Hybrid organic-inorganic material constituted by a silica network having photochromic agents and optical power limiting agents as a doping agent in the material
C08L 83/00 - Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Compositions of derivatives of such polymers
C03C 14/00 - Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
C03B 19/12 - Other methods of shaping glass by liquid-phase reaction processes
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
FOI SWEDISH DEFENCE RESEARCH AGENCY (Sweden)
Inventor
Chaput, Frédéric
Parola, Stéphane
Lopes, César
Chateau, Denis
Desroches, Cédric
Abstract
The invention concerns a preparation process of a hybrid organic-inorganic material including the following successive steps: a) preparation of a neutral organosilicon sol in at least one organic solvent, b) incorporation of a doping agent into the neutral organosilicon sol, and production of a doped sol, c) incorporation into the doped sol, of an accelerating agent in order to activate the subsequent gelation of the sol, d) condensation of the sol in order to obtain a crosslinked gel, e) drying of the gel and production of a stable doped gel, and the material obtainable by such a method.
C03C 1/00 - Ingredients generally applicable to manufacture of glasses, glazes or vitreous enamels
C03C 14/00 - Glass compositions containing a non-glass component, e.g. compositions containing fibres, filaments, whiskers, platelets, or the like, dispersed in a glass matrix
C03B 19/12 - Other methods of shaping glass by liquid-phase reaction processes
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