Cleaning and liquid contact with solids – Processes – Oils – grease – tar – or wax removal – by dissolving
Patent
1988-10-28
1991-01-08
Garvin, Patrick P.
Cleaning and liquid contact with solids
Processes
Oils, grease, tar, or wax removal, by dissolving
134 42, 252170, 252171, B08B 308, C23G 5024, C11D 318, C11D 320
Patent
active
049832247
ABSTRACT:
A method to remove solder flux residues from assembled or partially assembled electronic circuit boards employs a composition containing a nonpolar component consisting essentially of terpenes and/or terpenols, a polar component consisting essentially of a polar aprotic solvent or a mixture of polar aprotic solvents, and a surfactant. Use of this composition results in shorter cleaning times at lower temperatures with superior results.
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Barnier, Kester Solder Company, "Residues? Solvents? and Other Questions about Vapor Degreasing of PC Boards", Litton Systems, Chicago, Ill.
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Mombrun Suzette L.
Sedlak Rudolf P.
Fourson George R.
Garvin Patrick P.
RD Chemical Company
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