US2529010A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins
Assignee: Phillips Petroleum Co
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Filing: 1946-04-15
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Granted: 1950-11-07
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Expires: 1966-04-15
Abstract
No abstract record available.
Inventors
- 👤 Alvin H Friedman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:14
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/14; C07C2/20; B; B01; B01J; B01J27/00; B01J27/06; C07C2527/00; C07C2527/06; C07C2527/08; C07C2527/12; C07C2527/1206
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A PROCESS FOR POLYMERIZING AN UNSATURATED POLYMERIZABLE HYDROCARBON AND FOR FORMING A CATALYST WHICH COMPRISES ADMIXING SAID UNSATURATED HYDROCARBONS WITH HYDROGEN FLUORIDE, CONTACTING THE RESULTING ADMIXTURE WHILE IN THE VAPOR PHASE WITH A SILICA CONTAINING MATERIAL CAPABLE OF REACTING WITH SAID HYDROGEN FLUORIDE TO FORM SILICON TETRAFLUORIDE AND POLYMERIZING SAID UNSATURATED HYDROCARBON IN THE PRESENCE OF THE THUS FORMED SILICON TETRAFLUORIDE WHILE MAINTAINING SAID HYDROCARBON IN A VAPOR PHASE.
Claim 2
Dependent Claim
69 words
A PROCESS FOR POLYMERIZING AN UNSATURATED POLYMERIZABLE HYDROCARBON AND FOR FORMING A CATALYST WHICH COMPRISES ADMIXING SAID UNSATURATED HYDROCARBONS WITH HYDROGEN FLUORIDE, CONTACTING THE RESULTING ADMIXTURE WHILE IN THE VAPOR PHASE WITH A SILICA CONTAINING MATERIAL CAPABLE OF REACTING WITH SAID HYDROGEN FLUORIDE TO FORM SILICON TETRAFLUORIDE AND POLYMERIZING SAID UNSATURATED HYDROCARBON IN THE PRESENCE OF THE THUS FORMED SILICON TETRAFLUORIDE WHILE MAINTAINING SAID HYDROCARBON IN A VAPOR PHASE.
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) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |