US3660128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax-in-water emulsions
Assignee: Atlantic Richfield Co
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Filing: 1967-11-29
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Granted: 1972-05-02
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Expires: 1987-11-29
Abstract
Abstract This invention relates to the composition of an emulsion and a method of producing a stable, wax semi-solid by aeration of the emulsion. The emulsion contains wax, water, a primary mono or secondary dialkanolamine, and an aliphatic monocarboxylic acid in the proportions of about 25 to 75 weight percent water, about 20 to 65 weight percent of a normally solid hydrocarbon wax, about 1 to 15 weight percent of the alkanolamine, and about 3.5 to 15 weight percent of the acid. The aeration can be accomplished with a relatively inert gas.
Inventors
- 👤 David B Sheldahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/16; C08K5/17; C08K5/19
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
86 words
A wax semi-solid of claim 1 wherein the solid phase mixture comprises about 40 to 60 weight percent water, about 5 to 10 weight percent of the aliphatic hydrocarbon monocarboxylic acid, about 3 to 7 weight percent of the alkanolamine and in an amount at least in stoichiometric proportions to the acid, said alkanolamine having two to four carbon atoms, in the alkanol group, and about 30 to 50 weight percent of a hydrocarbon wax having a melting point of about 120* F. to 1602 F.
Claim 2
Dependent Claim
10 words
The composition of claim 2 wherein said gas is air.
Claim 3
Dependent Claim
15 words
The composition of claim 2 wherein said alkanolamine is in stoichiometric excess of said acid.
Claim 4
Dependent Claim
22 words
The composition of claim 2 wherein said monocarboxylic acid is stearic acid or oleic acid and the alkanolamine is monoethanolamine or diethanolamine.
Claim 5
Dependent Claim
10 words
The composition of claim 5 wherein said gas is air.
Claim 6
Dependent Claim
12 words
The composition of claim 5 wherein said wax is paraffin petroleum wax.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |