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US 2012/0237705 A1Published application
Method for coating containers
AssigneePPG Industries Ohio, Inc.
InventorsKen W. Niederst, Gregory J. McCollum, Michael A. Zalich, Venkateshwarlu Kalsani
Life of this patent
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Abstract
A method for coating containers and the coated container is disclosed. The method uses a coating composition containing one or more ingredients containing beta-hydroxyester groups and a transesterification catalyst.
Claims15
A container comprising a thermoset coating applied to at least a portion thereof, the coating derived from a composition comprising:
- (a) one or more ingredients containing hydroxyester groups, said composition being essentially free of curing agents that have groups that are co-reactive with hydroxyl groups, and being substantially free of bisphenol A and derivatives of bisphenol A, and
- (b) a transesterification catalyst.
(canceled)
A method of coating a container comprising:
- (a) applying to a surface of the container a thermosetting composition comprising:
- (i) one or more ingredients containing beta-hydroxyester groups, the composition being essentially free of curing agents containing functional groups that are reactive with hydroxyl groups, and being substantially free of bisphenol A and derivatives of bisphenol A, and
- (ii) a transesterification catalyst;
- (b) heating the composition applied in step (a) to a temperature sufficient to cure the composition.
1 more element
Dependencies are inferred from the claim text.