发明授权
- 专利标题： Method for producing polymethacrylimide foams
- 专利标题（中）： 生产聚甲基丙烯酰胺泡沫的方法
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申请号： US10486361申请日： 2002-08-01
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公开(公告)号： US07169339B2公开(公告)日： 2007-01-30
- 发明人: Peter Stein , Hermann Seibert , Leonard Maier , Rainer Zimmermann , Wilfried Heberer , Werner Geyer
- 申请人： Peter Stein , Hermann Seibert , Leonard Maier , Rainer Zimmermann , Wilfried Heberer , Werner Geyer
- 申请人地址： DE Darmstadt
- 专利权人： Roehm GmbH & Co. KG
- 当前专利权人： Roehm GmbH & Co. KG
- 当前专利权人地址： DE Darmstadt
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, P.C.
- 优先权： DE10141757 20010829
- 国际申请： PCT/EP02/08569 WO 20020801
- 国际公布： WO03/020804 WO 20030313
- 主分类号： B29C44/02
- IPC分类号： B29C44/02 ; C08J9/00
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.
公开/授权文献
- US20040235973A1 Method of producing polymethacrylimide foams 公开/授权日：2004-11-25
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