发明授权
US5486564A High purity polyhydrogen silsesquioxane resin for electronic coatings
失效
用于电子涂料的高纯度聚氢倍半硅氧烷树脂
- 专利标题： High purity polyhydrogen silsesquioxane resin for electronic coatings
- 专利标题（中）： 用于电子涂料的高纯度聚氢倍半硅氧烷树脂
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申请号： US387697申请日： 1995-02-13
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公开(公告)号： US5486564A公开(公告)日： 1996-01-23
- 发明人: Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
- 申请人： Katsutoshi Mine , Takashi Nakamura , Motoshi Sasaki
- 申请人地址： JPX Tokyo
- 专利权人： Dow Corning Toray Silicone Company, Ltd.
- 当前专利权人： Dow Corning Toray Silicone Company, Ltd.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX4-338103 19921124
- 主分类号： C08G77/32
- IPC分类号： C08G77/32 ; C08G77/12 ; C08G77/36 ; C08L83/00
摘要：
Disclosed is a highly reproducible method for the molecular weight fractionation of polyhydrogen silsesquioxane that gives a very storage-stable polyhydrogen silsesquioxane having a freely selectable molecular weight. The method involves dissolving polyhydrogen silsesquioxane in active-hydrogen-free nonpolar solvent; adding an active-hydrogen-free polar solvent to the resulting solution in order to precipitate polyhydrogen silsesquioxane; and collecting the desired molecular weight fraction of polyhydrogen silsesquioxane.
公开/授权文献
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