US3053916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of ethylene in the presence of ketone promoters
Assignee: Union Carbide Corp
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Filing: 1960-07-26
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Granted: 1962-09-11
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Expires: 1980-07-26
Abstract
No abstract record available.
Inventors
- 👤 Thomas P Wilson
- 👤 George F Hurley
- 👤 Robert M Manyik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:43
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2523/00; C07C2523/02; C07C2523/04; C07C2531/00; C07C2531/02; C07C2531/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN THE PROCESS FOR PRODUCING LIQUID CONDENSATES OF ETHYLENE, WHICH COMPRISES INTRODUCING A CHARGING STOCK CONSISTING OF ETHYLENE, AN INERT ORGANIC DILUENT, AND AS A CATALYST A FINELY DIVIDED SUSPENSION OF A METAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM AND SODIUM INTO A REACTION ZONE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 325*C. AND A PRESSURE OF AT LEAST ABOUT 200 P.S.I.G. AND RECOVERING AND FRACTIONALLY DISTILLING THE LIQUID ETHYLENE CONDENSATES TAHUS PRODUCED, THE IMPORVEMENT WHICH COMPRISES CARRYING OUT THE CATALYTIC CONDENSATION IN CONTACT WITH A KETYL-FORMING PROMOTER SELECTED FROM THE GROUP CONSISTING OF DIARYL KETONES AND QUINONES.
Claim 2
Dependent Claim
101 words
IN THE PROCESS FOR PRODUCING LIQUID CONDENSATES OF ETHYLENE, WHICH COMPRISES INTRODUCING A CHARGING STOCK CONSISTING OF ETHYLENE, AN INERT ORGANIC DILUENT, AND AS A CATALYST A FINELY DIVIDED SUSPENSION OF A METAL SELECTED FROM THE GROUP CONSISTING OF POTASSIUM AND SODIUM INTO A REACTION ZONE AT A TEMPERATURE OF FROM ABOUT 100*C. TO ABOUT 325*C. AND A PRESSURE OF AT LEAST ABOUT 200 P.S.I.G. AND RECOVERING AND FRACTIONALLY DISTILLING THE LIQUID ETHYLENE CONDENSATES TAHUS PRODUCED, THE IMPORVEMENT WHICH COMPRISES CARRYING OUT THE CATALYTIC CONDENSATION IN CONTACT WITH A KETYL-FORMING PROMOTER SELECTED FROM THE GROUP CONSISTING OF DIARYL KETONES AND QUINONES.
References Cited (Backward Citations)
US2740820A
Cited
US2881234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |