Patent US4302850A successfully refreshed from Google Patents.
Patent US4256595A successfully refreshed from Google Patents.
US4256595A
Expired / Lapsed
US
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Diesel lubricant composition containing 5-amino-triazole-succinic anhydride reaction product
Assignee: Afton Chemical Additives Corp
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Filing: 1979-11-05
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Granted: 1981-03-17
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Expires: 1999-11-05
Abstract
Abstract A diesel crankcase lubricant composition comprising a lubricating oil base and the reaction product of a hydrocarbyl succinic anhydride in which the hydrocarbyl radical has from 12 to 30 carbon atoms and 5-amino-triazole is provided.
Inventors
- 👤 Rodney L. Sung
- 👤 Benjamin H. Zoleski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:51
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/02; C10M133/38; C10M133/44; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10N; C10N2040/00; C10N2040/25; C10N2040/252; C10N2040/253; F; F02; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
76 words
A diesel crankcase lubricant composition comprising a diesel lubricating oil and from about 0.25 to 2.0 weight percent of the reaction product of a hydrocarbyl succinic anhydride in which the hydrocarbyl radical has from about 12 to 30 carbon atoms and 5-aminotriazole, said reaction product being prepared by reacting from 0.75 to 1.25 moles of said 5-aminotriazole with a mole of said hydrocarbyl succinic anhydride at a temperature ranging from room temperature to about 150° C.
Claim 2
Dependent Claim
76 words
A diesel crankcase lubricant composition comprising a diesel lubricating oil and from about 0.25 to 2.0 weight percent of the reaction product of a hydrocarbyl succinic anhydride in which the hydrocarbyl radical has from about 12 to 30 carbon atoms and 5-aminotriazole, said reaction product being prepared by reacting from 0.75 to 1.25 moles of said 5-aminotriazole with a mole of said hydrocarbyl succinic anhydride at a temperature ranging from room temperature to about 150° C.
Claim 3
Dependent Claim
31 words
A composition according to claim 1 wherein the hydrocarbyl succinic anhydride has the formula ##STR3## wherein R is a monovalent aliphatic hydrocarbon radical having from about 12 to 30 carbon atoms.
Claim 4
Dependent Claim
14 words
A composition according to claim 1 wherein the reaction product has the formula ##STR4##
Claim 5
Dependent Claim
23 words
A composition according to claim 3 wherein the reaction product is a mixture of compounds having the formulae set forth in claim 3.
Claim 6
Dependent Claim
22 words
A composition according to claim 1 wherein said reaction product is present in an amount of between 0.5 and 1.5 weight percent.
Claim 7
Dependent Claim
19 words
A composition according to claim 5 wherein there is at least 0.75 percent by weight of said reaction product.
Claim 8
Dependent Claim
22 words
A composition according to claim 6 wherein said reaction product is present in an amount of at least 1 percent by weight.
Claim 9
Dependent Claim
36 words
A composition according to claim 1 wherein said reaction product comprises a product of the formula ##STR5## or a mixture thereof and said reaction product is present in an amount of 0.25 to 2.0 weight percent.
Claim 10
Dependent Claim
21 words
A composition according to claim 8 wherein said compound is present in an amount of at least 1 percent by weight.
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |