US3265759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization process using dispersed sodium
Assignee: Bridgestone Firestone Inc
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Filing: 1963-04-25
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Granted: 1966-08-09
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Expires: 1983-04-25
Abstract
No abstract record available.
Inventors
- 👤 Alfred R Cain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:51
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/26; C07C2/38; C07C2/40; C07C2/403; C07C2/406; C08F10/00; C07C2523/00; C07C2523/02; C07C2523/04; C07C2527/00; C07C2527/06; C07C2527/125; C07C2527/126; C07C2527/135; C07C2531/00; C07C2531/02; C07C2531/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE IMPROVEMENT IN THE DISPERSION POLYMERIZATION OF HYDROCARBON OLEFINIC MONOMER BY A CATALYST SYSTEM WHICH INCLUDES DODIUM, TETRAKIS (DIMETHYLAMINO) SILANE AND TI3 AICI12, WHICH METHOD COMPRISES DISPERING THE SODIUM IN A BLEND OF 25 TO 75 PERCENT (BY WEIGHT) OF A LIGHT MINERAL OIL AND 75 TO 25 PERCENT OF PETROLATUM, AND THEN POLYMERIZING THE MONOMER WITH A CATALYST SYSTEM COMPRISING SAID DISPERESED SODIUM WITH DISPERSED TETRAKIS (DIMETHYLAMINO) SILANE AND TI3AICI12.
Claim 2
Dependent Claim
71 words
THE IMPROVEMENT IN THE DISPERSION POLYMERIZATION OF HYDROCARBON OLEFINIC MONOMER BY A CATALYST SYSTEM WHICH INCLUDES DODIUM, TETRAKIS (DIMETHYLAMINO) SILANE AND TI3 AICI12, WHICH METHOD COMPRISES DISPERING THE SODIUM IN A BLEND OF 25 TO 75 PERCENT (BY WEIGHT) OF A LIGHT MINERAL OIL AND 75 TO 25 PERCENT OF PETROLATUM, AND THEN POLYMERIZING THE MONOMER WITH A CATALYST SYSTEM COMPRISING SAID DISPERESED SODIUM WITH DISPERSED TETRAKIS (DIMETHYLAMINO) SILANE AND TI3AICI12.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |