| 摘要 |
<p>The present invention relates to two-component coating compositions containinga) a polyisocyanate component,b) an isocyanate-reactive component andc) 0.1 to 20 wt. %, based on the weight of components a) and b), of a compound containing alkoxysilane groups and urea groups corresponding to the formulawhereinX represents identical or different organic groups which are inert to isocyanate groups below 100° C., provided that at least one of these groups is an alkoxy group,Y represents a linear or branched alkylene group containing 1 to 8 carbon atoms,R represents the residue obtained by removing the isocyanate groups from a monoisocyanate or a polyisocyanate,R1 and R2 are identical or different and represent organic groups which are inert to isocyanate groups at a temperature of 100° C. or less,R3 and R4 are identical or different and represent hydrogen or organic groups which are inert to isocyanate groups at a temperature of 100° C. or less, andn has a value of 1 to 6.The present invention also relates to substrates coated with these coating compositions, in particular metal substrates.</p> |
