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US 4,789,567 AGranted
Abrasion resistant coating and method of application
AssigneeJohn E. Freeman
InventorsJohn E. Freeman, Ronald L. Clanton
Life of this patent
Estimating the term…
Abstract
A protective coating of finely divided abrasion resistant inerts carried in a corrosion resistant resin is diluted with a solvent and applied to a surface. The applied coating is cured to achieve either a single layer of inerts dispersed in the resin or two layers including a dense layer of inerts in resin covered by a thin layer of resin.
Claims6
A method for protecting metal surfaces, metal plates and pipes, said method comprising the steps of:
- (a) sand blasting said surface to provide a prepared surface having a desired anchor pattern;
- (b) removing substantially all dust particulate material from said prepared surface;
- (c) mixing a corrosion resistent resin containing finely divided abrasion resistent particles with the appropriate hardening catalyst for said resin to form a coating mixture;
- (d) diluting said coating mixture with a selected solvent to allow even application of said coating mixture;
- (e) applying said coating mixture to said prepared suface to obtain a desired thickness;
- and,
- (f) curing said coating as applied at room temperature (72.degree. F.) for eight to twelve hours to obtain a coating on said surface having a first layer of concentrated abrasion resistant particles proximate said surface and a second layer of corrosion resistant resin over said first layer, wherein said corrosion resistant resin comprises 90% by weight finely divided ceramic particles in 10% by weight Bisphenol A epoxy resin including a polyamide elastomer in the ration of about one elastomer polymer molecule for every forty-second ceramic particle.
4 more elements
A method for protecting metal surfaces, metal plates, and pipes, said method comprising the steps of:
- (a) sandblasting said surface to provide a prepared surface having a desired anchor pattern;
- (b) removing substantially all dust and particulate material from said prepared surface;
- (c) mixing a corrosion resistant resin containing finely divided abrasion resistant particles with the appropriate hardening catalyst for said resin to form a coating mixture wherein said corrosion resistant resin comprises 90% by weight finely divided ceramic particles and a 10% by weight Bisphenol A epoxy resin including a polyamide elastomer in the ratio of about one elastomer polymer molecule for every forty-second ceramic particle;
- (d) diluting said coating mixture with a selected solvent to allow even application of said coating mixture;
- (e) applying said coating mixture to said prepared surface to obtain a desired thickness;
- and,
- (f) sequentially curing said coating as applied first at room temperature (72.degree. F.) for one-half to one hour and than at 250.degree. F. to 300.degree. F. for one to one and a half hours to obtain a coating on said surface having a first layer of concentrated abrasion resistant particles proximate said surface and a second layer of corrosion resistant resin over said first layer.
4 more elements
Dependencies are inferred from the claim text.