Coating compositions for containers and methods of coating

B - Operations – Transporting – 32 – B

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B32B 27/08 (2006.01)

Patent

CA 2622550

This invention provides a coating composition for use on a food-contact surface of a container (e.g., a food or beverage can) that includes a polymer having one or more segments of Formula T: -O-Ar-Rn-C(O)-O-R1-O-C(O)-Rn-Ar-O-, wherein each Ar is independently a divalent aryl group (i.e., an arylene group) or heteroarylene group; R1 is a divalent organic group; each R is independently a divalent organic group; and n is 0 or 1. Containers comprising the polymer and methods of making such containers are also provided.

La présente invention concerne une composition de revêtement destinée à une utilisation sur une surface d'un contenant en contact avec des aliments (par exemple, une boîte pour aliments ou boissons) incluant un polymère comportant un ou plusieurs segments de formule T : -O-Ar-Rn-C(O)-O-R1-O-C(O)-Rn-Ar-O-, dans laquelle chaque Ar représente indépendamment un groupement aryle divalent (c'est-à-dire un groupement arylène) ou un groupement hétéroarylène ; R1 représente un groupement organique divalent ; chaque R représente indépendamment un groupement organique divalent ; et n vaut 0 ou 1. L~invention concerne également des contenants comprenant le polymère et des procédés de fabrication de tels contenants.

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