Cleaning and passivating treatment for metals

Details Cleaning and passivating treatment for metals Cleaning and passivating treatment for metals

1996-11-04

1997-09-16

Tierney, Michael

Cleaning compositions for solid surfaces, auxiliary compositions

Cleaning compositions or processes of preparing

For cleaning a specific substrate or removing a specific...

510258, 510422, 510500, 252385, 2523894, 25238954, 252396, C11D 188

Patent

active

056680961

ABSTRACT:
A cleaning and passivating treatment for metals comprising an amphoteric surfactant which is a caprylic acid derivative of imidazoline compounds. The treatment is substantially free of amines, alkanolamines and phosphates. The preferred treatment includes small quantities of borate ions and molybdate ions. In addition a nonionic surfactant may be added as a foam control agent.

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