Patent ID: 6158491
Filing Date: 2000-12-12
Classification: C23F,H05K,Y10T

Abstract:
A process for the corrosion protection of copper or copper alloy which process comprises contacting the surface with an aqueous solution of at least one compound of the general formula: ##STR6## wherein X is N, Y is CR and Z is N, or X is N, Y is N and Z is N or CR, or X is CR, Y is N and Z is N, where R is a hydrogen atom or R.sup.1, and R.sup.1 is an alkyl, aryl, aralkyl, halogen, trihalomethyl, amino, heterocyclic, NHR.sup.2, NR.sup.3 R.sup.4, CN, CO.sub.2 H, CO.sub.2 R.sup.5, OH or OR.sup.6 group, where each of R.sup.2 to R.sup.6 independently represents an alkyl, aryl or aralkyl group.