Patent ID: 6306571
Filing Date: 2001-10-23
Classification: C07C,G03C

Abstract:
A process for producing an aqueous dispersion containing particles of a substantially light insensitive silver salt A, said silver salt A being a salt of a carboxylic acid having a solubility of less than 10.sup.-3 g in 100 ml of water at 20.degree. C., said process consisting essentially of:(a) preparing an aqueous dispersion containing particles of a silver salt B, said silver salt B having a solubility of between 0.001 g and 1.5 g in 100 ml of water at 20.degree. C., wherein the media for said aqueous dispersion is selected from the group consisting of water and mixtures of water and water-miscible organic solvents; and(b) reacting said particles of said silver salt B in the aqueous dispersion formed in step (a) with a solution of a conversion agent, wherein said conversion agent is a water soluble salt of the carboxylic acid, thereby forming the aqueous dispersion of particles of said substantially light insensitive silver salt A.