Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Liquid composition
Patent
1995-06-07
1997-08-05
Skane, Christine
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Liquid composition
510177, C11D 730, C11D 750, H05K 326
Patent
active
056542640
ABSTRACT:
The present invention includes compositions of octafluorobutane and a compound of the formula C.sub.a F.sub.b H.sub.2a+2-b, where a=3 or 4 and b=1 to 8 are disclosed. These compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, refrigerants, heat transfer media, gaseous dielectrics, fire extinguishing agents, power cycle working fluids, polymerization media, particulate removal fluids, carrier fluids, buffing abrasive agents or displacement drying agents.
REFERENCES:
patent: 4418185 (1983-11-01), Throckmorton et al.
patent: 5194170 (1993-03-01), Merchant et al.
patent: 5221493 (1993-06-01), Merchant et al.
patent: 5250208 (1993-10-01), Merchant et al.
William L. Kopko, "Beyond CFCs: Extending the Search for New Refrigerants, " Presented at the 1989 ASHRAE CFC Technology Conference, Gaithersburg, MD, 79-85, Sep. 27-28, 1989.
E. I. Du Pont de Nemours and Company
Skane Christine
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