Process of simultaneously applying multiple layers of hydrophili

Details Process of simultaneously applying multiple layers of hydrophili Process of simultaneously applying multiple layers of hydrophili

1990-01-29

1993-02-23

Brammer, Jack P.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

Identified backing or protective layer containing

430935, 427402, 427420, 427414, B05D 130, G03C 176

Patent

active

051889315

ABSTRACT:
A process of simultaneously applying multiple layers of hydrophilic colloidal aqueous coating compositions to a moving support with a multilayer bead coating apparatus, which comprises applying as the first layer next to the support an hydrophilic colloidal aqueous composition comprising a high molecular weight, highly deionized gelatin in which there are dispersed fine droplets of a high temperature boiling water immiscible organic solvent, and a multilayer silver halide photographic material comprising a support on which there are spread at least one silver halide photosensitive layer and at least one auxiliary layer, and said material further comprising, spread over said support under said layers, a hydrophilic colloidal layer comprising high molecular weight, highly deionized gelatin in which there are dispersed fine droplets of a high temperature boiling water immiscible organic solvent.

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patent: 4572849 (1986-02-01), Koepke et al.
patent: 4840881 (1989-05-01), Watanabe et al.
H. Ammann-Brass and J. Pouradier `Photographic Gelatin, Proc. of 5th IAG Conference held at Fribourg, Sep. 1988 part 1. pp. 66-81 "Active or Inert Gelatin-An Overview" by P. Koepff` 1989, Fribourt 1989 *p. 79*.
Patent Abstracts of Japan vol. 4, No. 93 (C-017)5 Jul. 5, 1980 & JP-A-55 056 867 (Oriental Shashin Kogyo I.K.) Apr. 26, 1980 *Abstract*.

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