US3607773A
Expired / Lapsed
US
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Emulsifying water and airblown asphalt with tall oil and triethandlamine
Assignee: Phillips Petroleum Co
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Filing: 1968-09-26
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Granted: 1971-09-21
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Expires: 1988-09-26
Abstract
Abstract Airblown asphalt and water are hard to emulsify with either tall oil or triethanolamine as the emulsifying agent. The use of both tall oil and triethanolamine gives a synergistic effect, and weight percents based on the total weight of the emulsion of 0.9 tall oil and 0.7 triethanolamine produced stable emulsions while 1.6 of either one alone failed to produce an emulsion. Alkali metal hydroxide to adjust the pH above 7 and known emulsion stabilizing agents may be added.
Inventors
- 👤 Armin C Pitchford
- 👤 Gene N Woodruff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:36
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
34 words
The process of claim 1 wherein there is added to said aqueous solution an alkali metal hydroxide or ammonium hydroxide in an amount such that the pH of said emulsion is above 7 .
Claim 2
Dependent Claim
53 words
The process of claim 2 wherein there is added to said aqueous solution a stabilizing agent selected from the group comprising Indulin C, as defined in the specification, and soya bean flour, wherein said agent is present in an amount up to 10 percent by weight of the total weight of said emulsion.
Claim 3
Dependent Claim
8 words
The product of the process of claim 1.
Claim 4
Dependent Claim
75 words
An aqueous emulsion consisting essentially of airblown asphalt, water, tall oil and triethanolamine wherein the total weight of said emulsion is comprised of 40 to 70 weight percent of said airblown asphalt, 60 to 30 weight percent of said water, at least 0.9 weight percent of said tall oil, and at least 0.7 weight percent of said triethanolamine; and further wherein said water is selected from tap water, river water, well water or rain water.
Claim 5
Dependent Claim
28 words
The emulsion of claim 5 containing in addition sufficient alkali metal hydroxide or ammonium hydroxide in an amount such that the pH of said emulsion is above 7.
Claim 6
Dependent Claim
50 words
The emulsion of claim 6 containing in addition a stabilizing agent selected from the group comprising a sodium half salt of crude pine wood lignin, and soya bean flour, wherein said agent is present in an amount up to 10 percent by weight of the total weight of said emulsion.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |