US3966620A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant compositions
Assignee: SOLOMON JACK D
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Filing: 1975-08-11
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Granted: 1976-06-29
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Expires: 1995-08-11
Abstract
Abstract The invention provides lubricant compositions containing (1) a product of reaction between an alkenylsuccinic anhydride and trishydroxymethylaminomethane and (2) an anti-rust amount of 1,1'-binaphthol.
Inventors
- 👤 Robert F. Bridger
- 👤 Albert L. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:15
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/025; C10M2207/028; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/34; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; F; F02; F02F; F02F7/00; F02F7/006
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
A lubricant composition comprising (1) a major proportion of a lubricant, (2) from about 0.5% to about 30% by weight of the product of reaction between (a) a polyalkenylsuccinic anhydride or acid, wherein the polyalkenyl has a number average molecular weight of from about 200 to about 4,000 and (b) trishydroxymethylaminomethane and (3) an antirust amount of a bi-naphthol.
Claim 2
Dependent Claim
59 words
A lubricant composition comprising (1) a major proportion of a lubricant, (2) from about 0.5% to about 30% by weight of the product of reaction between (a) a polyalkenylsuccinic anhydride or acid, wherein the polyalkenyl has a number average molecular weight of from about 200 to about 4,000 and (b) trishydroxymethylaminomethane and (3) an antirust amount of a bi-naphthol.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein the bi-naphthol is 1,1'-bi-2-naphthol.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein the polyalkenyl has a number average molecular weight of 1,400.
Claim 5
Dependent Claim
11 words
The composition of claim 1 having additionally therein a metal organosulfonate.
Claim 6
Dependent Claim
14 words
The composition of claim 4 wherein the metal organosulfonate is an overbased metal organosulfonate.
Claim 7
Dependent Claim
15 words
The composition of claim 5 wherein the overbased metal sulfonate is calcium alkyl benzene sulfonate.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein the lubricant comprises a lubricating oil.
Claim 9
Dependent Claim
11 words
The composition of claim 1 wherein the lubricant comprises a grease.
Claim 10
Dependent Claim
14 words
The composition of claim 7 wherein the lubricating oil is a mineral lubricating oil.
References Cited (Backward Citations)
US3897350A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-29 | 1979-12-29 | 1980-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-29 | 1983-12-29 | 1984-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-29 | 1987-12-29 | 1988-06-29 | $7700.00 | Window Closed / Lapsed |