Cleaning compositions based on 1,1,1,2,2,4,4-heptafluorobutane and C.sub.1 -C.sub.3 alcohols
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United States of America Patent
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May 5, 1998
Grant Date -
N/A
app pub date -
Oct 30, 1996
filing date -
Oct 31, 1995
priority date (Note) -
Expired
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Abstract
To replace compositions based on CFC or CFHC in applications for cleaning solid surfaces (in particular defluxing), the invention proposes azeotropic or quasi-azeotropic compositions based on 1,1,1,2,2,4,4-heptafluorobutane and a C.sub.1 -C.sub.3 alcohol.
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