Patent US4161012A successfully refreshed from Google Patents.
Patent US3901665A successfully refreshed from Google Patents.
US3901665A
Expired / Lapsed
US
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Multi-functional fuel additive compositions
Assignee: EIDP Inc
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Filing: 1972-10-06
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Granted: 1975-08-26
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Expires: 1992-10-06
Abstract
Abstract Combinations of (A) polymers of C3-C4 olefins having a molecular weight in the range of about 400 to about 1400; and (B) polyoxyalkylene compounds of the formula wherein R is an alkyl group of 1 to 20 carbon atoms and wherein x has an average value of 4 to 20; are effective as anti-icing additives, as carburetor detergents and in some instances as intake valve deposit modifiers.
Inventors
- 👤 Perry Polss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:35
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10L1/146; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1641; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
73 words
MULTI-FUNCTIONAL FUEL ADDITIVE COMPOSITION SUITABLE FOR USE IN HYDROCARBON FUELS TO IMPART ANTI-ICING AND CARBURETOR DETERGENCY CONSISTING ESSENTIALLY OF A. POLYISOBUTYLENE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 400 TO ABOUT 900, AND B. FROM ABOUT 10 TO 160 PERCENT BY WEIGHT OF SAID POLYISOBUTYLENE OF A POLYOXYALKYLENE COMPOUND OF THE FORMULA R-(O-CH2-CH(-CH3))X-OH WHEREIN R IS ALKYL OF 10 TO 18 CARBON ATOMS, AND X HAS AN AVERAGE VALUE OF 4 TO 20.
Claim 2
Dependent Claim
73 words
MULTI-FUNCTIONAL FUEL ADDITIVE COMPOSITION SUITABLE FOR USE IN HYDROCARBON FUELS TO IMPART ANTI-ICING AND CARBURETOR DETERGENCY CONSISTING ESSENTIALLY OF A. POLYISOBUTYLENE HAVING A MOLECULAR WEIGHT OF FROM ABOUT 400 TO ABOUT 900, AND B. FROM ABOUT 10 TO 160 PERCENT BY WEIGHT OF SAID POLYISOBUTYLENE OF A POLYOXYALKYLENE COMPOUND OF THE FORMULA R-(O-CH2-CH(-CH3))X-OH WHEREIN R IS ALKYL OF 10 TO 18 CARBON ATOMS, AND X HAS AN AVERAGE VALUE OF 4 TO 20.
Claim 3
Dependent Claim
14 words
A composition of claim 1 wherein the polyoxyalkylene compound is one of the formula
Claim 4
Dependent Claim
31 words
A composition of claim 1 wherein the value of x in the polyoxyalkylene compound is about 7, and R is a mixture of alkyl group of 12 to 16 carbon atoms.
Claim 5
Dependent Claim
78 words
A liquid hydrocarbon fuel composition characterized by improved anti-icing and carburetor detergency comprising A. a major portion of a liquid hydrocarbon fuel comprising hydrocarbons boiling in the gasoline range, and based on the weight of said fuel B. about from 0.01 to about 0.06 percent by weight of polyisobutylene having a molecular weight of from about 400 to about 900 and C. from about 0.008 to about 0.016 percent by weight of a polyoxyalkylene compound of the formula
Claim 6
Dependent Claim
78 words
A liquid hydrocarbon fuel composition characterized by improved anti-icing and carburetor detergency comprising A. a major portion of a liquid hydrocarbon fuel comprising hydrocarbons boiling in the gasoline range, and based on the weight of said fuel B. about from 0.01 to about 0.06 percent by weight of polyisobutylene having a molecular weight of from about 400 to about 900 and C. from about 0.008 to about 0.016 percent by weight of a polyoxyalkylene compound of the formula
References Cited (Backward Citations)
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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) | 1978-08-25 | 1979-02-24 | 1979-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-25 | 1983-02-24 | 1983-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-25 | 1987-02-24 | 1987-08-26 | $7700.00 | Window Closed / Lapsed |