US5130036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorous amine lubricant additives
Assignee: Elco Corp
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Filing: 1990-05-18
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Granted: 1992-07-14
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Expires: 2010-05-18
Abstract
Abstract Lubricant additives are producd by reacting an alkoxplated amine with phosphorous acid. The additives preferably also contain a boron moiety which is reacted with the phosphorous acid and amine, preferably in a one step reaction. More preferably, a mono-functional alcohol or a long-chain aliphatic carboxylic acid is added to this mixture. The additives are particularly useful in metalworking oils and particularly as extreme pressure additives to replace the currently used chlorinated paraffin additives.
Inventors
- 👤 Gerald D. Burt
- 👤 Randolph A. McDonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:31
CPC Classifications
C; C10; C10M; C10M173/00; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/091; C10M125/00; C10M125/24; C10M125/26; C10M129/00; C10M129/02; C10M129/04; C10M129/06; C10M129/26; C10M129/28; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M137/00; C10M137/02; C10M139/00; C10M159/00; C10M159/12; C10M159/123; C10M2201/00; C10M2201/02; C10M2201/085; C10M2201/087; C10M2201/10; C10M2201/102; C10M2201/105; C10M2207/00; C10M2207/02; C10M2207/021; C10M2207/10; C10M2207/12; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/12; C10M2223/121; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/062; C10M2227/063; C10M2227/065; C10M2227/066; C10N; C10N2040/00; C10N2040/02; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
122 words
A lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR7## wherein R is a C 6 to C 30 hydrocarbon group or an alkoxylated C 6 to C 30 hydrocarbon group, R' is a C 1 to C 6 alkylene group and R" is individually hydrogen or a C 1 to C 6 hydrocarbon group, W is 0 or 1 and x, y and z are each integers of from 0 to 10, at least one of which is not 0, with (b) phosphorous acid; wherein said reaction is carried out at a temperature of about 50° to 250° C. and the molar ratio of alkoxylated amine to phosphorous acid is about 0.1:1 to about 10:1.
Claim 2
Dependent Claim
122 words
A lubricant additive comprising the reaction product of (a) an alkoxylated amine of the formula ##STR7## wherein R is a C 6 to C 30 hydrocarbon group or an alkoxylated C 6 to C 30 hydrocarbon group, R' is a C 1 to C 6 alkylene group and R" is individually hydrogen or a C 1 to C 6 hydrocarbon group, W is 0 or 1 and x, y and z are each integers of from 0 to 10, at least one of which is not 0, with (b) phosphorous acid; wherein said reaction is carried out at a temperature of about 50° to 250° C. and the molar ratio of alkoxylated amine to phosphorous acid is about 0.1:1 to about 10:1.
Claim 3
Dependent Claim
21 words
A product according to claim 1, wherein the molar ratio of amine compound to said phosphorous acid is 0.5:1 to 2:1.
Claim 4
Dependent Claim
49 words
A product according to claim 1, wherein said alkoxylated amine is selected from the group in which R is C 10 to C 20 hydrocarbon, R' is hydrogen, methyl or a mixture thereof, R' .sbsp.a C 1 to C 3 alkylene and x, y and z are each 1.
Claim 5
Dependent Claim
12 words
A product according to claim 3, wherein said alkoxylated amine is bis(2-hydroxypropyl)tallowamine.
Claim 6
Dependent Claim
22 words
A lubricant composition comprising a major proportion of a lubricating oil and a friction reducing amount of a product of claim 1.
Claim 7
Dependent Claim
18 words
A lubricant composition according to claim 5, wherein said lubricating oil is a soluble oil emulsifiable in water.
Claim 8
Dependent Claim
20 words
A lubricant composition according to claim 5, wherein the pH of said product is adjusted to about 5.5 to 7.
Claim 9
Dependent Claim
24 words
A composition according to claim 5, wherein said product is present in the oil in an amount of about 0.1 to 10 weight percent.
Claim 10
Dependent Claim
24 words
A method of lubricating a metalworking operation comprising performing said operation in the presence of a lubricating oil containing the product of claim 1.
Claim 11
Dependent Claim
14 words
A method according to claim 9, wherein said operation is an extreme pressure operation.
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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) | 1995-07-14 | 1996-01-13 | 1996-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-14 | 2000-01-13 | 2000-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-14 | 2004-01-13 | 2004-07-14 | $7700.00 | Window Closed / Lapsed |