US3119803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of ethylene with a decanoyl peroxide catalyst
Assignee: Spencer Chemical Co
•
Filing: 1961-05-22
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Granted: 1964-01-28
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Expires: 1981-05-22
Abstract
No abstract record available.
Inventors
- 👤 Sylvester P Horkowitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:47
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A PROCESS OF POLYMERIZING ETHYLENE TO PROVIDE A NORMALLY SOLID, ESSENTIALLY ODORLESS POLYMER WHICH COMPRISES EXPOSING ETHYLENE TO AN INITIATING QUANTITY OF DECANOYL PEROXIDE UNDER POLYMERIZING CONDITIONS, INCLUDING SUPER-ATMOSPHERIC PRESSURE AND A POLYMERIZATION TEMPERATURE UPWARDS OF 200*F., AND RECOVERING SAID POLYETHYLENE.
Claim 2
Dependent Claim
41 words
A PROCESS OF POLYMERIZING ETHYLENE TO PROVIDE A NORMALLY SOLID, ESSENTIALLY ODORLESS POLYMER WHICH COMPRISES EXPOSING ETHYLENE TO AN INITIATING QUANTITY OF DECANOYL PEROXIDE UNDER POLYMERIZING CONDITIONS, INCLUDING SUPER-ATMOSPHERIC PRESSURE AND A POLYMERIZATION TEMPERATURE UPWARDS OF 200*F., AND RECOVERING SAID POLYETHYLENE.
References Cited (Backward Citations)
US2754278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |