发明名称 |
COMPATIBLE SELF-CROSSLINKING POLY (AMIDE-IMIDE) POLYEPOXIDE RESIN BLENDS AND LAMINATES MADE THEREWITH |
摘要 |
<p>Disclosed is a composition comprising about 5 to about 95 phr of a polyepoxide or other resinous component, about 20 to about 90% of an aprotic solvent, about 5 to about 95 phr of a polyimide having sufficient amic acid functionality to be soluble in the solvent, and sufficient water to hydrolyze the polyimide. A laminate is made from the composition by heating it until the amic acid functionality is substantially eliminated, then impregnating a fibrous substrate with the composition, heating the impregnated substrate to evaporate the solvent and B-stage the composition and form a prepreg, forming a stack of the prepregs, and heating and pressing the stack of prepregs to cure the composition. A wire enamel can also be made from the composition.</p> |
申请公布号 |
CA1274640(A) |
申请公布日期 |
1990.09.25 |
申请号 |
CA19860519991 |
申请日期 |
1986.10.07 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
MARCHETTI, JOSEPH R.;SANJANA, ZAL N. |
分类号 |
C08J5/02;C08L63/02;C08L79/08;(IPC1-7):C08L79/08 |
主分类号 |
C08J5/02 |
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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