- 专利标题： Modified polyvinyl alcohol and process for producing the same
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申请号： US11816791申请日： 2005-08-29
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公开(公告)号： US10005867B2公开(公告)日： 2018-06-26
- 发明人: Satoshi Watanabe , Hirohisa Otake
- 申请人： Satoshi Watanabe , Hirohisa Otake
- 申请人地址： JP Tokyo
- 专利权人： Denki Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人： Denki Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2005-063395 20050308
- 国际申请： PCT/JP2005/015684 WO 20050829
- 国际公布： WO2006/095462 WO 20060914
- 主分类号： C08F222/06
- IPC分类号： C08F222/06 ; C08F216/06 ; C08F8/44 ; C08F222/14
摘要：
The present invention provides modified PVA having unsaturated double bonds derived from a specific monomer in the main chain of the molecule. A modified polyvinyl alcohol containing bond units of the formula (1) having double bonds in its molecular main chain: wherein each of X1 and X2 is a C1-12 lower alkyl group, a hydrogen atom or a metal atom, g is an integer of from 0 to 3, h is an integer of from 0 to 12, Y1 is a hydrogen atom or —COOM, and M is a hydrogen atom, an alkyl group or a metal atom.
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