Patent ID: 6361868
Filing Date: 2002-03-26
Classification: C09D,Y10T

Abstract:
A coating composition comprisingA) at least one silicon compound which has at least one radical that is bonded directly to Si, is not able to be separated hydrolytically and contains an epoxy group, and per mole of component A), B) 0.42 to 0.68 moles of a particulate material which is selected from the group consisting of oxides, oxide hydrates, nitrides and carbides of Si, Al, B and transition metals, and has a particle size of 1 to 100 nm, C) 0.36 to 0.90 moles of a Si, Ti, Zr, B, Sn or V compound, which is different than compound A) and corresponds to the formula RxM4+Râ€²4âˆ’x orRxM3+Râ€²3âˆ’x â€ƒwherein M4+ represents Si4+, Ti4+, Zr4+, Sn4+, M3+ represents B3+ or (VO)3+, R represents a hydrolyzable radical, Râ€² represents a non-hydrolyzable radical and x is 1 to 4 in the case of quadrivalent metal atoms M and 1 to 3 in the case of trivalent metal atoms M and D) 0.14 to 0.22 moles of at least one hydrolyzable Ti, Zr or Al compound corresponding to the formula M(Râ€²â€³)n â€ƒwherein M represents Ti, Zr or Al, Râ€²â€³ represents the same or different hydrolyzable groups and n is 4 when M is Ti or Zr and 3 when M is Al.