US4747851A
Expired / Lapsed
US
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Novel polyoxyalkylene diamine compound and ori-inhibited motor fuel composition
Assignee: Texaco Inc
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Filing: 1987-01-02
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Granted: 1988-05-31
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Expires: 2007-01-02
Abstract
Abstract A novel gasoline-soluble polyoxyalkylene diamine compound, a concentrate comprising the compound dissolved in a hydrocarbon solvent, and a haze-free, deposit-resistant and ORI-inhibited motor fuel composition comprising the compound is described. Motor fuel compositions comprising the novel polyoxyalkylene diamine compound of the instant invention are haze-free and show improved ORI control and carbonaceous deposit inhibition in comparison with conventional motor fuels. Motor fuel compositions of the instant invention may optionally comprise a polyolefin polymer/copolymer component having a molecular weight range of about 500-3500.
Inventors
- 👤 Rodney L. Sung
- 👤 Milton D. Behrens
- 👤 Michael A. Caggiano
- 👤 John F. Knifton
- 👤 John M. Larkin
- 👤 Robert L. Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2603; C08G65/2606; C08G65/2609; C08G65/32; C08G65/321; C08G65/325; C08G65/3255; C08L; C08L71/00; C08L71/02; C10L1/143; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1658
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
31 words
A polyoxyalkylene diamine compound of the formula: ##STR6## where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 2
Dependent Claim
31 words
A polyoxyalkylene diamine compound of the formula: ##STR6## where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 3
Dependent Claim
31 words
A compound as set forth in claim 1, wherein c has a value from about 8-50, b+d has a value from about 8-50, and a+e has a value from about 4-8.
Claim 4
Dependent Claim
44 words
A concentrate composition comprising 1.0-75.0 weight percent of a polyoxyalkylene diamine of the formula: ##STR7## in admixture with a hydrocarbon solvent, where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 5
Dependent Claim
44 words
A concentrate composition comprising 1.0-75.0 weight percent of a polyoxyalkylene diamine of the formula: ##STR7## in admixture with a hydrocarbon solvent, where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 6
Dependent Claim
30 words
A concentrate composition according to claim 3, wherein c has a value from about 8-50, b+d has a value from about 8-50, and a+e has a value from about 4-8.
Claim 7
Dependent Claim
23 words
A concentrate composition according to claims 3 or 4, where said polyoxyalkylene diamine is present in a concentration range of 5.0-35.0 weight percent.
Claim 8
Dependent Claim
54 words
A motor fuel composition comprising a mixture of hydrocarbons boiling in the range from about 90° F.-450° F. and from 0.0005-5.0 weight percent of a polyoxyalkylene diamine of the formula: ##STR8## where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 9
Dependent Claim
54 words
A motor fuel composition comprising a mixture of hydrocarbons boiling in the range from about 90° F.-450° F. and from 0.0005-5.0 weight percent of a polyoxyalkylene diamine of the formula: ##STR8## where c has a value from about 5-150, b+d has a value from about 5-150, and a+e has a value from about 2-12.
Claim 10
Dependent Claim
31 words
A motor fuel composition according to claim 6, wherein c has a value from about 8-50, b+d has a value from about 8-50, and a+e has a value from about 4-8.
Claim 11
Dependent Claim
19 words
A motor fuel composition according to claim 6, comprising from about 0.001-1.0 weight percent of said polyoxyalkylene diamine additive.
Claim 12
Dependent Claim
19 words
A motor fuel composition according to claim 7, comprising from about 0.001-1.0 weight percent of said polyoxyalkylene diamine additive.
Claim 13
Dependent Claim
19 words
A motor fuel composition according to claim 6, comprising from about 0.01-0.1 weight percent of said polyoxyalkylene diamine additive.
Claim 14
Dependent Claim
19 words
A motor fuel composition according to claim 7, comprising from about 0.01-0.1 weight percent of said polyoxyalkylene diamine additive.
Claim 15
Dependent Claim
54 words
A motor fuel composition according to claim 6, which additionally comprises from about 0.001-1.0 weight percent of a polyolefin polymer, copolymer, or the corresponding hydrogenated polymer or copolymer, or mixtures thereof, of a C 2 -C 6 unsaturated hydrocarbon, said polyolefin polymer or copolymer having a molecular weight in the range from about 500-3500.
Claim 16
Dependent Claim
38 words
A motor fuel composition according to claim 12, in which said polyolefin polymer or copolymer component is derived from an unsaturated hydrocarbon selected from the group consisting of ethylene, propylene, isopropylene, butylene, isobutylene, amylene, hexylene, isoprene, and butadiene.
Claim 17
Dependent Claim
31 words
A motor fuel composition according to claim 13, in which said polyolefin polymer, copolymer, or corresponding hydrogenated polymer or copolymer component has a molecular weight in the range of about 650-2600.
Claim 18
Dependent Claim
27 words
A motor fuel composition according to claim 14, in which said polyolefin polymer component is a polypropylene having a molecular weight in the range of about 750-1000.
Claim 19
Dependent Claim
24 words
A motor fuel composition according to claim 15, where said polyolefin polymer component is a polypropylene with an average molecular weight of about 800.
Claim 20
Dependent Claim
27 words
A motor fuel composition according to claim 14, in which said polyolefin polymer component is a polyisobutylene having a molecular weight in the range of about 1000-1500.
Claim 21
Dependent Claim
25 words
A motor fuel composition according to claim 17, in which said polyolefin polymer component is a polyisobutylene having an average molecular weight of about 1300.
Claim 22
Dependent Claim
29 words
A motor fuel composition according to any of claims 12-18, comprising from about 0.01-0.5 weight percent of said polymer, copolymer, or corresponding hydrogenated polymer or copolymer, or mixtures thereof.
Claim 23
Dependent Claim
73 words
A motor fuel composition comprising a mixture of hydrocarbons boiling in the range from about 90° F.-450° F., and additionally comprising: (a) from 0.001-1.0 weight percent of a polyoxyalkylene diamine of the formula ##STR9## where c has a value from about 8-50, b+d has a value from about 8-50, and a+e has a value from about 4-8; and (b) from about 0.01-0.5 weight percent of polyisobutylene of a molecular weight of about 1300.
Claim 24
Dependent Claim
73 words
A motor fuel composition comprising a mixture of hydrocarbons boiling in the range from about 90° F.-450° F., and additionally comprising: (a) from 0.001-1.0 weight percent of a polyoxyalkylene diamine of the formula ##STR9## where c has a value from about 8-50, b+d has a value from about 8-50, and a+e has a value from about 4-8; and (b) from about 0.01-0.5 weight percent of polyisobutylene of a molecular weight of about 1300.
References Cited (Backward Citations)
US3535307A
Cited
US3502451A
Cited
US3654370A
Cited
US3806456A
Cited
US4191537A
Cited
US4181682A
Cited
US4316991A
Cited
US4357148A
Cited
US4604103A
Cited
US4444566A
Cited
US4659337A
Cited
US4659336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-05-31 | 1991-11-30 | 1992-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-31 | 1995-11-30 | 1996-05-31 | $3760.00 | Window Closed / Lapsed |
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