US3671012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grease compositions containing polymers
Assignee: ConocoPhillips Co
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Filing: 1970-03-16
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Granted: 1972-06-20
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Expires: 1990-03-16
Abstract
Abstract This disclosure concerns compositions comprising a major amount (e.g. at least 75 weight percent) of a thixotropic, grease-like composition consisting essentially of a nonvolatile diluent oil, an oil-soluble dispersing agent, an alkaline earth metal carbonate and a minor amount (e.g. 0.1 to 25 weight percent) of a polymer. The composition is particularly useful as a lubricating grease and also is useful as a rust inhibitor.
Inventors
- 👤 William P Scott
- 👤 Lynn C Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:52
CPC Classifications
C; C10; C10M; C10M5/00; C10M2201/00; C10M2201/02; C10M2201/06; C10M2201/062; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/024; C10M2205/026; C10M2205/10; C10M2205/14; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/16; C10M2207/18; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2211/00; C10M2211/06; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/14; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/08; C10M2219/082; C10N; C10N2010/00; C10N2010/04; C10N2010/08; C10N2020/00; C10N2020/01; C10N2050/00; C10N2050/10; C10N2070/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
25 words
The grease composition of claim 1 wherein the nonvolatile diluent oil is selected from the group consisting of synthetic lubricating oils and mineral lubricating oils.
Claim 2
Dependent Claim
12 words
The grease composition of claim 2 wherein the polymer is a polyterpene.
Claim 3
Dependent Claim
14 words
The grease composition of claim 2 wherein the polymer is an ethylene-vinyl acetate copolymer.
Claim 4
Dependent Claim
14 words
The grease composition of claim 2 wherein the polymer is an ethylene-isobutyl acrylate copolymer.
Claim 5
Dependent Claim
28 words
The grease composition of claim 2 wherein it contains from about 95 to about 99.5 parts thixotropic, grease-like composition and from about 0.5 to about 5 parts polymer.
Claim 6
Dependent Claim
24 words
The grease composition of claim 6 wherein the polymer is selected from the group consisting of polyterpenes, ethylene-vinyl acetate copolymers and ethylene-isobutyl acrylate copolymers.
Claim 7
Dependent Claim
12 words
The grease composition of claim 7 wherein the polymer is a polyterpene.
Claim 8
Dependent Claim
14 words
The grease composition of claim 7 wherein the polymer is an ethylene-vinyl acetate copolymer.
Claim 9
Dependent Claim
14 words
The grease composition of claim 7 wherein the polymer is an ethylene-isobutyl acrylate copolymer.
Claim 10
Dependent Claim
122 words
An improved grease composition comprising, in parts by weight: I. from about 75 to about 99.9 parts of a thixotropic, grease-like composition consisting essentially of: a. from about 30 to about 70 parts mineral lubricating oil, b. from about 6 to about 35 parts calcium salt of an oil-soluble sulfonic acid, c. from about 5 to about 30 parts calcium carbonate, and II. from about 0.1 to about 25 parts of polymer selected from the group consisting of polyterpenes, ethylene-vinyl acetate copolymers, and ethylene-isobutyl acrylate copolymers, said polymer having the following properties: a crystallinity of less than 50 percent, a molecular weight in the range of from about 3,000 to about 1 million, and a high solubility in predominantly aliphatic hydrocarbon solvents.
Claim 11
Dependent Claim
28 words
The grease composition of claim 11 wherein it contains from about 95 to about 99.5 parts thixotropic, grease-like composition and from about 0.5 to about 5 parts polymer.
Claim 12
Dependent Claim
12 words
The grease composition of claim 12 wherein the polymer is a polyterpene.
Claim 13
Dependent Claim
14 words
The grease composition of claim 12 wherein the polymer is an ethylene-vinyl acetate copolymer.
Claim 14
Dependent Claim
14 words
The grease composition of claim 12 wherein the polymer is an ethylene-isobutyl acrylate copolymer.
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |