发明授权
- 专利标题： Modified polyvinyl alcohol and a solid state process for modification of polyvinyl alcohol by free radical grafting
- 专利标题（中）： 改性聚乙烯醇和通过自由基接枝改性聚乙烯醇的固态方法
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申请号： US88991申请日： 1993-07-07
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公开(公告)号： US5340874A公开(公告)日： 1994-08-23
- 发明人: Amir Famili , Lori A. Vratsanos , Finn L. Marten
- 申请人： Amir Famili , Lori A. Vratsanos , Finn L. Marten
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： C08F8/00
- IPC分类号： C08F8/00 ; C08F16/06 ; C08F261/04 ; C08L29/02 ; C08L29/04
摘要：
A modified polyvinyl alcohol and a solid state process for producing modified polyvinyl alcohol wherein polyvinyl alcohol powder is sprayed with a sufficient amount of a solution of a polymerizable monomer to swell the polyvinyl alcohol powder but not dissolve it or form a slurry. The swollen polyvinyl alcohol powder is sprayed with a free radical source (an initiator) and the temperature is raised to initiate a reaction between polyvinyl alcohol and the polymerizable monomer.
公开/授权文献
- US6147225A Thiacrown ether compound 公开/授权日：2000-11-14
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