US3271475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic polymerization of olefions to liquid polymers
Assignee: Monsanto Co
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Filing: 1963-09-30
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Granted: 1966-09-06
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 William E Weesner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:34
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; C07C2521/00; C07C2521/18; C07C2523/00; C07C2523/16; C07C2523/20; C07C2523/22; C07C2523/24; C07C2523/26; C07C2523/28; C07C2523/30; C07C2523/70; C07C2523/74; C07C2523/75
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR THE POLYMERIZATION OF A MONO-OLEFIN HAVING FROM 2 TO ABOUT 10 CARBON ATOMS TO A LIQUID OLEFIN PRODUCT WHICH COMPRISES CONTACTING SAID MONOOLEFIN UNDER POLYMERIZATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF AN ADSORBENT CARBON AND A MINOR PROPORTION OF A MIXTURE OF COBALTOUS OXIDE AND AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM, CHROMIUM, TUNGSTEN, AND VANADIUM, THE MOLE RATIO OF SAID COBALTOUS OXIDE TO OF MOLYBDENUM, CHROMIUM, TUNGSTEN, AND VANADIUM BEING AT LEAST 1:1, AND RECOVERING THE LIQUID POLYMER THUS ING AT LEAST 1:1, AND RECOVERING THE LIQUID POLYMER THUS PRODUCED.
Claim 2
Dependent Claim
104 words
A PROCESS FOR THE POLYMERIZATION OF A MONO-OLEFIN HAVING FROM 2 TO ABOUT 10 CARBON ATOMS TO A LIQUID OLEFIN PRODUCT WHICH COMPRISES CONTACTING SAID MONOOLEFIN UNDER POLYMERIZATION CONDITIONS WITH A CATALYST CONSISTING ESSENTIALLY OF A MAJOR PROPORTION OF AN ADSORBENT CARBON AND A MINOR PROPORTION OF A MIXTURE OF COBALTOUS OXIDE AND AN OXIDE OF A METAL SELECTED FROM THE GROUP CONSISTING OF MOLYBDENUM, CHROMIUM, TUNGSTEN, AND VANADIUM, THE MOLE RATIO OF SAID COBALTOUS OXIDE TO OF MOLYBDENUM, CHROMIUM, TUNGSTEN, AND VANADIUM BEING AT LEAST 1:1, AND RECOVERING THE LIQUID POLYMER THUS ING AT LEAST 1:1, AND RECOVERING THE LIQUID POLYMER THUS PRODUCED.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |