US2514979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax composition containing propylene-butadiene polymer
Assignee: Atlantic Richfield Co
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Filing: 1947-04-16
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Granted: 1950-07-11
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Expires: 1967-04-16
Abstract
No abstract record available.
Inventors
- 👤 William R Turner
- 👤 Randall G Heillgmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:41
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; C; C08; C08L; C08L91/00; C08L91/06; C08L91/08; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A COMPOSITION COMPRISING HYDROCARBON WAX AND FROM 5% TO 50% BY WEIGHT OF A POLYMER HAVING A MOLECULAR WEIGHT BETWEEN 2,000 AND 4,000 AND AN IODINE NUMBER BETWEEN 125 AND 175 OBTAINED BY TREATING A PROPYLENE-BUTADIENE MIXTURE WITH A FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE BETWEEN -50*C. AND -100*C., THE PROPYLENE COMPRISING FROM 40% TO 60% BY WEIGHT OF THE PROPYLENE-BUTADIENE MIXTURE.
Claim 2
Dependent Claim
61 words
A COMPOSITION COMPRISING HYDROCARBON WAX AND FROM 5% TO 50% BY WEIGHT OF A POLYMER HAVING A MOLECULAR WEIGHT BETWEEN 2,000 AND 4,000 AND AN IODINE NUMBER BETWEEN 125 AND 175 OBTAINED BY TREATING A PROPYLENE-BUTADIENE MIXTURE WITH A FRIEDEL-CRAFTS CATALYST AT A TEMPERATURE BETWEEN -50*C. AND -100*C., THE PROPYLENE COMPRISING FROM 40% TO 60% BY WEIGHT OF THE PROPYLENE-BUTADIENE MIXTURE.
References Cited (Backward Citations)
US2142980A
Cited
US2391095A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |