Method of making glass fiber reinforced laminate

Details Method of making glass fiber reinforced laminate Method of making glass fiber reinforced laminate

1979-12-28

1981-10-20

Bell, James J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156249, 156272, 156324, 20415914, 20415916, 428426, 428914, B29C 1900

Patent

active

042959071

ABSTRACT:
Glass fiber reinforced plastic laminates including randomly oriented glass fibers, embedded within unsaturated polyester resins, are provided over at least one surface thereof with a gel coat, essentially free of the glass fibers. The gel coat is formed from resins which are polymerizable in the presence of ultraviolet radiation. The gel coat is at least partially cured on a transparent carrier film by exposing gel coat resins to ultraviolet radiation. Thereafter randomly oriented glass fibers and unsaturated polyester resin syrup are applied onto the gel coat to form the resulting laminate. The gel coat is selected to provide superior weathering characteristics and resistance to deterioration from ultra-violet radiation exposure, e.g., sunlight, when compared to the corresponding properties of the unsaturated polyester resin in which the randomly oriented glass fibers are embedded.

REFERENCES:
patent: 3652356 (1972-03-01), Van Gasse
patent: 3655483 (1972-04-01), Borrel et al.
patent: 3666591 (1972-05-01), Hall
patent: 3773638 (1973-11-01), Gotah et al.
patent: 3897295 (1975-07-01), Dowbenko et al.
patent: 3958072 (1976-05-01), Araki et al.
patent: 4105118 (1978-08-01), Williams
patent: 4171387 (1979-10-01), Fogle et al.
patent: 4214026 (1980-07-01), Ibata et al.

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