Catalysts for low-cure powder coatings and methods for using...

Details Catalysts for low-cure powder coatings and methods for using... Catalysts for low-cure powder coatings and methods for using...

C - Chemistry, Metallurgy

08

G

C08G 18/32 (2006.01) C08G 18/62 (2006.01) C09D 5/03 (2006.01)

Patent

CA 2538219

Catalysts useful for low-cure powder coating compositions are disclosed, having the structure (I): wherein R1 is an organic radical having 6 to 25 carbon atoms; each R2 is independently a multivalent hydrocarbon group having 1 to 20 carbon atoms; Y is (II); each R3 and R4 are independently alkyl or aryl groups having 1 to 12 carbon atoms; each Z is independently oxygen or nitrogen; R5 is absent when Z is oxygen and R5 is hydrogen, an alkyl or aryl group having 1 to 20 carbon atoms, or (Y)a -R2- when Z is nitrogen; a, b, and c are integers; each X is independently S, O, or N(R6); each R6 is independently hydrogen or an alkyl or aryl group having 1 to 12 carbon atoms; and P is a polymeric material.

L'invention concerne des catalyseurs pour des compositions de revêtements en poudre à faible durcissement de structure (I): dans laquelle R1 est un radical organique ayant 6 à 25 atomes de carbone; chaque R2 représente indépendamment un groupe hydrocarbure polyvalent ayant 1 à 20 atomes de carbone; Y est (II); chaque R3 et R4 signifie indépendamment un groupe alkyle ou aryle ayant 1 à 12 atomes de carbone; chaque Z désigne indépendamment oxygène ou azote ; R5 est absent lorsque Z désigne oxygène et R5 signifie hydrogène, un groupe alkyle ou aryle ayant 1 à 20 atomes de carbone ou bien (Y)a - R2- lorsque Z représente azote ; a, b et c sont des nombres entiers ; chaque X désigne indépendamment S, O ou N(R6) ; chaque R6 représente indépendamment hydrogène ou bien un groupe alkyle ou aryle ayant 1 à 12 atomes de carbone ; P est une matière polymère.

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