US5225092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene alpha-olefin polymer substituted amine dispersant additives
Assignee: ExxonMobil Chemical Patents Inc
•
Filing: 1990-02-01
•
Granted: 1993-07-06
•
Expires: 2010-02-01
Abstract
Abstract The present invention is directed to an oil-soluble lubricating oil additive comprising at least one terminally unsaturated ethylene alpha-olefin polymer of 300 to 20,000 number average molecular weight terminally substituted with amine compounds, which are also useful additives to oleaginous compositions, e.g., as fuel and lubricating oil dispersants.
Inventors
- 👤 Jacob Emert
- 👤 Alan M. Schilowitz
- 👤 Antonio Gutierrez
- 👤 Won R. Song
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:19
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M143/00; C08; C08F; C08F8/00; C08F8/44; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C10L1/2387; C10M133/00; C10M133/02; C10M133/04; C10M133/52; C10M133/54; C10M143/02; C08F2800/00; C08F2800/10; C10M2205/00; C10M2205/02; C10M2205/022; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2227/00; C10N; C10N2040/00; C10N2040/02; C10N2040/06; C10N2040/08; C10N2040/25; C10N2040/251; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/28; C10N2040/30; C10N2040/32; C10N2040/34; C10N2040/36; C10N2040/38; C10N2040/40; C10N2040/42; C10N2040/44; C10N2040/50; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
121 words
An additive useful in oleaginous compositions which comprises an ethylene alpha-olefin polymer substituted with at least one amine compound, wherein said amine compound is directly attached to the backbone of the polymer, wherein said polymer comprises monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 18 carbon atoms, wherein said polymer has a number average molecular weight of from about 300 to 20,000 and an average of at least about 30% of said polymer chains contain terminal ethenylidene unsaturation prior to being substituted with said amine compound, and wherein said additive is characterized by a VR value of less than about 4.1.
Claim 2
Dependent Claim
121 words
An additive useful in oleaginous compositions which comprises an ethylene alpha-olefin polymer substituted with at least one amine compound, wherein said amine compound is directly attached to the backbone of the polymer, wherein said polymer comprises monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 18 carbon atoms, wherein said polymer has a number average molecular weight of from about 300 to 20,000 and an average of at least about 30% of said polymer chains contain terminal ethenylidene unsaturation prior to being substituted with said amine compound, and wherein said additive is characterized by a VR value of less than about 4.1.
Claim 3
Dependent Claim
21 words
The additive of claim 1 wherein said polymer has a number average molecular weight of between about 700 and about 20,000.
Claim 4
Dependent Claim
17 words
The additive of claim 2 wherein said number average molecular weight is between about 1500 and 10,000.
Claim 5
Dependent Claim
21 words
The additive of claim 1 wherein said polymer has a molar ethylene content of between about 20 and about 80 percent.
Claim 6
Dependent Claim
21 words
The additive of claim 1 wherein said polymer has a molar ethylene content of between about 45 and about 65 percent.
Claim 7
Dependent Claim
13 words
The additive of claim 5 wherein said VR value is less than 4.0.
Claim 8
Dependent Claim
16 words
The additive of any of claims 1 to 6 wherein said polymer comprises an ethylene-propylene copolymer.
Claim 9
Dependent Claim
99 words
An additive useful in oleaginous compositions which comprises an ethylene alpha-olefin polymer substituted with at least one amine, said polymer comprising monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 2 carbon atoms, and wherein said polymer has a number average molecular weight of from about 700 to 20,000 and an average of at least about 60% of said polymer chains contain terminal ethenylidene unsaturation and wherein said additive is characterized by a VR value of less than about 4.1.
Claim 10
Dependent Claim
99 words
An additive useful in oleaginous compositions which comprises an ethylene alpha-olefin polymer substituted with at least one amine, said polymer comprising monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 2 carbon atoms, and wherein said polymer has a number average molecular weight of from about 700 to 20,000 and an average of at least about 60% of said polymer chains contain terminal ethenylidene unsaturation and wherein said additive is characterized by a VR value of less than about 4.1.
Claim 11
Dependent Claim
17 words
The additive of claim 8 wherein said polymer contains from about 3 to 70 mole % ethylene.
