发明授权
- 专利标题： Foamed microbeads and a process for their preparation
- 专利标题（中）： 发泡微珠及其制备方法
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申请号： US255185申请日： 1988-10-07
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公开(公告)号： US4882362A公开(公告)日： 1989-11-21
- 发明人: Norbert Weimann , Manfred Dahm , Ulrich Nehen , Walter Schafer
- 申请人： Norbert Weimann , Manfred Dahm , Ulrich Nehen , Walter Schafer
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3710607 19870331
- 主分类号： C09K3/00
- IPC分类号： C09K3/00 ; B01J19/16 ; C08G18/00 ; C08G18/08 ; C08G18/32 ; C08G18/79 ; C08J9/28
摘要：
Foamed microbeads with a shell and an encased core are characterized in that the shell is a reaction product of an NCO-containing carbodiimide and a polyamine, and the core is at least partly filled with a polymeric carbodiimide or its reaction product with a polyamine, and in that the foamed microbeads are self-supporting and can be laden with hydrophilic and if appropriate hydrophobic liquids.
公开/授权文献
- US6051712A Piperidine derivatives having renin inhibiting activity 公开/授权日：2000-04-18
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