COATING COMPOSITION Russian patent published in 2018 - IPC C09D167/00 C09D167/02 C09D167/06 C08G63/20 C08G63/52 B65D25/14 

FIELD: food industry.

SUBSTANCE: invention relates to coating compositions of a container for food and / or beverages and a food container. Composition comprises a polyester material, wherein the polyester material comprises the reaction product of a two step process. Two-step process comprises: first step comprising the preparation of a polyester prepolymer by contacting (a) 1,2-propanediol, (b) terephthalic acid, and a second step comprising contacting the prepolymer of the polyester and (c) the molecular weight increasing agent. Polyester material has a number average molecular weight (Mn) of at least 6,100 Da and a glass transition temperature (Tg) of at least 80 °C. At least a portion of the container is coated with a coating composition containing a polyester material.

EFFECT: invention makes it possible to obtain coatings with excellent adhesion to the substrate, safe in contact with food, abrasion resistance, and resistance to acidic conditions under sterilization conditions.

14 cl, 6 tbl, 15 ex