HEAT SEALABLE COATING
    87.
    发明申请

    公开(公告)号:US20200255676A1

    公开(公告)日:2020-08-13

    申请号:US16642421

    申请日:2018-08-30

    申请人: TOPCHIM NV

    摘要: 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 drinking cups or food boxes, in particular hot drinking cups or hot food boxes. Said heat sealable and water repellent coating comprises a cyclic imide co-polymer, at least two adhesive binders, of which one of these is a polymer with a Tg lower than −20° C. and a molecular weight above 25000 Da, said polymer being selected from the group comprising natural rubber, polyacrylate, polystyrene butadiene, polybutene, polyisobutene, polyisoprene; preferably natural rubber, and a tackifying agent.Due to its specific characteristics, the heat sealable and water repellent substrate comprising the coating according to the present invention is biodegradable, recyclable and repulpable.