US3284431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of cis-1, 4 polybutadiene with a higher fatty acid salt of cobalt-dihydrocarbon aluminum halide-aluminum catalyst
Assignee: Bridgestone Firestone Inc
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Filing: 1963-03-18
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Granted: 1966-11-08
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Expires: 1983-03-18
Abstract
No abstract record available.
Inventors
- 👤 Gippin Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:48
CPC Classifications
C; C08; C08F; C08F136/00; C08F136/02; C08F136/04; C08F136/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
PROCESS OF POLYMERIZING BUTADIENE TO FORM POLYMERS HIGH IN CIS-1,4-STRUCTURE, WHICH COMPRISES CONTACTING THE SAME WITH A CATALYST CONSISTING OF THE REATION PRODUCT OF (1) A DIHYDROCARBON ALUMINUM HALIDE IN WHICH THE HYDROCARBON GROUPS EACH CONTAIN FROM 1 TO 30 CARBON ATOMS, (2)A HIGHER FATTY ACID SALT OF COBALTT AND (3) AN ACTIVATING AGENT CONSISTING OF METALLIC ALUMINUM, THE DIHYDROCARBON ALUMINUM HALIDE BEING SUPPLIED TO THE EXTENT OF FROM 1 TO 100 MILLIMOLS PER 100 GRAMS OF BUTADIENE, THE HIGHER FATTY ACID SALT OF COBALT BEING SUPPLIED THE EXTENT OF FROM 005 TO 1.0 MILLIMOLS PER 100 GRAMS OF BUTADIENE, AND THE ACTIVATING AGENT BEING SUPPLIED IN A RATIO OF 0.01 TO 3.0 MILLIMOLS OF ACTIVATING AGENT PER MILLIMOL OF DIHYDROCARBON ALUMINUM HALIDE.
Claim 2
Dependent Claim
123 words
PROCESS OF POLYMERIZING BUTADIENE TO FORM POLYMERS HIGH IN CIS-1,4-STRUCTURE, WHICH COMPRISES CONTACTING THE SAME WITH A CATALYST CONSISTING OF THE REATION PRODUCT OF (1) A DIHYDROCARBON ALUMINUM HALIDE IN WHICH THE HYDROCARBON GROUPS EACH CONTAIN FROM 1 TO 30 CARBON ATOMS, (2)A HIGHER FATTY ACID SALT OF COBALTT AND (3) AN ACTIVATING AGENT CONSISTING OF METALLIC ALUMINUM, THE DIHYDROCARBON ALUMINUM HALIDE BEING SUPPLIED TO THE EXTENT OF FROM 1 TO 100 MILLIMOLS PER 100 GRAMS OF BUTADIENE, THE HIGHER FATTY ACID SALT OF COBALT BEING SUPPLIED THE EXTENT OF FROM 005 TO 1.0 MILLIMOLS PER 100 GRAMS OF BUTADIENE, AND THE ACTIVATING AGENT BEING SUPPLIED IN A RATIO OF 0.01 TO 3.0 MILLIMOLS OF ACTIVATING AGENT PER MILLIMOL OF DIHYDROCARBON ALUMINUM HALIDE.
References Cited (Backward Citations)
US3072630A
Cited
GB790399A
Cited
US3157627A
Cited
US3161628A
Cited
AT213051B
Cited
US3101327A
Cited
US3111510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |