- 专利标题: Skin-covered propylene resin foamed molded article
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申请号: EP08008223.3申请日: 2008-04-30
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公开(公告)号: EP1987934B1公开(公告)日: 2018-09-26
- 发明人: Tokiwa, Tomoo , Tsuchida, Shohei , Naito, Masato
- 申请人: JSP CORPORATION
- 申请人地址: 4-2, Marunouchi 3-chome, Chiyoda-ku Tokyo 100-0005 JP
- 专利权人: JSP CORPORATION
- 当前专利权人: JSP CORPORATION
- 当前专利权人地址: 4-2, Marunouchi 3-chome, Chiyoda-ku Tokyo 100-0005 JP
- 代理机构: Wagner Albiger & Partner Patentanwälte mbB
- 优先权: JP2007121721 20070502
- 主分类号: B29C44/14
- IPC分类号: B29C44/14 ; B29C44/18 ; B29C44/44 ; C08J9/228 ; C08J9/232 ; B29C49/04 ; B29K105/04
摘要:
The present invention pertains to a skin-covered foamed molded article (22) of expanded propylene resin beads having excellent lightness in weight, mechanical properties and appearance. The present invention provides a skin-covered foamed molded article (22) of propylene resin expanded beads, with the skin covering substantially the entire surface of the molded article (20) of the expanded beads. The skin, within which the molded article (20) of expanded propylene resin beads is placed, is a propylene resin hollow molded body obtained by blow molding. A base resin of which the skin is formed comprises a propylene resin having a partial heat of fusion in a temperature range between 80 and 140°C of at least 15 J/g and a ratio of the partial heat of fusion to a total heat of fusion (partial heat of fusion/total heat of fusion) of at least 0.2 as measured by heat flux differential scanning calorimetry. The skin has a thickness in the range of 0.3 to 3.5 mm, and the molded article (20) of expanded propylene resin beads has an apparent density in the range of 0.015 to 0.15 g/cm 3 . The skin is fuse-bonded to the molded article (20) of expanded beads, and the expanded beads from which the molded article (20) is formed are fuse-bonded to each other.
公开/授权文献
- EP1987934A3 Skin-covered propylene resin foamed molded article 公开/授权日:2010-10-20
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