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US3101276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for grafting polymers to cellulose substrates
Assignee: EIDP Inc
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Filing: 1957-07-08
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Granted: 1963-08-20
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Expires: 1977-07-08
Abstract
No abstract record available.
Inventors
- 👤 Hendricks Robert William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:28
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/12; C08J7/16; C08J7/18; C08B; C08B15/00; C08B15/10; D; D06; D06M; D06M14/00; D06M14/18; D06M14/20; D06M14/22; D21; D21H; D21H17/00; D21H17/03; D21H17/05; D21H17/18; D21H17/19; C08J2301/00; Y; Y10; Y10S; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN THE PROCESS OF FORMING POLYMERS ON REGENERATED CELLULOSE FILM WHEREIN THE SURFACE OF CELLULOSE FILM IS SUBJECTED TO IONIZING RADIATION AND AN ETHYLENICALLY UNSATURATED MONOMER IS APPPLIED TO THE SURFACE OF THE FILM AND IS POLYMERIZED IN SITU AS A RESULT OF THE ACTION OF SAOD IONIZING RADIATION, THE IMPROVEMENT WHICH COMPRISES SWELLING THE REGENERATE CELLULOSE FILM BY INCORPORATING THEREIN AT LEAST 15% BY WEIGHT, BASED ON THE WEIGHT OF FILM, OF A WATER-SOLUBLE NON-POLYMERIZABLE SWELLING AGENT FOR CELLULOSE, AND THEREAFTER SUBJESTING THE SURFACE OF THE RESULTING SWOLLEN FILM TO SAID IONIZING RADIATION.
Claim 2
Dependent Claim
94 words
IN THE PROCESS OF FORMING POLYMERS ON REGENERATED CELLULOSE FILM WHEREIN THE SURFACE OF CELLULOSE FILM IS SUBJECTED TO IONIZING RADIATION AND AN ETHYLENICALLY UNSATURATED MONOMER IS APPPLIED TO THE SURFACE OF THE FILM AND IS POLYMERIZED IN SITU AS A RESULT OF THE ACTION OF SAOD IONIZING RADIATION, THE IMPROVEMENT WHICH COMPRISES SWELLING THE REGENERATE CELLULOSE FILM BY INCORPORATING THEREIN AT LEAST 15% BY WEIGHT, BASED ON THE WEIGHT OF FILM, OF A WATER-SOLUBLE NON-POLYMERIZABLE SWELLING AGENT FOR CELLULOSE, AND THEREAFTER SUBJESTING THE SURFACE OF THE RESULTING SWOLLEN FILM TO SAID IONIZING RADIATION.
References Cited (Backward Citations)
US210655A
Cited
US1943000A
Cited
US2100385A
Cited
US2291616A
Cited
US2352740A
Cited
US2334236A
Cited
US2424386A
Cited
US2512996A
Cited
US2715078A
Cited
US2712001A
Cited
US2764504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-08-19 | 1967-02-18 | 1967-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-19 | 1971-02-18 | 1971-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-19 | 1975-02-18 | 1975-08-20 | $7700.00 | Window Closed / Lapsed |