US3092614A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ethylene polymerization process
Assignee: Union Carbide Corp
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Filing: 1962-02-15
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Granted: 1963-06-04
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Expires: 1982-02-15
Abstract
No abstract record available.
Inventors
- 👤 John F Erdmann
- 👤 Charles R Welter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:55
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN A BULK TUBULAR REACTOR CONTINUOUS PROCESS FOR POLYMERIZING ETHYLENE AT A TEMPERATURE BETWEEN ABOUT 160*C. AND A PRESSURE ABOVE 15,000 P.S.I., THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE POLYMERIZATION REACTION IN THE PRESENCE OF A CATALYST MIXTURE COMPRISING FROM ABOUT 50 TO ABOUT 500 PARTS PER MILLION OF OXYGEN AND FROM ABOUT 1 TO ABOUT 100 PARTS PER MILLION PF TERITARY BUTYL HYDROPEROXIDE, SAID CATALYST CONCERTRATION BEING ON A MOLAR BASIS BASED ON THE ETHYLENE CHARGED.
Claim 2
Dependent Claim
76 words
IN A BULK TUBULAR REACTOR CONTINUOUS PROCESS FOR POLYMERIZING ETHYLENE AT A TEMPERATURE BETWEEN ABOUT 160*C. AND A PRESSURE ABOVE 15,000 P.S.I., THE IMPROVEMENT WHICH COMPRISES CONDUCTING THE POLYMERIZATION REACTION IN THE PRESENCE OF A CATALYST MIXTURE COMPRISING FROM ABOUT 50 TO ABOUT 500 PARTS PER MILLION OF OXYGEN AND FROM ABOUT 1 TO ABOUT 100 PARTS PER MILLION PF TERITARY BUTYL HYDROPEROXIDE, SAID CATALYST CONCERTRATION BEING ON A MOLAR BASIS BASED ON THE ETHYLENE CHARGED.
References Cited (Backward Citations)
GB591335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |