Abstract: The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula ClHmFn  (1) wherein when l is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m+n=4; when l is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m+m=6; and when l is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m+n=8.

Abstract: The invention provides a refrigerant comprising a mixture of three compounds selected from the group consisting of hydrofluorocarbons represented by the formula ClHmFn  (1) wherein when l is 1, m is an integer of 1 or 2, n is an integer of 2 or 3 and m+n=4; when l is 2, m is an integer of 1 to 4, n is an integer of 2 to 5 and m+m=6; and when l is 3, m is an integer of 1 to 3, n is an integer of 5 to 7 and m+n=8.

Abstract: A cleaning solvent composition that is made by either blending aliphatic fluorohydrocarbon as expressed by the general formulaC.sub.n F.sub.m H.sub.2n+2-m(wherein, n and m are a positive integral numbers, being 4.ltoreq.n.ltoreq.6, 2n-3.ltoreq.m<2n+2 respectively) or blending a mixture of this aliphatic fluorohydrocarbon and alcohol having a carbon number of 1 to 4 with lactam and/or carboxylic acid amide, tertiary amines, or alcohol having ether linkage and/or amino linkage within its molecules. A cleaning process wherein an object is dipped into the said composition to remove dirty component, then rinsed with a mixture of the said aliphatic fluorohydrocarbon and the said alcohol having a carbon number of 1 to 4, and thereafter the object is steam cleaned with the said mixture when necessity arises.

Abstract: A blowing composition comprising (1) at least one member selected from the group consisting of difluoromethane, 1,1-difluoroethane and 1,1,1-trifluoroethane and (2) at least one member selected from the group consisting of propane, i-butane, n-butane, pentane, isopentane, cyclopentane and dimethylether; a method for producing a foam by using the composition; and a form according to the method.

Abstract: A primary object of the invention is to provide a method of producing rigid polyurethane foams using 1,1-dichloro-1-fluoroethane (HCFC-141b) as the blowing agent while substantially avoiding the formation of decomposition products from HCFC-141b. The above object can be achieved by a method of producing rigid polyurethane foams which comprises reacting a polyol with an organic polyisocyanate for foaming in the presence of HCFC-141b and a stabilizer therefor and in the presence of an organic metal catalyst and/or an imidazole compound catalyst and by the thus-produced rigid polyurethane foams.

Abstract: A solvent composition comprising a mixture of at least one polyfluoroalkane and at least one lower alcohol, wherein the polyfluoroalkane is selected among those represented by the general formula (1): (CF.sub.3).sub.2 CF--R wherein R represents a fluorinated ethyl group substituted by 1 to 4 fluorine atoms, and the lower alcohol is selected from the group consisting of methyl, ethyl, n-propyl and isopropyl alcohol.

Abstract: The invention provides a desiccant composition comprising an alcohol and a fluorinated aliphatic hydrocarbon compound of the general formulaC.sub.n F.sub.m H.sub.2n+2-mwherein m and n each is a positive integer satisfying the relations: 4.ltoreq.n.ltoreq.6 and 2n-2.ltoreq.m<2n+2, and a method of desiccating an article with said desiccant composition.

Abstract: The present invention provides blowing compositions for preparing foamed or expanded products of thermoplastics. Each of the blowing compositions comprises a combination of two of halogenated hydrocarbons.

Abstract: The invention provides a dehydrating agent comprising at least one of fluorine-containing alcohols; a dehydrating agent comprising at least one of fluorine-containing alcohols and water; and a method of dehydrating and drying an article having a surface moistened with residual water, the method comprising immersing the article in a dehydrating agent comprising at least one of fluorine-containing alcohols or comprising at least one of fluorine-containing alcohols and water, and drying the article after the immersion.

