Xavier Marze: Polymeric compositions for membranes. Rhone Poulenc, Stevens Davis Miller & Mosher, June 10, 1980: US04207182 (36 worldwide citation)

A mixture of at least one non-sulphonated polysulphone and at least one sulphonated polysulphone, this mixture consisting of 10 to 30% by weight of a sulphonated polysulphone which has a theoretical exchange capacity of from 500 to 1,200 meq/kg is provided. Such mixtures enable one to obtain semi-pe ...

Gilbert Christen, Bernard Favre, Xavier Marze, Michel Salmon: Process for carring out a gas/liquid heat-exchange. Rhone Poulenc, Stevens Davis Miller & Mosher, July 4, 1978: US04098852 (34 worldwide citation)

A gas/liquid heat exchanger is provided which comprises means for circulating gas and/or liquid and a plurality of hollow fibres, adapted to receive said gas or said liquid, said fibres being of polymeric material which is inert with respect to said liquid and are permeable to said liquid. Such a he ...

Gilbert Christen, Bernard Favre, Xavier Marze, Michel Salmon, Rene Thuillier: Hollow fibres. Rhone Poulenc, Stevens Davis Miller & Mosher, November 1, 1977: US04056467 (29 worldwide citation)

A hollow fiber is provided possessing a continuous longitudinally extending channel free from macromolecular material, said fiber consisting essentially of a copolymer of acrylonitrile and an olefinically unsaturated comonomer containing an optionally salified sulphonic acid group, and possessing mi ...

Francois Audibert, Maurice Born, Daniel Defives, Xavier Marze: Process for regenerating used lubricating oils. Institut Francais du Petrole des Carburants et Lubrifiants et Entreprise de Recherches et d Activities Petrollieres Elf, Millen Raptes & White, November 9, 1976: US03990963 (22 worldwide citation)

Used lubricating oils are first heated to 200.degree.-500.degree. C, optionally with added steam, and then filtered through a membrane such as an ultra-filtration membrane. The latter has preferably a cut range of from 5,000 to 300,000.


Xavier Marze: Polyelectrolytes. Rhone Poulenc, Stevens Davis Miller & Mosher, October 3, 1978: US04118439 (13 worldwide citation)

Ionically crosslinked polymers which are soluble in a liquid organic medium and which correspond to the general formula: ##STR1## in which: the symbol N.sym. represents a quaternary nitrogen-containing group; the symbol ##STR2## REPRESENTS A MACROMOLECULAR CHAIN CARRYING GROUPS WHICH ARE CAPABLE OF ...

Xavier Marze, Michel Minfray: Polyether admixture and semi-permeable membranes comprised thereof. Rhone Poulenc, Burns Doane Swecker & Mathis, March 9, 1982: US04319008 (8 worldwide citation)

Semi-permeable, e.g., ultrafiltration membranes are shaped from a solvent solution of an admixture of at least one polyether comprising recurring units of the structural formula:

Xavier Marze: Semi-permeable membranes. Hospal, Gerald D Sharkin, Robert S Honor, Walter F Jewell, May 4, 1993: USRE034239

A semi-permeable membrane .[.which comprises.]. .Iadd.having high permeability characteristics is disclosed. This may comprise .Iaddend.either

Xavier Marze: Protection against termites. Bayer CropScience, Connolly Bove Lodge & Hutz, December 21, 2004: US06833137

The invention features a composite material comprising a gypsum partitional slab coated on at least one of its two surfaces with a cardboard or paper ply, the ply being impregnated with a 1-phenylpyrazole insecticide, preferably 5-amino-3-cyano-1-(2,6-dichloro-4-trifluoromethylphenyl)-4-trifluoromet ...