(EP687286-A1)      Refrigerant compsns. contg. hexafluoropropane and butane, cyclopropane, isobutane, propane or dimethyl ether are claimed..    Also claimed are mixts. forming azeotropic and azeotrope-like compsns. and compsns. having a vapour pressure higher than both the components.    USE/ADVANTAGE -   The compsns. are useful for heating and cooling (claimed); as cleaning agents, expansion agents, power cycle working fluids, gaseous dielectrics and fire extinguishing agents, polymerisation media, particulate removal fluids, carrier fluids, buffing abrasive agents and displacement drying agents; and as replacement for e.g. CFC-12 and HCFC-22. Partic. examples of use include cleaning electronic circuit boards, placing a thin film of lubricant onto metal parts, displacement of water from jewellery or metal parts, as resist developers in circuit mfg. and as strippers for photoresists. The compsns. are azeotropic or azeotrope-like and have zero ozone depletion potential.    (EP687286-B1)      A refrigerant composition comprising hexafluoropropane and butane, cyclopropane, isobutane, propane or dimethyl ether.    (JP8507522-W)      Refrigerant compsns. contg. hexafluoropropane and butane, cyclopropane, isobutane, propane or dimethyl ether are claimed..    Also claimed are mixts. forming azeotropic and azeotrope-like compsns. and compsns. having a vapour pressure higher than both the components.    USE/ADVANTAGE -   The compsns. are useful for heating and cooling (claimed); as cleaning agents, expansion agents, power cycle working fluids, gaseous dielectrics and fire extinguishing agents, polymerisation media, particulate removal fluids, carrier fluids, buffing abrasive agents and displacement drying agents; and as replacement for e.g. CFC-12 and HCFC-22. Partic. examples of use include cleaning electronic circuit boards, placing a thin film of lubricant onto metal parts, displacement of water from jewellery or metal parts, as resist developers in circuit mfg. and as strippers for photoresists. The compsns. are azeotropic or azeotrope-like and have zero ozone depletion potential.    (JP2714486-B2)      Refrigerant compsns. contg. hexafluoropropane and butane, cyclopropane, isobutane, propane or dimethyl ether are claimed..    Also claimed are mixts. forming azeotropic and azeotrope-like compsns. and compsns. having a vapour pressure higher than both the components.    USE/ADVANTAGE -   The compsns. are useful for heating and cooling (claimed); as cleaning agents, expansion agents, power cycle working fluids, gaseous dielectrics and fire extinguishing agents, polymerisation media, particulate removal fluids, carrier fluids, buffing abrasive agents and displacement drying agents; and as replacement for e.g. CFC-12 and HCFC-22. Partic. examples of use include cleaning electronic circuit boards, placing a thin film of lubricant onto metal parts, displacement of water from jewellery or metal parts, as resist developers in circuit mfg. and as strippers for photoresists. The compsns. are azeotropic or azeotrope-like and have zero ozone depletion potential.