Aqueous cleaning concentrates

Details Aqueous cleaning concentrates Aqueous cleaning concentrates

1993-10-13

1995-07-11

Pal, Asok

Compositions

Water-softening or purifying or scale-inhibiting agents

252 791, 252135, 252139, 25217414, C11D 310, C11D 337

Patent

active

054318475

ABSTRACT:
The present invention is directed to aqueous cleaning concentrates such as for cleaning electronic circuit assemblies comprising 15-30 wt. % of a composition containing alkaline salt, an alkali metal silicate to boost detersive action or to provide corrosion protection to the substrates which are cleaned, an anionic polymer comprising a high molecular weight polyacrylic acid which stabilizes the alkali metal silicate to prevent precipitation of the silicate from solution, surfactants, and a hydrotrope to maintain the surfactants in solution and the balance water.

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