US2554681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reduction activated peroxygen catalyzed synthetic rubber emulsion polymerizations
Assignee: Uniroyal Inc
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Filing: 1949-09-08
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Granted: 1951-05-29
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Expires: 1969-09-08
Abstract
No abstract record available.
Inventors
- 👤 Vadim C Neklutin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:07
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AN AQUEOUS EMULSION MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENES-1,3 AND MIXTURES OF BUTADIENES-1,3 WITH COMPOUNDS WHICH CONTAIN A SINGLE CH2=C< GROUP AND ARE COPOLYMERIZABLE THEREWITH, IN THE PRESENCE OF A PEROXYGEN CATALYST, AND FERROUS SILICATE OBTAINED BY THE INTERACTION OF FERROUS SULFATE AND SODIUM SILICATE, THE AMOUNT OF SAID FERROUS SILICATE BEING LESS THAN 1%.
Claim 2
Dependent Claim
63 words
THE PROCESS WHICH COMPRISES POLYMERIZING IN AN AQUEOUS EMULSION MATERIAL SELECTED FROM THE GROUP CONSISTING OF BUTADIENES-1,3 AND MIXTURES OF BUTADIENES-1,3 WITH COMPOUNDS WHICH CONTAIN A SINGLE CH2=C< GROUP AND ARE COPOLYMERIZABLE THEREWITH, IN THE PRESENCE OF A PEROXYGEN CATALYST, AND FERROUS SILICATE OBTAINED BY THE INTERACTION OF FERROUS SULFATE AND SODIUM SILICATE, THE AMOUNT OF SAID FERROUS SILICATE BEING LESS THAN 1%.
References Cited (Backward Citations)
US2460300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |