Hydrofluorocarbon cleaning compositions
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United States of America Patent
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Jul 2, 1996
Issued Date -
N/A
app pub date -
Oct 13, 1993
filing date -
Oct 3, 1990
priority date (Note) -
Expired
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Abstract
Cleaning compositions comprising an acyclic aliphatic hydrofluorocarbon represented by the formula: C.sub.x H.sub.y F.sub.2x+2-y where x equals 4, 5 or 6, y equals 1, 2 or 3 with the proviso that when x equals 4, Y equals 2 or 3, and a co-solvent boiling between 20.degree. C.-105.degree. C. that are alcohols, esters, ethers, ketones, chlorinated hydrocarbons, optionally containing fluorine, having 1-4 carbons atoms, acetonitrile and nitromethane.
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