G03C7/327 - CPC Classification

Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes; Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials; Colour coupling substances Macromolecular coupling substances

• G03C7/3275 » {Polymers obtained by reactions involving only carbon-to-carbon unsaturated bonds, e.g. vinyl polymers} 2