Shear-stable mist-suppressing compositions
AssigneeThe Lubrizol Corporation
InventorsRichard A. Denis, Sanjay Kalhan, Robert E. Quinn
Life of this patent
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Abstract
Aqueous metal working fluids containing a water-soluble mist suppressing copolymer are disclosed. The copolymer includes styrene or hydrocarbyl-substituted styrene hydrophobic monomers and hydrophilic monomers. Optionally, the metal working fluid can be an oil-in-water emulsion.
Claims26
A method for reducing mist formation in a high shear aqueous system which involves application of an aqueous composition to said high shear system, comprising:
- including in said aqueous composition, a water-dispersible, mist suppressing copolymer comprising
- (A) hydrophobic monomer units comprising 1-octene;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof.
A method for reducing mist formation in a high shear aqueous system which involves application of an aqueous composition to said high shear system, comprising:
- including in said aqueous composition, a water-dispersible, mist suppressing copolymer comprising
- (A) hydrophobic monomer units comprising at least one ethylenically unsaturated hydrocarbon or such hydrocarbon having a hydrocarbyl substituent, said monomer units containing 3 to about 30 carbon atoms;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof;
- wherein said mist suppressing copolymer imparts aerosol control or particulate control in combination with shear stability to said fluid, whereby said composition sustains a shear rate range of from 1 to 1,000,000 s−1, and sustains a shear stress range of from 1 Pa to 500,000 Pa.
A method for lubricating a metal workpiece in a cutting operation, comprising:
- supplying to said workpiece a composition comprising (a) water and (b) a water-dispersible, mist suppressing copolymer comprising
- (A) hydrophobic monomer units comprising linear or branched alpha olefins of 6 to about 18 carbon atoms;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof.
A method for lubricating a metal workpiece in a cutting operation, comprising:
- supplying to said workpiece a composition comprising (a) water and (b) a water-dispersible, mist suppressing copolymer comprising
- (A) hydrophobic monomer units comprising at least one ethylenically unsaturated hydrocarbon or such hydrocarbon having a hydrocarbyl substituent, said monomer units containing 3 to about 30 carbon atoms;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof;
- wherein said mist suppressing copolymer imparts aerosol control or particulate control in combination with shear stability to said composition, whereby said composition sustains a shear rate range of from 1 to 1,000,000 s−1, and sustains a shear stress range of from 1 pascal to 500,000 pascals.
An oil-in-water emulsion comprising water, oil, and a water-dispersible mist suppressing copolymer comprising:
- (A) hydrophobic monomer units comprising 1-octene;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof.
An oil-in-water emulsion comprising water, oil, and a water-dispersible mist suppressing copolymer comprising:
- (A) hydrophobic monomer units comprising at least one ethylenically unsaturated hydrocarbon or such hydrocarbon having a hydrocarbyl substituent, said monomer units containing 3 to about 30 carbon atoms;
- and
- (B) hydrophilic monomer units comprising at least one polymerizable sulfonic acid or salt thereof;
- wherein said mist suppressing copolymer imparts aerosol control or particulate control in combination with shear stability to said emulsion, whereby said fluid sustains a shear rate range of from 1 to 1,000,000 s−1, and sustains a shear stress range of from 1 Pa to 500,000 Pa.
Dependencies are inferred from the claim text.