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US 10,836,928 B2Granted
Polyoxazoline curing for packaging coating compositions
AssigneePPG Industries Ohio, Inc.
InventorsMax Aaron Molleo, Hongying Zhou, Carl Allen Seneker, Christopher Paul Kurtz, Qin Li
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Abstract
Coated packaging and methods for coating such packaging are disclosed. The coating compositions comprise a polymer comprising acid functionality and a polyoxazoline, wherein the coating composition is substantially free of formaldehyde. The coating compositions may be applied onto at least a portion of the interior and/or exterior of packaging, such as metal cans and can ends.
Claims30
A package coated at least in part on a surface, the coating composition comprising:
- (a) a polymer comprising acid functionality, and
- (b) a polyoxazoline, wherein the coating composition comprises less than 1000 ppm based on the total weight of the coating composition of formaldehyde, derivatives thereof, and residues thereof.
Dependencies are inferred from the claim text.