Method for producing prepreg rovings

Details Method for producing prepreg rovings Method for producing prepreg rovings

1981-02-20

1984-01-24

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156179, 156180, 156245, 156313, 1563314, 156332, 264137, 4273897, 4274346, 428114, 428247, 428296, 525126, 525328, 525440, 528 83, C09J 502

Patent

active

044274823

ABSTRACT:
A method for producing a prepreg roving, which comprises impregnating a composition comprising an unsaturated polyester, an unsaturated monomer and a polyisocynate compound in a filamentary reinforcing material, and then heating the impregnated reinforcing material to react the unsaturated polyester with the polyisocyanate compound; and a method for producing a fiber-reinforced plastic article, which comprises disposing prepreg rovings (A), said prepreg rovings being prepared by the above method between at least two plies of sheet molding compound (B) obtained by impregnating a composition comprising an unsaturated polyester and an unsaturated monomer in glass fibers and forming the impregnated product into a sheet; and consolidating the resulting assembly under heat and pressure.

REFERENCES:
patent: 2596162 (1952-05-01), Muskat
patent: 2861910 (1958-11-01), Johnston et al.
patent: 2977630 (1961-04-01), Bazler
patent: 3008917 (1961-11-01), Park et al.
patent: 3222237 (1965-12-01), McKelvy
patent: 3361845 (1968-01-01), Watanabe et al.
patent: 3442739 (1969-05-01), Johnson

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