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US 4,461,712 AGranted
Substantially neutral aqueous lubricant
AssigneeAmerican Polywater Corporation
InventorNelson Jonnes
Life of this patent
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Abstract
A substantially neutral aqueous lubricant comprising a major portion of water, a polyelectrolyte acrylate compound, a fatty acid compound, a polyalkyleneoxide compound and a C.sub.1-6 alcohol, methods to make the lubricant and methods of its use.
Claims20
An aqueous gel lubricant which comprises:
- (a) a major proportion of water;
- (b) an effective gelling amount of a polymeric polyelectrolyte acrylate compound having a molecular weight of at least about 1,000;
- (c) an effective lubricating amount of a fatty acid salt compound;
- and
- (d) an effective lubricating amount of polyalkylene oxide having a molecular weight of at least about 300,000;
- wherein the pH of the aqueous gel lubricant is about neutral.
3 more elements
A method to formulate an aqueous gel lubricant which comprises:
- (a) forming an aqueous solution of about 0.1 to 100 parts of a polymeric polyelectrolyte acrylate compound per 1,000 parts of water;
- (b) forming a solution of about 10 to 100 parts of a fatty acid compound per 10 parts of water or a C.sub.1-6 hydroxy compound;
- (c) forming a suspension of about 10 to 50 parts polyalkylene oxide per 10 parts of C.sub.1-6 alcohol;
- and
- (d) combining the aqueous solution of acrylate compound in (a), the solution of the fatty acid salt compound of (b) and the suspension of the polyalkylene oxide of (c) to form the aqueous gelled lubricant containing a major proportion of water, the polymeric polyelectrolyte acrylate compound, about 1 to 10 parts of the fatty acid compound, about 0.05 to 10 parts of the alkyleneoxide compound and about 1 to 30 parts of alkanol each per part of the acrylate compound, wherein the aqueous gel lubricant has a pH about neutral.
2 more elements
An aqueous gelled lubricant which consists essentially of:
- (a) a major proportion of water;
- (b) a polymer polyelectrolyte acrylate compound;
- (c) about 1 to about 10 parts of the potassium salt of a C.sub.12-24 unsaturated fatty acid;
- (d) about 0.1 to about 1 part of polyethyleneoxide having a molecular weight of about 4,000,000;
- and
- (e) 1 to 30 parts of isopropanol;
- each per part of the acrylate compound, wherein the pH of the aqueous gel lubricant is about 6.4 to 7.
4 more elements
Dependencies are inferred from the claim text.