Patent US3067188A successfully refreshed from Google Patents.
US3067188A
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Polymerization of 1, 3-butadiene with a tici-mocl-znr catalyst
Assignee: Phillips Petroleum Co
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Filing: 1959-01-16
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Granted: 1962-12-04
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Expires: 1979-01-16
Abstract
No abstract record available.
Inventors
- 👤 Floyd E Naylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:45
CPC Classifications
C; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
123 words
A POLYMERIZATION PROCESS FOR PRODUCING A POLYBUTADIENE AT LEAST 80 PERCENT OF WHICH IS FORMED BY 1,2-ADDITION WHICH COMPRISES CONTACTING 1,3-BUTADIENE WITH A CATALYST WHICH FORMS ON MIXING TOGETHER (A) DIALKYLZINC CONTAINING UP TO 10 CARBON ATOMS IN EACH ALKYL GROUP, (B) TITANIUM TETRACHLORIDE, AND (C) MOLYBDENUM PENTACHLORIDE, THE TOTAL CATALYST BEING 0.25 TO 6 WEIGHT PERCENT BASED ON THE MONOMER CHARGED, THE AMOUNT OF DIALKYLZINC BEING 0.8 TO 2.5 MOLS PER MOL OF TOTAL HALIDE AND THE AMOUNT OF TITANIUM TETRECHLORIDE BEING 1 TO 3 MOLES PER MOL OF MOLYBDENUM PENTACHLORIDE, SAID CONTACTING OCCURRING IN THE PRESENCE OF AN AROMATIC HYDROCARBON DILUENT AT A TEMPERATURE IN THE RANGE OF 10 TO 80*C. AND UNDER AUTOGENOUS PRESSURE, AND RECOVERING THE POLYMER SO PRODUCED.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |