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US 10,370,151 B2Granted
Containers coated with compositions having enhanced heat-aging properties
AssigneePPG Industries Ohio, Inc.
InventorsMax Molleo, Kareem Kaleem, Carl Seneker, Youssef Moussa, Edward Dean
Life of this patent
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Abstract
Food or beverage containers coated with polyester coating compositions containing capped polyesters are disclosed.
Claims32
An article comprising:
- (a) a substrate of a food or beverage container including a portion thereof,
- (b) a crosslinked coating applied to at least a portion of the substrate;
- the cured coating being derived from a coating composition comprising:
- (i) a polyester resin that is prepared by reacting:
- (A) a polyester resin containing terminal carboxylic acid groups having an acid number of at least 5, with
- (B) an end capping agent that reacts with the carboxylic acid groups to reduce the acid number to below 2.5, wherein the end capping agent comprises an oxazoline or an epoxide;
- (ii) a crosslinking agent that is reactive with the polyester resin.
4 more elements
Dependencies are inferred from the claim text.