US3708305A
Expired / Lapsed
US
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Photopolymerizable compositions comprising cellulose derivative
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1971-06-08
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Granted: 1973-01-02
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Expires: 1991-06-08
Abstract
Abstract A PHOTOPOLYMERIZABLE COMPOSITION CONSISTING OF A PHOTOPOLYMERIZABLE UNSATURATED COMPOUND, A PHOTOSENSITIZER AND A CELLULOSE DERIVATIVE, SAID CELLULOSE DERIVATIVE BEING AN ESTER OF A POLYBASIC ACID OF A CELLULOSE ETHER REPRESENTED BY THE GENERAL FORMULA R1MR2NA WHEREIN R1 IS A HYDROXALKYL RADICAL HAVING 3 OR 4 CARBON ATOMS, R2 IS HYDROGEN OR AN ALKYL RADICAL HAVING 1 OR 2 CARBON ATOMS, M AND N ARE POSISTIVE INTEGERS AND A IS A CELLULOSE RESIDUE. SAID COMPOSITION IS SUITABLE FOR MAKING PRINTING PLATES, ETC.
Inventors
- 👤 S Koyanagi
- 👤 H Suzuki
- 👤 S Ono
- 👤 K Ogawa
- 👤 F Sekigawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:06
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/032; G03F7/0325; C; C08; C08F; C08F20/00; C08F20/62; C08F283/00; C08F283/01; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/112; Y10S430/114; Y10S430/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |