C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 167/02 (2006.01) C08J 3/24 (2006.01) C08J 3/28 (2006.01) C08K 5/1515 (2006.01) C09D 5/03 (2006.01)
Patent
CA 2379807
A process for preparing weather-resistant powder coatings on metallic or non-- metallic surfaces by applying a powder coating composition and then melting and curing, wherein a powder coating composition is applied which contains polyester resins in which the acid structural blocks are based only or mainly on aromatic dicarboxylic acids, their anhydrides and/or esters, and polyfunctional low molecular weight epoxides as cross-linking agents, and the melting and curing is performed by NIR radiation.
Procédé de réalisation de recouvrements en poudre sur des surfaces métalliques ou non métalliques, par application d'une composition de laque en poudre que l'on fait ensuite fondre et durcir. La composition de laque en poudre appliquée contient des résines de polyester, leur composant acide, seul ou principalement à base d'acides dicarboxyliques aromatiques, de leurs anhydrides et/ou esters, et, comme réticulant, des époxydes polyfonctionnels de bas poids moléculaire. La fusion et le durcissement sont obtenus par irradiation dans l'infrarouge proche.
Thiele Olaf
Zimmermann Frank
E.i. Du Pont de Nemours And Company
Kirby Eades Gale Baker
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