Plastic laminate repair
First Claim
1. A process for restoring plastic laminate structures having unwanted void areas in the surface thereof comprising the steps of:
- cleaning the void areas preparatory to their filling;
thereafter filling the void areas with patch materials; and
applying protective topcoatings to the exposed surface of the fillings,wherein said cleaning comprises removing loose and adventitious material from said voids, andwherein said patch materials comprise (1) a member selected from the group consisting of vinyl acetate/acrylic copolymers, vinyl acetate homopolymers, and mixtures of vinyl acetate/acrylic copolymers with said vinyl acetate homopolymers, together with (2) inert mineral powders, and (3) color pigments; and
wherein further, said topcoatings are polyurethane polymers.
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Accused Products
Abstract
A process for repairing plastic laminates comprising cleaning the damaged areas and filling the same with a suitably colored patch material. Preferably the patch material comprises a mixture of an aqueous dispersion of a vinyl acetate homopolymer with an aqueous dispersion of a vinly acetate/acrylic copolymer, together with a color pigment, and a filler. Desirable additonal ingredients to the patch material include an aqueous polyurethane dispersion and a thickening agent. An initial foundation base layer comprising an epoxy material may be applied to the damaged area before the patch material is applied. After drying and smoothing, the surface of the patch may be decorated with a design to match the undamaged area, and a clear coat of polyurethane is applied to the patch.
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Citations
10 Claims
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1. A process for restoring plastic laminate structures having unwanted void areas in the surface thereof comprising the steps of:
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cleaning the void areas preparatory to their filling; thereafter filling the void areas with patch materials; and applying protective topcoatings to the exposed surface of the fillings, wherein said cleaning comprises removing loose and adventitious material from said voids, and wherein said patch materials comprise (1) a member selected from the group consisting of vinyl acetate/acrylic copolymers, vinyl acetate homopolymers, and mixtures of vinyl acetate/acrylic copolymers with said vinyl acetate homopolymers, together with (2) inert mineral powders, and (3) color pigments; and wherein further, said topcoatings are polyurethane polymers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification