发明名称 |
Method of producing polymethacrylimide foams |
摘要 |
The invention relates to an improved method for producing foamed material, especially poly(meth)acrylimide foams, which are foamed from polymer plates produced according to the casting method. The two-step method consists of a pre-heating step and at least one foaming step. The product obtained has a significantly smaller compressive strain, measured according to DIN 53425(ASMD 621), than prior art products. |
申请公布号 |
US2004235973(A1) |
申请公布日期 |
2004.11.25 |
申请号 |
US20040486361 |
申请日期 |
2004.03.01 |
申请人 |
STEIN PETER;SEIBERT HERMANN;MAIER LEONARD;ZIMMERMANN RAINER;HEBERER WILFRIED;GEYER WERNER |
发明人 |
STEIN PETER;SEIBERT HERMANN;MAIER LEONARD;ZIMMERMANN RAINER;HEBERER WILFRIED;GEYER WERNER |
分类号 |
C08J9/14;B29C44/08;B29C44/34;C08J9/04;(IPC1-7):B29C44/02 |
主分类号 |
C08J9/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|