发明授权
- 专利标题： Method for producing multi-layer polyethylene resin foam sheet
- 专利标题（中）： 多层聚乙烯树脂发泡片的制造方法
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申请号： US13974738申请日： 2013-08-23
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公开(公告)号： US09592642B2公开(公告)日： 2017-03-14
- 发明人: Kazuhiko Morita , Hirotoshi Kakuta , Ryuichi Taniguchi
- 申请人： JSP Corporation
- 申请人地址： JP Tokyo
- 专利权人： JSP CORPORATION
- 当前专利权人： JSP CORPORATION
- 当前专利权人地址： JP Tokyo
- 代理机构： Oliff PLC
- 优先权： JP2012-201181 20120913
- 主分类号： B29C44/24
- IPC分类号： B29C44/24 ; B29D7/01 ; B32B5/20 ; B32B7/02 ; B32B27/06 ; B32B27/08 ; B32B27/32 ; C08L23/08 ; C08L23/14 ; C08L23/06 ; C08J9/00 ; C08J9/08 ; C08J9/12 ; B29K105/00 ; B29C47/00 ; B29K23/00 ; B29L9/00 ; B29C47/56 ; B29C47/06
摘要：
A method for producing a multi-layer foam sheet having a foam layer and a resin layer laminated on at least one side of the foam layer, includes coextruding a foamable molten resin composition which contains a low density polyethylene and a physical blowing agent and a molten resin composition which contains 80 to 20% by weight of a specific ethylene-propylene random copolymer and 20 to 80% by weight of a specific polyethylene resin so that the foamable molten resin composition forms the foam layer and the molten resin composition forms the resin layer.
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