US3275586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asphaltic products
Assignee: Lubrizol Corp
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Filing: 1962-10-15
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Granted: 1966-09-27
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Expires: 1982-10-15
Abstract
No abstract record available.
Inventors
- 👤 Robert G Wurstner
- 👤 Richard W Jahnke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:15
CPC Classifications
C; C08; C08L; C08L95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
A PROCESS FOR MAKING AN IMPROVED ASPHALTIC COMPOSITION WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 50*C. TO ABOUT 250*C., A MIXTURE OF: (A) 100 PARTS OF A PETROLEUM RESIDUUM HAVING A PENETRATION VALUE WITHIN THE RANGE OF FROM ABOUT 150 TO ABOUT 300, (B) FROM ABOUT 2 TO ABOUT 10 PARTS OF LOWER OLEFIN POLYMER OBTAINED FROM AN OLEFIN HAVING FROM 2 TO ABOUT 6 CARBON ATOMS, THE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1000, AND (C) FROM ABOUT 1 TO 6 PARTS OF A PHOSPHORUS HALIDE.
Claim 2
Dependent Claim
95 words
A PROCESS FOR MAKING AN IMPROVED ASPHALTIC COMPOSITION WHICH COMPRISES REACTING AT A TEMPERATURE WITHIN THE RANGE OF FROM ABOUT 50*C. TO ABOUT 250*C., A MIXTURE OF: (A) 100 PARTS OF A PETROLEUM RESIDUUM HAVING A PENETRATION VALUE WITHIN THE RANGE OF FROM ABOUT 150 TO ABOUT 300, (B) FROM ABOUT 2 TO ABOUT 10 PARTS OF LOWER OLEFIN POLYMER OBTAINED FROM AN OLEFIN HAVING FROM 2 TO ABOUT 6 CARBON ATOMS, THE POLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST ABOUT 1000, AND (C) FROM ABOUT 1 TO 6 PARTS OF A PHOSPHORUS HALIDE.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |