Aqueous metal treating compositions and method of use

Details Aqueous metal treating compositions and method of use Aqueous metal treating compositions and method of use

1984-04-13

1985-04-30

Lieberman, Paul

Compositions

Fluent dielectric

N-containing

252533, 252538, 252552, 252143, 252151, 134 3, 134 40, C11D 128

Patent

active

045143250

ABSTRACT:
This invention relates to water based and water dilutable compositions containing about 5 to 20% by weight of water insoluble lipophilic organic solvents and a coupling agent comprising a compound having the formula ##STR1## where R--(CH.sub.2).sub.n is the residue of a sulfonated monounsaturated C.sub.12 to C.sub.18 fatty acid having the C--S attachment in one of the carbon atoms of the residue and M is an alkali metal, alkaline earth metal or amine, the weight ratio of solvent to coupling agent being from about 1:1 to 2:1. The composition is useful for metal cleaning, rust removing and phosphatizing.

REFERENCES:
patent: 2556108 (1951-06-01), Ruedrich
patent: 2867586 (1959-01-01), Weil et al.
patent: 2951808 (1960-09-01), Nelson

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