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US5093221A
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Process of making colored images using aqueous processable photosensitive elements
Assignee: EIDP Inc
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Filing: 1991-08-05
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Granted: 1992-03-03
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Expires: 2011-08-05
Abstract
Abstract A photosensitive element adapted for the preparation of colored images is disclosed. The photosensitive element comprises: a photosolubilizable layer consisting essentially of an acid-labile polymer and a photosolubilizing agent; an elastomeric layer; and a support. It can be processed by aqueous solvents, preferably ordinary tap water.
Inventors
- 👤 Gwendyline Y. Y. T. Chen
- 👤 Floyd A. Raymond
- 👤 Jeffrey J. Patricia
- 👤 Walter R. Hertler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:28
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/039; G03F3/00; G03F3/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
275 words
A process for preparing a colored image comprising: (A) providing a multilayer photosensitive element comprising, in order: (1) a photosolubilizable layer consisting essentially of: (a) a photosolubilizing agent and (b) an acid-labile polymer having a polymer backbone and pendent acid-labile groups bound to the polymer backbone, said pendent acid-labile groups being represented by the formula: --CO.sub.2 --C(R.sup.1)(OR2)--CH(R.sup.3)(R.sup.4) where: R 1 is hydrogen or alkyl from about 1 to about 6 carbon atoms; R 2 is alkyl from 1 to about 8 carbon atoms; R 3 and R 4 are each independently hydrogen or alkyl from 1 to about 6 carbon atoms; wherein either R 1 and R 2 ; R 1 and R 3 ; or R 2 and R 3 may be joined to form a 5-, 6-, or 7-membered ring; (2) an elastomeric layer; and (3) a removable support; (B) forming a latent image in said photosensitive element by exposing said photosolubilizable layer to actinic radiation through an image-bearing transparency; (C) removing regions of said photosolubilizable layer decomposed in step B by washing with an aqueous solvent, thereby revealing regions of the elastomeric layer; (D) producing a colored image by applying colorant material to the surface of said photosensitive element, said colorant material selectively adhering only to revealed regions of the elastomeric layer; (E) providing a transfer element comprising a transfer sheet and an elastomeric layer; (F) laminating the surface of the photosensitive element bearing the colored image to the elastomeric layer of said transfer element; (G) removing said removable support of said photosensitive element to reveal the elastomeric layer; and (H) laminating the elastomeric layer of said photosensitive element to a receptor.
Claim 2
Dependent Claim
275 words
A process for preparing a colored image comprising: (A) providing a multilayer photosensitive element comprising, in order: (1) a photosolubilizable layer consisting essentially of: (a) a photosolubilizing agent and (b) an acid-labile polymer having a polymer backbone and pendent acid-labile groups bound to the polymer backbone, said pendent acid-labile groups being represented by the formula: --CO.sub.2 --C(R.sup.1)(OR2)--CH(R.sup.3)(R.sup.4) where: R 1 is hydrogen or alkyl from about 1 to about 6 carbon atoms; R 2 is alkyl from 1 to about 8 carbon atoms; R 3 and R 4 are each independently hydrogen or alkyl from 1 to about 6 carbon atoms; wherein either R 1 and R 2 ; R 1 and R 3 ; or R 2 and R 3 may be joined to form a 5-, 6-, or 7-membered ring; (2) an elastomeric layer; and (3) a removable support; (B) forming a latent image in said photosensitive element by exposing said photosolubilizable layer to actinic radiation through an image-bearing transparency; (C) removing regions of said photosolubilizable layer decomposed in step B by washing with an aqueous solvent, thereby revealing regions of the elastomeric layer; (D) producing a colored image by applying colorant material to the surface of said photosensitive element, said colorant material selectively adhering only to revealed regions of the elastomeric layer; (E) providing a transfer element comprising a transfer sheet and an elastomeric layer; (F) laminating the surface of the photosensitive element bearing the colored image to the elastomeric layer of said transfer element; (G) removing said removable support of said photosensitive element to reveal the elastomeric layer; and (H) laminating the elastomeric layer of said photosensitive element to a receptor.
Claim 3
Dependent Claim
33 words
The process of claim 1 including the steps, between steps D and E, of exposing said element overall to actinic radiation, and removing the remainder of said photosolubilizable layer with an aqueous solvent.
Claim 4
Dependent Claim
24 words
The process of claim 1 wherein said polymer comprises at least about 50 mol % of recurring units of at least one acid-labile monomer.
Claim 5
Dependent Claim
19 words
The process of claim 1 wherein said polymer consists essentially of recurring units of one or more acid-labile monomers.
Claim 6
Dependent Claim
21 words
The process of claim 1 wherein said polymer consists essentially of recurring units of one or more acrylate, and/or methacrylate monomers.
Claim 7
Dependent Claim
48 words
The process of claim 1 wherein the monomer is an acrylate monomer wherein said acid-labile group has the following substituents: R 1 and R 4 are hydrogen; R 2 is an alkyl group having 1 to 4 carbon atoms; and R 3 is hydrogen or CH 3 .
Claim 8
Dependent Claim
26 words
The process of claim 1 wherein said polymer selected from the group consisting of poly(tetrahydro-pyranyl acrylate), poly[1-(ethoxy)propyl methacrylate], and copolymers of tetrahydropyranyl methacrylate and tetrahydropyranyl acrylate.
Claim 9
Dependent Claim
11 words
The process of claim 1 wherein said aqueous solvent is water.
Claim 10
Dependent Claim
32 words
The process of claim 1 or 2 wherein steps A through D are repeated to produce at least two photosensitive elements bearing colored images, and the photosensitive elements are laminated in registry.
Claim 11
Dependent Claim
20 words
The process of claim 9 wherein four photosensitive elements are laminated in registry to produce a four color surprint proof.
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