C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
C08G 18/42 (2006.01) C08G 18/76 (2006.01) C08G 18/80 (2006.01) C09D 5/03 (2006.01) C09D 167/02 (2006.01) C09D 175/06 (2006.01)
Patent
CA 2078879
Disclosed are thermosetting, powder coating compositions comprised of semi-crystalline polyesters and .epsilon.-caprolactam- blocked bis(1-cyanato-1-methyl-ethyl)benzene compounds which are readily curable at relatively-mild temperatures and using cure times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters and the .epsilon.-caprolactam- blocked bis(1-cyanato-1-methylethyl)benzene compounds.
Chang Yeong-Ho
Witzeman Jonathan Stewart
Eastman Chemical Company
Gowling Lafleur Henderson Llp
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