发明名称 |
PROCESS FOR PRODUCING LOW-MOLECULAR POLYPHENYLENE ETHER |
摘要 |
A process for producing a low-molecular polyphenylene ether having a content of components with molecular weights of 20,000 or more of 10 mass% or less and a number average molecular weight of 4,000 or less by a redistribution reaction which involves reacting a raw polyphenylene ether having a number average molecular weight of 10,000 or more with a polyphenol compound and a radical initiator, characterized in that the redistribution reaction step is a step conducted in a solvent; the ratio of the raw polyphenylene ether to the solvent (raw polyphenylene ether: solvent) (mass ratio) is provided at 0.4 : 100 to 40 : 100 (mass ratio); and the ratio of the radical initiator to the solvent (radical initiator: solvent) (mass ratio) is provided at 0.5 : 100 to 5 : 100 (mass ratio). |
申请公布号 |
EP1988112(A1) |
申请公布日期 |
2008.11.05 |
申请号 |
EP20070708379 |
申请日期 |
2007.02.14 |
申请人 |
ASAHI KASEI CHEMICALS CORPORATION |
发明人 |
ONIZUKA, KENZO;SAKURAI, MINORU |
分类号 |
C08G65/48;C08G59/62;C08J5/24 |
主分类号 |
C08G65/48 |
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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