POLYURETHANE COATING MATERIAL COMPOSITION, MULTISTAGE COATING METHODS USING THESE COATING MATERIAL COMPOSITIONS, AND ALSO THE USE OF THE COATING MATERIAL COMPOSITION AS CLEARCOAT MATERIAL AND PIGMENTED COATING MATERIAL, AND APPLICATION OF THE COATING METHOD FOR AUTOMOTIVE REFINISH AND/OR FOR THE COATING OF PLASTICS SUBSTRATES AND/OR OF UTILITY VEHICLES
申请人:Westhoff Elke
公开号:US20140161981A1
公开(公告)日:2014-06-12
Disclosed are coating material compositions comprising at least one polyhydroxyl group-containing compound (A), at least one polyisocyanate group-containing compound (B) having free and/or blocked isocyanate groups, at least one catalyst (D) based on a zinc-amidine complex which comprises the reaction product of 1.0 moles of at least one zinc(II) biscarboxylate with more than 2.0 moles of at least one amidine
where R
5
=hydrogen and R
1
, R
2
, R
3
, and R
4
are each identical or different radicals, R
1
and R
3
being hydrogen or an alkyl radical or an aryl radical, and R
2
and R
4
being an alkyl radical or an aryl radical, and at least one monomeric aromatic, optionally substituted carboxylic acid (S) whose carboxyl group is in conjugation with a π-electron system.