Method of preparing fiber/resin composites

Details Method of preparing fiber/resin composites Method of preparing fiber/resin composites

1995-06-07

1997-10-21

Berman, Susan W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Compositions to be polymerized by wave energy wherein said...

522 14, 522 16, 522104, 522105, 522170, 522 71, 522 81, 427501, 427513, 428367, 428377, C08F 250, C08L 6302, C08L 6304

Patent

active

056797192

ABSTRACT:
Resin compositions useful for filament winding applications comprising an epoxy component including at least one polyepoxide resin curable by heat, an olefinicially unsaturated monomer component including at least one polyolefinically unsaturated monomer curable by actinic radiation, at least one photoinitiator which is not a peroxide, at least one organic peroxide, and a heat activated curing agent for epoxides. The compositions have a viscosity less than about 2000 centipoise (cps) and are capable of retaining this viscosity for at least about 2 hours at a temperature of from about ambient temperature to about 60.degree. C. The resins are capable of being immobilized by actinic radiation exposure and further heat cured without substantial resin drip. One or more organic peroxides are employed, selected from the group of organic peroxides having 10 hour decomposition half lives at temperatures of from about 50.degree. C. to less than about 104.degree. C. Also, fiber resin composites comprising fiber substrates impregnated with the dual-curing resin compositions is disclosed. Also the process for coating fiber substrates with the dual-curing resin compositions is disclosed.

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