Patent ID: 7384597
Filing Date: 2008-06-10
Classification: G03C

Abstract:
1. A method of manufacturing an organic silver salt composition comprising silver salts of at least two organic acids differing in melting point, the method comprising: (i) preparing a solution of an organic acid A and allowing the acid A to react with an alkali to form an alkali metal salt of the organic acid A, (ii) preparing a solution of an organic acid B and allowing the acid B to react with an alkali to form an alkali metal salt of the organic acid B, and (iii) allowing each of the alkali metal salt of the organic acid A and the alkali metal salt of the organic acid B to react with a silver salt to form a silver salt of organic acid A and a silver salt of organic acid B, which are mixed to form an organic silver salt composition, wherein in (i) and (ii), the organic acid A has a lower melting point than the organic acid B and a molar ratio of the organic acid A to the organic acid B is in the range of 10:90 to 80:20; and the alkali metal salt of the organic acid A and the alkali metal salt of the organic acid B formed in (i) and (ii) each still contain an unreacted acid A and an unreacted acid B and a molar ratio of the unreacted acid A to the unreacted acid B is in the range of from 0:100 to 30:70, and steps (i) and (ii) are independently performed.