Water-based coating composition containing polyvinyl chloride

Claim 2

A substrate coated with a water-based coating formulation consisting essentially of powdered polyvinyl chloride dispersed in a solution of a water-dilutable resin, having functional carboxyl or hydroxy groups, selected from the group consisting of an alkyd resin, an acrylic resin; a mixture of an acrylic resin and an aminoplast, a mixture of an acrylic resin and a 1,2-epoxy resin, and a mixture of an acrylic resin, a 1,2-epoxy resin, and a phenolic resin, water-solubilized with ammonia, NH 4 OH or an amine solubilizer, in water, a mixture of water and an alcohol or ether alcohol, or a mixture of water, alcohol, and ether alcohol; the weight ratio of polyvinyl chloride to water-dilutable resin being between 15:1 and about 1:1.

Claim 3

A substrate as defined in claim 1, wherein said substrate is a metal substrate and the coated substrate is baked.

Claim 4

A metal substrate as defined in claim 2, wherein said water-dilutable resin is an alkyd resin.

Claim 5

A metal substrate as defined in claim 2, wherein said water-dilutable resin is an acrylic resin.

Claim 6

A metal substrate as defined in claim 2, wherein said water-dilutable resin is a mixture of an acrylic resin and an aminoplast.

Claim 7

A metal substrate as defined in claim 2, wherein said water-dilutable resin is a mixture of an acrylic resin and a 1,2-epoxy resin.

Claim 8

A metal substrate as defined in claim 2, wherein said water-dilutable resin is a mixture of an acrylic resin, a 1,2-epoxy resin, and a phenolic resin.

Claim 9

A metal substrate as defined in claim 3, wherein said alkyd resin is a polyester of tall oil fatty acids, isophthalic acid, dimethylolpropane, and trimellitic anhydride; and said amine is dimethylethanolamine.

Claim 10

A metal substrate as defined in claim 4, wherein said acrylic resin is a copolymer of 70 parts methyl methacrylate, 20 parts ethyl acrylate and 10 parts acrylic acid; and said solubilizer is HN 4 OH.

Claim 11

A metal substrate as defined in claim 5, wherein said acrylic resin is a copolymer of 90 parts ethyl methacrylate and 10 parts acrylic acid; said aminoplast is hexamethoxymethylmelamine; and said amine is dimethylethanolamine.

Claim 12

A metal substrate as defined in claim 6, wherein said acrylic resin is a copolymer of 90 parts ethylmethacrylate and 10 parts acrylic acid; said 1,2-epoxy resin is a diglycidyl ether of bisphenol A having an epoxide equivalent weight of 185-192; and said solubilizer is HN 4 OH.

Claim 13

A metal substrate as defined in claim 7, wherein said acrylic resin is a copolymer of 90 parts ethyl methacrylate and 10 parts acrylic acid; said 1,2-epoxy resin is a diglycidyl ether of bisphenol A having an epoxide equivalent weight of 185-192; said phenolic resin is 50 parts phenol and 50 parts o-cresol reacted with formaldehyde; and said solubilizer is NH 4 OH.

Claim 14

A metal container having its interior surface coated with a water-based coating formulation consisting essentially of powdered polyvinyl chloride dispersed in a solution of a water-dilutable resin, having functional carboxyl or hydroxy groups, selected from the group consisting of an alkyd resin, an acrylic resin; a mixture of an acrylic resin and an aminoplast, a mixture of an acrylic resin and a 1,2-epoxy resin, and a mixture of an acrylic resin, a 1,2-epoxy resin, and a phenolic resin, water-solubilized with ammonia, NH 4 OH or an amine solubilizer, in water, a mixture of water and an alcohol or ether alcohol, or a mixture of water, alcohol, and ether alcohol; the weight ratio of polyvinyl chloride to water-dilutable resin being between 15:1 and about 1:1.

Claim 15

A metal container having its interior surface coated with a water-based coating formulation consisting essentially of powdered polyvinyl chloride dispersed in a solution of a water-dilutable resin, having functional carboxyl or hydroxy groups, selected from the group consisting of an alkyd resin, an acrylic resin; a mixture of an acrylic resin and an aminoplast, a mixture of an acrylic resin and a 1,2-epoxy resin, and a mixture of an acrylic resin, a 1,2-epoxy resin, and a phenolic resin, water-solubilized with ammonia, NH 4 OH or an amine solubilizer, in water, a mixture of water and an alcohol or ether alcohol, or a mixture of water, alcohol, and ether alcohol; the weight ratio of polyvinyl chloride to water-dilutable resin being between 15:1 and about 1:1.

Claim 16

A metal container as defined in claim 13, wherein said water-dilutable resin is an acrylic resin.

Claim 17

A metal container as defined in claim 14, wherein said acrylic resin is a copolymer of 70 parts methyl methacrylate, 20 parts ethyl acrylate and 10 parts acrylic acid; and said solubilizer is HN 4 OH.