Patent US1729937A successfully refreshed from Google Patents.
Patent US3785789A successfully refreshed from Google Patents.
US3785789A
Expired / Lapsed
US
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Fuel detergents
Assignee: Chevron USA Inc
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Filing: 1972-05-24
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Granted: 1974-01-15
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Expires: 1992-05-24
Abstract
Abstract The reaction products of hydrocarbon polyamines having a long, substantially aliphatic, hydrocarbon chain bonded to a di- or higher polyamine with certain polyfunctional coupling agents find use as detergents in distillate fuel compositions. The hydrocarbon group is normally branched chain and derived from natural sources or polyolefins, substantially free of aromatic substitution and of about 420 to 10,000 molecular weight. The poly-functional coupling agents are certain polyhalides, polycarboxylic acids, and organic polyisocyanates.
Inventors
- 👤 L Honnen
- 👤 M Coon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:23
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3225; C08G18/3228; C08G18/40; C08G18/62; C08G18/6204; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
15 words
A composition according to claim 1, wherein the hydrocarbyl polyamine is of the general formula:
Claim 2
Dependent Claim
32 words
A composition according to claim 2, wherein the hydrocarbyl polyamine is a polyisobutenyl ethylene diamine having from one to two polyisobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 3
Dependent Claim
31 words
A composition according to claim 2, wherein the hydrocarbyl polyamIne is a polyisobutenyl diethylenetriamine having from one to two polyisobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 4
Dependent Claim
32 words
A composition according to claim 2, wherein the hydrocarbyl polyamine is a polyisobutenyl triethylenetetramine having from one to three polyisobutenyl groups of from about 560 to about 2, 000 average molecular weight.
Claim 5
Dependent Claim
31 words
A composition according to claim 2, wherein the hydrocarbyl polyamine is a polyisobutenyl tetraethylenepentamine having from 1 to 3 isobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 6
Dependent Claim
102 words
A fuel composition having a major amount of a hydrocarbonaceous liquid fuel and in an amount to provide detergency, the reaction product of a hydrocarbyl amine wherein the hydrocarbyl is of from 40 to 300 carbon atoms and is an aliphatic or alicyclic branched chain hydrocarbyl radical derived from petroleum hydrocarbons or polyolefins of monomers from two to six carbon atoms, with the proviso that when the monomer is ethylene, it is copolymerized with a higher homolog; and a coupling agent selected from the group consisting of C2-C20 polycarboxylic acids, C8-C20 polyisocyanates having a molecular weight below 400 and C2-C20 hydrocarbyl dihalides.
Claim 7
Dependent Claim
84 words
A composition according to claim 7, wherein the hydrocarbyl polyamine is of the general formula: (-N(-CH2CH2N-)a )R1c H3 a c wherein: a1 is in the range of 1 to 5; c1 is in the range of 1 to 4 and equal to or less than the number of nitrogen atoms; and R1 is a branched chain aliphatic hydrocarbyl group derived from olefins of from three to four carbon atoms and of an average molecular weight in the range from about 560 to about 2,000.
Claim 8
Dependent Claim
32 words
A composition according to claim 8, wherein the hydrocarbyl polyamine is a polyisobutenyl ethylene diamine having from one to two polyisobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 9
Dependent Claim
31 words
A composition according to claim 8, wherein the hydrocarbyl polyamine is a polyisobutenyl diethylenetriamine having from one to two polyisobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 10
Dependent Claim
38 words
A composition according to claim 8, wherein the hydrocarbyl polamine is a polyisobutenyl triethylenetetramine having from one to three polyisobutenyl triethylenetetramine having from one to three polyisobutenyl groups of from about 560 to about 2,000 average molecular weight.
Claim 11
Dependent Claim
32 words
A composition according to claim 8, wherein the hydrocarbyl polyamine is a polyisobutenyl tetraethylenepentamine having from one to three polyisobutenyl groups of from about 560 to about 2, 000 average molecular weight.
Claim 12
Dependent Claim
12 words
A composition according to claim 7, wherein the coupling agent is dichlorobutene.
Claim 13
Dependent Claim
13 words
A composition according to claim 7, wherein the coupling agent is terephthaloyl chloride.
Claim 14
Dependent Claim
12 words
A composition according to claim 7, wherein the coupling agent is p-bis(chloromethyl)benzene.
Claim 15
Dependent Claim
13 words
A composition according to claim 7, wherein the coupling agent is toluene diisocyanate.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |