Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1988-10-31
1989-10-10
Lieberman, Paul
Compositions
Water-softening or purifying or scale-inhibiting agents
252162, 252170, 252172, 252364, 252DIG9, 134 12, 134 38, 134 39, 134 40, C11D 750, C11D 730
Patent
active
048730157
ABSTRACT:
Azeotrope-like compositions comprising 1,1,2-trichloro-1,2,2-trifluoroethane, methanol, nitromethane and dimethoxymethane are stable and have utility as degreasing agents and as solvents in a variety of industrial cleaning applications including the defluxing of printed circuit boards.
REFERENCES:
patent: 2999816 (1961-09-01), Bennett et al.
patent: 3573213 (1971-03-01), Burt
patent: 3960746 (1976-06-01), Gorski
patent: 3960746 (1976-06-01), Gorski
patent: 4096083 (1978-06-01), Clementson
Basu Rajat S.
Lund Earl A. E.
Swan Ellen L.
Wilson David P.
Allied-Signal Inc.
Friedenson Jay P.
Lieberman Paul
Markowski Kathleen
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