US4046521A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distillate fuel containing dehazing compositions
Assignee: Baker Petrolite LLC
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Filing: 1975-03-31
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Granted: 1977-09-06
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Expires: 1995-03-31
Abstract
Abstract This invention relates to compositions which are the reaction products of phenol-formaldehyde resins, α-olefin epoxides derived from α-olefins of 4 or more carbons and alkylene oxides such as ethylene and propylene oxides; and to the use of these compositions as dehazers for petroleum distillates.
Inventors
- 👤 Donald U. Bessler
- 👤 Kenneth J. Tacchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:15
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/36; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1817
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
86 words
A fuel composition comprising a distillate fuel and a dehazing amount of the product of the process which comprises reacting a phenol-formaldehyde resin with an α-olefin epoxide having at least four carbon atoms and then reacting the product so obtained with a member of the group consisting of ethylene oxide, glycidol, propylene oxide and mixtures thereof, the reaction of said phenol-formaldehyde resin with said α-olefin epoxide and the reaction of the product so obtained with said member being carried out by heating the respective reaction mixtures.
Claim 2
Dependent Claim
86 words
A fuel composition comprising a distillate fuel and a dehazing amount of the product of the process which comprises reacting a phenol-formaldehyde resin with an α-olefin epoxide having at least four carbon atoms and then reacting the product so obtained with a member of the group consisting of ethylene oxide, glycidol, propylene oxide and mixtures thereof, the reaction of said phenol-formaldehyde resin with said α-olefin epoxide and the reaction of the product so obtained with said member being carried out by heating the respective reaction mixtures.
Claim 3
Dependent Claim
61 words
The fuel composition of claim 1 wherein said phenol-formaldehyde resin contains 2 to 30 recurring units of the formula ##STR6## where R is an alkyl group of from 1 to 18 carbon atoms and about 0.1 to 10 moles of said α-olefin epoxide and about 1.5 to 50 moles of said member are used for each said recurring unit phenol-formaldehyde resin.
Claim 4
Dependent Claim
45 words
The fuel composition of claim 2 wherein said phenol-formaldehyde resin contains 4 to 15 recurring units of said formula and about 0.5 to 2 moles of said α-olefin epoxide and about 0.5 to 5 moles of said member are used for each said recurring unit.
Claim 5
Dependent Claim
26 words
The fuel composition of claim 2 wherein the reaction of said phenol-formaldehyde resin with said α-olefin epoxide is carried out in the presence of potassium hydroxide.
Claim 6
Dependent Claim
28 words
The fuel composition of claim 2 wherein said α-olefin epoxide is represented by the formula: ##STR7## where R' is an alkyl group of a least four carbon atoms.
Claim 7
Dependent Claim
16 words
The fuel composition of claim 5 wherein said alkyl group contains 8 to 18 carbon atoms.
Claim 8
Dependent Claim
14 words
The fuel composition of claim 2 wherein said phenol-formaldehyde resin is butyl phenol-formaldehyde resin.
Claim 9
Dependent Claim
12 words
The fuel composition of claim 2 wherein said member is ethylene oxide.
Claim 10
Dependent Claim
12 words
The fuel composition of claim 5 wherein said member is ethylene oxide.
Claim 11
Dependent Claim
12 words
The fuel composition of claim 6 wherein said member is ethylene oxide.
Claim 12
Dependent Claim
60 words
The fuel composition of claim 3 wherein said phenol-formaldehyde resin is butyl phenol-formaldehyde resin, said α-olefin epoxide is represented by the formula: ##STR8## where R' is an alkyl group containing 8 to 18 carbon atoms, the reaction of said phenol-formaldehyde resin with said α-olefin epoxide is carried out in the presence of potassium hydroxide and said member is ethylene oxide.
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |