发明名称 |
Foamed moulded articles having areas of different density, and process and moulding tool for their preparation. |
摘要 |
Mouldings made from polyolefin particle foams having a mean density of from 0.015 to 0.100 g/cm<3> and containing at least two different regions whose densities differ by from 0.005 to 0.030 g/cm<3>, where the transition zone between the different density regions has a thickness of not more than 25 mm. |
申请公布号 |
EP0492201(A2) |
申请公布日期 |
1992.07.01 |
申请号 |
EP19910120866 |
申请日期 |
1991.12.05 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
HAARDT, UDO;TATZEL, HERMANN |
分类号 |
B29C44/00;B29C44/04;B29C44/44;B29K23/00;B29K105/04;B32B5/32;C08J9/232;C08J9/33;C08J9/34;F16H25/06 |
主分类号 |
B29C44/00 |
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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