Coated structural articles
AssigneeElk Corporation of Dallas
InventorYounger Ahluwalia
Life of this patent
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Abstract
A structural article comprises a substrate having an ionic charge which is coated with a coating having essentially the same ionic charge. The coating consists essentially of a filler material and a binder material. The substrate is preferably fiberglass, the filler is selected from the group consisting of fly ash, charged calcium carbonate, ceramic microspheres and mixtures thereof and the binder material is preferably acrylic latex. The substrate is preferably bonded together using a mixture of urea formaldehyde and standard acrylic. In a preferred embodiment, the coating comprises nearly 85% of the structural article and a filler which is approximately 50% fly ash and 50% calcium carbonate comprises approximately 85% to 95% of the coating.
Claims19
A structural article comprising a substrate having an ionic charge coated with a coating having essentially the same ionic charge wherein said coating consists essentially of a filler material and a binder material and wherein said binder material bonds the filler material together and to the substrate and wherein said coatings does not bleed through said substrate.
A structural article coated with a coating consisting essentially of a filler material and a binder material wherein
- a) said article is from 10% to 25% by weight glass fibers and
- b) said coating is from 84% to 96% filler selected from the group consisting of fly ash, charged calcium carbonate, ceramic microspheres and mixtures thereof and from 16% to 4% acrylic latex binder material.
A method for making a structural article comprising the steps of coating a substrate having an ionic charge with a coating having essentially the same ionic charge wherein said coating consists essentially of a filler material and a binder material and wherein said binder material bonds the filler material together and to the substrate.
Dependencies are inferred from the claim text.