| 摘要 |
<p>The invention relates to a sol-gel coating material, containing (A) an acrylate copolymer solution, consisting of at least one acrylate copolymer (A1), (B) a sol which can be produced by the hydrolysis, condensation and complexing of at least one hydrolysable metal compound (B1) of the formula (I): MRn; wherein the variables and the index have the following meanings: M = aluminium, titanium or zirconium; R = hydrolysable groups, hydroxy groups and non-hydrolysable groups, with the proviso that there should be at least one, preferably two hydrolysable groups; and n = 3 or 4; by the hydrolysis, condensation and complexing of at least one hydrolysable silane (B2) of the formula (II): Si(R<1>)2(R<2>)2; wherein the variables R<1> and R<2> have the following meanings: R<1> = alkyl and/or cycloalkyl radicals and R<2> = alkoxy and/or cycloalkoxy radicals; and by the hydrolysis, condensation and complexing of at least one hydrolysable silane (B3) of the formula (III): SiR4; wherein the variable R has the aforementioned given meaning; with the proviso that the silane (B3) is not a silane (B2) according to the general formula (II); and (C) between 0 and 40 % by weight, in relation to the total quantity of the coating material, of a parent lacquer which can be produced by the hydrolysis and condensation of at least one hydrolysable silane (B3) of general formula (III).</p> |