Claim 12
Dependent Claim
17 words
The additive of claim 9 wherein said polymer contains from about 45 to 6 mole % ethylene.
Claim 13
Dependent Claim
12 words
The additive of claim 9 wherein said polymer comprises a ethylene-propylene copolymer.
Claim 14
Dependent Claim
21 words
The additive of claim 11 wherein said polymer has a number average molecular weight of from about 900 and about 15,000.
Claim 15
Dependent Claim
21 words
The additive of claim 12 wherein said polymer has a number average molecular weight of from about 900 and about 15,000.
Claim 16
Dependent Claim
124 words
An oil soluble dispersant mixture useful as a fuel or lubricating oil additive comprising an adduct of: (a) an ethylene alpha-olefin polymer substituted with halide moieties, said polymer comprising monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 18 carbon atoms, and wherein said polymer has a number average molecular weight of from about 300 to 10,000 and an average of at least about 30% of said polymer chains contain terminal ethenylidene unsaturation and wherein said additive is characterized by a VR value of less than about 4.1, and (b) at least one amine, said dispersant having a VR' value of less than about 4.1.
Claim 17
Dependent Claim
124 words
An oil soluble dispersant mixture useful as a fuel or lubricating oil additive comprising an adduct of: (a) an ethylene alpha-olefin polymer substituted with halide moieties, said polymer comprising monomer units derived from ethylene and at least one alpha-olefin of the formula H 2 C═CHT 1 wherein T 1 is an alkyl group of from 1 to 18 carbon atoms, and wherein said polymer has a number average molecular weight of from about 300 to 10,000 and an average of at least about 30% of said polymer chains contain terminal ethenylidene unsaturation and wherein said additive is characterized by a VR value of less than about 4.1, and (b) at least one amine, said dispersant having a VR' value of less than about 4.1.
Claim 18
Dependent Claim
25 words
The dispersant adduct according to claim 14 wherein the lubricating oil dispersant is characterized by a VR'/VR r value ratio of less than about 1.11.
Claim 19
Dependent Claim
26 words
The dispersant adduct according to claim 14 wherein the amine contains from 2 to 60 carbon atoms and from 1 to 12 nitrogen atoms per molecule.
Claim 20
Dependent Claim
35 words
The dispersant adduct according to claim 16 wherein said amine comprises a polyalkylenepolyamine wherein said alkylene group contains 2 to 60 carbons and said polyalkylenepolyamine contains from 2 to about 9 nitrogen atoms per molecule.
Claim 21
Dependent Claim
12 words
The dispersant adduct according to claim 17 wherein said amine comprises polyethylenepolyamine.
Claim 22
Dependent Claim
16 words
The dispersant adduct of any one of claims 14 to 18 wherein said alpha-olefin is propylene.
Claim 23
Dependent Claim
18 words
A lubricating oil concentrate containing from about 20 to 60 wt. % of the dispersant of claim 14.
Claim 24
Dependent Claim
18 words
A lubricating oil composition containing from about 0.1 to 20 wt. % of the dispersant of claim 14.
Claim 25
Dependent Claim
21 words
A lubricating oil concentrate containing from about 1 to 80 wt. % of the substituted ethylene alpha-olefin polymer of claim 1.
Claim 26
Dependent Claim
21 words
A lubricating oil composition containing from about 5 to 70 wt. % of the substituted ethylene alpha-olefin polymer of claim 1.
References Cited (Backward Citations)
FR1465913A
Cited
US3950426A
Cited
FR2154120A5
Cited
FR2186527A1
Cited
US4152499A
Cited
US4234435A
Cited
EP0128046B1
Cited
EP0129368B1
Cited
EP0132383A2
Cited
US4715975A
Cited
US4704491A
Cited
US4668834A
Cited
US4668834B1
Cited
JPS62129303A
Cited
EP0257696A1
Cited
WO1988001626A1
Cited
EP0305022A1
Cited
EP0353935A1
Cited
US5017299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-07-05 | 1997-01-04 | 1997-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-07-05 | 2001-01-04 | 2001-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-07-05 | 2005-01-04 | 2005-07-06 | $7700.00 | Window Closed / Lapsed |