发明公开
EP0046584A1 Method of purifying cyclic dichlorophosphazenes containing trace amounts of protic impurities
失效
包括用于纯化含有的质子杂质痕迹环状dichlorophosphazenes方法。
- 专利标题： Method of purifying cyclic dichlorophosphazenes containing trace amounts of protic impurities
- 专利标题（中）： 包括用于纯化含有的质子杂质痕迹环状dichlorophosphazenes方法。
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申请号： EP81106526.7申请日： 1981-08-21
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公开(公告)号： EP0046584A1公开(公告)日： 1982-03-03
- 发明人: Fieldhouse, John William , Graves, Daniel Frank
- 申请人： THE FIRESTONE TIRE & RUBBER COMPANY
- 申请人地址： 1200 Firestone Parkway Akron, Ohio 44317 US
- 专利权人： THE FIRESTONE TIRE & RUBBER COMPANY
- 当前专利权人： THE FIRESTONE TIRE & RUBBER COMPANY
- 当前专利权人地址： 1200 Firestone Parkway Akron, Ohio 44317 US
- 代理机构： Kraus, Walter, Dr.
- 优先权： US181028 19800825
- 主分类号： C01B21/098
- IPC分类号： C01B21/098 ; C08G79/02
摘要：
Cyclic dichlorophosphazenes containing trace amounts of protic impurities such as water are purified by treatment with boron trihalides under specified temperature and pressure conditions. The catalytic polymerization of the resultant cyclic dichlorophosphazenes, which are substantially free of protic impurities, is greatly improved.
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