US4022589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel additive package containing polybutene amine and lubricating oil
Assignee: Phillips Petroleum Co
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Filing: 1974-10-17
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Granted: 1977-05-10
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Expires: 1994-10-17
Abstract
Abstract A fuel additive system comprising 10 to 50 parts by weight of a polybutene amine detergent having an average molecular weight in the range of 600-3,000 and having a nitrogen content in the range of 0.5 to 3 weight percent and 100 to 500 parts by weight of a solvent-refined paraffinic lubricating oil having a viscosity in the range of 250 to 500 SUS at 100° F.
Inventors
- 👤 Henry E. Alquist
- 👤 George D. Ebersole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:00
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C10L1/143; C10L1/16; C10L1/1616; C10L1/1608; C10L1/18; C10L1/182; C10L1/1822; C10L1/1824
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
65 words
A fuel composition comprising a liquid hydrocarbon fuel having therein from 10 to 50 pounds per 1,000 barrels of said fuel of a polybutene amine having an average molecular weight in the range of 600 to 3,000 and from 100 to 500 pounds per 1,000 barrels of said fuel of a paraffinic hydrocarbon oil having a viscosity at 100° F between 250 and 500 SUS.
Claim 2
Dependent Claim
65 words
A fuel composition comprising a liquid hydrocarbon fuel having therein from 10 to 50 pounds per 1,000 barrels of said fuel of a polybutene amine having an average molecular weight in the range of 600 to 3,000 and from 100 to 500 pounds per 1,000 barrels of said fuel of a paraffinic hydrocarbon oil having a viscosity at 100° F between 250 and 500 SUS.
Claim 3
Dependent Claim
26 words
The composition of claim 1 additionally having therein from 0.1 to 5 pounds per 1,000 barrels of said fuel of an oxyalkylated alkylphenol-formaldehyde polymer as demulsifier.
Claim 4
Dependent Claim
28 words
The composition of claim 1 wherein said fuel in an unleaded motor fuel having a boiling point in the range of about 70° F to about 450° F.
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein said oil is a solvent-refined paraffinic neutral oil having a viscosity at 100° F in the range of about 300-325 SUS.
Claim 6
Dependent Claim
117 words
A detergent additive concentrate for let down in liquid hydrocarbon fuels consisting essentially of a volatile solvent having a boiling point in the range of about 150° to 400° F selected from the group consisting of aliphatic alcohols, saturated aliphatic hydrocarbons and aromatic hydrocarbons, said solvent having dissolved therein from 10 to 70 weight percent of a mixture of 10 to 50 parts by weight of a polybutene amine having an average molecular weight in the range of 600 to 3,000, from 100 to 500 parts by weight of a paraffinic hydrocarbon oil having a viscosity at 100° F between 250 and 500 SUS, and, optionally, from 0.1 to 5 parts by weight of a demulsifying agent.
Claim 7
Dependent Claim
117 words
A detergent additive concentrate for let down in liquid hydrocarbon fuels consisting essentially of a volatile solvent having a boiling point in the range of about 150° to 400° F selected from the group consisting of aliphatic alcohols, saturated aliphatic hydrocarbons and aromatic hydrocarbons, said solvent having dissolved therein from 10 to 70 weight percent of a mixture of 10 to 50 parts by weight of a polybutene amine having an average molecular weight in the range of 600 to 3,000, from 100 to 500 parts by weight of a paraffinic hydrocarbon oil having a viscosity at 100° F between 250 and 500 SUS, and, optionally, from 0.1 to 5 parts by weight of a demulsifying agent.
Claim 8
Dependent Claim
13 words
The composition of claim 5 wherein said agent is an oxyalkylated alkylphenol-formaldehyde polymer.
References Cited (Backward Citations)
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US3565804A
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US3574576A
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US3424565A
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US3573010A
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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) | 1980-05-09 | 1980-11-08 | 1981-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-09 | 1984-11-08 | 1985-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-09 | 1988-11-08 | 1989-05-10 | $7700.00 | Window Closed / Lapsed |