US2682519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures comprising acrylonitrile polymers with hydrolyzed interpolymers of vinyl acetate
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
2026-10-31 19:34
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A RESINOUS COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF POLYACRYLONITRILE AND FROM 40 TO 10 PARTS BY WEIGHT OF A HYDROLYZED INTERPOLYMER OF VINYL ACETATE CONTAINING FROM 25 TO 49% BY WEIGHT OF VINYL ALCOHOL AND FROM 75 TO 51% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, DIMETHYL MALEATE AND ISOPROPENYL ACETATE, AND A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 75 TO 95% BY WEIGHT OF ACRYLONITRILE AND FROM 25 TO 5% 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 HYDROLYZED INTERPOLYMER VINYL ACETATE CONTAINING FROM 25 TO 49% BY WEIGHT OF VINYL ALCOHOL AND 75 TO 51% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, DIMETHYL MALEATE AND ISOPROPENYL ACETATE.
Claim 2
Dependent Claim
159 words
A RESINOUS COMPOSITION SELECTED FROM THE GROUP CONSISTING OF A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF POLYACRYLONITRILE AND FROM 40 TO 10 PARTS BY WEIGHT OF A HYDROLYZED INTERPOLYMER OF VINYL ACETATE CONTAINING FROM 25 TO 49% BY WEIGHT OF VINYL ALCOHOL AND FROM 75 TO 51% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, DIMETHYL MALEATE AND ISOPROPENYL ACETATE, AND A MIXTURE COMPRISING FROM 60 TO 90 PARTS BY WEIGHT OF A COPOLYMER CONTAINING FROM 75 TO 95% BY WEIGHT OF ACRYLONITRILE AND FROM 25 TO 5% 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 HYDROLYZED INTERPOLYMER VINYL ACETATE CONTAINING FROM 25 TO 49% BY WEIGHT OF VINYL ALCOHOL AND 75 TO 51% BY WEIGHT OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHYL ACRYLATE, DIMETHYL MALEATE AND ISOPROPENYL ACETATE.
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) | 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 |