Solvent resin emulsion gloss coating composition
AssigneeSeymour of Sycamore Inc.
InventorsGus W. Leep, Gary L. Bolt
Life of this patent
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Abstract
There is disclosed a high gloss sag resistant water-in-oil emulsion coating composition having water dispersed in an organic solvent soluble resin and a solvent blend having a boiling range and a progression of boiling points which allow a high gloss, sag-free coating to be formed from a water containing paint. The composition may include colloidal hydrated aluminum silicate to further assist in the evaporation of the dispersed water in the formation of the high gloss film.
Claims17
An improved gloss coating composition, said coating composition being a water-in-oil emulsion, said coating composition comprising:
- (a) a continuous phase, said continuous phase including at least two evaporable organic solvents, from about 45% to about 67% of a first solvent having a boiling range of from 100.degree. to 300.degree. F., from about 30% to about 45% of a second solvent having a boiling range of from 300.degree. to 400.degree. F., said solvents being of aliphatic or aromatic or combined aliphatic and aromatic hydrocarbon composition;
- (b) a dispersed phase, said dispersed phase including water;
- (c) a film-forming resin dissolvable in said solvents, said continuous phase further including an effective amount of said resin for forming a substantially sag-free film on a workpiece, said film registering a gloss value of no less than sixty units when applied to a non-horizontal surface of said workpiece;
- and (d) an emulsifier, said gloss coating composition including an effective amount of said emulsifier for maintaining homogeneity of said dispersed phase throughout said continuous phase, said emulsifier having an HLB value of from 2 to about 6, said gloss coating composition having as much as 80% water, said gloss coating composition being dryable to form said film on said workpiece, whereupon substantially all of said water and said solvents evaporate from said coating composition and do not thereby alter substantially said gloss value of said film.
A method of manufacturing an improved gloss coating composition, said coating composition being a water-in-oil emulsion, said coating composition having a continuous phase and a dispersed phase, said continuous phase including at least two evaporable organic solvents, said dispersed phase including water, said gloss coating composition including an effective amount of an emulsifier for maintaining homogeneity of said dispersed phase throughout said continuous phase, said method comprising:
- (a) blending together from about 45% to about 67% of a first solvent having a boiling range of from 100.degree. to 300.degree. F. and from about 30% to about 45% of a second solvent having a boiling range of from 300.degree. to 400.degree. F. thereby producing a solvent blend, said solvents being of aliphatic or aromatic or combined aliphatic and aromatic hydrocarbon composition;
- (b) adding to said solvent blend an effective amount of a film-forming resin thereby producing a mixture, said resin being soluble in said solvent blend;
- and (c) adding to said mixture a first effective amount of said emulsifier and to said dispersed phase a second effective amount of said emulsifier for maintaining homogeneity of said dispersed phase throughout said continuous phase and thereafter mixing said dispersed phase and said mixture thereby producing said water-to-oil emulsion capable of forming a substantially sag-free film on a workpiece, said film registering a gloss value of no less than sixty units when applied to a non-horizontal surface of said workpiece, said emulsifier having an HLB value of from 2 to about 6, said gloss coating composition having as much as 80% water, said gloss coating composition being dryable to form said film on said workpiece, whereupon substantially all of said water and said solvents evaporate from said coating composition and do not thereby alter substantially said gloss value of said film.
Dependencies are inferred from the claim text.