US4152159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid-resistant copolymer and photographic element incorporating same
Assignee: Eastman Kodak Co
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Filing: 1978-04-03
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Granted: 1979-05-01
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Expires: 1998-04-03
Abstract
Abstract A photocrosslinkable polymer and imaging element containing said polymer are described wherein acid resistance is achieved by vinyl ester recurring units. A process for etching an element so prepared features exposure, development, and etching in an acid bath.
Inventors
- 👤 Robert C. Daly
- 👤 Ronald H. Engebrecht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
75 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 30 to about 97 mole percent of recurring units having the general structure ##STR17## and from about 3 to about 70 mole percent of recurring units having the general structure ##STR18## where n is 0 or 1, and a sensitizer in admixture with said polymer.
Claim 2
Dependent Claim
75 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 30 to about 97 mole percent of recurring units having the general structure ##STR17## and from about 3 to about 70 mole percent of recurring units having the general structure ##STR18## where n is 0 or 1, and a sensitizer in admixture with said polymer.
Claim 3
Dependent Claim
31 words
An element as defined in claim 1, wherein from about 3 to about 70 mole percent of said polymer comprises recurring units having the general structure ##STR19## where n=0 or 1.
Claim 4
Dependent Claim
31 words
An element as defined in claim 1, wherein from about 3 to about 70 mole percent of said polymer comprises recurring units having the general structure: ##STR20## where n=0 or 1.
Claim 5
Dependent Claim
17 words
An element as defined in claim 1, and further including a pigment in admixture with said polymer.
Claim 6
Dependent Claim
111 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 3 to about 70 mole percent of recurring units hving the general structure ##STR21## wherein n=1 or 0, and R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and from about 30 to about 97 mole percent of recurring units having the general structure ##STR22## wherein R 2 is hydrogen, alkyl containing from 1 to 5 carbon atoms, halogen, or nitro in the meta or ortho positions; and a sensitizer in admixture with said polymer.
Claim 7
Dependent Claim
111 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 3 to about 70 mole percent of recurring units hving the general structure ##STR21## wherein n=1 or 0, and R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and from about 30 to about 97 mole percent of recurring units having the general structure ##STR22## wherein R 2 is hydrogen, alkyl containing from 1 to 5 carbon atoms, halogen, or nitro in the meta or ortho positions; and a sensitizer in admixture with said polymer.
Claim 8
Dependent Claim
56 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising the repeating units ##STR23## wherein R 1 is hydrogen, or alkyl or alkoxy containing from 1 to 5 carbon atoms; and a sensitizer in admixture with said polymer.
Claim 9
Dependent Claim
56 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising the repeating units ##STR23## wherein R 1 is hydrogen, or alkyl or alkoxy containing from 1 to 5 carbon atoms; and a sensitizer in admixture with said polymer.
Claim 10
Dependent Claim
75 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 30 to about 97 mole percent of recurring units having the general structure ##STR24## and from about 3 to about 70 mole percent of recurring units having the general structure ##STR25## where n is 0 or 1, and a sensitizer in admixture with said polymer.
Claim 11
Dependent Claim
75 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 30 to about 97 mole percent of recurring units having the general structure ##STR24## and from about 3 to about 70 mole percent of recurring units having the general structure ##STR25## where n is 0 or 1, and a sensitizer in admixture with said polymer.
Claim 12
Dependent Claim
111 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 3 to about 70 mole percent of recurring units having the general structure ##STR26## wherein n=1 or 0, and R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and from about 30 to about 97 mole percent of recurring units having the general structure ##STR27## wherein R 2 is hydrogen, alkyl containing from 1 to 5 carbon atoms, halogen, or nitro in the meta or ortho positions; and a sensitizer in admixture with said polymer.
Claim 13
Dependent Claim
111 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising from about 3 to about 70 mole percent of recurring units having the general structure ##STR26## wherein n=1 or 0, and R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and from about 30 to about 97 mole percent of recurring units having the general structure ##STR27## wherein R 2 is hydrogen, alkyl containing from 1 to 5 carbon atoms, halogen, or nitro in the meta or ortho positions; and a sensitizer in admixture with said polymer.
Claim 14
Dependent Claim
56 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising the repeating units ##STR28## wherein R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and a sensitizer in admixture with said polymer.
Claim 15
Dependent Claim
56 words
A photographic element having a coating exhibiting superior acid etch resistance when photohardened, the element comprising a support, and coated on the support, a light-sensitive film-forming polymer comprising the repeating units ##STR28## wherein R 1 is hydrogen or alkyl or alkoxy containing from 1 to 5 carbon atoms; and a sensitizer in admixture with said polymer.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-30 | 1982-10-30 | 1983-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-30 | 1986-10-30 | 1987-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-30 | 1990-10-30 | 1991-05-01 | $7700.00 | Window Closed / Lapsed |