Anti-skid coating composition
AssigneeReichhold Chemicals, Inc.
InventorWinston C. Ainslie
Life of this patent
Estimating the term…
Abstract
An anti-skid coating composition for coating various substrates including structural panel board surfaces, comprises a binder made of urea formaldehyde resin, polyvinyl acetate, ammonium chloride and a dispersant. The binder is used in conjunction with an aggregate, such as walnut shells. A method is also provided for coating the substrates to impart slip resistance thereto.
Claims13
A weather-resistant temporary anti-skid coating consisting essentially of:
- (a) a binder composition having a viscosity of about 300 to 1200 centipoises comprising:
- (i) about 85 to 95 weight % of an aqueous resin selected from the group consisting of urea-formaldehyde resin, melamine formaldehyde resin, and mixtures thereof;
- (ii) about 3 to 20 weight % of an aqueous emulsion selected from the group consisting of polyvinyl acetate, ethylene-vinyl acetate copolymer and mixtures thereof;
- (iii) a catalyst comprising a salt selected from the group consisting of ammonium chloride, ammonium sulfate and mixtures thereof;
- (iv) a dispersant for said catalyst;
- and
- (b) an aggregate that does not dull cutting blades having a particle size of about 20 to 60 mesh;
- wherein the coating is sufficiently viscous to substantially prevent its penetration into a wooden substrate and wherein said coating has a cure time of about 1/2 to 11/2 minutes at about 350.degree. F.
A weather-resistant laminate having a temporary anti-skid coating consisting essentially of a substrate, a first coating of a binder composition in contact with the substrate comprising:
- (a) about 85 to 95 weight % of an aqueous resin selected from the group consisting of urea-formaldehyde resin, melamine formaldehyde resin, and mixtures thereof;
- (b) about 3 to 20 weight % of an aqueous emulsion selected from the group consisting of polyvinyl acetate, ethylene-vinyl acetate copolymer and mixtures thereof;
- (c) a catalyst comprising a salt selected from the group consisting of ammonium chloride, ammonium sulfate and mixtures thereof;
- (d) a dispersant for said catalyst;
- and
- an intermediate aggregate layer with an aggregate that does not dull cutting blades having a particle size of about 20 to 60 mesh in contact with the first binder coating;
- and a second top coating of the aforesaid binder composition in contact with the aggregate coating;
- wherein the binder composition has a viscosity of about 300 to 1200 centipoise, and is sufficiently viscous to substantially prevent its penetration into a wooden substrate, and wherein said composition has a cure time of about 1/2 to 11/2 minutes at about 350.degree. F.
A method of imparting improved weather-resistant temporary slip resistance to a substrate, consisting essentially of:
- (a) contacting a first coating of an anti-skid binder composition to the substrate surface;
- (b) contacting an aggregate that does not dull cutting blades to the first coating;
- (c) contacting a second coating of said binder composition to the aggregate;
- wherein said binding composition comprises:
- (i) about an 85 to 95 weight % of an aqueous resin selected from the group consisting of urea-formaldehyde resin, melamine formaldehyde resin, and mixtures thereof;
- (ii) about 3 to 20 weight % of an aqueous emulsion selected from the group consisting of polyvinyl acetate, ethylene-vinyl acetate copolymer, and mixtures thereof;
- (iii) a catalyst comprising a salt selected from the group consisting of ammonium chloride, ammonium sulfate, and mixtures thereof;
- (iv) a dispersant for said catalyst;
- and wherein the binder composition has a viscosity of about 300 to 1200 centipoise and is made sufficiently viscous to substantially prevent its penetration into a wooden substrate and wherein said composition cures in about 1/2 to 11/2 minutes at about 350.degree. F.
Dependencies are inferred from the claim text.