Commissariat a L'energie Atomique

Compagnie Generale Des Matieres Nucleaires

Mpo International

Photonera France

Commissariat a L'energie Atomique Et Aux Energies Alternatives

Jacques Raby

Alexia Balland-Longeau

Marc Calonne

Elsa Anselmi

Christophe Kopp

Marc Plissonnier

Alain Fargeix

Jacqueline Bablet

David Descarsin

Marine Ruty

Cyrille Rossat

Raphael Robin

Christelle Vittoz

The recording medium comprises at least a first (L) and a second (L) micro-structured stage assembled by an adhesive layer () and arranged between micro-structured bottom () and top substrates. A polymerizable layer forming the adhesive layer () is deposited on the first stage (L). Then a micro-structured transparent matrix () is provisionally placed on the adhesive layer () so as to micro-structure the adhesive layer (). Polymerization of the adhesive () is performed by exposure, through the matrix (), with a polymerization light. Then the matrix () is removed and the second stage (L) is deposited on the micro-structured adhesive layer (). Then an additional adhesive layer () is deposited on the second stage (L) and the micro-structured matrix () is definitively placed on the additional adhesive layer () so as to form the top substrate.

Process for producing an optical recording medium with several stages and medium obtained thereby

The method of coating the area of hybridization of a component that is constituted by two elements bonded to one another by means of a soldering material, including depositing proximate to the component a coating substance capable of filling by capillarity action the volume defined between the hybridized elements of the component. Further, along the periphery of the hybridization area on the lower element of the component is an area of non-wettability in regards to the coating substance, that is defined by depositing an anti-wetting covering of PECVD in regards to the coating substance, whereby the anti-wetting covering on the first element encompasses the hybridization area and surrounds a wetting surface for the coating substance.

Method for coating two elements hybridized by means of a soldering material

The invention relates to the use of a composition comprising a chlorinated polyester resin in which the polyester satisfies formula (I) below: together with a crosslinking catalyst and a crosslinking accelerator in order to plug a crack affecting the wall of a metal device intended to contain a radioactive acid material. It is especially applicable in the maintenance of metal equipment of nuclear installations, in particular equipment that is for irradiated nuclear fuel reprocessing.

Plugging of cracks on metal devices intended to contain radioactive acid materials

The present invention relates to a deuterated polyimide, the backbone of which comprises an alternation between: in which: These polyimides are used in particular as materials which are transparent within the region from 2500 to 3500 cm, for example in laser devices.

[object Object]

Perdeuterated polyimides, their process of preparation and their use as materials which are transparent within the region from 2500 to 3500 cm-1

Growing community of inventors

Grenoble, France

Jacques Raby