Zinc phosphate tungsten-containing coating compositions using ac

Details Zinc phosphate tungsten-containing coating compositions using ac Zinc phosphate tungsten-containing coating compositions using ac

1996-02-16

1997-08-05

Green, Anthony

Compositions: coating or plastic

Coating or plastic compositions

Corrosion inhibiting coating composition

106 1441, 106 1442, 106 1444, 148259, 148260, C23C 2207

Patent

active

056537905

ABSTRACT:
Zinc phosphate aqueous coating compositions containing tungsten and using an accelerator which is an oxime, hydroxylamine sulfate or a mixture thereof are disclosed. The accelerators are environmentally friendly and stable in the acidic environment of zinc phosphate coating compositions so as to enable formation of a one-package system. The tungsten component avoids the use of nickel or cobalt ions in the compositions which are environmentally objectionable.

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