发明名称 |
Composite material having polypropylene foam layer |
摘要 |
<p>A composite material having a skin layer, an intermediate, cushioning layer provided on one side of the skin layer, and a backing layer provided on the cushioning layer, wherein the backing layer is made of a non-crosslinked polypropylene resin foam and having a melting point MB in the range of 130-170 DEG C, wherein the cushioning layer is a crosslinked polypropylene resin foamed sheet having a gel fraction of 20-70 % by weight. The cushioning layer has an endothermic peak in DSC curve at a peak temperature of PC which is in the range of 130-170 DEG C and which is not smaller than (MB - 15) DEG C but not greater than (MB + 10) DEG C. The endothermic peak has such an area at temperatures higher than MB that corresponds to a calorific value in the range of 3-30 J/g. The backing layer may be formed by expansion molding of expanded polypropylene particles within a mold cavity in which a laminate of the skin layer and the cushioning layer is placed in position.</p> |
申请公布号 |
EP0841155(B1) |
申请公布日期 |
2001.03.14 |
申请号 |
EP19970308950 |
申请日期 |
1997.11.07 |
申请人 |
JSP CORPORATION |
发明人 |
SHIOYA, SATORU;AOKI, TAKESHI;IWASAKI, SATOSHI;TOKORO, HISAO |
分类号 |
B60R13/02;B29C39/10;B29C44/00;B29C44/14;B29K23/00;B29K105/04;B29L9/00;B29L31/58;B32B5/18;(IPC1-7):B32B5/18;B60R13/00 |
主分类号 |
B60R13/02 |
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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