Patent US4313836A successfully refreshed from Google Patents.
US4313836A
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Water-based hydraulic fluid and metalworking lubricant
Assignee: BASF Corp
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Filing: 1980-12-01
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Granted: 1982-02-02
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Expires: 2000-12-01
Abstract
Abstract The present invention relates to the use, as a hydraulic fluid or metalworking lubricant, of compositions having water as a base and yet possessing superior lubricating and wear preventing characteristics. The fluids of the invention comprise (1) a sulfurized molybdenum or antimony compound and (2) a phosphate ester or salt thereof. The compositions can be thickened, if desired, using for instance polyglycol, polyacrylic and polyvinyl alcohol-type thickeners. The use of corrosion inhibitors, metal deactivators and other adjuvants conventional in this art is also contemplated.
Inventors
- 👤 Assadullah Nassry
- 👤 Jerrold F. Maxwell
- 👤 John W. Compton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:13
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M2201/00; C10M2201/02; C10M2201/08; C10M2201/081; C10M2201/082; C10M2201/083; C10M2201/084; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/04; C10M2207/046; C10M2207/10; C10M2207/14; C10M2207/141; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/107; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/14; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2225/00; C10M2225/02; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/10; C10N2010/12; C10N2040/00; C10N2040/08; C10N2040/20; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
191 words
A hydraulic fluid or metalworking fluid concentrate consisting essentially of: A. a sulfurized metallic compound of the formula: ##STR4## wherein M is molybdenum or antimony and wherein R is selected from the group consisting of alkyl, aryl, alkylaryl radicals and mixtures thereof having 3 to 20 carbon atoms in the alkyl group, B. a phosphate ester selected from the group consisting of ##STR5## and mixtures thereof, wherein EO represents ethylene oxide groups; R is selected from the group consisting of linear or branched chain alkyl groups having about 6 to 30 carbon atoms or alkylaryl groups wherein the alkyl groups have 6 to 30 carbon atoms; X is selected from the group consisting of hydrogen, alkali or alkaline earth metal, the residual of ammonia or an amine and mixtures thereof and n is a number from 1 to 50 and optionally C. a supplemental additive selected from the group consisting of corrosion inhibitor, thickener, and metal deactivator and mixtures thereof wherein the ratio of said phosphate ester to said sulfurized metallic compound is from about 0.1:1 to 2.5:1 by weight based upon the weight of the sulphur in said metallic compound.
Claim 2
Dependent Claim
191 words
A hydraulic fluid or metalworking fluid concentrate consisting essentially of: A. a sulfurized metallic compound of the formula: ##STR4## wherein M is molybdenum or antimony and wherein R is selected from the group consisting of alkyl, aryl, alkylaryl radicals and mixtures thereof having 3 to 20 carbon atoms in the alkyl group, B. a phosphate ester selected from the group consisting of ##STR5## and mixtures thereof, wherein EO represents ethylene oxide groups; R is selected from the group consisting of linear or branched chain alkyl groups having about 6 to 30 carbon atoms or alkylaryl groups wherein the alkyl groups have 6 to 30 carbon atoms; X is selected from the group consisting of hydrogen, alkali or alkaline earth metal, the residual of ammonia or an amine and mixtures thereof and n is a number from 1 to 50 and optionally C. a supplemental additive selected from the group consisting of corrosion inhibitor, thickener, and metal deactivator and mixtures thereof wherein the ratio of said phosphate ester to said sulfurized metallic compound is from about 0.1:1 to 2.5:1 by weight based upon the weight of the sulphur in said metallic compound.
Claim 3
Dependent Claim
13 words
The concentrate of claim 1 wherein said sulfurized metallic compound is sulfurized oxymolybdenumorganophosphorodithioate.
Claim 4
Dependent Claim
59 words
The concentrate of claim 2 including a corrosion inhibitor in an amount of about 0.05 to 2 percent by weight of the water, a thickener in an amount of about 3 to 15 percent by weight of the total composition, and a metal deactivator in an amount of about 0.05 to 2 percent by weight of the total composition.
Claim 5
Dependent Claim
30 words
A hydraulic fluid or metalworking lubricant fluid consisting essentially of the composition of claim 1 and from about 40 to 99 percent by weight water at a pH above 7.
Claim 6
Dependent Claim
14 words
The hydraulic fluid of claim 4 wherein said sulfurized metallic compound is sulfurized oxymolybdenumorganophosphorodithioate.
Claim 7
Dependent Claim
60 words
The hydraulic fluid of claim 5 including a corrosion inhibitor in an amount of about 0.05 to 2 percent by weight of the water, a thickener in an amount of about 3 to 15 percent by weight of the total composition, and a metal deactivator in an amount of about 0.05 to 2 percent by weight of the total composition.
Claim 8
Dependent Claim
29 words
A hydraulic fluid or metalworking fluid concentrate consisting essentially of the composition of claim 1 and up to about 75 percent by weight water at a pH above 7.
Claim 9
Dependent Claim
14 words
The concentrate of claim 7 wherein said sulfurized metallic compound is sulfurized oxymolybdenum organophosphorodithioate.
Claim 10
Dependent Claim
47 words
The concentrate of claim 8 wherein said phosphate ester is derived from the reaction product of 4 moles of ethylene oxide with one mole of oleyl alcohol esterified by reacting one mole of said reaction product with two moles of phosphorus pentoxide and wherein X is hydrogen.
Claim 11
Dependent Claim
66 words
The concentrate of claim 9 including a corrosion inhibitor selected from the group consisting of alkali metal benzoate, nitrate, nitrite, and amine and mixtures thereof, a polyglycol thickener selected from the group consisting of the polyether reaction product of an alkylene oxide with a linear or branched chain polyhydric alcohol and a metal deactivator selected from the group consisting of benzotriazole, tolyltriazole, 2-mercaptobenzothiazole, sodium-2-mercaptobenzothiazole, and N,N'-disalicylidine-1,2-propanediamine.
Claim 12
Dependent Claim
18 words
The concentrate of claim 10 wherein said corrosion inhibitor is mixed isopropylaminoethanol and said metal deactivator is sodium-2-mercaptobenzothiazole.
Claim 13
Dependent Claim
48 words
In a process for transmitting force hydraulically by applying a force to a confined fluid and said fluid transmits said force to an actuating means which is actuated by the force of said confined fluid, the improvement wherein said confined fluid is the hydraulic fluid of claim 4.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-01 | 1985-08-03 | 1986-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-01 | 1989-08-03 | 1990-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-01 | 1993-08-03 | 1994-02-02 | $7700.00 | Window Closed / Lapsed |