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1. (WO1991017480) METHOD OF PREPARING COUPLER DISPERSIONS FOR PHOTOGRAPHIC USE
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1991/017480 International Application No.: PCT/US1991/002678
Publication Date: 14.11.1991 International Filing Date: 19.04.1991
Chapter 2 Demand Filed: 04.10.1991
IPC:
G03C 7/388 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
7
Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
30
Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
388
Processes for the incorporation in the emulsion of substances liberating photographically active agents or colour-coupling substances; Solvents therefor
Applicants:
EASTMAN KODAK COMPANY [US/US]; 343 State Street Rochester, NY 14650-2201, US
Inventors:
LOUGHEED, Edgar, P.; US
RICHENBERG, Carl, Beattie; US
CHEN, Stephn, Pokwok; US
Agent:
GERLACH, Robert, A.; 343 State Street Rochester, NY 4650-2201, US
Priority Data:
516,95530.04.1990US
Title (EN) METHOD OF PREPARING COUPLER DISPERSIONS FOR PHOTOGRAPHIC USE
(FR) PROCEDE DE PREPARATION DE DISPERSIONS DE COPULANT POUR L'UTILISATION EN PHOTOGRAPHIE
Abstract:
(EN) A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophilic membrane having a pore size less than 175 Angstroms.
(FR) Un procédé de préparation de dispersions de copulant dans de la gélatine consiste à séparer le solvant de copulant auxiliaire par l'intermédiaire d'une membrane hydrophile dont la porométrie est inférieure à 175 Angströms.
Designated States: JP
European Patent Office (AT, BE, CH, DE, DK, ES, FR, GB, GR, IT, LU, NL, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
EP0527796JPH05506943