US3072592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for polymerization of fluorinated nitrosoalkane and solution of resulting polymer in fluorinated organic solvent
Assignee: 3M Co
•
Filing: 1960-02-23
•
Granted: 1963-01-08
•
Expires: 1980-02-23
Abstract
No abstract record available.
Inventors
- 👤 Jr George H Crawford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:41
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/24
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A POLYMERIZATION PROCESS WHICH COMPRISES COPOLYMERIZING A FLUORINE-CONTAINING NITROSOALKANE WITH AN ETHYLENICALLY UNSATURATED MONOMER WHILE THE MONOMERS ARE IN SOLUTION IN A FLUORINATED ORGANIC SOLVENT AT A TEMPERATURE BETWEEN ABOUT -50*C. AND ABOUT 100*C. TO PRODUCE A HIGH MOLECULAR WEIGHT SOLID COPOLYMER HAVING A MOLECULAR WEIGHT ABOVE 50,000 AND CONTAINING BETWEEN ABOUT 25 AND ABOUT 75 MOL PERCENT OF A FLUORINEMONOMERIC UNITS.
Claim 2
Dependent Claim
62 words
A POLYMERIZATION PROCESS WHICH COMPRISES COPOLYMERIZING A FLUORINE-CONTAINING NITROSOALKANE WITH AN ETHYLENICALLY UNSATURATED MONOMER WHILE THE MONOMERS ARE IN SOLUTION IN A FLUORINATED ORGANIC SOLVENT AT A TEMPERATURE BETWEEN ABOUT -50*C. AND ABOUT 100*C. TO PRODUCE A HIGH MOLECULAR WEIGHT SOLID COPOLYMER HAVING A MOLECULAR WEIGHT ABOVE 50,000 AND CONTAINING BETWEEN ABOUT 25 AND ABOUT 75 MOL PERCENT OF A FLUORINEMONOMERIC UNITS.
Claim 3
Dependent Claim
65 words
A SOLUTION COMPRISING A SOLID HIGH MOLECULAR WEIGHT COPOLYMER HAVING A MOLECULAR WEIGHT ABOVE 50,000 OF BETWEEN ABOUT 25 AND ABOUT 75 MOL PERCENT OF A FLUORINECONTAINING NITROSOALKANE AND A FLUORINE-CONTAINING ETHYLENICALLY UNSATURATED MONOMER DISSOLVED IN A FLUORINE-CONTAINING ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF PERFLUOROPROPENE, PERFLUOROCYCLOBUTANE, PERFLUOROOCTANE, PERFLUORO C6 CYCLIC ETHER, PERFLUORO C8 CYCLIC ETHER, PERFLUOROTRIBUTYL AMINE, 1,1,2-TRICHLOROTRIFLUOROETHANE, XYLENE HEXAFLUORIDE AND MIXTURES THEREOF.
Claim 4
Dependent Claim
65 words
A SOLUTION COMPRISING A SOLID HIGH MOLECULAR WEIGHT COPOLYMER HAVING A MOLECULAR WEIGHT ABOVE 50,000 OF BETWEEN ABOUT 25 AND ABOUT 75 MOL PERCENT OF A FLUORINECONTAINING NITROSOALKANE AND A FLUORINE-CONTAINING ETHYLENICALLY UNSATURATED MONOMER DISSOLVED IN A FLUORINE-CONTAINING ORGANIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF PERFLUOROPROPENE, PERFLUOROCYCLOBUTANE, PERFLUOROOCTANE, PERFLUORO C6 CYCLIC ETHER, PERFLUORO C8 CYCLIC ETHER, PERFLUOROTRIBUTYL AMINE, 1,1,2-TRICHLOROTRIFLUOROETHANE, XYLENE HEXAFLUORIDE AND MIXTURES THEREOF.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |