US3094514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process for aliphatic, conjugated dienes
Assignee: Goodrich Gulf Chemicals Inc
•
Filing: 1958-02-13
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Granted: 1963-06-18
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Expires: 1978-02-13
Abstract
No abstract record available.
Inventors
- 👤 Tucker Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F136/00; C08F136/02; C08F136/04; C08F136/06; Y; Y10; Y10S; Y10S526/00; Y10S526/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
THE METHOD WHICH COMPRISES POLYMERIZING AN ALIPHATIC CONJUGATED DIENE HYDROCARBON IN A HYDROCARBON DILUENT MEDIUM, IN THE SUBSTANTIAL ABSENCE OF OXYGEN, AT A TEMPERATURE BETWEEN -25 AND 50*C. AND IN THE PRESENCE OF A CATALYST DISSOLVED IN SAID HYDROCARBON MEDIUM AND INCLUDING AT LEAST 0.0001 GRAM MILLIMOLE OF COBALT PER LITER OF SAID DILUENT, SAID CATALYST PREPARED BY COMBINING (1) A SUBSTANTIALLY ANHYDROUS DIVALENT COBALT SALT (2) A MONO-ALKYL ALUMINUM DIHALIDE AND (3) A DIALKYL ALUMINUM MONOHALIDE, THE MOLAR RATIO OF SAID MONO-ALKYL ALUMINUM HALIDE TO SAID DIALKYL ALUMINUM HALIDE BEING IN THE RANGE OF 1:10 TO 10:1, AND SEPARATING A SOLID POLYMER OF SAID DIENE HYDROCARBON CONTAINING NOT MORE THAN ABOUT 5% GEL FROM THE RESULTING POLYMERIZATION MIXTURE.
Claim 2
Independent Claim
119 words
THE METHOD WHICH COMPRISES POLYMERIZING AN ALIPHATIC CONJUGATED DIENE HYDROCARBON IN A HYDROCARBON DILUENT MEDIUM, IN THE SUBSTANTIAL ABSENCE OF OXYGEN, AT A TEMPERATURE BETWEEN -25 AND 50*C. AND IN THE PRESENCE OF A CATALYST DISSOLVED IN SAID HYDROCARBON MEDIUM AND INCLUDING AT LEAST 0.0001 GRAM MILLIMOLE OF COBALT PER LITER OF SAID DILUENT, SAID CATALYST PREPARED BY COMBINING (1) A SUBSTANTIALLY ANHYDROUS DIVALENT COBALT SALT (2) A MONO-ALKYL ALUMINUM DIHALIDE AND (3) A DIALKYL ALUMINUM MONOHALIDE, THE MOLAR RATIO OF SAID MONO-ALKYL ALUMINUM HALIDE TO SAID DIALKYL ALUMINUM HALIDE BEING IN THE RANGE OF 1:10 TO 10:1, AND SEPARATING A SOLID POLYMER OF SAID DIENE HYDROCARBON CONTAINING NOT MORE THAN ABOUT 5% GEL FROM THE RESULTING POLYMERIZATION MIXTURE.
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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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |