Containers coated with compositions having enhanced heat-aging properties
First Claim
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1. 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.
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Abstract
Food or beverage containers coated with polyester coating compositions containing capped polyesters are disclosed.
1 Citation
32 Claims
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1. An article comprising:
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(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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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Specification