发明名称 |
Flexibilized flame retardant B-staged epoxy resin prepregs and composite laminates made therefrom |
摘要 |
A prepreg useful as the core in flame resistant cooper clad, composite, printed circuit boards is made by impregnating a porous substrate with an impregnant containing: either a brominated epoxy or epoxy resin and reactive flame retarding additive containing bromine and phenolic hydroxyl groups (e.g., tetrabromobisphenol A), phenolic novolac oligomer as curing agent, unsaturated epoxidized oil, and optionally, a suitable catalyst; and then heating the impregnated substrate to the "B"-stage.
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申请公布号 |
US4477512(A) |
申请公布日期 |
1984.10.16 |
申请号 |
US19830490061 |
申请日期 |
1983.04.29 |
申请人 |
WESTINGHOUSE ELECTRIC CORP. |
发明人 |
THOMAS, WILBUR R.;HICKMAN, III, FRED E.;KNIGHT, GEORGE J. |
分类号 |
C08L61/00;B32B15/08;B32B15/092;B32B27/04;C08G59/00;C08G59/30;C08G59/32;C08G59/38;C08G59/40;C08G59/62;C08J5/10;C08J5/24;C08L61/04;C08L61/06;C08L63/00;H01B3/40;H05K1/03;(IPC1-7):B32B5/06 |
主分类号 |
C08L61/00 |
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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