Abstract: A deicing coating composition characterized in that the composition comprises a synthetic resin coating composition of the organic solvent type, at least one fluorine-containing compound selected from the group consisting of urethane, phosphate, phosphonic acid derivative, phosphinic acid derivative, polyether, polyester and polyvinyl compounds having a perfluoroalkyl group with 6 to 20 carbon atoms, and when required, an alkali metal compound of the formulaMa.sym.X.crclbar.wherein M is an alkali metal, X is an inorganic acid radical, hydroxyl group or organic acid radical, and a is an integer of from 1 to 4.

Abstract: A perfluoroalkylvinyl copolymer comprising (a) repeating units of the formula:--CHRfCH.sub.2 -- (I)wherein Rf is a C.sub.5 -C.sub.21 perfluoroalkyl group, and (b) repeating units of the formula: ##STR1## wherein Y is --OR.sup.1, --OCOR.sup.1 or --COOR.sup.1 and Z is a hydrogen atom or --COOR.sup.2 in which R.sup.1 and R.sup.2 are, the same or different, a C.sub.1 -C.sub.18 alkyl group with the proviso that when Y is --OR.sup.1 or --OCOR.sup.1, Z is an hydrogen atom, and R is a C.sub.1 -C.sub.18 alkyl group, which is useful as a mold release agent, a water- and oil-repellent and a non-tackifier.

Abstract: A heat pump medium comprising 2,2,3,3,3-pentafluoropropanol either alone or in admixture with water.

Abstract: A non-electrification polymeric composite material composed of 60-95% by weight of a copolymer of perfluoro(alkyl vinyl ether) and tetrafluoroethylene (PFA), 1-10% by weight of electrically conductive carbon, and 5-20% by weight of carbonaceous fiber powder. The weight ratio of the electrically conductive carbon contained in the polymeric composite material to the carbonaceous fiber powder also contained in the material in from 1/9 to 7/4, preferably from 2/8 to 5/5. The polymeric composite material is especially suitable as a semiconductor holder, particularly for semiconductor wafers.

Abstract: An azeotropic like composition comprising 95 to 93% by weight of Flon-112 and 5 to 7% by weight of isooctane. The composition has a lower freezing point than that of Flon-112 while maintaining excellent properties of Flon-112. The composition is useful as various solvents and dispersing media such as a cleaning solvent, an extraction solvent, a dispersing medium.

Abstract: Working fluids for the Rankine cycle comprising dichlorotetrafluoroethane and a member selected from the group consisting of difluoroethane and dichlorofluoromethane.

Abstract: The invention provides fluorochlorohydrocarbon compositions containing as a stabilizer a boron compound or a boron compound and an ester of phosphorous acid. The compositions are for use as a heating medium, a foaming agent for the preparation of foamed products of plastics or the like.

Abstract: An aqueous etchant composition comprising hydrogen fluoride, ammonium fluoride and a surfactant selected from a group consisting of fluorine-containing carboxylic acids and their salts, with which very minute and complicated pattern can be etched onto an oxidized silicon film on a semiconductor substrate.

Abstract: Working fluids for the Rankine cycle comprising chlorodifluoromethane and one of difluoroethane and dichlorotetrafluoroethane.

Abstract: Working fluids for the Rankine cycle comprising trichlorofluoromethane and a member selected from the group consisting of difluoroethane, isobutane and octafluorocyclobutane.

Abstract: Working fluids for the Rankine cycle comprising dichlorotetrafluoroethane and a member selected from the group consisting of difluoroethane and dichlorofluoromethane.

Abstract: Compositions using for working fluids and heat-transfer media comprising 81 to 100 parts by weight of 2,2,3,3,3-pentafluoropropanol and 0 to 19 parts by weight of water.

Abstract: Working fluids for use with the Rankine cycle comprising 5 to 50% by weight of tetrafluoromethane, 40 to 95% by weight of trifluoromethane and 0 to 10% by weight of monochlorodifluoromethane.

Abstract: An absorption refrigerant composition for use in absorption refrigeration systems comprising 1,1,1,2-tetrafluoroethane and an organic solvent capable of dissolving the ethane.

Abstract: A refrigerant comprising a mixture of chlorodifluoromethane and diffluoromethane.

Abstract: A fluorine-containing betaine compound of the formula: ##STR1## wherein Rf is a polyfluoroalkyl group having 3 to 21 carbon atoms, A is a group of the formula: ##STR2## (wherein R.sup.4 is a hydrogen atom or an acyl group having 2 or 3 carbon atoms and p is an integer of 1 to 5), R.sup.1 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms or a group of the formula: Rf--A--, R.sup.2 and R.sup.3 are each a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, m is an integer of 2 to 6 and n is an integer of 1 to 4, which is useful as an additive to a foam fire-extinguishing composition for polar organic liquids.

Abstract: A Rankine cycle working fluid containing a mixture of 2,2,3,3-tetrafluoropropanol and water, which is low toxic, incombustible, nonexplosive, noncorrosive and stable, and also has a high critical temperature and forms azeotropic-like composition. It is suited for use in a Rankine cycle using heat source of low temperature.