Elf Antar France

Ahlstrom Corporation

Ahlstrom Research & Services

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Ahlstrom Paper Group Research & Competence Center

Sibille Dalle

Pierre Girard

Joseph Dussaud

Bernard Michel Bossand

Francois-Pierre Navarre

Léonie Bouvier

Pascale Escaffre

L&eacute;onie Bouvier

Jean-Claude Roux

Jean-Claude Trillat

Christine Nguyen Dinh An

Jean Disdier

Pierre Mondjian

Sylvie Bourgeois

Fran&ccedil;oise Delpech

Alexis Steinbrunn

Estelle Mietton-Ceulemans

Pierre Pichat

Virginie Blondeau-Patissier

A photocatalytic composition includes at least a photocatalyst agent and at least an inorganic binding agent, characterized in that the inorganic binding agent includes an aqueous colloidal silica dioxide (SiO) dispersion, the aqueous colloidal silica dioxide dispersion including particles capable of being bound to one another after coating the photocatalyst agent.

Photocatalytic composition

Method for purifying gaseous effluents by means of photocatalysis, installation for carrying out said method

The subject-matter of the present invention is a filter paper for laden liquids, with a high adsorption and absorption capacity. This paper, based on cellulose fibers, is filled with organic and/or inorganic pulverulent matter. The powder filling is adapted in quantity and quality to the liquid to be filtered. It finds its application in petrochemical, agri-foodstuffs and papermaking industries.

Filter paper for laden liquids

The subject matter of the present invention is a device for purifying lightly laden water containing particles and/or fatty matter and/or microorganisms in suspension. The device of the invention is a filter comprising a grid (1) on which is placed a filter element (3) consisting of at least one sheet based on fibers and filled with organic and/or inorganic powders. The invention finds its application in all the industries which consume water and especially the crude oil processing industries and the chemical, papermaking and agri-foodstuffs industries.

Device for purifying lightly laden water

The present invention relates to a filled paper for gas filtration, with a high adsorption and absorption capacity. This paper, consisting of cellulose fibers, is filled with organic and/or inorganic powders adapted in quantity and in quality to the gas to be treated. It finds its application in the petroleum, chemical, agri-foodstuffs and papermaking industries, in apartment buildings and in office and hospital buildings.

Filled paper for gas filtration

A process for manufacturing a material from a greaseproof paper used as support. At least one face of the support is coated with water or at least one aqueous solution. The support thus becomes a pliable support, The surface of the pliable support is treated by depositing one or more pigmented layers on the surface. This treatment improves the qualities of metallization or of printing or of both of the paper, relative to uncoated greaseproof paper. The pliable support thus becomes a pliable coated support. The pliable coated support is then calendared.

Coated greaseproof paper and process for manufacturing it

Growing community of inventors

Saint Ismier, France

Pierre Girard