US2682518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures comprising acrylonitrile polymers with interpolymers of isopropenyl acetateand alkyl acrylates
Assignee: Eastman Kodak Co
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Filing: 1951-08-01
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Granted: 1954-06-29
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Expires: 1971-08-01
Abstract
No abstract record available.
Inventors
- 👤 John R Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:47
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
164 words
A RESINOUS COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A POLYACRYLONITRILE AND FROM 40 TO 10 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 20 TO 50 PER CENT BY WEIGHT OF ISOPROPENYL ACETATE AND FROM 80 TO 50 PER CENT BY WEIGHT OF AN ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 2 CARBON ATOMS, AND A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 75 TO 95 PER CENT BY WEIGHT OF ACRYLONITRILE AND FROM 25 TO 5 PER CENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOPROPENYL ACETATE AND METHALLYL ALCOHOL AND FROM 40 TO 10 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 20 TO 50 PER CENT BY WEIGHT OF ISOPROPENYL ACETATE AND FROM 80 TO 50 PER CENT BY WEIGHT OF AN ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 2 CARBON ATOMS.
Claim 2
Dependent Claim
164 words
A RESINOUS COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A POLYACRYLONITRILE AND FROM 40 TO 10 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 20 TO 50 PER CENT BY WEIGHT OF ISOPROPENYL ACETATE AND FROM 80 TO 50 PER CENT BY WEIGHT OF AN ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 2 CARBON ATOMS, AND A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 75 TO 95 PER CENT BY WEIGHT OF ACRYLONITRILE AND FROM 25 TO 5 PER CENT BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF ISOPROPENYL ACETATE AND METHALLYL ALCOHOL AND FROM 40 TO 10 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 20 TO 50 PER CENT BY WEIGHT OF ISOPROPENYL ACETATE AND FROM 80 TO 50 PER CENT BY WEIGHT OF AN ALKYL ACRYLATE WHEREIN THE ALKYL GROUP CONTAINS FROM 1 TO 2 CARBON ATOMS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |