Kali-chemie Aktiengesellschaft

Solvay Fluor Und Derivate Gmbh

Solvay (societe Anonyme)

Kalie-chemie Ag

Hans Buchwald

Boleslaus Raschkowski

Boleslaus Raszkowski

Joachim Hellmann

Andreas Brackmann

Mireille Paulus

Dieter Singer

Pierre Barthelemy

Werner Rudolph

Reinhold Doering

Heinz-Rudi Feist

Dominique Balthasart

Dominique Lecroc

Pierre Barth-Elemy

Boreslaus Raschkowski

Holger Koenig

Bruno D'Aubarede

Jean-Pierre Vogel

Christoph Von Eynatten

Refrigerant of 1,1-difluoroethylene

The present invention relates to new uses of difluoromethoxy-2,2,2-trifluoroethane (E245) or of compositions which contain difluoromethoxy-2,2,2-trifluoroethane together with a further solvent (cosolvent). The invention furthermore relates to new compositions of E245 as a mixture with some of these solvents. A preferred process of use is fixing toner applied to a recording material in the fixing device of a printing or copying apparatus by means of a fixing vapor composed of difluoromethoxy-2,2,2-trifluoroethane (E245) alone or in admixture with a cosolvent.

Difluoromethoxy-2, 2, 2-trifluoroethane compositions and methods of use

Difluoromethoxy-2,2,2-trifluoroethane compositions and methods of use

Liquid or pasty compositions having release-effective properties, which contain difluoromethoxy-2,2,2-trifluoroethane (E245), either alone or admixed with additional solvents, and at least one agent having release-effective properties, and also the use of these compositions and a method for their preparation.

Compositions comprising difluoromethoxy-2,2,2-trifluoroethane

Compositions which are liquefied under pressure, are suitable as release agents and comprise a fluorocarbon (FC) from the group comprising R134a, R143a, R125, R32, R143, R134, R23, R152a, R14 and R116 and an agent having a releasing action and, if appropriate, other additives, customary for release agents are described; the compositions with the hydrogen-containing fluorocarbons (HFC) mentioned are preferred here. The use of the compositions as release agents and a process for their preparation are likewise described.

Compositions comprising chlorine-free, optionally hydrogen-containing

Compositions containing trifluoromethane and 1,1,1,2-tetrafluoroethane which are useful as refrigerants in refrigerating machines and air-conditioning systems.

Refrigerant composition containing trifluoromethane and

Cleaning compositions containing selected hydrogen-containing fluorochlorohydrocarbons, selected surface-active agents, and optional amounts of water and/or ammonia.

Composition with hydrogen-containing fluorochlorohydrocarbons

Liquid compositions useful as release agents or cooling lubricants containing 1-chloro-2,2,2-trifluoroethyl difluoromethyl ether and an agent having a lubricant and/or release action and optionally further conventional additives for release agents or cooling lubricants, the use of such compositions as release agents or cooling lubricants, and a process for preparing such compositions.

Compositions containing 1-chloro-2,2,2-trifluoroethyl defluoromethyl

The invention relates to azeotropic and pseudoazeotropic compositions containing isoflurane with a lower alcohol or an ester. These compositions can be used in particular as a solvent for cleaning electronic components and for degreasing metals.

Virtually constant boiling point compositions based on isoflurane

Compositions suitable for use in cleaning processes formed of hydrogen-containing fluorochlorohydrocarbons selected from the group of consisting of tetrachloromonofluoroethanes, trichlorodifluoroethanes, dichlorotrifluoroethanes, dichloromonofluoroethanes and dichloropentafluoropropanes or a mixture one or more of these hydrogen-containing fluorochlorohydrocarbons in admixture with partially fluorinated alkanols containing two to four carbon atoms.

Cleaning compositions, formed of hydrogen-containing

A composition composed of 1-chloro-2,2,2-trifluoroethyl difluoromethyl ether and at least one surface-active substance and the use of such a composition for removing water from surfaces of objects of diverse material and type are described.

1-chloro-2,2,2-trifluoroethyl difluoromethyl ether compositions for

Fluorochlorohydrocarbon-free cleaning compositions composed of from 80 to 99.5 percent by weight of an alcohol or partially fluorinated alcohol having 2 to 4 carbon atoms and 0.5 to 10 percent by weight of at least one surface-active agent selected from ammonium salts of alkyl benzene sulfonates and mixtures of fatty acid alkanolamides and alkyl phenol polyglycol ethers, and 0 to 10 percent by weight of deionized water.

Fluorochlorohydrocarbon-free cleaning compositions

Improved cleaning compositions are disclosed based on fluorochlorohydrocarbons, alkanols and at least one ester selected from the group consisting of methyl propionate, ethyl propionate and ethyl acetate. The compositions may optionally contain additional additives and are highly suitable for industrial cleaning processes or for vapor degreasing, for example, particularly for removing resin soldering fluxes containing high amounts of activator.

Cleaning compositions (containing fluorochlorocarbon, C.sub.1 to C.sub.4

Cleaning compositions formed of hydrogen-containing

Azeotropic and azeotrope-like compositions composed of dichloropentafluoropropanes and acetone are described which are suitable for use in cleaning processes and in printing and copying processes for fixing toner based on polystyrene.

Growing community of inventors

Ronnenberg, Germany

Hans Buchwald