US4096077A
Expired / Lapsed
US
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Wear-inhibiting composition and process
Assignee: Ethyl Corp
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Filing: 1976-09-03
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Granted: 1978-06-20
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Expires: 1996-09-03
Abstract
Abstract Disclosed are compositions comprising a major proportion of a natural or synthetic lubricating oil and a minor proportion of an oil-soluble wear-inhibiting additive composition, said wear-inhibiting additive composition being added in wear-inhibiting amounts and comprising benzotriazole or C 1 -C 20 alkyl substituted benzotriazole and a material selected from the group consisting of at least one half-acid half-ester, half-acid half-amide, and half-acid half-thioester of succinic or maleic acid or acid anhydride and an alcohol, amine, and mercaptan, respectively, a metal salt of at least one said half-ester, half-amide, or half-thioester, and mixtures thereof, wherein the alcohol and mercaptan comprise acyclic aliphatic compounds containing from 7 to 50 carbon atoms, wherein the amine comprises a straight-chain primary or secondary amine having from 7 to 50 carbon atoms and is selected from the group consisting of monoamines and polyamines having at least 2 carbon atoms separating each pair of nitrogen atoms, and wherein said metal salt comprises a Group IIA, Group IIB, tin or lead metal salt or mixtures thereof.
Inventors
- 👤 Edward Antone Swakon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:17
CPC Classifications
C; C10; C10M; C10M141/00; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/288; C10M2207/34; C10M2207/40; C10M2207/404; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/12; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2219/00; C10M2219/06; C10M2219/062
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
167 words
A composition comprising a major proportion of a natural or synthetic lubricating oil and a minor proportion of an oil-soluble wear-inhibiting additive composition, said wear-inhibiting additive composition being added in wear-inhibiting amounts and comprising benzotriazole or C 1 -C 20 alkyl substituted benzotriazole and a material selected from the group consisting of at least one half-acid half-ester, half-acid half-amide, and half-acid half-thioester of succinic or maleic acid or acid anhydride and an alcohol, amine, and mercaptan, respectively, a metal salt of at least one said half-ester, half-amide, or half-thioester, and mixtures thereof, wherein the alcohol and mercaptan comprise acyclic aliphatic compounds containing from 7 to 50 carbon atoms, wherein the amine comprises a straight-chain primary or secondary amine having from 7 to 50 carbon atoms and is selected from the group consisting of monoamines and polyamines having at least 2 carbon atoms separating each pair of nitrogen atoms, and wherein said metal salt comprises a Group IIA, Group IIB, tin or lead metal salt or mixtures thereof.
Claim 2
Dependent Claim
167 words
A composition comprising a major proportion of a natural or synthetic lubricating oil and a minor proportion of an oil-soluble wear-inhibiting additive composition, said wear-inhibiting additive composition being added in wear-inhibiting amounts and comprising benzotriazole or C 1 -C 20 alkyl substituted benzotriazole and a material selected from the group consisting of at least one half-acid half-ester, half-acid half-amide, and half-acid half-thioester of succinic or maleic acid or acid anhydride and an alcohol, amine, and mercaptan, respectively, a metal salt of at least one said half-ester, half-amide, or half-thioester, and mixtures thereof, wherein the alcohol and mercaptan comprise acyclic aliphatic compounds containing from 7 to 50 carbon atoms, wherein the amine comprises a straight-chain primary or secondary amine having from 7 to 50 carbon atoms and is selected from the group consisting of monoamines and polyamines having at least 2 carbon atoms separating each pair of nitrogen atoms, and wherein said metal salt comprises a Group IIA, Group IIB, tin or lead metal salt or mixtures thereof.
Claim 3
Dependent Claim
22 words
The composition of claim 1 wherein the wear-inhibiting additive composition comprises a metal salt of at least one said half-ester or half-amide.
Claim 4
Dependent Claim
16 words
The composition of claim 1 wherein the alcohol, mercaptan, and amine contain only straight-chain aliphatic groups.
Claim 5
Dependent Claim
18 words
The composition of claim 1 wherein the alcohol, mercaptan, and amine contain from 8 to 24 carbon atoms.
Claim 6
Dependent Claim
12 words
The composition of claim 1 wherein the alcohol contains only hydroxy substituents.
Claim 7
Dependent Claim
20 words
The composition of claim 1 wherein the alcohol is a monohydroxy alcohol and the half-acid half-ester is a mono-acid mono-ester.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein the amine is a secondary amine.
Claim 9
Dependent Claim
12 words
The composition of claim 1 wherein the amine contains only amino substituents.
Claim 10
Dependent Claim
19 words
The composition of claim 1 wherein the amine is a monoamine, and the half-acid half-amide is a mono-acid mono-amide.
Claim 11
Dependent Claim
20 words
The composition of claim 1 wherein the polyamine has at least 3 carbon atoms separating each pair of nitrogen atoms.
Claim 12
Dependent Claim
13 words
The composition of claim 1 wherein the mercaptan contains only a thio substituent.
Claim 13
Dependent Claim
22 words
The composition of claim 1 wherein the metal of the metal salt is selected from the group consisting of calcium and zinc.
Claim 14
Dependent Claim
12 words
The composition of claim 1 wherein the wear-inhibiting additive composition contains benzotriazole.
Claim 15
Dependent Claim
22 words
The composition of claim 1 wherein the benzotriazole or substituted benzotriazole is present at about 0.002 to about 0.25 weight per cent.
Claim 16
Dependent Claim
22 words
The composition of claim 14 wherein the benzotriazole or substituted benzotriazole is present at about 0.005 to about 0.05 weight per cent.
Claim 17
Dependent Claim
25 words
The composition of claim 7 wherein the half-ester, half-amide, half-thioester, or metal salt thereof is present at about 0.025 to about 2.5 weight per cent.
Claim 18
Dependent Claim
24 words
The composition of claim 16 wherein the half-ester, half-amide, half-thioester, or metal salt thereof is present at about 0.05 to about 0.5 per cent.
Claim 19
Dependent Claim
26 words
The composition of claim 1 wherein the ratio of benzotriazole or substituted benzotriazole to half-ester, half-amide, half-thioester, or metal salts thereof is about 1:1 to 1:50.
Claim 20
Dependent Claim
24 words
The composition of claim 18 wherein the ratio of benzotriazole or substituted benzotriazole to half-ester, half-amide, half-thioester, or metal salt thereof is about 1:10.
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) | 1981-06-19 | 1981-12-19 | 1982-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-19 | 1985-12-19 | 1986-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-19 | 1989-12-19 | 1990-06-20 | $7700.00 | Window Closed / Lapsed |