Fiber-reinforced resin composition
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United States of America Patent
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Mar 18, 1997
Issued Date -
N/A
app pub date -
Aug 18, 1994
filing date -
Jun 27, 1990
priority date (Note) -
Expired
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Abstract
A fiber-reinforced resin composition, which comprises: an epoxy resin having at least two epoxy groups in the molecule, a polymerizable unsaturated group-containing epoxy compound of the following general formula [I], ##STR1## wherein R.sup.1 is H or CH.sub.3, R.sup.2 is an alkylene group having 1 to 20 carbon atoms, and n is an integer of 0 to 20, a liquid carboxylic acid anhydride containing a monofunctional carboxylic acid anhydride and/or a polyfunctional carboxylic acid anhydride obtained by reacting a lower aliphatic polyhydric alcohol with a trimellitic acid or a derivative thereof, a curing promoter, a radical polymerization initiator, and a fiber, the glass transition temperature (Tg, .degree.C.) and breaking strain (E, %) of a cured product of said composition satisfying the following formulae: Tg.gtoreq.-17E+240 E.gtoreq.4, and Tg.gtoreq.125.
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