US4211575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphalt-sulfur emulsion composition
Assignee: Individual
•
Filing: 1979-01-08
•
Granted: 1980-07-08
•
Expires: 1999-01-08
Abstract
Abstract In a stockpile asphalt emulsion composition an improved asphalt phase comprises 40-70% of paving grade asphalt, 10-50% sulfur, and 5-30% liquid hydrocarbon.
Inventors
- 👤 Michael V. Burris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:38
CPC Classifications
C; C08; C08L; C08L95/00; C08L95/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
95 words
An asphalt-emulsion composition comprising: an asphalt phase consisting essentially of between about 40 and about 70% paving grade asphalt, between about 10 and about 50% sulfur, and between about 5 and about 30% of a liquid petroleum hydrocarbon having a boiling point above about 350° F., and a water phase having between about 0.2 and about 4.0 % by weight based on the total composition of an emulsion selected from the group consisting of a cationic and anionic emulsifiers and mixtures thereof,and whereinsaid asphalt phase is over 50% , by weight, of the total composition.
Claim 2
Dependent Claim
95 words
An asphalt-emulsion composition comprising: an asphalt phase consisting essentially of between about 40 and about 70% paving grade asphalt, between about 10 and about 50% sulfur, and between about 5 and about 30% of a liquid petroleum hydrocarbon having a boiling point above about 350° F., and a water phase having between about 0.2 and about 4.0 % by weight based on the total composition of an emulsion selected from the group consisting of a cationic and anionic emulsifiers and mixtures thereof,and whereinsaid asphalt phase is over 50% , by weight, of the total composition.
Claim 3
Dependent Claim
24 words
The composition of claim 1 wherein said liquid petroleum hydrocarbon is selected from the group consisting of gas oil, fuel oil, and fluxing oil.
Claim 4
Dependent Claim
20 words
The composition of claim 2 wherein said fluxing oil comprises an aromatic hydrocarbon having at least 55% aromatics, by weight.
Claim 5
Dependent Claim
77 words
In a process for preparing an asphalt emulsion composition, an improvement for preparing an asphalt phase comprising heating a paving grade asphalt to a temperature between about 200° and about 300° F., separately heating sulfur to above its melting point and below about 300° F., mixing the heated asphalt and molten sulfur at a temperature above the sulfur melting point and below about 300° F., and blending a liquid petroleum hydrocarbon with the asphalt and sulfur mixture.
Claim 6
Dependent Claim
77 words
In a process for preparing an asphalt emulsion composition, an improvement for preparing an asphalt phase comprising heating a paving grade asphalt to a temperature between about 200° and about 300° F., separately heating sulfur to above its melting point and below about 300° F., mixing the heated asphalt and molten sulfur at a temperature above the sulfur melting point and below about 300° F., and blending a liquid petroleum hydrocarbon with the asphalt and sulfur mixture.
Claim 7
Dependent Claim
39 words
The process of claim 4 wherein the amount of asphalt is between about 40 and about 70% , sulfur is between about 10 and about 50% , and hydrocarbon is between about 5 and about 35% , by weight.
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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) | 1983-07-08 | 1984-01-07 | 1984-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-08 | 1988-01-07 | 1988-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-08 | 1992-01-07 | 1992-07-08 | $7700.00 | Window Closed / Lapsed |