US3244768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic polymerization of propylene
Assignee: Texaco Inc
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Filing: 1964-10-19
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Granted: 1966-04-05
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Holt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:59
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/30; C08; C08F; C08F10/00; C08F10/04; C08F10/06; C07C2529/00; C07C2529/04; C07C2531/00; C07C2531/02; C07C2531/12; C07C2531/14; C07C2531/26; C07C2531/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR THE POLYMERIZATION OF PROPYLENE WITH A TITANIUM TETRACHLORIDE-TRIALKYALUMINUM COMPLEX FORMED ON A CALCIUM ALUMINO-SILICATE MOLECULAR SIEVE SUPPORT WHICH COMPRISES PASSING THE PROPYLENE IN VAPOR PHASE AT A TEMPERATURE OF 390* TO 550*F. INTO A REACTION ZONE IN CONTACT WITH A SOLID FIXED BED OF A CALCIUM ALUMINOSILICATE MOLECULAR SIEVE CONTAINING ADSORBED TITANIUM TETRACHLORIDE-TRIALKYLALUMINUM COMPLEX CATALYST UNDER CONDITIONS PRODUCING ESSENTIALLY A LIQUID POLYMER BOILING IN THE GASOLINE-JET FUEL BOILING RANGE, AND CONTINUOUSLY REMOVING FROM THE SAID FIXED BED IN THE REACTION ZONE DURING THE PROGRESS OF THE REACTION THE SAID LIQUID POLYMER SO PRODUCED.
Claim 2
Dependent Claim
96 words
A PROCESS FOR THE POLYMERIZATION OF PROPYLENE WITH A TITANIUM TETRACHLORIDE-TRIALKYALUMINUM COMPLEX FORMED ON A CALCIUM ALUMINO-SILICATE MOLECULAR SIEVE SUPPORT WHICH COMPRISES PASSING THE PROPYLENE IN VAPOR PHASE AT A TEMPERATURE OF 390* TO 550*F. INTO A REACTION ZONE IN CONTACT WITH A SOLID FIXED BED OF A CALCIUM ALUMINOSILICATE MOLECULAR SIEVE CONTAINING ADSORBED TITANIUM TETRACHLORIDE-TRIALKYLALUMINUM COMPLEX CATALYST UNDER CONDITIONS PRODUCING ESSENTIALLY A LIQUID POLYMER BOILING IN THE GASOLINE-JET FUEL BOILING RANGE, AND CONTINUOUSLY REMOVING FROM THE SAID FIXED BED IN THE REACTION ZONE DURING THE PROGRESS OF THE REACTION THE SAID LIQUID POLYMER SO PRODUCED.
References Cited (Backward Citations)
US3008943A
Cited
US3068306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-04 | 1969-10-04 | 1970-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-04 | 1973-10-04 | 1974-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-04 | 1977-10-04 | 1978-04-05 | $7700.00 | Window Closed / Lapsed |