发明授权
- 专利标题: Water-swellable, hydrophilic polymer compositions
- 专利标题(中): 水溶胀性亲水性聚合物组合物
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申请号: US84941申请日: 1998-05-26
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公开(公告)号: US6107432A公开(公告)日: 2000-08-22
- 发明人: Fritz Engelhardt , Rudiger Funk , Norbert Herfert , Matthias Weismantel
- 申请人: Fritz Engelhardt , Rudiger Funk , Norbert Herfert , Matthias Weismantel
- 申请人地址: DEX
- 专利权人: BASF AG
- 当前专利权人: BASF AG
- 当前专利权人地址: DEX
- 优先权: DEX19722340 19970528
- 主分类号: A61F13/53
- IPC分类号: A61F13/53 ; A61L15/60 ; C08F2/44 ; C08F4/04 ; C08F4/34 ; C08F4/36 ; C08F20/00 ; C08F20/04 ; C08F251/00 ; C08G63/00
摘要:
The present invention relates to water-swellable, hydrophilic polymer compositions which can be prepared by free-radical (co)polymerization of one or more hydrophilic monomers in the presence of starch and/or chemically modified starch, wherein a free-radical initiator which forms three or more free radical sites per molecule is used.
公开/授权文献
- USD421458S Envelope for use with a non-impact printer 公开/授权日:2000-03-07
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