US3334058A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of dispersing asphaltenes in rubber
Assignee: Standard Oil Co
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Filing: 1964-01-07
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Granted: 1967-08-01
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Robert M Alm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
C; C08; C08L; C08L9/00; C08F; C08F36/00; C08F36/02; C08F36/04; C08L9/06; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
THE PROCESS OF DISPERSING ASPHALTENES IN A LATEX OF SYNTHETIC DIENE RUBBER WHICH COMPRISES ADDING AN AQUEOUS DISPERISON OF A HYDROCARBON SOLUTION OF ASPHALTENES TO A LATEX OF SYNTHETIC DIENE RUBBER, SUBJECTING THE MIXTURE TO HIGH SHEAR MIXING AND COAGULATING THE ASPHALTENESCONTAINING RUBBER WHEREIN SAID PROCESS THE WEIGHT RATIO OF ASPHALTENES TO SAID RUBBER IN THE LATEX IS IN THE RANGE OF 10 TO 100 PER PARTS OF RUBBER AND THE PARTICLE SIZE OF ASPHALTENES DISPERSED IN THE COAGULATED RUBBER IS OF A DIAMETER NOT EXCEEDING 5 MICRONS.
Claim 2
Dependent Claim
88 words
THE PROCESS OF DISPERSING ASPHALTENES IN A LATEX OF SYNTHETIC DIENE RUBBER WHICH COMPRISES ADDING AN AQUEOUS DISPERISON OF A HYDROCARBON SOLUTION OF ASPHALTENES TO A LATEX OF SYNTHETIC DIENE RUBBER, SUBJECTING THE MIXTURE TO HIGH SHEAR MIXING AND COAGULATING THE ASPHALTENESCONTAINING RUBBER WHEREIN SAID PROCESS THE WEIGHT RATIO OF ASPHALTENES TO SAID RUBBER IN THE LATEX IS IN THE RANGE OF 10 TO 100 PER PARTS OF RUBBER AND THE PARTICLE SIZE OF ASPHALTENES DISPERSED IN THE COAGULATED RUBBER IS OF A DIAMETER NOT EXCEEDING 5 MICRONS.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |