Coating composition

C - Chemistry – Metallurgy – 09 – D

Patent

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C09D 133/06 (2006.01) C08G 18/42 (2006.01) C08G 18/71 (2006.01) C09D 143/04 (2006.01) C09D 175/04 (2006.01) C08L 83/06 (2006.01)

Patent

CA 2509837

A coating composition comprising a reaction product of the following components: (a) at least one cyclic ether or anhydride; and (b) an alkoxysilane-functional polyacrylate, alkyd, polyester, epoxy, or a multifunctional polyol; and (c) at least one metal ester having the general formula Rm-M(OR~)n, in which M is Si, Al, Zr, or Ti, Mg, B, W. or Mo R is a hydrocarbon group of less than 10 carbon atoms or a group comprising hydrogen, carbon and oxygen of less than 20 carbon atoms, R~ is an alkyl or aryl group with less than 10 carbon atoms, m has values of 0, 1, 2 an 3 and correspondingly n is 4, 3, 2, or 1; and (d) at least one organofunctional alkoxysilane.

L'invention concerne une composition de revêtement comprenant un produit résultant de la réaction des composants suivants : (a) au moins un éther cyclique ou un anhydride ; et (b) un polyacrylate à fonction alcoxysilane, un alkyde, polyester, époxy, ou un polyol multifonctionnel ; et (c) au moins un ester métallique de formule générale Rm-M(OR')n, dans laquelle M désigne Si, Al, Zr, ou Ti, Mg, B, W, ou Mo, R désigne un groupe hydrocarbure de moins de 10 atomes de carbone, ou un groupe comprenant de l'hydrogène, du carbone et de l'oxygène, de moins de 20 atomes de carbone, R' désigne un groupe alkyle ou aryle à moins de 10 atomes de carbone, m a des valeurs égales à 0, 1, 2 et 3 et, de façon correspondante, n est égal à 4, 3, 2 ou 1 ; et (d) au moins un alcoxysilane organofonctionnel.

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