US3615467A
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Photolysable compounds and their uses in photographic processes
Assignee: Agfa Gevaert NV
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Filing: 1967-12-18
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Granted: 1971-10-26
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Expires: 1987-12-18
Abstract
Abstract Radiation-sensitive compositions and recording materials containing compositions which are light- and heat-sensitive and which include a photolysable compound having the formula: WHEREIN EACH OF X, Y, and Z is an acyl radical, cyano, nitro, azido, a carbamyl group, a sulphamyl group, or wherein X and Y are joined to form a nucleus containing two strong electronwithdrawing groups, either of them attached to the carbon atom having the Z substituent, and R is hydrogen, azido, an alkyl radical, an aryl radical, or a heterocyclic radical, AND A SUBSTANCE WHICH, UNDER THE INFLUENCE OF RADICALS FORMED DURING EXPOSURE TO LIGHT AND HEAT, UNDERGOES A CHEMICAL CHANGE ARE DESCRIBED. These compositions are useful in the production of a visible or developable latent image.
Inventors
- 👤 Albert Lucien Poot
- 👤 Robert Joseph Pollet
- 👤 Gerard Albert Delzenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:29
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; B; B41; B41M; B41M5/00; B41M5/26; B41M5/30; B41M5/323; C; C07; C07C; C07C205/00; C07C205/45; C07C255/00; C07C49/00; C07C49/76; C07C49/80; C07C49/813; G03C; G03C1/00; G03C1/675; G03C1/72; G03C1/73; G03F7/0045; G03F7/008; Y; Y10; Y10S; Y10S430/00; Y10S430/1053; Y10S430/1055; Y10S430/114; Y10S430/12; Y10S430/122; Y10S430/128
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
89 words
An electromagnetic radiation and heat-sensitive composition comprising a photolyzable compound having the formula: wherein each of X, Y, and Z is cyano, nitro, a -CO-R1, -SO2R1, or group, wherein R1 is an alkyl radical, an aryl radical, or a heterocyclic radical, and R is hydrogen, an alkyl radical, an aryl radical, or a heterocyclic radical, and a substance that under the influEnce of the radicals formed by exposure of said photolyzable compound to light and/or heat undergoes a change in its color; or a cross-linking, polymerization or hardening reaction.
Claim 2
Dependent Claim
35 words
An electromagnetic radiation and heat-sensitive composition according to claim 2 wherein the said composition is used as a recording material which includes a recording layer which contains the said photolyzable compound and a pH indicator.
Claim 3
Dependent Claim
17 words
An electromagnetic radiation and heat-sensitive composition according to claim 3 wherein the recording layer contains a base.
Claim 4
Dependent Claim
19 words
An electromagnetic radiation and heat-sensitive composition according to claim 3 wherein the recording layer contains a hydrophilic binding agent.
Claim 5
Dependent Claim
18 words
An electromagnetic radiation and heat-sensitive composition according to claim 3 wherein the recording layer contains a diazonium slat.
Claim 6
Dependent Claim
18 words
An electromagnetic radiation and heat-sensitive composition according to claim 2 containing said photolyzable compound and a vinyl monomer.
Claim 7
Dependent Claim
21 words
An electromagnetic radiation and heat-sensitive composition according to claim 2 containing a photolyzable compound corresponding to one of the following formulas:
Claim 8
Dependent Claim
92 words
A process for producing a resist image comprising imagewise exposing to ultraviolet radiation and/or to heat of a recording layer comprising a photolyzable compound having the formula: wherein each of X, Y and Z is cyano, nitro, a -CO-R1, -SO2R1, or group, wherein R1 is an alkyl radical, an aryl radical, or a heterocyclic radical, and R is hydrogen, an alkyl radical, an aryl radical, or a heterocyclic radical, and treating the exposed layer with an alkaline aqueous solution in order to remove the more alkali-soluble portions of the exposed recording layer.
Claim 9
Dependent Claim
39 words
A process for producing a resist image according to claim 9 wherein the recording layer is imagewise removed from an aluminum support whose uncovered areas after the removal of the more alkali-soluble portions of the recording layer are hydrophilized.
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |