US4423203A
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Electrically photosensitive polymers containing vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene groups
Assignee: Eastman Kodak Co
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Filing: 1982-08-20
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Granted: 1983-12-27
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Expires: 2002-08-20
Abstract
Abstract Disclosed are electrically photosensitive polymers in which recurring units contain vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene groups included in the polymer backbone. In one embodiment, the disclosed polymers are employed as the principal electrically photosensitive constituent in migration imaging dispersions and elements. In another embodiment, the polymers are employed as sensitizers for electrically photosensitive colorants having spectral absorption peaks in the 400-500 nm wavelength region of the spectrum. The polymers are employed in migration imaging dispersions and elements.
Inventors
- 👤 Peter J. Corvan
- 👤 Jeanne E. Kaeding
- 👤 Cesar Rodriguez
- 👤 Norman G. Rule
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:29
CPC Classifications
C; C08; C08G; C08G16/00; C08G16/02; C08G16/0212; C08G16/0218; C08G16/0231; C08G61/00; C08G61/12; G; G03; G03G; G03G17/00; G03G17/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
An electrically photosensitive polymer in which recurring units comprise a vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene group.
Claim 2
Dependent Claim
12 words
An electrically photosensitive polymer in which recurring units comprise a vinylene-1,4-phenylene-imino-1,4-phenylene-vinylenearylene group.
Claim 3
Dependent Claim
116 words
The electrically photosensitive polymer of claim 1 wherein said recurring units are represented by the structure: ##STR16## wherein: R is independently hydrogen, cyano, alkyl of 1-5 carbon atoms, alkoxy of 1-5 carbon atoms, halogen, aryloxy, of 6-10 carbon atoms, ##STR17## each of R 1 , R 2 and Y is independently alkyl of 1-5 carbon atoms or aryl of 6-10 carbon atoms; each of X and X 1 is independently hydrogen, cyano, alkyl of 1-5 carbon atoms, alkoxy of 1-5 carbon atoms, halogen or aryloxy of 6-10 carbon atoms; or X and X 1 , taken together, represent a covalent bond; Ar is arylene having 6-10 carbon atoms; and n is about 10 to about 30.
Claim 4
Dependent Claim
20 words
An electrically photosensitive polymer as in claim 2 wherein Y is a phenyl group and Ar is a phenylene group.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-26 | 1987-06-27 | 1987-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-26 | 1991-06-27 | 1991-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-26 | 1995-06-27 | 1995-12-27 | $7700.00 | Window Closed / Lapsed |