Curable organopolysiloxane resin composition for optical...

C - Chemistry – Metallurgy – 08 – L

Patent

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C08L 83/04 (2006.01)

Patent

CA 2521736

The present invention relates to a hydrosilation-curable organopolysiloxane resin composition comprising (A) an organopolysiloxane resin having three or more monovalent unsaturated aliphatic hydrocarbon groups and aromatic hydrocarbon groups, (B) an organosilicon compound having two or more silicon- bonded hydrogen atoms and aromatic hydrocarbon groups, (C) a hydrosilation catalyst, and optionally (D) (d1) a solvent or (d2) a hydrosilation -reactive organosiloxane-based diluent, for optical transmission components, especially for optical transmission components serving as optical communication elements, relates to optical transmission components, represented by optical waveguides, comprisiong a hydrosilation-cured product of the aforementioned organopolysiloxane resin and organosilicon compound, and relates to a process for fabricatiing optical transmission components.

L'invention concerne une composition de résine organopolysiloxane durcissable par hydrosilation qui comprend (A) une résine organopolysiloxane ayant au moins trois groupes hydrocarbonés aliphatiques insaturés monovalents et groupes hydrocarbonés aromatiques, (B) un composé organosilicié ayant au moins deux atomes d'hydrogène liés au silicium et groupes hydrocarbonés aromatiques, (C) un catalyseur d'hydrosilation, et éventuellement (D) (d1) un solvant ou (d2) un diluant à base d'organosiloxane réactif à l'hydrosilation, destinés à des composants de transmission optique, notamment ceux utilisés comme éléments de communication optique ; l'invention concerne en outre des composants de transmission optique, représentés par des guides d'ondes optiques, comprenant un produit traité par hydrosilation de la résine organopolysiloxane susmentionnée et du composé organosilicié, ainsi qu'un procédé de fabrication de composants de transmission optique.

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