US4241166A
Expired / Lapsed
US
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Photopolymerizable composition comprising a monoazo dye as contrast colorant
Assignee: Hoechst AG
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Filing: 1979-02-26
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Granted: 1980-12-23
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Expires: 1999-02-26
Abstract
Abstract The present invention relates to a photopolymerizable mixture comprising a compound with at least two terminal ethylenically-unsaturated groups, a boiling point above 100° C. and which is capable of addition polymerization, a polymeric binder, a photoinitiator, and a monoazo dye corresponding to Formula I: ##STR1## R 2 and R 3 are alkyl or alkenyl groups which may be substituted, and R 4 and R 5 are hydrogen or halogen atoms, or alkyl or alkoxy groups.
Inventors
- 👤 Kurt Klupfel
- 👤 Heide Sprengel
- 👤 Walter Deucker
- 👤 Hansjorg Vollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:42
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/09; G03F7/105; Y; Y10; Y10S; Y10S430/00; Y10S430/163
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
70 words
A photopolymerizable mixture comprising a compound with at least two terminal ethylenically-unsaturated groups, a boiling point above 100° C. and which is capable of addition polymerization, a polymeric binder, a photoinitiator, and a monoazo dye corresponding to Formula I: ##STR5## R 2 and R 3 are alkyl or alkenyl groups which may be substituted, and R 4 and R 5 are hydrogen or halogen atoms, or alkyl or alkoxy groups.
Claim 2
Dependent Claim
70 words
A photopolymerizable mixture comprising a compound with at least two terminal ethylenically-unsaturated groups, a boiling point above 100° C. and which is capable of addition polymerization, a polymeric binder, a photoinitiator, and a monoazo dye corresponding to Formula I: ##STR5## R 2 and R 3 are alkyl or alkenyl groups which may be substituted, and R 4 and R 5 are hydrogen or halogen atoms, or alkyl or alkoxy groups.
Claim 3
Dependent Claim
43 words
A photopolymerizable mixture according to claim 1 in which in the dye corresponding to Formula I: R 2 and R 3 are alkyl or alkenyl groups which are substituted by hydroxy, alkoxy, cyano, acyloxy, alkoxycarbonyl or alkylamino carbonyloxy groups, or by halogen atoms.
Claim 4
Dependent Claim
35 words
A photopolymerizable mixture according to claim 1 which contains between about 0.1 and 1.0 percent by weight of a compound corresponding to Formula I, calculated on the weight of the nonvolatile components of the mixture.
Claim 5
Dependent Claim
18 words
A photopolymerizable mixture according to claim 1 in the form of a solid photopolymerizable layer on a support.
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) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |