发明授权
- 专利标题： Method of producing polyether resins using phase transfer catalysts
- 专利标题（中）： 使用相转移催化剂制备聚醚树脂的方法
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申请号： US199421申请日： 1980-10-22
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公开(公告)号： US4362857A公开(公告)日： 1982-12-07
- 发明人: Kazuya Yonezawa , Junichi Ishizu , Miyuki Matsuura
- 申请人： Kazuya Yonezawa , Junichi Ishizu , Miyuki Matsuura
- 申请人地址： JPX Osaka
- 专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人： Kanegafuchi Kagaku Kogyo Kabushiki Kaisha
- 当前专利权人地址： JPX Osaka
- 优先权： JPX54-140367 19791029
- 主分类号： C08G65/00
- IPC分类号： C08G65/00 ; C08G65/38 ; C08G65/40
摘要：
A novel polyether resin having the repeating units of the formula: ##STR1## wherein Ar is a divalent aromatic group, and R.sup.1 and R.sup.2 are divalent aliphatic hydrocarbon groups having 1 to 4 carbon atoms, and method of producing same wherein alkylene dihalide and alkali metal salts of bifunctional phenols are reacted in the presence of a phase transfer catalyst. The novel resin may be used, for example, as a film sheet or as an agent for improving the impact strength of polystyrene.
公开/授权文献
- US5373877A Log splitter 公开/授权日：1994-12-20
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