Cleaning and liquid contact with solids – Processes – Including application of electrical radiant or wave energy...
Patent
1993-02-17
1995-03-14
Dean, Richard O.
Cleaning and liquid contact with solids
Processes
Including application of electrical radiant or wave energy...
134 3, 134 26, 134 28, 134 41, 134 10, B08B 308, B08B 312
Patent
active
053973976
ABSTRACT:
The present invention relates to an aqueous composition and improved process useful for cleaning and facilitate drying of various metallic and non-metallic surfaces or components. According to the invention the water-immiscible hydrocarbon or non-halogenated organic solvent cleaning step is followed by an aqueous displacement solution (ADS) which contains a surfactant component and a pH modifier component in sufficient amounts to substantially displace the hydrophobic organic solvent residue from on the surface of the substrate and prevent its redeposition. The improved process is an alternative for replacing the ozone depleting chlorofluorocarbons and Halogenated solvents (ODS) or other volatile organic solvents (VOC) being commonly used in cleaning variety of industrially manufactured metallic and non-metallic components. The present invention provides an effective method for removal of various light and heavy surface contaminants such as, but not limited to, fluxes, oils, waxes, buffing and lapping compounds, finger prints, silicone oils, metal forming lubricants, polymers and mold release compounds.
REFERENCES:
patent: Re33210 (1990-08-01), Stoufer
patent: 3030238 (1962-04-01), Cohn
patent: 3630929 (1971-12-01), Dijk
patent: 4156619 (1979-05-01), Griesshammer
patent: 4704225 (1987-11-01), Stoufer
patent: 4787941 (1988-11-01), Laplaca
patent: 4859359 (1989-08-01), DeMatteo et al.
patent: 4877556 (1989-10-01), Wilsberg et al.
patent: 4983224 (1991-01-01), Mombrun et al.
patent: 5011620 (1991-04-01), Dishart et al.
patent: 5031648 (1991-07-01), Lutener et al.
patent: 5041235 (1991-08-01), Kilbarger
patent: 5112358 (1992-05-01), Deal, III
Bengtsson W. Patrick
Chaudhry Saeed T.
Crestek, Inc.
Dean Richard O.
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