Toughened high temperature resin matrix system

Details Toughened high temperature resin matrix system Toughened high temperature resin matrix system

C - Chemistry, Metallurgy

08

G

C08G 18/58 (2006.01) B32B 27/02 (2006.01) B32B 27/04 (2006.01) C08G 18/00 (2006.01) C08G 59/02 (2006.01) C08G 59/40 (2006.01) C08L 63/00 (2006.01) C08L 75/04 (2006.01)

Patent

CA 2063437

2063437 9100883 PCTABS00003 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 250-400·F in the presence of a metallic complex catalyst, and OH donor.

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