Patent ID: 7393395
Filing Date: 2008-07-01
Classification: C07D,C23F,H05K

Abstract:
1. A surface-treating solution for a metal substrate, comprising a tetrazole derivative represented by formula 1 and/or a salt thereof in a concentration of between 0.05 g/l and 100 g/l wherein R 1 and R 2 each independently represent a hydrogen atom, a halogen atom, or an alkyl group, alkenyl group, alkinyl group, aryl group, aralkyl group or benzyl group, which each have a carbon number of not more than 10, and a group having added thereto a halogen atom, a hydroxyl group, a carboxyl group, an amino group or a mercapto group, or represent an amino group, a mercapto group, a hydroxyl group or a carboxyl group; and R 3 represents a bond or an alkylene group, alkenylene group, alkinylene group, arylene group or aralkylene group, which each have a carbon number of not more than 10, and a group having added thereto a halogen atom, a hydroxyl group, a carboxyl group, an amino group, a mercapto group, an azo group, a sulfide group, or a disulfide group, or represents an azo group (—N═N—), a sulfide group (—S—), or a disulfide group (—S—S—), and a solvent.