US2933481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable hexafluoropropene-vinylidene fluoride composition
Assignee: EIDP Inc
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Filing: 1957-09-30
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Granted: 1960-04-19
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Rugg John Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:04
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/17
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A NON-SCORCHY, THERMALLY CURABLE ELASTOMERIC VINYLIDENE FLUORIDE-HEXAFLUOROPROPENE COPOLYMER CONSISTING OF FROM 30% TO 70% BY WEIGHT OF VINYLIDENE FLUORIDE UNITS AND 70% TO 30% BY WEIGHT OF HEXAFLUOROPROPENE UNITS, HAVING INTIMATELY INCORPORATED THEREIN AS THE CURING AGENT FROM 0.5 TO 2 PARTS, PER 100 PARTS OF COPOLYMER, OF A CYCLOALIPHATIC POLYAMINE OF THE GROUP CONSISTING OF DIAMINOCYCLOHEXANE AND BIS(4-AMINOCYCLOHEXYL)ALKANE IN WHICH THE ALKANE GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS.
Claim 2
Dependent Claim
71 words
A NON-SCORCHY, THERMALLY CURABLE ELASTOMERIC VINYLIDENE FLUORIDE-HEXAFLUOROPROPENE COPOLYMER CONSISTING OF FROM 30% TO 70% BY WEIGHT OF VINYLIDENE FLUORIDE UNITS AND 70% TO 30% BY WEIGHT OF HEXAFLUOROPROPENE UNITS, HAVING INTIMATELY INCORPORATED THEREIN AS THE CURING AGENT FROM 0.5 TO 2 PARTS, PER 100 PARTS OF COPOLYMER, OF A CYCLOALIPHATIC POLYAMINE OF THE GROUP CONSISTING OF DIAMINOCYCLOHEXANE AND BIS(4-AMINOCYCLOHEXYL)ALKANE IN WHICH THE ALKANE GROUP CONTAINS FROM 1 TO 3 CARBON ATOMS.
References Cited (Backward Citations)
US2451174A
Cited
US2793200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |