C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 67/08 (2006.01) C07C 69/003 (2006.01) C07C 69/013 (2006.01) C07C 69/02 (2006.01) C07C 69/025 (2006.01) C07C 69/03 (2006.01) C07C 69/34 (2006.01) C07C 69/347 (2006.01) C07C 69/36 (2006.01) C07C 69/40 (2006.01) C07C 69/42 (2006.01) C07C 69/44 (2006.01) C07C 69/48 (2006.01) C07C 69/50 (2006.01) C07C 69/52 (2006.01) C07C 69/527 (2006.01) C07C 69/60 (2006.01) C07C 69/675 (2006.01) C08G 18/42 (2006.01) C08G 18/68 (2006.01) C08G 18/79 (2006.01) C08G 18/80 (2006.01) C08G 63/60 (2006.01) C09D 167/00 (2006.01)
Patent
CA 2344540
The present invention relates to powder coating compositions which can be cured at low temperatures. The powder coating composition of the invention includes a unique combination of a branched oligoester polyol and uretdione cross-linking agent which when cured results in a coating binder with desirable hardness, flexibility, solvent resistance, corrosion resistance, weatherability and gloss.
Cette invention a trait à des compositions de revêtement en poudre pouvant prendre à basse température. Cette composition renferme une combinaison unique d'un polyol oligo-ester à chaînons et d'un agent de réticulation uretdione qui, une fois pris, donne lieu à un produit agglutinant de recouvrement présentant les caractéristiques souhaitables de dureté, de souplesse, de brillance et de résistance aux solvants, à la corrosion, ainsi qu'aux intempéries.
Bronk John Michael
Panandiker Kamlesh P.
Spitler Franklin Paul
Hexion Specialty Chemicals Inc.
Macrae & Co.
Mcwhorter Technologies Inc.
Resolution Specialty Materials Llc
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