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US 4,746,560 AGranted
Decorative composite panel
AssigneeGlastic Corporation
InventorHerbert A. Goeden
Life of this patent
Estimating the term…
Abstract
A decorative synthetic composite panel having a reinforced base portion comprised of a plurality of layers of fiber glass mat impregnated with a polyester resin, an overlying resin impregnated graphic print sheet, and a transparent resin overlay.
Claims20
A synthetic composite panel comprising:
- a reinforced base portion comprised of a plurality of layers of glass mat impregnated with a polyester resin, said layers of glass mat including at least one thick fiber/low density glass mat and at least one thin fiber/high density glass mat;
- an overlying polyester resin-impregnated graphic print sheet;
- and
- a transparent polyester resin overlay, said layers of glass mat disposed within said base portion in predetermined positions to balance the residual stresses within said panel during the setting of said resins.
1 more element
A method of forming a composite panel, comprising the steps of:
- (a) impregnating a graphic print sheet with an unsaturated polyester resin;
- (b) overlaying said sheet with a thin fiber/high density fiber glass veil impregnated with an unsaturated polyester resin to form a laminate;
- (c) overlaying said laminate on a plurality of glass mats impregnated with a polyester resin, said plurality of glass mats including thick fiber/low density glass mats and thin fiber/high density glass mats wherein at least one thick fiber/low density glass mat is disposed between layers of thin fiber/high density glass mats and the layer immediately below said graphic sheet is a thin fiber/high density glass mat;
- and,
- (d) curing said laminate and impregnated mats under pressure.
2 more elements
Dependencies are inferred from the claim text.