发明名称 |
Method for producing a laminated material. |
摘要 |
A method for producing a laminated material comprising a lower layer of highly-expanded plasticized polyvinyl chloride with cross-linking and a surface layer of thermoplastic resin sheet laminated on an upper surface of said lower layer, said method comprising; sufficiently heating and kneading raw materials for the lower layer except a cross-linking agent and a blowing agent mixing with the reacting groups in an extruder; adding the cross-linking agent and the blowing agent; heating and kneading the obtained material at or less a reacting temperature of the cross-linking agent and a decomposition temperature of the blowing agent to obtain a sheet; heating the sheet to cross-link and expand the sheet to form the lower layer of cross-linked highly-expanded plasticized polyvinyl chloride; and laminating the surface layer of the thermoplastic resin on the upper surface of the lower layer. The polyvinyl chloride resin is (A) a polyvinyl chloride resin having reacting groups in its molecules, or (B) a mixture of a polyvinyl chloride resin having no reacting groups in its molecules and a thermoplastic resin having reacting groups in its molecules. |
申请公布号 |
EP0308200(A2) |
申请公布日期 |
1989.03.22 |
申请号 |
EP19880308501 |
申请日期 |
1988.09.14 |
申请人 |
KYOWA LEATHER CLOTH CO., LTD. |
发明人 |
AKIMOTO, HIROFUMI;TAKEYAMA, SADAYUKI;HIKI, TOSHIMICHI;KONDO, MASAYUKI |
分类号 |
B32B5/18;B29C44/06;B29C69/00;B32B5/20;B32B27/08;B32B27/30;B32B37/15;C08J5/12;C08J9/00;C08J9/06;C08J9/10;C08J9/34 |
主分类号 |
B32B5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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