Title: Radiation produced colored photopolymer systems

Abstract: A colored image in a polymer binder is obtained by polymerization of a mixture comprising (1) at least one polymerizable monomer, (2) a halogen containing activator (free radical source), (3) a binder, and (4) at least one normally bleachable dye, dissolved in such mixture; the polymerization being accomplished by imagewise exposure of said composition to a suitable dose of radiation, and is accompanied by fixing of the dye to the photopolymer. As a consequence, the dyes lose their bleaching characteristic and when the exposed areas are developed with a strong acid such as one which would normally bleach the dye, the dye is bleached from only the unexposed areas. If the developer also includes an aliphatic alcohol, the unexposed areas may be removed, leaving a relief image with color in the raised portions.

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Inventors: Lewis, James Marvin (Aurora, OH, US)
Newyear, Raymond Willis (Willoughby, OH, US)

Application Number: 656260
Filing Date: 1976-02-09
Publication_date: 1977-07-05
Assignee: Horizons Incorporated, a division of Horizons Research Incorporated (Cleveland, OH)
Primary Class(es): 430/282.1 430/915, 430/925, 430/926, 522/29, 522/30, 522/48, 522/116, 522/167
Other Classes:
US Patent Ref:

3351467	Nov, 1971	Sprague et al.	96/90.
3418118	Dec, 1968	Thommes et al.	96/35.
3512975	May, 1970	Monder et al.	96/48.
3527639	Sep, 1970	Moraw	96/90.
3554752	Jan, 1971	Hachmann et al.	96/48.
3600179	Aug, 1971	Yamada et al.	96/90.
3620748	Nov, 1971	Fichter	96/90.
3769023	Oct, 1973	Lewis et al.	96/115.
3820993	Jun, 1974	Lewis et al.	96/115.
3833373	Sep, 1974	Hazenbossh et al.	96/35.

Other Refs:
Primary Examiner: Brammer, Jack P.
Assistant Examiner:
Attorney: Field; Lawrence I.