US4983310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multifunctional lubricants and multifunctional additives for lubricants
Assignee: Mobil Oil AS
•
Filing: 1988-12-30
•
Granted: 1991-01-08
•
Expires: 2008-12-30
Abstract
Abstract Hydrocarbyl thiophosphoric acid-phosphite derived olefin and polymeric olefin adducts are superior as lubricating fluid media with internal synergistic multifunctional antiwear, antioxidant properties, and as multifunctional extreme pressure/antiwear additives for both mineral and synthetic lubricating oils as well as fuels.
Inventors
- 👤 Linda A. Benjamin
- 👤 Andrew G. Horodysky
- 👤 Derek A. Law
- 👤 Shi-Ming Wu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2691; C10L10/04; C10M; C10M105/00; C10M105/02; C10M105/04; C10M105/08; C10M105/18; C10M105/32; C10M105/38; C10M105/56; C10M105/72; C10M105/74; C10M107/00; C10M107/02; C10M107/06; C10M107/08; C10M107/10; C10M107/40; C10M107/46; C10M109/00; C10M109/02; C10M111/00; C10M111/06; C10M127/00; C10M127/02; C10M129/00; C10M129/02; C10M129/16; C10M129/68; C10M129/74; C10M133/00; C10M135/00; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M143/00; C10M143/04; C10M143/06; C10M143/08; C10M159/00; C10M159/12; C10M159/123; C10M159/126; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/045; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/0245; C10M2205/026; C10M2205/0265; C10M2205/028; C10M2205/0285; C10M2205/22; C10M2205/223; C10M2207/00; C10M2207/003; C10M2207/04; C10M2207/0406; C10M2207/046; C10M2207/28; C10M2207/2805; C10M2207/283; C10M2207/2835; C10M2207/34; C10M2207/345; C10M2215/00; C10M2215/003; C10M2215/24; C10M2217/00; C10M2217/003; C10M2219/00; C10M2219/003; C10M2219/02; C10M2219/021; C10M2219/04; C10M2219/0406; C10M2219/046; C10M2219/0463; C10M2219/06; C10M2219/061; C10M2219/08; C10M2219/081; C10M2219/10; C10M2219/101; C10M2221/00; C10M2221/003; C10M2221/02; C10M2221/025; C10M2221/04; C10M2221/0405; C10M2223/00; C10M2223/003; C10M2223/02; C10M2223/023; C10M2223/04; C10M2223/0405; C10M2223/045; C10M2223/047; C10M2223/049; C10M2223/0495; C10M2223/06; C10M2223/0603; C10M2223/08; C10M2223/083; C10M2223/10; C10M2223/103; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/02; C10M2225/04; C10M2225/041
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
183 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease or other solid lubricant prepared therefrom and a minor multifunctional extreme pressure, antiwear, antioxidant and friction reducing amount of a reaction product of a polymeric olefin or functionalized olefin and an alkoxylated dihydrocarbyl dithiophosphoric acid derived phosphite wherein said phosphite reactant is selected from phosphites having the following structures: ##STR3## where R 1 is C 1 to about C 30 hydrocarbyl or where R 1 is C 1 to about C 30 hydrocarbyl containing oxygen, sulfur, or nitrogen moieties and R 2 is a divalent hydrocarbylene group containing from 2 to about 30 carbon atoms, x and y each independently equal from 1 to about 50, and z is from 1 to about 10 and wherein the molar ratio of phosphite to olefin varies from about 1:1 to about 1:3, the reaction temperature varies from about 80 to about 225° C., the pressure varies from ambient or atmospheric to slightly higher than atmospheric pressure and the reaction time varies from about 1 to about 10 hours or more.
