Radiation produced colored photopolymer systems

Details Radiation produced colored photopolymer systems Radiation produced colored photopolymer systems

1976-02-09

1977-07-05

Brammer, Jack P.

Gas separation: apparatus

Solid sorbent apparatus

With programmed, cyclic, or time responsive control means

20415915, 20415923, G03C 168

Patent

active

040337731

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.

REFERENCES:
patent: 3351467 (1971-11-01), Sprague et al.
patent: 3418118 (1968-12-01), Thommes et al.
patent: 3512975 (1970-05-01), Monder et al.
patent: 3527639 (1970-09-01), Moraw
patent: 3554752 (1971-01-01), Hachmann et al.
patent: 3600179 (1971-08-01), Yamada et al.
patent: 3620748 (1971-11-01), Fichter
patent: 3769023 (1973-10-01), Lewis et al.
patent: 3820993 (1974-06-01), Lewis et al.
patent: 3833373 (1974-09-01), Hazenbossh et al.

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