发明名称 |
POLYFUNCTIONAL POLY(ARYLENE ETHER) METHOD |
摘要 |
A polyfunctional poly(arylene ether) resin may be prepared by a method that includes oxidatively copolymerizing a monohydric phenol and a polyhydric phenol in an aromatic hydrocarbon solvent in the presence of a catalyst comprising a metal ion and a nitrogen-containing ligand to form a solution comprising a polyfunctional poly(arylene ether) having an intrinsic viscosity of about 0.04 to about 0.3 deciliter per gram at 25°C in chloroform; and contacting the polyfunctional poly(arylene ether) solution with an aqueous solution of a chelating agent to extract the metal ion from the solution; wherein the chelating agent and metal ion are present in a molar ratio of about 1.0 to about 1.5. The method reduces the formation of a dispersion during the chelation step.
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申请公布号 |
KR20080066795(A) |
申请公布日期 |
2008.07.16 |
申请号 |
KR20087011292 |
申请日期 |
2008.05.09 |
申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
CARRILLO ALVARO;DELSMAN ERIK RENE;FRESHOUR AMY RENE;GUO HUA;KRUGLOV ALEXEY;PETERS EDWARD N. |
分类号 |
C08G65/44;C08G65/46 |
主分类号 |
C08G65/44 |
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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