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US 5,705,463 AGranted
Composition and process for removal of ionic salt deposits
AssigneeTech Spray, Inc.
InventorGreg Roland Unruh
Life of this patent
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Abstract
A composition and method for the removal of ionic salt deposits from a surface using an organic solvent of low polarity and a complexing agent. The complexing agent is chosen from a group which includes podands, cryptands, and coronands. The method provides nearly complete removal of ionic salt deposits with a single washing of the surface with the low polar cleaning mixture.
Claims6
A composition for removing ionic salt deposits from a surface which comprises:
- (a) an organic solvent selected from a group consisting of alkyl halides, paraffinic monohydric alcohols, non-halogenated paraffins, aromatics and mixtures thereof;
- (b) a complexing agent in a concentration of between about 0.001 weight percent and about 0.1 weight percent of the composition, wherein the complexing agent is a crown ether consisting of a monocyclic oligoether ligand exclusively containing oxygen as donor atoms and having non coordinated donor atoms so that the complexing agent can solvate ionic residue comprising a salt of an alkali metal or an alkaline earth metal by forming a guest/host relationship with the ionic residue;
- and
- (c) a stabilizing amount of a nitroparaffin in said solvent.
1 more element
Dependencies are inferred from the claim text.