US3717446A
Expired / Lapsed
US
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Gasoline anti-icing additives (a)
Assignee: Union Oil Company of California
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Filing: 1970-12-31
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Granted: 1973-02-20
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Expires: 1990-12-31
Abstract
Abstract A combination of two known types of surfactant gasoline additives with a non-surfactant lubricating oil additive is found to provide, in addition to good overall carburetor detergency, a synergistic anti-icing effect, as compared to any one or two of the additives alone. One of the surfactant additives is a succinimide condensation product of an alkylene polyamine with an alkenyl succinic anhydride, while the other is a long-chain primary alkyl- or alkenyl amine.
Inventors
- 👤 W Howland
- 👤 W Mallett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L1/16; C10L1/1616; C10L1/22; C10L1/222; C10L1/2222; C10L1/234; C10L1/238; C10L1/2383
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
24 words
an aliphatic amine of the formula RNH2, wherein R is an alkyl or alkenyl radical having from 12 to about 50 carbon atoms; and
Claim 2
Dependent Claim
24 words
an aliphatic amine of the formula RNH2, wherein R is an alkyl or alkenyl radical having from 12 to about 50 carbon atoms; and
Claim 3
Dependent Claim
33 words
between about 2.5 and 20 pounds per thousand barrels of an aliphatic amine of the formula RNH2, wherein R is an alkyl or alkenyl radical having from 12 to about 50 carbon atoms;
Claim 4
Dependent Claim
33 words
between about 2.5 and 20 pounds per thousand barrels of an aliphatic amine of the formula RNH2, wherein R is an alkyl or alkenyl radical having from 12 to about 50 carbon atoms;
Claim 5
Dependent Claim
19 words
An anti-icing gasoline composition comprising a base gasoline boiling substantially in the range of about 100*-400*F., and dissolved therein:
Claim 6
Dependent Claim
19 words
An anti-icing gasoline composition comprising a base gasoline boiling substantially in the range of about 100*-400*F., and dissolved therein:
Claim 7
Dependent Claim
23 words
A composition as defined in claim 1 wherein the weight ratio of component (1) to component (2) is between about 20/80 and 60/40.
Claim 8
Dependent Claim
77 words
between about 6 and 30 pounds per thousand barrels of a succinimide condensation product of one mole of an alkenyl succinic anhydride of the formula: with about 0.6 to 1.5 moles of an alkylene polyamine of the formula: H2N(R1NH)xH, wherein R is an alkenyl group having from eight to about 50 carbon atoms, R1 is a lower alkylene radical of about two to eight carbon atoms, and x is a number from 1 to about 10; and
Claim 9
Dependent Claim
77 words
between about 6 and 30 pounds per thousand barrels of a succinimide condensation product of one mole of an alkenyl succinic anhydride of the formula: with about 0.6 to 1.5 moles of an alkylene polyamine of the formula: H2N(R1NH)xH, wherein R is an alkenyl group having from eight to about 50 carbon atoms, R1 is a lower alkylene radical of about two to eight carbon atoms, and x is a number from 1 to about 10; and
Claim 10
Dependent Claim
81 words
a succinimide condensation product of one mole of an alkenyl succinic anhydride of the formula: with about 0.6 to 1.5 moles of an alkylene polyamine of the formula: H2N(R1NH)xH, wherein R is an alkenyl group having from eight to about 50 carbon atoms, R1 is a lower alkylene radical of about two to eight carbon atoms, and x is a number from 1 to about 10; the weight ratio of component (1) to component (2) being between about 20/80 and 60/40.
Claim 11
Dependent Claim
81 words
a succinimide condensation product of one mole of an alkenyl succinic anhydride of the formula: with about 0.6 to 1.5 moles of an alkylene polyamine of the formula: H2N(R1NH)xH, wherein R is an alkenyl group having from eight to about 50 carbon atoms, R1 is a lower alkylene radical of about two to eight carbon atoms, and x is a number from 1 to about 10; the weight ratio of component (1) to component (2) being between about 20/80 and 60/40.
Claim 12
Dependent Claim
14 words
A composition as defined in claim 1 wherein said alkylene polyamine is diethylene triamine.
Claim 13
Dependent Claim
37 words
between about 50 and 350 pounds per thousand barrels of a paraffinic lubricating oil; and wherein the combined proportion of components (1) and (2) in the gasoline is between about 11 and 40 pounds per thousand barrels.
Claim 14
Dependent Claim
37 words
between about 50 and 350 pounds per thousand barrels of a paraffinic lubricating oil; and wherein the combined proportion of components (1) and (2) in the gasoline is between about 11 and 40 pounds per thousand barrels.
Claim 15
Dependent Claim
13 words
A composition as defined in claim 1 wherein said aliphatic amine is oleylamine.
Claim 16
Dependent Claim
30 words
A composition as defined in claim 1 wherein the combined proportion of said components (1) and (2) in the gasoline is between about 11.5 and 20 pounds per thousand barrels.
Claim 17
Dependent Claim
22 words
A composition as defined in claim 1 wherein said base gasoline has a 50 percent boiling point between about 180* and 220*F.
Claim 18
Dependent Claim
71 words
A composition as defined in claim 1 wherein the weight-ratio of component (1) to component (2) is between about 20/80 and 60/40; said alkylene polyamine is diethylene triamine; said aliphatic amine is oleylamine; the combined proportion of said components (1) and (2) in the gasoline is between about 11.5 and 20 pounds per thousand barrels; and wherein said base gasoline has a 50 percent boiling point between about 180* and 220*F.
Claim 19
Dependent Claim
14 words
A synergistic anti-icing additive for gasoline comprising a paraffinic lubricating oil, and dissolved therein:
Claim 20
Dependent Claim
14 words
A synergistic anti-icing additive for gasoline comprising a paraffinic lubricating oil, and dissolved therein:
Claim 21
Dependent Claim
20 words
An additive as defined in claim 8 wherein said aliphatic amine is oleylamine and said alkylene polyamine is diethylene triamine.
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |