Patent US3807976A successfully refreshed from Google Patents.
US3807976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-functional gasoline additives and gasolines containing them
Assignee: EIDP Inc
•
Filing: 1971-11-17
•
Granted: 1974-04-30
•
Expires: 1991-11-17
Abstract
Abstract Hydrocarbon-soluble combinations of: (A) aliphatic C4 to C10 monoamine salts of branched chain primary C8 to C16 alkyl acid esters of orthophosphoric acid; (B) polybutenes having molecular weights in the range 400 to 3000 and viscosities in the range 500 to 900,000 SUS at 100*F. and 60 to 20,000 SUS at 210*F.; and, optionally, (C) hydrocarbon solvents. These mixtures are useful in gasolines for spark ignition engines to inhibit the formation of intake valve deposits and to clean the engine''s carburetor.
Inventors
- 👤 P Polss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:57
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/16; C10L1/1608; C10L1/1625; C10L1/1633; C10L1/1641; C10L1/26; C10L1/2633; C10L1/2658; F; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
56 words
from about 0.0005 to about 0.008 weight percent based on the gasoline of a gasoline-soluble salt of i. a C4 to C10 aliphatic monoamine wherein each aliphatic radical attached to the amine nitrogen is attached through a saturated carbon atom, and ii. a C8 to C16 branched chain primary alkyl acid ester of orthophosphoric acid, and
Claim 2
Dependent Claim
24 words
The composition of claim 1 which contains: C. a hydrocarbon solvent in a minor proportion sufficient to improve the handling characteristics of the composition.
Claim 3
Dependent Claim
33 words
The composition of claim 1 wherein the amine salt is a substantially neutral salt of a C4 to C8 alkyl primary amine and a C8 to C16 Oxo-alkyl acid ester of orthophosphoric acid.
Claim 4
Dependent Claim
65 words
from about 0.01 to about 0.3 percent by weight based on the gasoline of a normally liquid, gasoline-soluble polybutene having a number average molecular weight in the range 400 to 3000 and a viscosity in the range 500 to 900,000 SUS at 100*F. and in the range 60 to 20,000 SUS at 210*F., the polybutene/amine salt weight ratio being between about 1/1 to about 50/1.
Claim 5
Dependent Claim
21 words
The composition of claim 3 wherein the alkyl groups of said orthophosphoric acid ester have eight to 13 carbon atoms each.
Claim 6
Dependent Claim
51 words
The composition of claim 4 wherein the amine salt is the 2-ethylhexylamine salt of a mixture of about 40 to 60 mole percent of tridecyl dihydrogen orthophosphate and about 60 to 40 mole percent of ditridecyl monohydrogen orthophosphate and the polybutene/amine salt weight ratio is between about 1/1 and about 50/1.
Claim 7
Dependent Claim
50 words
The composition of claim 4 wherein the amine salt is the isobutylammonium salt of a mixture of about 40 to 60 mole percent of tridecyl dihydrogen orthophosphate and about 60 to 40 mole percent of ditridecyl monohydrogen orthophosphate and the polybutene/amine salt weight ratio is between about 1/1 and 50/1.
Claim 8
Dependent Claim
17 words
The composition of claim 3 wherein the polybutene/amine salt weight ratio is between about 5/1 and 30/1.
Claim 9
Dependent Claim
43 words
The composition of claim 5 wherein the polybutene is a polyisobutene having a molecular weight in the range 950 to 2700 and a viscosity in the range 40,000 to 890,000 SUS at 100*F. and in the range 1,000 and 19,500 SUS at 210*F.
Claim 10
Dependent Claim
43 words
The composition of claim 5 wherein the polybutene is a polyisobutene having a molecular weight in the range 1,200 to 1, 400 and a viscosity in the range 100,000 to 125,000 SUS at 100*F. and in the range 2,000 to 3,000 at 210*F.
Claim 11
Dependent Claim
54 words
A composition according to claim 2 wherein the amine salt amounts to from about 1.5 to 30 percent by weight of the composition, the polybutene amounts to From about 30 to 80 percent by weight of the composition, and the hydrocarbon solvent amounts to from 10 to 40 percent by weight of the composition.
Claim 12
Dependent Claim
55 words
A composition according to claim 10 wherein A. the amine salt amounts to from 3 to 15 percent by weight of the composition, B. the polybutene amounts to from 60 to 80 percent by weight of the composition, and C. the hydrocarbon solvent amounts to from 15 to 30 percent by weight of the composition.
Claim 13
Dependent Claim
59 words
A composition according to claim 11 wherein A. the amine salt amounts to from 5 to 6 percent by weight of the composition, B. the polybutene amounts to from 70 to 75 percent by weight of the composition, and C. the hydrocarbon solvent consists essentially of xylene amounting to from 18 to 24 percent by weight of the composition.
Claim 14
Dependent Claim
59 words
A composition according to claim 11 wherein A. the amine salt amounts to from 10 to 12 percent by weight of the composition, B. the polybutene amounts to from 65 to 70 percent by weight of the composition, and C. the hydrocarbon solvent consists essentially of xylene amounting to from 15 to 20 percent by weight of the composition.
Claim 15
Dependent Claim
4 words
A gasoline comprising an
Claim 16
Dependent Claim
16 words
The gasoline composition of claim 14 containing additionally an antiknock quantity of an organolead antiknock agent.
Claim 17
Dependent Claim
31 words
The gasoline composition of claim 15 wherein the amine salt amount is between about 0.002 and 0.005 percent, the polybutene between about 0.01 and 0.1 percent, by weight of the composition.
Claim 18
Dependent Claim
34 words
The gasoline composition of claim 16 wherein the amine salt is a substantially neutral salt of a C4 to C8 alkyl primary amine and a C8 to C16 Oxo-alkyl acid ester of orthophosphoric acid.
Claim 19
Dependent Claim
22 words
The gasoline composition of claim 17 wherein the alkyl groups of said orthophosphoric acid ester have 8 to 13 carbon atoms each.
Claim 20
Dependent Claim
50 words
The composition of claim 17 wherein the amine salt is the isobutylammonium salt of a mixture of about 40 to 60 mole percent of tridecyl dihydrogen orthophosphate and about 60 to 40 mole percent of ditridecyl monohydrogen orthophosphate and the polybutene/amine salt weight ratio is between about 1/1 and 50/1.
Claim 21
Dependent Claim
52 words
The gasoline composition of claim 17 wherein the amine salt is the 2-ethylhexylamine salt of a mixture of about 40 to 60 mole percent of tridecyl dihydrogen orthophosphate and about 60 to 40 mole percent of di-tridecyl mono-hydrogen orthophosphate, and the polybutene/amine salt weight ratio is between about 5/1 and about 30/1.
Claim 22
Dependent Claim
19 words
The gasoline composition of claim 20 wherein the polybutene/amine salt weight ratio is between about 5/1 and about 8/1.
Claim 23
Dependent Claim
19 words
The gasoline composition of claim 20 wherein the polybutene/amine salt weight ratio is between about 10/1 AND about 14/1.
Claim 24
Dependent Claim
46 words
The gasoline composition of claim 20 wherein the polybutene consists essentially of a polyisobutene having a molecular weight in the range 950 to 2700 and a viscosity in the range 40,000 to 890,000 SUS at 100*F. and in the range 1,000 and 19,500 SUS at 210*F.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-29 | 1977-10-29 | 1978-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-29 | 1981-10-29 | 1982-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-29 | 1985-10-29 | 1986-04-30 | $7700.00 | Window Closed / Lapsed |