Patent US3043823A successfully refreshed from Google Patents.
US3043823A
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Process utilizing carbon disulfide in aqueous emulsion polymerization of fluorinated monoolefins
Assignee: 3M Co
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Filing: 1958-08-18
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Granted: 1962-07-10
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Expires: 1978-08-18
Abstract
No abstract record available.
Inventors
- 👤 Russell M Mantell
- 👤 John M Hoyt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:59
CPC Classifications
C; C08; C08F; C08F14/00; C08F14/18; C08F14/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
IN A PROCESS FOR POLYMERIZING A MONOMER CHARGE CONSISTING OF AT LEAST ONE POLYMERIZABLE FLUORINATED MONLEFIN HAVING FROM 2 TO 5 CARBON ATOMS AT A TEMPERATURE BETWEEN 0*C. AND 100*C. IN THE PRESENCE OF A POLYMERIZATION INITIATOR AND IN AN AQUEOUS MEDIUM HAVING A PH FROM M TO ABOUT 14 AND HAVING A FLUORINATED DISPERSING AGENT, THE IMPROVEMENT WHICH COMPRISES ADDING CARBON DISULFIDE TO SAID AQUEOUS MEDIUM IN AN AMOUNT BETWEEN 1 AND 50 PARTS BY WEIGHT PER 100 PARTS MONOMER CHARGE.
Claim 2
Dependent Claim
82 words
IN A PROCESS FOR POLYMERIZING A MONOMER CHARGE CONSISTING OF AT LEAST ONE POLYMERIZABLE FLUORINATED MONLEFIN HAVING FROM 2 TO 5 CARBON ATOMS AT A TEMPERATURE BETWEEN 0*C. AND 100*C. IN THE PRESENCE OF A POLYMERIZATION INITIATOR AND IN AN AQUEOUS MEDIUM HAVING A PH FROM M TO ABOUT 14 AND HAVING A FLUORINATED DISPERSING AGENT, THE IMPROVEMENT WHICH COMPRISES ADDING CARBON DISULFIDE TO SAID AQUEOUS MEDIUM IN AN AMOUNT BETWEEN 1 AND 50 PARTS BY WEIGHT PER 100 PARTS MONOMER CHARGE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |