Solvay (societe Anonyme)

Solvay Sa

Solvay

Dominique Grandjean

Claude Dehennau

Philippe-Jacques Leng

Henri Wautier

Danny Van Hoyweghen

Zdenek Hruska

Frederic Beullekens

Jean-Marie Blondel

Paul Henrard

Phillipe-Jacques Leng

Process for manufacturing composite sheets based on PVC and a network of long fibers, said process comprising the following steps:

Method for producing a PVC-based composite plate and structure including one such plate

A process for manufacturing a plastic-based cellular structure, in which parallel lamellae are continuously extruded through a die having a plurality of parallel slots and upon exiting the die spaces lying between two adjacent lamellae are subjected, in successive alternations and between two sizing units whose length is short enough for the plastic composition to remain molten, to an injection of compressed gas and to a vacuum, the two sides of a given lamella being, in respect of one of them, subjected to the action of the compressed gas and, in respect of the other of them, subjected to the action of the vacuum, and vice versa during the next alternation, so as to deform the lamellae and weld them together in pairs, with formation, in a plane approximately parallel to the extrusion direction, of a cellular structure whose constituent cells extend perpendicular to the extrusion direction.

Process for manufacturing a plastic-based cellular structure and device for implementing this process

Process for manufacturing a plastic-based cellular structure comprising:

Process for manufacturing a plastic-based cellular structure

Plane structure composed of a cohesive assembly of contiguous cellular cells having any cross section and essentially parallel walls from one cell to another, characterized in that the walls of the cells comprise at least two portions based on different polymeric compositions, the junction between said portions being substantially parallel to the plane of the structure.

Plane structure composed of a cohesive assembly of contiguous cellular cells

Cartridge for the treatment of a gas by reaction with a reactive substance, comprising a cohesive assembly of alveolate cells that are at least partly filled with the reactive substance, the alveolate cells possessing one part of their wall which is permeable to the gas and impermeable to the reactive substance, said wall part being intended to be in contact with the gas.

Cartridge for treating a gas

Flexible composition based on vinyl chloride polymer, use of said

The film is obtained directly by extrusion from the lactic acid-based polymer plasticised beforehand by incorporation of 5 to 30% by weight of the polymer of a glycerol ester obtained from an acid containing 4 carbon atoms in its molecule. The film has an elongation at break of more than 300% and is particularly suitable for the production of medical dressings.

Growing community of inventors

Brussels, Belgium

Dominique Grandjean