POLYURETHANE LAYERS AND USE OF REACTIVE FLAME RETARDANTS

    公开(公告)号:EP3981813A1

    公开(公告)日:2022-04-13

    申请号:EP20201394.2

    申请日:2020-10-12

    申请人: Benecke-Kaliko AG

    摘要: A method for producing a polyurethane film including preparing a paste-like compound comprising a polyurethane forming mixture, wherein the polyurethane forming mixture comprises a prepolymer having isocyanate function groups and at least one flame retardant, applying the paste-like compound to a base, drying and crosslinking the paste-like compound applied to the base through addition of heat to form a film, allowing the film to cool, characterized in that the at least one flame retardant is a polyamine methylphosphonate complex, and wherein the isocyanate function groups are at least 80% crosslinked after allowing the film to cool.