1,1,2,2,3,3,4,4-Octafluorobutane compositions

Details 1,1,2,2,3,3,4,4-Octafluorobutane compositions 1,1,2,2,3,3,4,4-Octafluorobutane compositions

1997-05-07

1998-06-30

Skane, Christine

Compositions

Vaporization, or expansion, refrigeration or heat or energy...

62114, 510408, 510411, C09K 504

Patent

active

057729115

ABSTRACT:
Compositions include compositions of 1,1,2,2,3,3,4,4-octafluorobutane and a hydrocarbon having from 3 to 7 carbon atoms. Specific examples include 1,1,2,2,3,3,4,4-octafluorobutane and butane, cyclopropane, isobutane, propane, cyclopentane, 2,2-dimethylbutane, n-pentane, 2-methylbutane, cyclohexane, 2,3-dimethylpentane, 3-ethylpentane, heptane, hexane or methylcyclopentane. Also included in this invention are compositions of 1,1,2,2,3,3,4,4-octafluorobutane and ethyl formate, propylene oxide, bis(pentafluoroethyl)sulfide, dimethoxyethane or tetrahydrofuran. 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: 4663361 (1987-05-01), Park
patent: 4789690 (1988-12-01), Milovanovic-Lerik et al.
patent: 5166182 (1992-11-01), Blanpied
patent: 5194170 (1993-03-01), Merchant et al.

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