Abstract: The invention provides:a blowing composition for producing foamed articles of polyurethane comprising at least one of chloropentafluoropropane and isomer thereof,a blowing composition for producing foamed articles of polyurethane comprising (a) at least one of chloropentafluoropropane and isomers thereof and (b) 1,1-dichloro-1-fluoroethane anda blowing composition for producing foamed articles of polyurethane comprising (a) at least one of chloropentafluoropropane and isomers thereof and (c) at least one of dichlorotrifluoroethane and isomers thereof.

Abstract: The present invention provides an oil for a refrigerating machine using a hydrogen-containing halogenated hydrocarbon as a refrigerant, the oil comprising a fluorine-containing polyether having repeated units represented by the formula(--CF.sub.2 CF.sub.2 CF.sub.2 O).sub.l (CHFCF.sub.2 CF.sub.2)).sub.m (CH.sub.2 CF.sub.2 CF.sub.2 O).sub.

Abstract: Incombustible azeotropic like solvent compositions comprising 87 to 92 parts by weight of 1,1,2-trichloro-1,2,2-trifluoroethane and 8 to 13 parts by weight of hydrocarbons, said hydrocarbons have a boiling point of 49.degree. to 58.degree. C.

Abstract: Solvents or solvent compositions comprising HCFC-234. The solvents can be used, instead of CFC-113, as solvents, diluents, cleaning agents, drying agents or dispersing agents. The solvent compositions of HCFC-234 with an aliphatic alcohol having 1 to 4 carbon atoms or with cyclohexane can give azeotropic compositions.

Abstract: An azeotropic solvent composition which comprises an azeotropic mixture of 77% by weight of Flon-113 and 23% by weight of cyclopentane. The composition can decrease the amount of 1,1,2-trichloro-1,2,2-trifluoroethane excellent in power for dissolving fats and oil, grease, and particularly, waxes used for temporarily fixing silicon wafers, quartz, ceramics without erosion of materials made of plastics and rubbers, and it is easy to control the liquid composition and easy to recover and reuse the composition.

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: The present invention relates to a composition for cleaning a surface of a substrate, which contains as main components, (a) a halogenated hydrocarbon solvent, (b) a fluorine-containing alcohol and (c) an organic acid.

Abstract: A cleaning composition comprising (a) a halogenated and/or non-halogenated hydrocarbon, (b) a fluorinated alcohol, and optionally (c) a polar organic solvent other than the components (a) and (b), the composition being useful for removing waxes, which are used for temporarily fixing objects to be polished in the electronics or optical industry to a support, from the surfaces of the objects after the detachment from the support.

Abstract: A cleaning composition containing 1,1,2,2-tetrachloro-1,2-difluoroethane, 1,1,2-trichloro-1,2,2-trifluoroethane and at least one other organic solvent having a melting point of not more than 15.degree. C. and a boiling point of 40.degree. to 150.degree. C. and capable of forming an azeotrope with at least one of said 1,1,2,2-tetrachloro-1,2-difluoroethane and 1,1,2-trichloro-1,2,2-trifluoroethane.

Abstract: A volatile oil composition for use in metal working comprising a base oil and at least one halogenated hydrocarbon.

Abstract: A water removing composition suitable for use in treating solid surfaces which comprises (a) a halogenated hydrocarbon solvent, (b) at least one member selected from the group consisting of amines having an oxyalkylene group, their salts with an organic acid of the formula, R.sup.1 COOH, HOOCR.sup.2 COOH, R.sup.1 SO.sub.3 H, R.sup.1 OPO.sub.3 H or (R.sup.1 O).sub.2 PO.sub.2 H, wherein R.sup.1 is an alkyl group having 1 to 20 carbon atoms which may be substituted with a hydroxyl group or an alkylphenyl group having 7 to 26 carbon atoms and R.sup.2 is an alkylene group having 1 to 10 carbon atoms, and quaternary ammonium salts composed of an ammonium having an oxyalkylene group and an acid radical of the above-mentioned organic acids, and (c) at least one substituted amine salt with dialkyl sulfosuccinate of the formula ##STR1## wherein R.sup.1 is as defined above, and R.sup.3, R.sup.4 and R.sup.