| 发明名称 |
POLYPROPYLENE FOAM SHEETS. |
| 摘要 |
<p>A thermoformable, rigid or semi-rigid polypropylene foam sheet having a smooth surface and a uniform cell structure and a density of at least 2.5 lbs/ft3 is prepared by extruding a mixture of a nucleating agent, a physical blowing agent and a polypropylene resin having a high melt strength and high melt elasticity.</p> |
| 申请公布号 |
EP0520028(B1) |
申请公布日期 |
1995.05.17 |
| 申请号 |
EP19910906914 |
申请日期 |
1991.03.13 |
| 申请人 |
THE JAMES RIVER CORPORATION |
发明人 |
GAYLORD, NORMAN, G.;KATZ, LEON;PARK, JOHN, P. |
| 分类号 |
B29C44/00;B29C51/10;B29C59/00;B29K23/00;B29K105/04;B29L7/00;B29L9/00;B29L22/00;B29L31/00;B32B5/18;B32B27/32;B65D65/02;C08F8/00;C08F110/06;C08J9/04;C08J9/12;C08J9/14;(IPC1-7):C08J9/12;C08J5/18;C08L23/12 |
主分类号 |
B29C44/00 |
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