US5079126A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photohardenable composition containing five member aromatic group with imine moiety
Assignee: Eastman Kodak Co
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Filing: 1990-08-27
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Granted: 1992-01-07
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Expires: 2010-08-27
Abstract
Abstract A photohardenable composition comprising an addition polymerizable or crosslinkable material, a photoinitiator composition capable of initiating polymerization or crosslinking of said polymerizable or crosslinkable material, and a compound of the formula ##STR1## wherein Q represents --C═O or --C--OH; X represents S or N which is unsubstituted or substituted with alkyl or aryl groups; R 1 represents H, alkyl, aryl, alkoxy, bezoyl, arloxy, acyl or monosubstituted amino groups; and R 2 represents H, alkyl or aryl groups is disclosed. The composition is preferably contained in microcapsules and is used in photosensitive imaging systems. The five member aromatic group containing the imine moiety functions to reduce the likelihood of short time scale reciprocity failure of the composition and enable imaging using high intensity radiation sources. An imaging method using the inventive composition is also disclosed.
Inventors
- 👤 Jesse Hipps, Sr.
- 👤 Claire M. Plageman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:00
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/027; G03F7/002; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/115
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
83 words
A photohardenable composition comprising an addition polymerizable or crosslinkable material, a photoinitiator composition capable of initiating polymerization or crosslinking of said polymerizable or crosslinkable material, said photoinitiator comprising an ionic dye-reactive counter ion compound, and a pyrazoline-5-one which in the 1 position is unsubstituted or substituted with alkyl or aryl groups, in the 3 position is unsubstituted or substituted with alkyl or aryl groups, and in the 4 position is unsubstituted or substituted by alkyl, aryl, alkoxy, aryloxy, acyl, or monosubstituted amino groups.
Claim 2
Dependent Claim
83 words
A photohardenable composition comprising an addition polymerizable or crosslinkable material, a photoinitiator composition capable of initiating polymerization or crosslinking of said polymerizable or crosslinkable material, said photoinitiator comprising an ionic dye-reactive counter ion compound, and a pyrazoline-5-one which in the 1 position is unsubstituted or substituted with alkyl or aryl groups, in the 3 position is unsubstituted or substituted with alkyl or aryl groups, and in the 4 position is unsubstituted or substituted by alkyl, aryl, alkoxy, aryloxy, acyl, or monosubstituted amino groups.
Claim 3
Dependent Claim
17 words
The composition according to claim 1 wherein said polymerizable or cross-linkable material comprises an ethylenically unsaturated monomer.
Claim 4
Dependent Claim
14 words
The composition according to claim 2 wherein photoiniiator comprises a cationic dye-borate anion complex.
Claim 5
Dependent Claim
14 words
The composition according to claim 3 wherein said cationic dye comprises a cyanine dye.
Claim 6
Dependent Claim
15 words
The composition according to claim 2 wherein said composition is microencapsulated with an image-forming agent.
Claim 7
Dependent Claim
20 words
The composition according to claim 5 wherein said microcapsules are coated onto the front or back surface of a substrate.
Claim 8
Dependent Claim
23 words
The composition of claim 1 wherein said pyrazolone is selected from the group consisting of 4-benzoyl-3-methyl-1-phenyl-2-pyrazoline-5-one, 3-methyl-1-phenyl-2-pyrazoline-5- one, picrolonic acid, 1-(2,4,6-trichlorophenyl)-3-(p-nitroanilino)-(p-nitroanilino)-2-pyrazoline-5-one, and 3-methyl-1-phenyl-2-pyrazoline-5-one.
Claim 9
Dependent Claim
10 words
The composition of claim 7 wherein said pyrazolone is 4-benzoyl-3-methyl-1-phenyl-2-pyrazoline-5-one.
Claim 10
Dependent Claim
13 words
The composition according to claim 1 wherein said composition additionally comprises a thiol.
Claim 11
Dependent Claim
38 words
A photohardenable composition comprising an addition polymerizable or crosslinkable material, a photoinitiator composition capable of initiating polymerization of crosslinking of said polymerizable or crosslinkable material, said photoinitiator comprising an ionic dye-reactive counter ion compound, and 1,5-dimethyl-2-phenyl-3-pyrazolone or 4-amino-antipyrine.
Claim 12
Dependent Claim
38 words
A photohardenable composition comprising an addition polymerizable or crosslinkable material, a photoinitiator composition capable of initiating polymerization of crosslinking of said polymerizable or crosslinkable material, said photoinitiator comprising an ionic dye-reactive counter ion compound, and 1,5-dimethyl-2-phenyl-3-pyrazolone or 4-amino-antipyrine.
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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) | 1995-01-06 | 1995-07-08 | 1996-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-06 | 1999-07-08 | 2000-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-06 | 2003-07-08 | 2004-01-07 | $7700.00 | Window Closed / Lapsed |