Solvay (societe Anonyme)

Solvay Sa

Solvay Fluor Und Derivate Gmbh

Solvay

Pierre Barthelemy

Mireille Paulus

Pierre Dournel

Annie Leroy

Robert Putteman

Hans Buchwald

Joachim Hellmann

Dominique Balthasart

Boleslaus Raszkowski

Francine Janssens

Pascal Pennetreau

Lothar Zipfel

Olivier Buyle

Paul Dantinne

Thomas Benecke

Reinhold Doering

Dominique Lecroc

Holger Koenig

Bruno D'Aubarede

Jean-Pierre Vogel

Compositions comprising 1,1,1,3,3-pentafluorobutane and more than 5% by weight of at least one non-flammable fluoro compound, and use thereof.

Compositions comprising 1,1,1,3,3-pentafluorobutane and use of these compositions

Perfluorobutyl methyl ether forms azeotropic or pseudoazeotropic compositions with esters. These compositions can be used in particular as solvent for cleaning and defluxing electronic components, for degreasing metals, for removing water adsorbed at the surface of solids and for fixing a toner to a printing substrate.

Compositions comprising perfluorobutyl methyl ether and use of said compositions

Compositions comprising 1,1,1,3,3-pentafluorobutane and more than 5% by weight of at least one non-flammable fluoro compound, and use thereof. No figures.

1,1,1,3,3-Pentafluorobutane forms azeotropic or pseudoazeotropic compositions with alkanes possessing 5 or 6 carbon atoms. These compositions can be used in particular as blowing agents in polymeric cellular foams.

Azeotropic or pseudo-azeotropic composition and use of these compositions

Compositions including 1,1,1,3,3-pentafluorobutane and at least one surface-active agent chosen from hydrophobic organic surface-active agents of the amine, carboxylic acid diester and phosphoric acid ester types, which can be employed for removing water from a solid surface.

Compositions including 1,1,1,3,3-pentafluorobutane and process for removing water from a solid surface

Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF.sub.3 --CR.sup.1 R.sup.2 --CF.sub.2 --R.sup.3, where R.sup.1 and R.sup.2 represent, independently, a hydrogen atom or an optionally fluorinated C.sub.1 -C.sub.3 alkyl group and where R.sup.3 represents a hydrogen atom or a methyl group, and at least one stabilizer chosen from nitroalkanee, diketones, alkaline-earth metal salts and brominated compounds.

Premixes for the preparation of polyurethane or polyisocyanurate foams

Refrigerant of 1,1-difluoroethylene

Hydrofluorocarbon-containing compositions and method for removing water

Premixes intended for the preparation of polyurethane or polyisocyanurate foams comprising at least one polyol, at least one hydrofluoroalkane corresponding to the general formula CF.sub.3 --CR.sup.1 R.sup.2 --CF.sub.2 --R.sup.3, where R.sup.1 and R.sup.2 represent, independently, a hydrogen atom or an optionally fluorinated C.sub.1 -C.sub.3 alkyl group and where R.sup.3 represents a hydrogen atom or a methyl group, and at least one stabilizer chosen from nitroalkanes, diketones, alkaline-earth metal salts and brominated compounds.

Premixes intended for the preparation of polyurethane or modified polyurethane foams comprising at least one polyol and 1,1,1,3,3-pentafluorobutane as blowing agent. These premixes have proved to be particularly stable.

Premixes for the preparation of polyurethane foams

In order to fix a toner to a recording substrate in a document printer or copier, the recording substrate on which the toner is deposited is brought into contact with a chemical fixing agent in the gaseous state containing a C.sub.3 -C.sub.6 hydrofluorocarbon and, preferably, a cosolvent.

Method for fixing a toner in a copier and compositions used in this

Process for the stabilization of compositions containing hydrofluoroalkanes by addition of at least one salt of at least one metal chosen from lithium and/or the alkaline-earth metals in a sufficient quantity to stabilize the hydrofluoroalkanes and stabilized compositions containing hydrofluoroalkanes.

Growing community of inventors

Pietrebais, Belgium

Pierre Barthelemy