Patent US4328004A successfully refreshed from Google Patents.
US4328004A
Expired / Lapsed
US
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Stabilization of ethanol-gasoline mixtures
Assignee: United Guardian Inc
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Filing: 1980-08-13
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Granted: 1982-05-04
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Expires: 2000-08-13
Abstract
Abstract A stabilized composition of matter comprising a fuel oil, such as gasoline, ethanol, small amounts of water and a stabilizing amount of an additive which is substantially insoluble in water, but which is soluble in ethyl alcohol and gasoline and is effective to prevent the separation of the gasoline-ethyl alcohol solution into two distinct phases; said additive being n-hexylalcohol, hereinafter, n-hexanol. The invention also includes a method for stabilizing gasoline, that is, for preventing or retarding the phase separation of gasoline-ethanol mixtures in the presence of small amounts of water, and this being the case when the temperature of the gasoline-ethanol mixture has been reduced to below 20° F.
Inventors
- 👤 Alfred R. Globus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:42
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/32; C10L1/02; C10L1/023
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
76 words
A stabilized composition of matter comprising gasoline, 10-20% of ethanol containing up to 6% of water and 1-20% of a stabilizer n-hexanol in admixture with at least one member from the group consisting of 3,5-dimethyl-1-hexyn-3-ol, diglycolamine, n-butylamine, and n-butylamine plus 2-pentanone, wherein said group member 3,5-dimethyl-1-hexyn-3-ol can be present in an amount of 3-7% referred to the n-hexanol and said amine group member can be present in a total amount of 3-7% referred to the n-hexanol.
Claim 2
Dependent Claim
76 words
A stabilized composition of matter comprising gasoline, 10-20% of ethanol containing up to 6% of water and 1-20% of a stabilizer n-hexanol in admixture with at least one member from the group consisting of 3,5-dimethyl-1-hexyn-3-ol, diglycolamine, n-butylamine, and n-butylamine plus 2-pentanone, wherein said group member 3,5-dimethyl-1-hexyn-3-ol can be present in an amount of 3-7% referred to the n-hexanol and said amine group member can be present in a total amount of 3-7% referred to the n-hexanol.
Claim 3
Dependent Claim
14 words
A stabilized composition of matter according to claim 1 wherein said n-hexanol contains 3,5-dimethyl-1-hexyn-3-ol.
Claim 4
Dependent Claim
16 words
A stabilized composition of matter according to claim 1 wherein said n-hexanol contains n-butylamine plus 2-pentanone.
Claim 5
Dependent Claim
14 words
A stabilized composition of matter according to claim 1 wherein said hexanol contains diglycolamine.
Claim 6
Dependent Claim
14 words
A stabilized composition of matter according to claim 1 wherein said n-hexanol contains n-butylamine.
Claim 7
Dependent Claim
66 words
A stabilizer composition for gasoline-ethanol containing up to 6% water comprising n-hexanol in admixture with at least one member from the group consisting of 3,5-dimethyl-1-hexyn-3-ol, diglycolamine, n-butylamine and n-butylamine plus 2-pentanone, wherein said group member 3,5-dimethyl-1-hexyn-3-ol can be present in an amount of 3-7% referred to the n-hexanol and said amine group member can be present in a total amount of 3-7% referred to the n-hexanol.
Claim 8
Dependent Claim
66 words
A stabilizer composition for gasoline-ethanol containing up to 6% water comprising n-hexanol in admixture with at least one member from the group consisting of 3,5-dimethyl-1-hexyn-3-ol, diglycolamine, n-butylamine and n-butylamine plus 2-pentanone, wherein said group member 3,5-dimethyl-1-hexyn-3-ol can be present in an amount of 3-7% referred to the n-hexanol and said amine group member can be present in a total amount of 3-7% referred to the n-hexanol.
Claim 9
Dependent Claim
40 words
Method of stabilizing gasoline-ethanol containing up to 6% water mixtures which comprises incorporating into such mixture 1-20% of a stabilizer according to claim 16 wherein said ethanol is present in an amount of 10-20% of said mixture to be stabilized.
Claim 10
Dependent Claim
23 words
A stabilizer composition for gasoline-ethanol containing up to 6% water mixtures according to claim 6 comprising: 7%: 3,5-dimethyl-1-hexyn-3-ol 90%: n-hexanol 3%: diglycol amine.
Claim 11
Dependent Claim
22 words
A stabilizer composition for gasoline-ethanol containing up to 6% water mixtures according to claim 6 comprising 90%: n-hexanol 8%: n-butylamine 2%: n-pentanone
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) | 1985-05-03 | 1985-11-02 | 1986-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-03 | 1989-11-02 | 1990-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-03 | 1993-11-02 | 1994-05-04 | $7700.00 | Window Closed / Lapsed |