US3597407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diene polymerization with organometal and iron complex
Assignee: Phillips Petroleum Co
•
Filing: 1969-06-11
•
Granted: 1971-08-03
•
Expires: 1989-06-11
Abstract
Abstract POLYMERS OF CONJUGATED DIENES ARE PREPARED BY CONTACTING THE MONOMER SYSTEM WITH A CATALYST WHICH FORMS ON MIXING (1) A COMPOUND SELECTED FROM THE GROUP CONSISTING OF CERTAIN ORGANOZIC AND ORGANOALUMINUM COMPOUNDS AND (2) THE REACTION PRODUCT OF AN IRON SALT WITH AN N,N-DIMETHYLAMIDE OF A FATTY ACID.
Inventors
- 👤 Henry L Hsieh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/26; C08G65/2642; C08G65/269; C08F; C08F236/00; C08F236/02; C08F236/04; C08F36/00; C08F36/02; C08F36/04; C08G65/04; C08G65/06; C08G65/08; C08G65/10; C08G65/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |