Patent US2561088A successfully refreshed from Google Patents.
Patent US3196040A successfully refreshed from Google Patents.
US3196040A
Expired / Lapsed
US
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Process for coating regenerated cellulose film and resulting product
Assignee: EIDP Inc
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Filing: 1961-11-02
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Granted: 1965-07-20
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Expires: 1981-11-02
Abstract
No abstract record available.
Inventors
- 👤 Kane William Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:06
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/052; C08J2301/00; C08J2301/06; C08J2423/00; C08J2425/00; C08L; C08L2666/00; C08L2666/28; C08L2666/36; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31587; Y10T428/31591; Y10T428/31594; Y10T428/31855; Y10T428/31859; Y10T428/3187; Y10T428/31873; Y10T428/31877; Y10T428/3188; Y10T428/31884; Y10T428/31888
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR COATING REGENERATED CELLULOSE FILM WHICH COMPRISES DISSOLVING 90-99% OF A POLYHYDROCARBON SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYSTYRENE AND A COPOLYMER OBTAINED FROM 50% STYRENE AND 50% ISOBUTYLENE AND 1-10% OF A HYDROCARBON HAVING A PLURALITY OF -N=C=X GROUPS ATTACHED THERETO WHEREIN X IS A CHALCOGEN OF ATOMIC WEIGHT LESS THAN 35, SAID -N=C=X GROUPS BEING CONNECTED BY A DIVALENT HYDROCARBON RADICAL, IN A VOLATILE ORGANIC SOLVENT TO FORM A SOLUTION; COATING AT LEAST ONE SURFACE OF SAID REGENERATED CELLULOSE FILM WITH SAID SOLUTION; AND DRIVING OFF THE SOLVENT FROM THE COATING TO PROVIDE A COATING HAVING SUBSTANTIALLY THE PROPERTIES OF SAID POLYHYDROCARBON.
Claim 2
Dependent Claim
108 words
A PROCESS FOR COATING REGENERATED CELLULOSE FILM WHICH COMPRISES DISSOLVING 90-99% OF A POLYHYDROCARBON SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE, POLYPROPYLENE, POLYSTYRENE AND A COPOLYMER OBTAINED FROM 50% STYRENE AND 50% ISOBUTYLENE AND 1-10% OF A HYDROCARBON HAVING A PLURALITY OF -N=C=X GROUPS ATTACHED THERETO WHEREIN X IS A CHALCOGEN OF ATOMIC WEIGHT LESS THAN 35, SAID -N=C=X GROUPS BEING CONNECTED BY A DIVALENT HYDROCARBON RADICAL, IN A VOLATILE ORGANIC SOLVENT TO FORM A SOLUTION; COATING AT LEAST ONE SURFACE OF SAID REGENERATED CELLULOSE FILM WITH SAID SOLUTION; AND DRIVING OFF THE SOLVENT FROM THE COATING TO PROVIDE A COATING HAVING SUBSTANTIALLY THE PROPERTIES OF SAID POLYHYDROCARBON.
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |