<p>A matrix resin system, for the preparation of composite parts, is comprised of a major amount of cyanate resin and an epoxy resin modified by reaction with an isocyanate. The resin system can be toughened by the addition of thermoplastic material, the toughness improvement being enhanced by the addition of a polyester rubber additive. The modified epoxy resin system is itself a resin having good modulus and Tg characteristics. The resin is cured at temperatures of 250 DEG -400 DEG F. in the presence of a metallic complex catalyst, and OH donor.</p>
申请公布号
DE69024807(D1)
申请公布日期
1996.02.22
申请号
DE1990624807
申请日期
1990.07.05
申请人
HEXCEL CORP., DUBLIN, CALIF., US
发明人
LEE, FRANK, W., DANVILLE, CA 94526, US;BARON, KENNETH, S., SAN RAMON, CA 94583, US;BOYLE, MAUREEN, OAKLAND, CA 94619, US