US4173456A
Expired / Lapsed
US
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Polyolefin/acylated poly(alkyleneamine) two component fuel additive
Assignee: Octel America Inc
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Filing: 1978-02-06
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Granted: 1979-11-06
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Expires: 1998-02-06
Abstract
Abstract Two component fuel additive compositions comprising a hydrocarbon-soluble, acylated, poly(alkyleneamine) and from 1 to 10 parts per part of said poly(alkyleneamine) of a normally liquid, hydrocarbon-soluble polymer of a C2 to C6 monoolefin or diolefin; also a concentrated hydrocarbon solution of said additive and a fuel composition containing an amount of said additive effective to provide carburetor detergency in spark-ignition engines.
Inventors
- 👤 Harold J. Scheule
- 👤 Roy E. Starn, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:06
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1641; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
91 words
A gasoline additive composition comprising (i) a hydrocarbon-soluble, acylated, poly(alkyleneamine) of the formula ##STR2## wherein R is selected from at least one of H and R'--C(O)--; R 1 is C 9 to C 23 hydrocarbyl; n is 2, 3, or a mixture of 2 and 3; and x is 2 to 6; and (ii) from about 1 to 10 parts per part of said poly(alkyleneamine) of a normally liquid, hydrocarbonsoluble polymer of a C 2 to C 6 olefin, said polymer having an average molecular weight of about 400 to 3000.
Claim 2
Dependent Claim
91 words
A gasoline additive composition comprising (i) a hydrocarbon-soluble, acylated, poly(alkyleneamine) of the formula ##STR2## wherein R is selected from at least one of H and R'--C(O)--; R 1 is C 9 to C 23 hydrocarbyl; n is 2, 3, or a mixture of 2 and 3; and x is 2 to 6; and (ii) from about 1 to 10 parts per part of said poly(alkyleneamine) of a normally liquid, hydrocarbonsoluble polymer of a C 2 to C 6 olefin, said polymer having an average molecular weight of about 400 to 3000.
Claim 3
Dependent Claim
14 words
A composition according to claim 1 wherein at least two R groups are R'--C(O)--.
Claim 4
Dependent Claim
19 words
A composition according to claim 2 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and tall oil fatty acid.
Claim 5
Dependent Claim
22 words
A composition according to claim 2 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and mixed, saturated branched- and straight-chain carboxylic acid.
Claim 6
Dependent Claim
29 words
A composition according to claim 2 wherein R' is a C 9 to C 21 hydrocarbyl, n is 2 or 3, x is 4 and the polymer is polypropylene.
Claim 7
Dependent Claim
38 words
A composition according to claim 5 wherein the polypropylene has an average molecular weight of about 500 to 1000 and is present in an amount of about 3 to 8 parts of said polymer per part of poly(alkyleneamine).
Claim 8
Dependent Claim
19 words
A composition according to claim 6 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and tall oil fatty acid.
Claim 9
Dependent Claim
22 words
A composition according to claim 6 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and mixed, saturated branched- and straight-chain carboxylic acid.
Claim 10
Dependent Claim
29 words
A composition according to claim 2 wherein R' is a C 9 to C 21 hydrocarbyl, n is 2 or 3, x is 4 and the polymer is polyisobutylene.
Claim 11
Dependent Claim
38 words
A composition according to claim 9 wherein the polyisobutylene has an average molecular weight of about 950 to 1400 and is present in an amount of about 3 to 8 parts of said polymer per part of poly(alkyleneamine).
Claim 12
Dependent Claim
19 words
A composition according to claim 10 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and tall oil fatty acid.
Claim 13
Dependent Claim
22 words
A composition according to claim 10 wherein the poly(alkyleneamine) is a triamide of tetraethylenepentamine and mixed, saturated branched- and straight-chain carboxylic acid.
Claim 14
Dependent Claim
28 words
A gasoline additive composition comprising from 30% to 75% by weight of the composition of claim 1 and from 25% to 70% by weight of a hydrocarbon solvent.
Claim 15
Dependent Claim
23 words
A fuel composition comprising gasoline and an effective amount of the additive composition of claim 1 to provide carburetor detergency in spark-ignition engines.
Claim 16
Dependent Claim
36 words
A composition according to claim 14 comprising an amount of about 0.0004 to 0.04 weight percent of poly(alkyleneamine) based on the gasoline, and from 0.0004 to 0.2 weight percent of the polymer based on the gasoline.
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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) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |