Corrosion preventive composition

Details Corrosion preventive composition Corrosion preventive composition

1989-01-27

1990-05-22

Dixon, Jr., William R.

Compositions

Electrolytes for electrical devices

252 493, 252 56R, 72 42, C10M13702, C10M12940

Patent

active

049275500

ABSTRACT:
The present invention is, in one form, an aqueous alkaline metalworking fluid composition in the form of a concentrate which includes a salt of orthophosphoric acid; a dibasicdioic acid in an amount of up to about 5.0% by weight of the concentrate; an essentially phosphonate-free chelating agent; and, a neutralizing base. The composition may also include a lubricating agent, a coupling agent, a passavating agent, a biocide, and a colorant.

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patent: 4759861 (1988-07-01), Ogura et al.

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