Non-halogenated aqueous cleaning systems
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United States of America Patent
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Jun 22, 1993
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N/A
app pub date -
Aug 23, 1991
filing date -
Aug 23, 1991
priority date (Note) -
Expired
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Abstract
Non-halogenated aqueous degreasing compositions-useful for removing inks and cleaning printed circuit boards comprising a three-component mixture of (1) an organic acid consisting essentially of an alkanoic acid, preferably a hydroxy-substituted alkanoic acid, (2) a straight chain alkanol having at least four carbon atoms or an alkyl ester derived from an unsubstituted or substituted alkanoic acid and a straight chain alkanol having at least four carbon atoms and (3) water.
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