| abstract |
Catalysts useful for low-cure powder coating compositions are disclosed, having the structure (I): n nwherein R 1 is an organic radical having 6 to 25 carbon atoms; each R 2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is n neach R 3 and R 4 are independently alkyl or aryl groups having 1 to 12 carbon atoms; each Z is independently oxygen or nitrogen; R 5 is absent when Z is oxygen and R 5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y) a —R 2 — when Z is nitrogen; a, b, and c are integers; each X is independently S, O, or N(R 6 ); each R 6 is independently hydrogen or an alkyl or aryl group having 1 to 12 carbon atoms; and P is a polymeric material. |