US3776737A
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Photosensitive element comprising light-sensitive polymers
Assignee: Eastman Kodak Co
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Filing: 1971-08-05
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Granted: 1973-12-04
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Expires: 1991-08-05
Abstract
Abstract A novel class of light-sensitive polymers contains recurring cyclohexadienedicarboxylate units as an integral part of, or appended to, a polymer backbone. The polymers, and photosensitive compositions and elements prepared therefrom, are utilized in the preparation of photomechanical images.
Inventors
- 👤 J Williams
- 👤 T Laakso
- 👤 D Borden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:47
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/42; C08G59/4215; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54; C08G63/553; C08G63/66; C08G63/668; C08G63/676; C08G63/68; C08G63/685; C08G63/6854; C08G63/6858; C08G65/00; C08G65/02; C08G65/32; C08G65/329; C08G65/331; C08G65/332; C08G65/3324; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/106; Y10S430/109
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
16 words
A photosensitive element according to claim 1 wherein said light-sensitive appending units have the structural formula:
Claim 2
Dependent Claim
16 words
A photosensitive element as defined in claim 1 wherein said polymer is derived from poly(vinyl alcohol).
Claim 3
Dependent Claim
24 words
A photosensitive element as defined in claim 1 wherein said polymer is a polyether derived from the condensation product of a bisphenol with epichlorohydrin.
Claim 4
Dependent Claim
22 words
A photosensitive element as defined by claim 1 in which said carboxylic acid includes a carboxylic acid containing a vinyl ketone group.
Claim 5
Dependent Claim
31 words
A photosensitive element as defined by claim 1 in which said carboxylic acid includes a modifying carboxylic acid selected from the group consisting of acetic acid, benzoic acid, and cinnamic acid.
Claim 6
Dependent Claim
24 words
A photosensitive element which comprises a support bearing a layer of a light-sensitive, linear, film forming polymer consisting essentially of poly(vinyl acetate-covinyl benzoate-co-vinyl 1-methoxycarbonyl-1,3-cyclohexadiene-4-carboxylate).
Claim 7
Dependent Claim
25 words
A photosensitive element which comprises a support bearing a layer of a light-sensitive, linear film forming polymer consisting essentially of poly(vinyl acetate-covinyl benzoate-co-vinyl cinnamate-co-vinyl 1-methoxycarbonyl-1,-3-cyclohexadiene-4-carboxylate).
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |