| abstract |
The present invention relates to a heat-sealable and water-repellent coating and a substrate comprising said heat-sealable and water-repellent coating that can be used in the manufacture of beverage cups or food cans, particularly hot beverages or hot food cans. Said heat-sealable and water-repellent coating comprises a cyclic imide copolymer, at least two adhesive binders, one of which is a polymer having a Tg lower than -20 ° C and a molecular weight greater than 25,000 Da, said polymer being selected from the group comprising natural rubber, polyacrylate, polystyrene-butadiene, polybutene, polyisobutene, polyisoprene; preferably natural rubber, and a tackifier. Because of its specific characteristics, the heat-sealable and water-repellent substrate comprising the coating according to the present invention is biodegradable, recyclable and repeatable. |