US4626368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Benzotriazole derivatives and organic compositions containing same
Assignee: Mobil Oil AS
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Filing: 1985-12-10
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Granted: 1986-12-02
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Expires: 2005-12-10
Abstract
Abstract Benzotriazole or a substituted benzotriazole when reacted with alkyl aldehydes and dialkylhydrogen phosphites provide products which improve the load-carrying, antiwear properties of lubricant oils and greases.
Inventors
- 👤 Angeline B. Cardis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:18
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6515; C07F9/6518; C07F9/65188; C10M129/00; C10M129/02; C10M129/24; C10M133/00; C10M133/02; C10M133/38; C10M133/44; C10M159/00; C10M159/12; C10M159/123; C10M2207/00; C10M2207/08; C10M2215/00; C10M2215/22; C10M2215/223; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2227/00
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
99 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor load-carrying/antiwear amount of a product of reaction obtained by reacting a C 1 -C 8 hydrocarbyl aldehyde and a dihydrocarbyl phosphite having from 1 to about 30 carbon atoms in each hydrocarbyl moiety with a benzotriazole having the following generalized structural formula: ##STR3## where R is H or hydrocarbyl having from 1 to about 12 carbon atoms, the reaction being carried out under ambient pressure at from about 70° to about 120° C. in substantially molar ratios of reactants.
Claim 2
Dependent Claim
99 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor load-carrying/antiwear amount of a product of reaction obtained by reacting a C 1 -C 8 hydrocarbyl aldehyde and a dihydrocarbyl phosphite having from 1 to about 30 carbon atoms in each hydrocarbyl moiety with a benzotriazole having the following generalized structural formula: ##STR3## where R is H or hydrocarbyl having from 1 to about 12 carbon atoms, the reaction being carried out under ambient pressure at from about 70° to about 120° C. in substantially molar ratios of reactants.
Claim 3
Dependent Claim
21 words
The composition of claim 1 in which said aldehyde is an alkyl aldehyde and said phosphite is a dialkyl hydrogen phosphite.
Claim 4
Dependent Claim
11 words
The composition of claim 2 in which the benzotriazole is tolutriazole.
Claim 5
Dependent Claim
18 words
The composition of claim 3 in which the aldehyde is paraformaldehyde and the phosphite is dibutyl hydrogen phosphite.
Claim 6
Dependent Claim
18 words
The composition of claim 3 in which the aldehyde is paraformaldehyde and the phosphite is di-(2-ethyl-hexyl) hydrogen phosphite.
Claim 7
Dependent Claim
13 words
The composition of claim 2 in which the phosphite is dilauryl hydrogen phosphite.
Claim 8
Dependent Claim
13 words
The composition of claim 2 in which the phosphite is dioleyl hydrogen phosphite.
Claim 9
Dependent Claim
22 words
The composition of claim 1 in which the oil of lubricating viscosity is selected from mineral oils, synthetic oils and mixtures thereof.
Claim 10
Dependent Claim
13 words
The composition of claim 1 in which said major amount is a grease.
Claim 11
Dependent Claim
25 words
The composition of claim 1 in which said minor amount is at least about 0.1 wt. % based on the total weight of the composition.
Claim 12
Dependent Claim
77 words
A lubricant additive product of reaction obtained by reacting a C 1 -C 8 alkyl aldehyde and a dialkyl hydrogen phosphite having from 1 to about 30 carbon atoms per alkyl moiety with benzotriazole having the following generalized structural formula: ##STR4## where R is H or hydrocarbyl having from 1 to about 12 carbon atoms, the reaction being carried out under ambient pressure at from about 70° to about 120° C. in substantially molar ratios of reactants.
Claim 13
Dependent Claim
77 words
A lubricant additive product of reaction obtained by reacting a C 1 -C 8 alkyl aldehyde and a dialkyl hydrogen phosphite having from 1 to about 30 carbon atoms per alkyl moiety with benzotriazole having the following generalized structural formula: ##STR4## where R is H or hydrocarbyl having from 1 to about 12 carbon atoms, the reaction being carried out under ambient pressure at from about 70° to about 120° C. in substantially molar ratios of reactants.
Claim 14
Dependent Claim
18 words
The product of claim 11 in which the reactants are selected from paraformaldehyde, dibutyl hydrogen phosphite and tolutriazole.
Claim 15
Dependent Claim
19 words
The product of claim 11 in which the reactants are selected from paraformaldehyde, di-(2 ethylhexyl) hydrogen phosphite and tolutriazole.
Claim 16
Dependent Claim
15 words
The product of claim 11 in which the phosphite is selected from dilauryl hydrogen phosphite.
Claim 17
Dependent Claim
15 words
The product of claim 11 in which the phosphite is selected from dioleyl hydrogen phosphite.
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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) | 1989-12-01 | 1990-06-02 | 1990-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-01 | 1994-06-02 | 1994-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-01 | 1998-06-02 | 1998-12-02 | $7700.00 | Window Closed / Lapsed |