Photoimaging compositions containing substituted 1,2-dibromoetha

Details Photoimaging compositions containing substituted 1,2-dibromoetha Photoimaging compositions containing substituted 1,2-dibromoetha

1984-08-23

1987-01-06

Louie, Won H.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

430344, 430288, 430286, 430292, G03C 168, G03C 152

Patent

active

046346570

ABSTRACT:
Photoimaging compositions comprising (a) substituted dibromoethane as defined, e.g., 1,2-dibromotetrachloroethane, 1,2-dibromo-1,1-dichloroethane, etc. and (b) leuco dye. Photoimaging photopolymerizable compositions consist essentially of (a) substituted 1,2-dibromoethane as defined, (b) leuco dye, (c) at least one ethylenically unsaturated compound, (d) photoinitiator taken from the group consisting of -4-trichloromethyl-4-methyl-2,5-cyclohexadienones, benzophenones, alkylaryl ketones, and mixtures thereof; and optionally (e) at least one organic polymeric binder. The compositions are useful to provide a printout image and in admixture with a variety of initiators or initiator systems and ethylenically unsaturated compounds provide photopolymerizable compositions having good printout images.

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patent: 4465761 (1984-08-01), Takegawa et al.
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