Suppression of flash points of emulsions
An emulsion composition for cleaning of fresh paint and for thinning of paint, wherein the composition has no observable flash point and comprises a hydrocarbon solvent, a surfactant and water.
1 . An emulsion composition comprising:
A. from about 35.0 to about 85.0 percent by weight of water;
B. from about 15.0 to about 65.0 percent by weight of at least one hydrocarbon solvent having a flash point of at least about 140° F.; and
C. from about 0.10 to about 5.0 percent by weight of at least one surfactant; wherein the emulsion composition has no observable flash point at temperatures up to the boiling point of the composition.
2 . A composition as defined by claim 1 wherein the composition comprises from about 20.0 to about 50.0 percent by weight of the hydrocarbon solvent.
3 . A composition as defined by claim 1 wherein the composition comprises from about 50.0 to about 75.0 percent by weight of water.
4 . A composition as defined by claim 1 wherein the composition comprises less than about 1.0 percent by weight of the surfactant.
5 . A composition as defined by claim 1 wherein the hydrocarbon solvent is an aliphatic hydrocarbon.
6 . A composition as defined by claim 1 wherein the hydrocarbon solvent is an aromatic hydrocarbon.
7 . A composition as defined by claim 1 wherein the surfactant is an anionic, nonionic, cationic, amphoteric or quaternary surfactant or a mixture of such surfactants.
8 . A composition as defined by claim 1 wherein the surfactant is an amphoteric surfactant.
9 . A composition as defined by claim 7 wherein the amphoteric surfactant is oleyl imidazoline.
10 . A composition as defined by claim 1 wherein the water is deionized or tap water.
11 . A process for thinning paint, wherein the process comprises treating the paint with an emulsion composition comprising:
A. from about 35.0 to about 85.0 percent by weight of water;
B. from about 15.0 to about 65.0 percent by weight of at least one hydrocarbon solvent having a flash point of at least about 140° F.; and
C. from about 0.10 to about 5.0 percent by weight of at least one surfactant;
wherein the emulsion composition has no observable flash point at temperatures up to the boiling point of the composition.
12 . A process as defined by claim 11 wherein the composition comprises from about 20.0 to about 50.0 percent by weight of the hydrocarbon solvent.
13 . A process as defined by claim 11 wherein the composition comprises from about 50.0 to about 75.0 percent by weight of water.
14 . A process as defined by claim 11 wherein the composition comprises less than about 1.0 percent by weight of the surfactant.
15 . A process as defined by claim 11 wherein the hydrocarbon solvent is an aliphatic hydrocarbon.
16 . A process as defined by claim 11 wherein the hydrocarbon solvent is an aromatic hydrocarbon.
17 . A process as defined by claim 11 wherein the surfactant is an anionic, nonionic, cationic, amphoteric or quaternary surfactant or a mixture of such surfactants.
18 . A process as defined by claim 11 wherein the surfactant is an amphoteric surfactant.
19 . A process as defined by claim 18 wherein the amphoteric surfactant is oleyl imidazoline.
20 . A process as defined by claim 11 wherein the water is deionized or tap water.