Compositions – Humidostatic – water removive – bindive – or emissive
Patent
1986-04-28
1987-08-25
Terapane, John F.
Compositions
Humidostatic, water removive, bindive, or emissive
252DIG9, 252364, C09K 300
Patent
active
046891706
ABSTRACT:
A composition is disclosed comprising a low additive-water removal mixture consisting of a solution of about 0.15 to 0.01 weight percent phosphate ester free acid surfactant n an azeotropic composition of about 99.0 to 99.5 weight percent trichlorotrifluoroethane or trichloromonofluoromethane and about 1.0 to 0.5 weight percent t-amyl alcohol. A phosphate ester free acid surfactant that is commercially available and contains mixtures of both mono and diesters is incorporated. This mixture exhibits high solubility in the binary, azeotropic mixture and effectiveness even at low concentration. The concentration of said surfactant is about 100 ppm or 0.010 percent. The preferred binary system comprised of 99.25 to 99.50 weight percent of trichlorotrifluoroethane and 0.75 to 0.50 weight percent of t-amyl alcohol has a boiling point of about 47.2.degree. C. at barometric pressure of about 751.6 mm Hg.
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"Cool-Dry.TM." Product Information Article by Metal Coatings International (1985).
Figiel Francis J.
Zyhowski Gary J.
Allied Corporation
Friedenson Jay P.
Terapane John F.
Thexton Matthew A.
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