Radiation imagery chemistry: process – composition – or product th – Radiation sensitive product – Identified radiation sensitive composition with color...
Patent
1994-06-21
1995-12-05
Neville, Thomas R.
Radiation imagery chemistry: process, composition, or product th
Radiation sensitive product
Identified radiation sensitive composition with color...
430543, 430557, 430545, 3661561, 366 75, G03C 732
Patent
active
054728355
ABSTRACT:
The present invention is a process for continuous preparation of solutions of water-immiscible or water-insoluble organic compounds in substantially non-aqueous organic solvents. Particularly, a process for the continuous preparation of colour forming coupler solutions for use in the photographic industry is described. The process uses a twin screw extruder wherein the compound to be dissolved is introduced into a first section of the extruder. The compound passes along the extruder interior to a section where organic solvent is introduced to form the required solution.
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Bendle David R.
English David G. N.
Foster Jeremy S.
Eastman Kodak Company
Neville Thomas R.
Ruoff Carl F.
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