Thermosetting two-component coating compositions
AssigneeBayer Aktiengesellschaft
InventorsMichael Ludewig, Christoph Gürtler, Detlef-Ingo Schütze
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Abstract
The present invention relates to thermosetting two-component coating compositions containing A) at least one NCO prepolymer, B) at least one amine-free chain extender, C) at least one catalyst selected from metal 1,3-dicarbonylates and metal-oxo 1,3-dicarbonylates, wherein i) the metal 1,3-dicarbonylate contains as a neutral complex a metal cation with the electron configuration d0 of sub-group 3 or a lanthanide and ii) the metal-oxo 1,3-dicarbonylate contains a metal-oxo cation of sub-group 6 with the electron configuration d0. The present invention also relates to a process for preparing these coating compositions and to coated substrates prepared therefrom.
Claims12
A thermosetting two-component coating composition comprising
- A) at least one NCO prepolymer,
- B) at least one amine-free chain extender,
- C) catalyst comprising an yttrium 1,3-dicarbonylate.
Dependencies are inferred from the claim text.