Patent US2694053A successfully refreshed from Google Patents.
US2694053A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trimethylene polyamines as activators for emulsion polymerization reactions
Assignee: Phillips Petroleum Co
•
Filing: 1950-01-30
•
Granted: 1954-11-09
•
Expires: 1970-01-30
Abstract
No abstract record available.
Inventors
- 👤 Carl A Uraneck
- 👤 Spencer H Landes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:49
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; Y; Y10; Y10S; Y10S526/00; Y10S526/911
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN THE PRODUCTION OF SYNTHETIC RUBBER BY POLYMERIZATION OF A MONOMERIC MATERIAL COMPRISING A CONJUGATED DIENE HAVING NOT MORE THAN SIX CARBON ATOMS PER MOLECULE WHILE DISPERSED IN AN AQUEOUS MEDIUM IN THE PRESENCE OF A CATALYTIC COMPOSITION COMPRISING AN OXIDANT AND A REDUCTANT, THE IMPROVEMENT WHICH COMPRISES POLYMERIZING SAID MONOMERIC MATERIAL IN THE PRESENCE OF A REDUCTANT TOGETHER WITH A MATERIAL WHICH ACTS AS AN OXIDANT IN THE PRESENCE OF SAID REDUCTANT UNDER THE CONDITIONS OF POLYMERIZATION, SAID REDUCTANT COMPRISING A COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
86 words
IN THE PRODUCTION OF SYNTHETIC RUBBER BY POLYMERIZATION OF A MONOMERIC MATERIAL COMPRISING A CONJUGATED DIENE HAVING NOT MORE THAN SIX CARBON ATOMS PER MOLECULE WHILE DISPERSED IN AN AQUEOUS MEDIUM IN THE PRESENCE OF A CATALYTIC COMPOSITION COMPRISING AN OXIDANT AND A REDUCTANT, THE IMPROVEMENT WHICH COMPRISES POLYMERIZING SAID MONOMERIC MATERIAL IN THE PRESENCE OF A REDUCTANT TOGETHER WITH A MATERIAL WHICH ACTS AS AN OXIDANT IN THE PRESENCE OF SAID REDUCTANT UNDER THE CONDITIONS OF POLYMERIZATION, SAID REDUCTANT COMPRISING A COMPOUND HAVING THE FORMULA
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) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |