Patent ID: 7470752

Claim:
A curable powder composition comprising: (a) the reaction product of an acidic hydrogen-containing compound and at least one material having the structure of Formula I: wherein 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 each R 3 and R 4 are independently alkyl or aryl groups having 1 to 8 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 is at least 1; b is 1 to 3; and (b) at least one epoxy-containing resin and/or at least one siloxane-containing resin; and when the epoxy-containing resin is a polyepoxide, Z is nitrogen, R 2 is alkylene having 1 to 4 carbons, R 3 and R 4 are alkyl groups having 1 to 4 carbons, the composition cures in the absence of any additional component.