C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 183/14 (2006.01) C09D 4/00 (2006.01) C09D 183/06 (2006.01)
Patent
CA 2301513
The present invention provides a coating composition which comprises at least one silicon compound (A) which has at least one radical which is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, a particulate material (B) which is selected from among oxides, oxide hydrates, nitrides and carbides of Si, Al and B and of transition metals and has a particle size within the range 1 to 100 nm, a Si, Ti, Zr, B, Sn or V compound (C) and at least one hydrolysable Ti, Zr or Al compound (D), which comprises the following ratio 1 mol of the silicon compound (A), 0.42 to 0.68 mol of the particulate material (B), 0.28 to 1.0 mol of the compound (C) and 0.23 to 0.68 mol of the compound (D).
L'invention concerne une composition de recouvrement comprenant au moins un composé silicium (A), présentant au moins un reste non séparable par voie hydrolytique, lié directement à Si, qui contient un groupe époxyde, un matériau particulaire (B), sélectionné dans le groupe comprenant les oxydes, les hydrates d'oxyde, les nitrures et les carbures de Si, Al et B, ainsi que de métaux de transition et présentant une dimension particulaire comprise entre 1 et 100 nm, un composé (C) de Si, Ti, Zr, B, Sn ou V et au moins un composé (D) hydrolysable de Ti, Zr ou Al, dans le rapport suivant: 1 mole du composé silicium (A), entre 0,42 et 0,68 mole du matériau particulaire (B), entre 028 et 1,0 mole du composé (C) et entre 0,23 et 0,68 mole du composé (D).
Bier Peter
Genz Joachim
Aktiengesellschaft Bayer
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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