Aqueous degreaser emulsion compositions
AssigneeBuckeye International, Inc.
InventorDonald N. VanEenam
Life of this patent
Estimating the term…
Abstract
Aqueous degreaser compositions are formulated in the form of stable emulsions containing at least one sparingly water soluble organic solvent having specified compositional characteristics, a viscosifying thickener and water. The viscosifying thickener is present in an amount such that when the mixture of the organic solvent and thickener are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable 2-phase agglomerate is transformed into a uniformly opaic, stable emulsion having a viscosity of at least 500 centipoise and a droplet size of approximately 0.1 to 3 millimicrons. The compositions so formulated exhibit excellent stability and degreasing efficacies.
Claims17
A stable, aqueous degreaser emulsion composition consisting essentially of:
- (a) at least one sparingly water soluble organic solvent characterized by:
- (i) having a water solubility in the range of approximately 0.05 to approximately 6 weight percent;
- (ii) not being a hydrocarbon or halocarbon;
- (iii) having one or more similar or dissimilar oxygen, nitrogen, sulfur, or phosphorus containing functional groups;
- (iv) being a solvent for hydrophobic soilants;
- and
- (v) being present in an amount exceeding its aqueous solubility up to approximately 30% by weight of said composition;
- (b) a viscosity modifying thickener being present in an amount between approximately 0.1 and 10 wt. % whereby when the mixture of said organic solvent and thickener are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable 2-phase agglomerate is transformed into a uniformly opaque, stable emulsion having a viscosity of at least 500 centipoise at a temperature of 70.degree. F. (21.degree. C.) and a droplet size of approximately 0.1 to 3 millimicrons;
- and
- (c) water.
A stable, aqueous degreaser emulsion composition consisting essentially of:
- (a) 1-phenoxy-2-propanol in an amount exceeding its aqueous solubility up to approximately 30% by weight of said composition;
- (b) polyethylene oxide in an amount between approximately 0.1 and 10 wt. % whereby when the mixture of said 1-phenoxy-2-propanol and polyethylene oxide are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable agglomerate is transformed into a uniformly opaque, stable emulsion having a viscosity of at least 1000 centipoise at a temperature of 70.degree. F. (21.degree. C.) and a droplet size of approximately 0.1 to 3 millimicrons;
- and
- (c) water.
A stable, aqueous degreaser emulsion composition consisting essentially of:
- (a) 1-phenoxy-2-propanol in an amount exceeding its aqueous solubility up to approximately 25-30% by weight of said composition;
- (b) an acrylic acid/alkyl methacrylate copolymer in an amount between approximately 0.1 and 10 wt. % whereby when the mixture of said 1-phenoxy-2-propanol and copolymer are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable agglomerate is transformed into a uniformly opaque, stable emulsion having a viscosity of at least 1000 centipoise at a temperature of 70.degree. F. (21.degree. C.) and a droplet size of approximately 0.1 to 3 millimicrons;
- and
- (c) water.
A stable, aqueous degreaser emulsion composition consisting essentially of:
- (a) 1-phenoxy-2-propanol in an amount exceeding its aqueous solubility up to approximately 30% by weight of said composition;
- (b) magnesium aluminum silicate in an amount between approximately 0.1 to 10 wt. % whereby when the mixture of said 1-phenoxy-2-propanol and magnesium aluminum silicate are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable agglomerate is transformed into a uniformly opaque, stable emulsion having a viscosity of at least 1000 centipoise at a temperature of 70.degree. F. (21.degree. C.) and a droplet size of approximately 0.1 to 3 millimicrons;
- and
- (c) water.
A stable, aqueous degreaser emulsion composition consisting essentially of:
- (a) dipropylene glycol mono-n-butyl ether in an amount exceeding its aqueous solubility up to approximately 30% by weight of said composition;
- (b) an acrylic acid/alkyl methacrylate copolymer in an amount between approximately 0.1 and 10 wt. % whereby when the mixture of said dipropylene glycol mono-n-butyl ether and copolymer are subjected to sufficiently energetic mixing and/or shear conditions, the initially formed, unstable agglomerate is transformed into a uniformly opaque, stable emulsion having a viscosity of at least 1000 centipoise at a temperature of 70.degree. F. (21.degree. C.) and a droplet size of approximately 0.1 to 3 millimicrons;
- (c) monoethanolamine;
- and
- (d) water.
Dependencies are inferred from the claim text.