Patent ID: 7309684
Filing Date: 2007-12-18
Classification: C09D,C11D

Abstract:
1. An oil-in-water emulsion composition, comprising: (A) a solvent selected from the group consisting of naphtha, heavy aromatic naphtha, turpentine, toluene, xylene, methylene chloride, C9-C15 aromatic compounds, acetone, methyl ethyl ketone, N-methyl pyrrolidone, dimethyl glutarate, dimethyl adipate, diethylene glycol monobutyl ether, and mixtures of two or more thereof; (B) water; (C) at least one surfactant selected from the group consisting of an oleyl alcohol 20-ethoxylate, dodecyl alcohol 12-15 ethoxylate, octyl alcohol 9-11ethoxylate and mixtures thereof; (D) at least one thickener selected from the group consisting of a hectorite clay, a smectite clay, and mixtures thereof; and (E) at least one base selected from the group consisting of potassium hydroxide, sodium carbonate, potassium acetate, dimethylethanolamine, triethanolamine, a polyamine enriched in triethylene tetramine, a polyamine enriched in tetraethylene pentamine, a polyamine enriched in pentaethylene hexamine and mixtures thereof; resulting in an emulsified remover; wherein said oil-in water emulsion composition is characterized by a continuous aqueous phase, and a discontinuous oil or solvent phase and wherein the oil-in-water emulsion composition is characterized by a dispersed oil phase comprising droplets having a mean diameter of about 0.05 to about 50 microns; and wherein said emulsion composition removes aqueous coatings, non-aqueous coatings, waxes and greases from substrates that such material is applied to; and wherein the solvent is present in the oil-in-water emulsion remover at a concentration in the range of about 20 to about 80% by weight of the emulsified composition, wherein the water is present in the oil-in-water emulsion remover at a concentration in the range from about 15 to about 75% by weight of the emulsified composition, wherein the concentration of the surfactant in the oil-in-water emulsion composition in the range from about 0.1 to about 10% by weight of the emulsified composition, wherein the thickener is present in the oil-in-water emulsion remover in a concentration up to about 5% by weight of the emulsified composition, and wherein the base is present in the oil-in-water emulsion remover at a concentration of up to about 60% by weight based on the weight of the water in the oil-in-water emulsion.