发明名称 |
Halogenated advanced epoxy resins |
摘要 |
Advanced epoxy resins are disclosed which result from the reaction of a relatively low molecular weight epoxy resin and a polyhydric phenol wherein at least one of the reactants contains at least one halogen atom which is meta with respect to a glycidyl ether group or a hydroxyl group attached to an aromatic ring. These advanced epoxy resins, when cured with a suitable curing agent, possess an improvement as compared to an advanced epoxy resin containing halogen atoms which are ortho with respect to a glycidyl ether group in at least one of thermal stability, glass transition temperature, relationship of viscosity to molecular weight and resistance to forming hydrolyzed halides in the presence of a refluxing solution of an alkali metal hydroxide.
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申请公布号 |
US4895755(A) |
申请公布日期 |
1990.01.23 |
申请号 |
US19880259449 |
申请日期 |
1988.10.14 |
申请人 |
THE DOW CHEMICAL COMPANY |
发明人 |
BERMAN, JODY R.;WANG, CHUN S.;WALKER, LOUIS L.;MENDOZA, ABEL |
分类号 |
C07C37/62;C07D303/24;C08G59/06;C08G59/30;C08G59/32;H05K1/03 |
主分类号 |
C07C37/62 |
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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