Fiber materials preimpregnated with duromeric polyimide resins and process for their preparation
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United States of America Patent
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Oct 26, 1982
Grant Date -
N/A
app pub date -
Oct 31, 1980
filing date -
Oct 31, 1979
priority date (Note) -
Expired
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Abstract
A preimpregnated fibrous structural material is provided comprising a heat curable imide resin produced by reaction between an N,N'-bisimide of an unsaturated di-carboxylic acid and a hydrazide of an amino acid, and fibrous materials selected from the group consisting of carbon fibers, glass fibers and aromatic polyamide fibers impregnated with said imide resin.
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