US3764501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photopolymerizable polyamide compositions and process for the preparation thereof
Assignee: Toray Industries Inc
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Filing: 1970-07-30
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Granted: 1973-10-09
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Expires: 1990-07-30
Abstract
Abstract PHOTOPOLYMERIZABLE POLYAMIDE COMPOSITION ARE PROVIDED WHCIH ARE THE REACTION PRODUCTS OF A SOLUBLE POLYAMIDE POLYMER AND AN ACRYLAMIDE OF THE FORMULA CH2=C(-R)-CO-NH-CH2-OH WHEREIN R IS HYDROGEN OR METHYL. THE COMPOSITIONS OF THIS INVENTION ARE PREPARED BY A PROCESS WHEREIN AT LEAST A PORTION OF THE ACYLAMIDE OF THE ABOVE NOTED FORMULA IS REACTED ONTO THE POLYAMIDE TO PROVIDE CROSSLINKABLE SIDE CHAINS. THE PHOTOPOLYMERIZABLE POLYAMIDES OF THIS INVENTION CAN BE SELECTIVELY CONVERTED INTO AN INSOLUBLE POLYMER BY IRRADIATING THE POLYMER WITH LIGHT AND AS SUCH ARE USEFUL IN THE PREPARATION OF PHOTOGRAPHIC PRINTING PLATES AND THE LIKE.
Inventors
- 👤 T Hori
- 👤 H Kodama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:43
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/48; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0387
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |