Coating composition comprising methyl-cellulose and polyvinyl acetate

Abstract

A method of coating irregular, non-homogeneous surfaces, such as wood, metals, concrete walls, is described which consists of applying onto the surface an aqueous emulsion prepared by mixing an organic adhesive, which may comprise a cellulose compound, and at least one synthetic resin in an aqueous medium. A filler may also be used. The coating composition may be applied by brushing or spraying and is then allowed to dry.The present invention is related to the coating of irregular hollow, non-homogenous surfaces or surfaces with diverse shapes or even but not allowing further economical treatment or surfaces of lower value by using hydrophilic matter adhering thereto to make them smooth and allowing thereby further treatment without further complementary treatment.Prior to the present invention it was known that surfaces of lower value or irregular, hollow, non-homogenous with diverse shapes or even but not allowing further treatment for economical or other reasons for obtaining tradable items, should be coated with other wooden, plastic or metallic surfaces common putty to make them suitable for further treatment and tradable.

Description

Claims

1. A coating composition which comprises 5-40% of polyvinyl acetate, up to 10% of an organic water soluble adhesive which comprises up to 5% of methyl-cellulose, 5-50% water, a mineral filler in the proportion of 5-75%, the total amount of solid constituents being 50-80%.

2. The composition according to claim 1 additionally comprising a dye.

3. The composition according to claim 1 wherein the mineral filler is calcium carbonate, calcium sulfate, or concrete.

4. The composition according to claim 1 wherein the proportion of the polyvinyl acetate is approximately 15%.

5. The method of coating a surface which comprises forming a composition which comprises 5-40% of polyvinyl acetate, up to 10% of an organic water soluble adhesive which comprises up to 10% of methyl cellulose, 5-50% water, a mineral filler in the proportion of 5-75%, the total amount of solid constituents being 50-80%, as an aqueous emulsion and applying the emulsion onto the surface and allowing drying to occur.