US4263156A
Expired / Lapsed
US
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Grease compositions
Assignee: Shell USA Inc
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Filing: 1979-12-21
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Granted: 1981-04-21
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Expires: 1999-12-21
Abstract
Abstract Grease compositions containing a composite polyurea grease thickener are disclosed.
Inventors
- 👤 Gerard P. Caruso
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:22
CPC Classifications
C; C10; C10M; C10M119/00; C10M119/24; C10M2215/00; C10M2215/10; C10M2215/102; C10M2217/00; C10M2217/04; C10M2217/044; C10M2217/045
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
161 words
A grease composition comprising a lubricating oil base vehicle and a minor amount of the product obtained by reacting a monoamine (A) having the formula NH 2 R 1 , wherein R 1 is hydrocarbyl containing 3 to 30 carbon atoms, a monoamine (B) having the formula ##STR2## wherein R 2 is hydrocarbyl containing 6 through 12 carbon atoms, and R 3 is hydrocarbyl containing 8 through 12 carbon atoms, the amount of (B) being employed, with respect to (A), being from about 5 percent to about 50 percent, by weight, based on the total weight of (A) and (B), with a compound (C) having the formula NH 2 --C 2 H 4 NH 2 and a compound (D) having the formula OCN--R 4 --NCO, wherein R 4 is hydrocarbylene having from 2 to 30 carbon atoms, the ratio of the total moles of monoamine and the moles of (C) and (D), (A+B):(C):(D), being from about 1.1 to 17:1:2 to 10.
Claim 2
Dependent Claim
161 words
A grease composition comprising a lubricating oil base vehicle and a minor amount of the product obtained by reacting a monoamine (A) having the formula NH 2 R 1 , wherein R 1 is hydrocarbyl containing 3 to 30 carbon atoms, a monoamine (B) having the formula ##STR2## wherein R 2 is hydrocarbyl containing 6 through 12 carbon atoms, and R 3 is hydrocarbyl containing 8 through 12 carbon atoms, the amount of (B) being employed, with respect to (A), being from about 5 percent to about 50 percent, by weight, based on the total weight of (A) and (B), with a compound (C) having the formula NH 2 --C 2 H 4 NH 2 and a compound (D) having the formula OCN--R 4 --NCO, wherein R 4 is hydrocarbylene having from 2 to 30 carbon atoms, the ratio of the total moles of monoamine and the moles of (C) and (D), (A+B):(C):(D), being from about 1.1 to 17:1:2 to 10.
Claim 3
Dependent Claim
32 words
The composition of claim 1 wherein the amount of (B), with respect to (A), is from 10 percent to 50 percent, by weight, based on the total weight of (A) and (B).
Claim 4
Dependent Claim
31 words
The composition of claim 2 wherein the ratio of the total moles of monoamine (A+B) and the moles of (C) and (D), (A+B):(C):(D), is from about 5.5 to 6.5:1:3.5 to 4.5.
Claim 5
Dependent Claim
11 words
The composition of claim 3 wherein the monoamine(B) is 10-phenyloctadecyl amine.
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) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |