Octafluorobutane compositions

C - Chemistry – Metallurgy – 09 – K

Patent

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C09K 5/04 (2006.01) A62D 1/00 (2006.01) C08J 9/14 (2006.01) C09K 3/30 (2006.01) C11D 7/50 (2006.01) C23G 5/028 (2006.01) C23G 5/032 (2006.01) C11D 7/26 (2006.01) C11D 7/28 (2006.01)

Patent

CA 2197551

The invention includes compositions of 1,2,2,3,3,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4-tetrafluorooxetane, 2,2,3,3- tetrafluorooxetane, 1-difluoromethoxy-1,1,2,2-tetrafluoroethane, 1- difluoromethoxy-1,2,2,2-tetrafluoroethane, 2,2,3,3,4,5,5- heptafluorotetrahydrofuran or 2,2,3,3,4,4,5-heptafluorotetrahydrofuran; 1,1,1,2,3,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4- tetrafluorooxetane, 2,2,3,3-tetrafluorooxetane, 1-difluoromethoxy-1,1,2,2- tetrafluoroethane, 1-difluoromethoxy-1,2,2,2-tetrafluoroethane, 2,2,3,3,4,5,5- heptafluorotetrahydrofuran, or 2,2,3,3,4,4,5-heptafluorotetrahydrofuran; 1,1,1,2,2,4,4,4-octafluorobutane and bis(fluoromethyl) ether, 2,2,4,4- tetrafluorooxetane or 2,2,3,3-tetrafluorooxetane; or 1,1,2,2,3,3,4,4- octafluorobutane and methyl tert-butyl ether, bis(fluoromethyl) ether or 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2,2-tetrafluoroethoxy)propane. These compositions, which may be azeotropic or azeotrope-like, may be used as refrigerants, cleaning agents, expansion agents for polyolefins and polyurethanes, aerosol propellants, 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.

L'invention concerne des compositions à base de 1,2,2,3,3,4,4,4-octafluorobutane et de bis(fluorométhyle) éther, 2,2,4,4-tétrafluorooxétane, 2,2,3,3-tétrafluorooxétane, 1-difluorométhoxy-1,1,2,2-tétrafluoroéthane, 1-difluorométhoxy-1,2,2,2-tétrafluoroéthane, 2,2,3,3,4,5,5-heptafluorotétrahydrofurane ou 2,2,3,3,4,4,5-heptafluorotétrahydrofurane; 1,1,1,2,3,4,4,4-octafluorobutane et bis(fluorométhyle) éther, 2,2,4,4-tétrafluorooxétane, 2,2,3,3-tétrafluorooxétane, 1-difluorométhoxy-1,1,2,2-tétrafluoroéthane, 1-difluorométhoxy-1,2,2,2-tétrafluoroéthane, 2,2,3,3,4,5,5-heptafluorotétrahydrofurane, ou 2,2,3,3,4,4,5-heptafluorotétrahydrofurane; 1,1,1,2,2,4,4,4-octafluorobutane et bis(fluorométhyle) éther, 2,2,4,4-tétrafluorooxétane ou 2,2,3,3-tétrafluorooxétane; ou 1,1,2,2,3,3,4,4-octafluorobutane et méthyle tert-butyléther, bis(fluorométhyle) éther ou 1,1,1,2,2,3,3-heptafluoro-3-(1,2,2,2-tétrafluoroéthoxy)propane. Ces compositions, qui peuvent être azéotropes ou semblables à des substances azéotropes, servent de réfrigérants, agents de nettoyage, agents de gonflage pour polyoléfines et polyuréthanes, propulseurs d'aérosols, milieux caloporteurs, gaz diélectriques, agents d'extinction d'incendies, fluides de travail de cycle hydraulique ou pneumatique, substances de polymérisation, fluides d'élimination de particules, fluides vecteurs, agents abrasifs de polissage ou agents de séchage par absorption.

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