US4002569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil composition containing aminoester dispersant
Assignee: Texaco Inc
•
Filing: 1974-12-02
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Granted: 1977-01-11
•
Expires: 1994-12-02
Abstract
Abstract Amino ester products, useful as additives to lubricating oils, may be prepared by reaction of an alpha-nitroketone and a tertiary aminoalcohol.
Inventors
- 👤 Isaac D. Rubin
- 👤 Richard F. Love
- 👤 Charles B. Holder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:00
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C07; C07C; C07C69/00; C08; C08F; C08F8/00; C08F8/30; C08F2800/00; C08F2800/10; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
68 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of an aminoester ##STR16## wherein R, R'", and R iv are saturated hydrocarbon, and R" is divalent saturated hydrocarbon, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 2
Dependent Claim
68 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of an aminoester ##STR16## wherein R, R'", and R iv are saturated hydrocarbon, and R" is divalent saturated hydrocarbon, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 3
Dependent Claim
27 words
A composition as claimed in claim 1. wherein said aminoester is present in said composition in an amount of 0.1-10 parts per 100 parts of lubricating oil.
Claim 4
Dependent Claim
29 words
A composition as claimed in claim 1 including 100 parts of a petroleum base lubricating oil and 0.1-10 parts of the N,N-dimethylaminoethyl ester of nitroketonized ethylene-propylene-third monomer hydrocarbon terpolymer.
Claim 5
Dependent Claim
33 words
A composition as claimed in claim 1 wherein said aminoester is an ethylene-propylene-third monomer hydrocarbon terpolymer containing pendant carbo-N,N-di(lower alkyl) amino alkoxy groups, said terpolymer having a molecular weight M n of 300-1000,000.
Claim 6
Dependent Claim
50 words
A concentrate containing in inert diluent-solvent an aminoester ##STR17## wherein R, R'", and R iv are saturated hydrocarbon and R" is divalent saturated hydrocarbon, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone of 1-100:1.
Claim 7
Dependent Claim
50 words
A concentrate containing in inert diluent-solvent an aminoester ##STR17## wherein R, R'", and R iv are saturated hydrocarbon and R" is divalent saturated hydrocarbon, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone of 1-100:1.
Claim 8
Dependent Claim
85 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of 0.1-10 parts per 100 parts of lubricating oil of an aminoester ##STR18## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 9
Dependent Claim
85 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of 0.1-10 parts per 100 parts of lubricating oil of an aminoester ##STR18## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 10
Dependent Claim
18 words
A composition as claimed in claim 6 wherein said R is derived from an ethylene-propylene-third monomer hydrocarbon terpolymer.
Claim 11
Independent Claim
86 words
The method of improving the dispersancy of a petroleum base lubricating oil of lubricating viscosity which comprises adding to said oil a dispersing amount of 0.1-10 parts per 100 parts of lubricating oil of an aminoester ##STR19## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 12
Independent Claim
86 words
The method of improving the dispersancy of a petroleum base lubricating oil of lubricating viscosity which comprises adding to said oil a dispersing amount of 0.1-10 parts per 100 parts of lubricating oil of an aminoester ##STR19## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 13
Dependent Claim
17 words
The method as claimed in claim 8 wherein R is derived from an ethylene-propylene-third monomer hydrocarbon terpolymer.
Claim 14
Independent Claim
87 words
The method of improving the viscosity index of a petroleum base lubricating oil of lubricating viscosity which comprises adding to said oil a viscosity-index improving amount of 0.5-3 parts per 100 parts of said oil of an aminoester ##STR20## wherein R'" and R iv are saturated hydrocarbon, R" is saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 15
Independent Claim
87 words
The method of improving the viscosity index of a petroleum base lubricating oil of lubricating viscosity which comprises adding to said oil a viscosity-index improving amount of 0.5-3 parts per 100 parts of said oil of an aminoester ##STR20## wherein R'" and R iv are saturated hydrocarbon, R" is saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 16
Dependent Claim
17 words
The method as claimed in claim 10 wherein R is derived from an ethylene-propylene-third monomer hydrocarbon terpolymer.
Claim 17
Dependent Claim
88 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a viscosity index improving amount of 0.5-3 parts per 100 parts of lubricating oil of an aminoester polymer ##STR21## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 18
Dependent Claim
88 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a viscosity index improving amount of 0.5-3 parts per 100 parts of lubricating oil of an aminoester polymer ##STR21## wherein R'" and R iv are saturated hydrocarbon, R" is divalent saturated hydrocarbon, and R is a polymer-derived moiety having a hydrocarbyl backbone, said aminoester having been prepared by reacting an alpha nitroketone with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 19
Dependent Claim
17 words
A composition as claimed in claim 12 wherein R is derived from an ethylene-propylene-third monomer hydrocarbon terpolymer.
Claim 20
Dependent Claim
71 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of an aminoester bearing pendant groups of the formula ##STR22## on a hydrocarbyl backbone of ethylene-propylene-1,4-hexadiene terpolymer, said aminoester having been prepared by reacting an ethylene-propylene-1,4-hexadiene terpolymer bearing pendant alpha nitroketone group with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
Claim 21
Dependent Claim
71 words
A lubricating oil composition comprising a major portion of a petroleum base lubricating oil of lubricating viscosity and admixed therewith a dispersing amount of an aminoester bearing pendant groups of the formula ##STR22## on a hydrocarbyl backbone of ethylene-propylene-1,4-hexadiene terpolymer, said aminoester having been prepared by reacting an ethylene-propylene-1,4-hexadiene terpolymer bearing pendant alpha nitroketone group with a tertiary amino alcohol in mole ratio, of tertiary amino alcohol to nitroketone, of 1-100:1.
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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) | 1980-01-11 | 1980-07-12 | 1981-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-11 | 1984-07-12 | 1985-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-11 | 1988-07-12 | 1989-01-11 | $7700.00 | Window Closed / Lapsed |