Technique for forming resin-impregnated fiberglass sheets using

Details Technique for forming resin-impregnated fiberglass sheets using Technique for forming resin-impregnated fiberglass sheets using

1997-07-09

1999-07-06

Weisberger, Richard

Coating processes

With post-treatment of coating or coating material

Heating or drying

427381, 427386, 4273897, 427402, 4274073, B32B 3108, B32B 700

Patent

active

059195258

ABSTRACT:
A method and resultant article are provided which optimize the adhesion of resin to the glass fibers in fiberglass cloth impregnated with a resin and also optimize the adhesion of the impregnated resin to metal sheets laminated to the resin-impregnated cloth. The fiberglass is treated in two or more passes. On the first pass, the fiberglass is impregnated with a first resin which is optimized for adherence to glass fibers and the coated resin is partially cured. In a last pass, the fiberglass is impregnated with a second resin, which is different from said first resin, and is optimized for bonding to metal. The second resin is then partially cured. The first and second resins are selected such that they form a bond with each other when cured.

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"Prepreg Manufacturing Process," F.W. Haining and D.G. Herbaugh, IBM Technical Disclosure Bulletin, vol. 20, No. 11B, Apr., 1978 B, p. 4723.

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