Coating compounds based on silanes containing epoxide groups

Details Coating compounds based on silanes containing epoxide groups Coating compounds based on silanes containing epoxide groups

C - Chemistry, Metallurgy

09

D

C09D 183/14 (2006.01) C09D 7/12 (2006.01) C09D 7/14 (2006.01)

Patent

CA 2302343

The present invention concerns a coating compound, comprising at least one silicon compound (A) with at least one radical which cannot be hydrolitically cleaved and which is directly bonded to Si, said radical containing an expoxide group; a material in particle form (B) selected from the oxides, oxide hydrates, nitrides and carbides of Si, Al and B, in addition to transition metals and a particle size ranging from 1 to 100 nm; a compound (C) of Si, Ti. Zr, B, Sn or V and at least one hydrolyzable compound (D) of Ti, Zr or Al, wherein said constituents are present in the following proportions: 1.0 mol silicon compound (A); 0.27-0.49 mol material in particle form (B); 0.36- 0.90 mol compound (C) and 0.14-0.22 mol compound (D).

L'objectif de la présente invention est une composition de recouvrement comprenant au moins un composé de silicium (A) qui présente un reste ne pouvant pas être éliminé hydrolytiquement, relié directement à Si et qui contient un groupe époxyde, un matériau (B), sous forme de particules, qui est sélectionné parmi les oxydes, les hydrates d'oxyde, les nitrures et les carbures de Si, d'Al et de B, ainsi que de métaux de transition et qui présente une taille de particule comprise dans la plage 1 à 100 nm, un composé (C) de Si, Ti, Zr, B, Sn ou V, et au moins un composé (D) hydrolisable de Ti, Zr ou Al. Ces différents composants sont présents dans les proportions suivantes: composé de silicium (A): 1,0 mol; matériau (B) sous forme de particules: 0,27-0,49 mol; composé (C): 0,36-0,90 mol; et composé (D): 0,14-0,22 mol.

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