US3072625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyamine cross-linked copolymer of a fluorine-substituted nitrosoalkane and an ethylenically unsaturated halogenated olefin and process therefor
Assignee: 3M Co
•
Filing: 1959-08-07
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Granted: 1963-01-08
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Expires: 1979-08-07
Abstract
No abstract record available.
Inventors
- 👤 Alvin M Borders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:40
CPC Classifications
C; C08; C08G; C08G73/00; C08G73/24; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A PERFLUOROCARBON SOLVENT-SOLUBLE SOLID LINEAR COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 50,000 OF A FLUORIDE-SUBSTITUTED NITROSOALKANE HAVING LESS THAN 13 CARBON ATOMS PER MOLECULE AND AN ETHYLENICALLY UNSATURATED HALOGENATED MONOOLEFIN, THE HALOGENS OF SAID OLEFIN BEING NORMALLY GASEOUS HALOGENS, CROSS-LINKED WITH A POLYAMINE CONTAINING AT LEAST ONE HYDROGEN ATOM ON THE AMINO NITROGENS.
Claim 2
Dependent Claim
55 words
A PERFLUOROCARBON SOLVENT-SOLUBLE SOLID LINEAR COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 50,000 OF A FLUORIDE-SUBSTITUTED NITROSOALKANE HAVING LESS THAN 13 CARBON ATOMS PER MOLECULE AND AN ETHYLENICALLY UNSATURATED HALOGENATED MONOOLEFIN, THE HALOGENS OF SAID OLEFIN BEING NORMALLY GASEOUS HALOGENS, CROSS-LINKED WITH A POLYAMINE CONTAINING AT LEAST ONE HYDROGEN ATOM ON THE AMINO NITROGENS.
Claim 3
Dependent Claim
61 words
A PROCESS FOR CROSS-LINKING WHICH COMPRISES CROSSLINKING A PERFLUOROCARBON SELVENT-SOLUBLE SOLID LINEAR COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 50,000 OF A PERFLUORINATED NITROSOALKANE HAVING LESS THAN 13 CARBON ATOMS PER MOLECULE AND AN ETHYLENICALLY UNSATURATED PERFLUORINATED MONOOLEFIN WITH A POLYAMINE CONTAINING AT LEAST ONE HYDROGEN ATOM ON THE AMINO NITROGENS AT A TEMPERATURE BETWEEN ABOUT 20* AND ABOUT 250*C.
Claim 4
Dependent Claim
61 words
A PROCESS FOR CROSS-LINKING WHICH COMPRISES CROSSLINKING A PERFLUOROCARBON SELVENT-SOLUBLE SOLID LINEAR COPOLYMER HAVING A MOLECULAR WEIGHT OF AT LEAST 50,000 OF A PERFLUORINATED NITROSOALKANE HAVING LESS THAN 13 CARBON ATOMS PER MOLECULE AND AN ETHYLENICALLY UNSATURATED PERFLUORINATED MONOOLEFIN WITH A POLYAMINE CONTAINING AT LEAST ONE HYDROGEN ATOM ON THE AMINO NITROGENS AT A TEMPERATURE BETWEEN ABOUT 20* AND ABOUT 250*C.
References Cited (Backward Citations)
US2793200A
Cited
FR1159935A
Cited
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 |