Patent ID: 8801844
Filing Date: 2014-08-12
Classification: C09D,C23C

Abstract:
1. An aqueous autocatalytic tin plating bath composition comprising a water-soluble source of Sn 2+ ions, a water-soluble source of Ti 3+ ions, at least one organic complexing agent and a stabilizing additive selected from the group consisting of compounds according to formula (1), formula (2) and mixtures thereof wherein R1, R2, R3, R4, R5, R6, R7 and R8 according to formula (1) and R9, R10, R11 and R12 according to formula (2) are independently selected from the group consisting of hydrogen, halogen, nitro, methyl, ethyl, 1-propyl, 2-propyl, phenyl, hydroxyl, sulfonate, phenyl sulfonate, amino, amido, and carboxylate, and R13 is selected from the group consisting of hydrogen and sulfonate.