| 发明名称 |
Polyaryloxyphosphazene caustic wash |
| 摘要 |
Phenolic impurities are removed from polyaryloxyphosphazenes by extracting a solution of the crude polyaryloxyphosphazene with an aqueous lower alcohol alkali metal base solution such as aqueous methanolic sodium hydroxide.
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| 申请公布号 |
US4789728(A) |
申请公布日期 |
1988.12.06 |
| 申请号 |
US19870042989 |
申请日期 |
1987.04.27 |
| 申请人 |
ETHYL CORPORATION |
发明人 |
ADAMS, JR., J. ROBERT |
| 分类号 |
C08G79/02;(IPC1-7):C08G73/00 |
主分类号 |
C08G79/02 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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