Amine curatives for powder coating applications

Details Amine curatives for powder coating applications Amine curatives for powder coating applications

C - Chemistry, Metallurgy

08

K

C08K 5/205 (2006.01) B05D 1/06 (2006.01) B05D 1/24 (2006.01) B05D 3/02 (2006.01) C08G 59/40 (2006.01) C08G 71/04 (2006.01) C09D 5/03 (2006.01) C09D 5/46 (2006.01) C09D 7/12 (2006.01) C09D 133/06 (2006.01) C09D 167/06 (2006.01)

Patent

CA 2217431

A method is described wherein a compound containing amine functionality is reacted in its liquid form with carbon dioxide to convert the compound into a solid amine carbamate salt for use as a blocked amine curative in powder coating manufacturing and resulting powder coating operations. The blocked amine curative decomposes on heating and reverts back to a liquid amine providing a highly reactive curative and flow modifier for powder coating applications.

On décrit une méthode dans laquelle on fait réagir un composé portant une fonction amine dans sa forme liquide avec du dioxyde de carbone pour le convertir en un sel de carbamate d'amine solide pour utilisation comme agent de cuisson à base d'amine bloquée dans la fabrication des revêtements en poudre et dans l'application des revêtements en poudre ainsi obtenus. L'agent de cuisson à base d'amine bloquée se décompose à la chaleur et redevient une amine liquide fournissant un agent de cuisson hautement réactif et un modificateur d'écoulement pour les applications de revêtement en poudre.

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