Compositions useful in copper oxidation, and a method to prepare

Details Compositions useful in copper oxidation, and a method to prepare Compositions useful in copper oxidation, and a method to prepare

1988-04-25

1989-03-28

Silverberg, Sam

Metal treatment

Process of modifying or maintaining internal physical...

Processes of coating utilizing a reactive composition which...

148259, 148260, C23C 2200

Patent

active

048160865

ABSTRACT:
Tetra-substituted zirconate or titanate organophosphate or organopyrophosphate coupling agents are combined with an alkali metal phosphate salt and a chlorite salt in an aqueous solution useful for copper oxidation. The concentration of the alkali metal phosphate salt in the aqueous solution must be 2.5 times higher than the titanate or zirconate coupling agent. A process for the preparation of superior compositions is also described wherein the coupling agent can not be mixed in an aqueous solution with the chlorite salt unless the alkali metal phosphate salt is present in the solution also.

REFERENCES:
patent: 2457480 (1948-12-01), Lewis
patent: 2460898 (1949-02-01), Meyer
patent: 4623738 (1986-11-01), Sugerman

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