Claim 2
Dependent Claim
183 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease or other solid lubricant prepared therefrom and a minor multifunctional extreme pressure, antiwear, antioxidant and friction reducing amount of a reaction product of a polymeric olefin or functionalized olefin and an alkoxylated dihydrocarbyl dithiophosphoric acid derived phosphite wherein said phosphite reactant is selected from phosphites having the following structures: ##STR3## where R 1 is C 1 to about C 30 hydrocarbyl or where R 1 is C 1 to about C 30 hydrocarbyl containing oxygen, sulfur, or nitrogen moieties and R 2 is a divalent hydrocarbylene group containing from 2 to about 30 carbon atoms, x and y each independently equal from 1 to about 50, and z is from 1 to about 10 and wherein the molar ratio of phosphite to olefin varies from about 1:1 to about 1:3, the reaction temperature varies from about 80 to about 225° C., the pressure varies from ambient or atmospheric to slightly higher than atmospheric pressure and the reaction time varies from about 1 to about 10 hours or more.
Claim 3
Dependent Claim
56 words
The composition of claim 1 wherein the olefins are selected from C 2 to about C 60 hydrocarbyl olefins and the polymeric olefins are selected from oligomers or polymers of said hydrocarbyl olefins containing at least one olefinic linkage or functionalized olefins containing sulfur, oxygen or nitrogen, or olefinic esters, and olefinic ethers or mixtures thereof.
Claim 4
Dependent Claim
21 words
The composition of claim 2 wherein the olefin is selected from the group consisting of polybutene, polyoctene, polydecene or mixtures thereof.
Claim 5
Dependent Claim
10 words
The composition of claim 2 wherein the olefin is polyisobutene.
Claim 6
Dependent Claim
10 words
The composition of claim 2 wherein the olefin is 1-decene.
Claim 7
Dependent Claim
19 words
The composition of claim 1 wherein the olefinic reactant is a functionalized olefin containing O, N or S moieties.
Claim 8
Dependent Claim
53 words
The composition of claim 1 wherein the olefin is a polymeric oil selected from the group consisting of polyisobutylene, polypropylene, octene or decene oligomers or mixtures thereof having at least about 20 carbon atoms and optionally containing O, S or N moieties and having a MW of from about 400 to about 4,000.
Claim 9
Dependent Claim
15 words
The composition of claim 1 wherein the phosphite has the structure therein as structure I.
Claim 10
Dependent Claim
15 words
The composition of claim 1 wherein the phosphite has the structure therein as structure II.
Claim 11
Dependent Claim
15 words
The composition of claim 1 wherein the reactants are polyisobulene and butoxylated di-O,O-ethyl phosphorodithioate of.
Claim 12
Dependent Claim
15 words
The composition of claim 1 wherein the reactants are 1-decene and butoxylated di-O,O-ethyl phosphorodithioate of.
Claim 13
Dependent Claim
49 words
The composition of claim 1 wherein the lubricant is selected from the group consisting of (1) a mineral oil (2) a synthetic oil or a mixture of synthetic oils, (3) a mixture of (1) and (2) and (4) or a grease of any one of (1), (2), or (3).
Claim 14
Dependent Claim
10 words
The composition of claim 12 wherein the lubricant is (1).
Claim 15
Dependent Claim
10 words
The composition of claim 12 wherein the lubricant is (2).
Claim 16
Dependent Claim
10 words
The composition of claim 12 wherein the lubricant is (3).
Claim 17
Dependent Claim
23 words
The composition of claim 12 wherein the lubricant is (4) a grease formulated from any of (1), (2) or (3) or mixtures thereof.
Claim 18
Dependent Claim
20 words
A lubricant composition comprising from about 10% to about 100% of a product of reaction as described in claim 1.
Claim 19
Dependent Claim
20 words
A lubricant composition comprising from about 50% to about 100% of said product of reaction as described in claim 1.
References Cited (Backward Citations)
US2957931A
Cited
US3442804A
Cited
US3390082A
Cited
DE2020455A1
Cited
US4356097A
Cited
US4584112A
Cited
US4259192A
Cited
US4532057A
Cited
US4784780A
Cited
US4834893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |