condition of 100% of an elongation in tension and a direction perpendicular to the flowing direction of the film and laminated at least on one side surface of the sheet (C). In this case, the layer (B) becomes a front surface layer.
申请公布号 JP3432400(B2) 申请公布日期 2003.08.04
申请号 JP19970292292 申请日期 1997.10.24
申请人 发明人
分类号 B65D65/40;B29C51/10;B29C55/12;B29K23/00;B29L7/00;B29L9/00;B32B27/00;B32B27/32;C08L23/10;(IPC1-7):B32B27/32 主分类号 B65D65/40
代理机构 代理人
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