US4522733A
Expired / Lapsed
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Substantially neutral aqueous lubricant
Assignee: American Polywater Corp
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Filing: 1984-07-23
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Granted: 1985-06-11
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Expires: 2004-07-23
Abstract
Abstract A substantially neutral aqueous lubricant comprising a major portion of water, a polyelectrolyte acrylate compound, a fatty acid compound, a polyacrylamide compound and a C 1-6 alcohol, methods to make the lubricant and methods of its use.
Inventors
- 👤 Nelson Jonnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 05:23
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/022; C10M2207/023; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/129; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/106; C10N; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
70 words
An aqueous 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 polyacrylamide having a molecular weight of at least about 300,000; wherein the pH of the aqueous gel lubricant is about neutral.
Claim 2
Dependent Claim
70 words
An aqueous 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 polyacrylamide having a molecular weight of at least about 300,000; wherein the pH of the aqueous gel lubricant is about neutral.
Claim 3
Dependent Claim
21 words
The aqueous lubricant of claim 1 wherein the lubricant further comprises an effective antioxidant solubilizing amount of a C 1-6 alcohol.
Claim 4
Dependent Claim
24 words
The aqueous lubricant of claim 1 wherein the polymeric polyelectrolyte acrylate compound is polyacrylic acid having a molecular weight of at least about 3,000.
Claim 5
Dependent Claim
21 words
The aqueous lubricant of claim 1 wherein the fatty acid salt compound is a C 12-24 unsaturated fatty acid salt compound.
Claim 6
Dependent Claim
26 words
The aqueous lubricant of claim 3 wherein the C 12-24 unsaturated fatty acid salt compound is a potassium salt of a C 12-24 unsaturated fatty acid.
Claim 7
Dependent Claim
33 words
The aqueous lubricant of claim 1 wherein the polyacrylamide compound comprises a copolymer of acrylamide and an acrylic monomer having a pendant carboxyl group, having a molecular weight of about 300,000 to 4,000,000.
Claim 8
Dependent Claim
22 words
The aqueous lubricant of claim 2 wherein the C 1-6 alcohol is ethanol, ethylene glycol, glycerine, propylene glycol, n-hexanol, or mixtures thereof.
Claim 9
Dependent Claim
19 words
The aqueous lubricant of claim 6 wherein the C 1-6 alcohol is isopropyl alcohol, propylene glycol or mixtures thereof.
Claim 10
Dependent Claim
16 words
The aqueous lubricant of claim 1 wherein the lubricant has a pH about 6.5 to 8.0.
Claim 11
Dependent Claim
86 words
The aqueous lubricant of claim 1 which comprises: (a) a major portion of water; (b) the polymeric polyelectrolyte acrylate compound; (c) about 1 to 20 parts by weight of the potassium salt of a C 16-20 fatty acid; (d) about 0.05 to 10 parts by weight of a polyacrylamide compound; (e) about 1 to 40 parts by weight of a C 1-6 alcohol compound; each per part of the polymeric polyelectrolyte acrylate compound, wherein the aqueous gel lubricant has a pH of about 6.4 to 8.0.
Claim 12
Independent Claim
171 words
A method to formulate an aqueous 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 1-6 hydroxy compound; (c) forming a suspension of about 10 to 50 parts of a polyacrylamide per 10 parts of water or a C 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 polyacrylamide of (c) to form the aqueous gelled lubricant containing a major proportion of water, the polymeric polyelectrolyte acrylate compound, about 1 to 20 parts of the fatty acid compound, about 0.05 to 10 parts of the polyacrylamide compound and about 1 to 40 parts of alkanol each per part of the acrylate compound, wherein the aqueous lubricant has a pH about 6.5 to 8.0.
Claim 13
Independent Claim
171 words
A method to formulate an aqueous 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 1-6 hydroxy compound; (c) forming a suspension of about 10 to 50 parts of a polyacrylamide per 10 parts of water or a C 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 polyacrylamide of (c) to form the aqueous gelled lubricant containing a major proportion of water, the polymeric polyelectrolyte acrylate compound, about 1 to 20 parts of the fatty acid compound, about 0.05 to 10 parts of the polyacrylamide compound and about 1 to 40 parts of alkanol each per part of the acrylate compound, wherein the aqueous lubricant has a pH about 6.5 to 8.0.
Claim 14
Dependent Claim
21 words
The method of claim 11 wherein the acrylate gelling compound is a polyacrylic acid having a molecular weight of about 4,000.
Claim 15
Dependent Claim
19 words
The method of claim 11 wherein the fatty acid compound comprises a C 12-24 unsaturated fatty acid salt compound.
Claim 16
Dependent Claim
22 words
The method of claim 13 wherein the unsaturated fatty acid salt compound comprises the potassium salt of a C 12-24 fatty acid.
Claim 17
Dependent Claim
20 words
The method of claim 11 wherein the polyalkylene oxide comprises polyacrylamide having a molecular weight of about 300,000 to 4,000,000.
Claim 18
Dependent Claim
26 words
The method of claim 11 wherein the C 1-6 hydroxy compound is ethanol, ethylene glycol, and butanol, tertiary butanol, propylene glycol, glycerol, n-hexanol, or mixtures thereof.
Claim 19
Dependent Claim
17 words
The method of claim 9 wherein the C 1-6 alcohol is isopropanol, propylene glycol or mixtures thereof.
Claim 20
Dependent Claim
90 words
An aqueous lubricant which consists essentially of: (a) a major proportion of water; (b) a polymer polyelectrolyte acrylate compound; (c) about 1 to about 20 parts of the potassium salt of a C 12-24 unsaturated fatty acid; (d) about 0.1 to about 1 part of a copolymer of acrylamide and acrylic acid, methacrylic acid or alkali metal salts thereof; and (e) 1 to 40 parts of a C 1-6 alcohol compound; each per part of the acrylate compound, wherein the pH of the aqueous lubricant is about 6.4 to 8.0.
Claim 21
Dependent Claim
90 words
An aqueous lubricant which consists essentially of: (a) a major proportion of water; (b) a polymer polyelectrolyte acrylate compound; (c) about 1 to about 20 parts of the potassium salt of a C 12-24 unsaturated fatty acid; (d) about 0.1 to about 1 part of a copolymer of acrylamide and acrylic acid, methacrylic acid or alkali metal salts thereof; and (e) 1 to 40 parts of a C 1-6 alcohol compound; each per part of the acrylate compound, wherein the pH of the aqueous lubricant is about 6.4 to 8.0.
Claim 22
Dependent Claim
34 words
A method of lubricating the installation of cable in conduit which comprises applying the lubricant of claim 1 to the interfaces between cable and conduit during the introduction of the cable into the conduit.
Claim 23
Dependent Claim
34 words
A method of lubricating the installation of cable into conduit which comprises applying the lubricant of claim 10 to the interfaces between cable and conduit during the introduction of the cable into the conduit.
Claim 24
Dependent Claim
34 words
A method of lubricating the installation of cable into conduit which comprises applying the lubricant of claim 18 to the interfaces between cable and conduit during the introduction of the cable into the conduit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-06-10 | 1988-12-10 | 1989-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-06-10 | 1992-12-10 | 1993-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-06-10 | 1996-12-10 | 1997-06-11 | $7700.00 | Window Closed / Lapsed |