发明名称 |
Process for producing internally plasticized phenolic resins |
摘要 |
Internally plasticized phenolic resins suitable for use in preparing laminates and the like excellent in electrical properties, heat resistance, solvent resistance as well as punchability are produced by reacting a phenol-formaldehyde resin containing less than 4% by weight of unreacted free monohydric phenol or phenols with an epoxidized vegetable oil, and if required with formaldehyde, with heating preferably in the presence of one or more secondary and/or tertiary amines.
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申请公布号 |
US4209429(A) |
申请公布日期 |
1980.06.24 |
申请号 |
US19780937115 |
申请日期 |
1978.08.28 |
申请人 |
HITACHI CHEMICAL CO LTD |
发明人 |
KONII, SUSUMU;NANAUMI, KEN;SHINKO, TOYOTARO;YASUZAWA, KOHEI;YOSHIDA, TAKESHI;YOSHIMURA, YUKIO |
分类号 |
C08G8/28;C08L61/14;D21H17/48;H05K1/03;(IPC1-7):C08G8/10;C08G8/20;C08G8/32 |
主分类号 |
C08G8/28 |
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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