COMPOSITE FILMS AND PROCESS FOR MAKING THE SAME BACKGROUND OF THE INVENTION

摘要

A composite article that includes (A) a carrier film having a first and second major surface, and (B) a coating layer superimposed on the first surface of the film. A method for forming a polyurea coating layer on a carrier film includes: (I) selecting: (A) an isocyanate-containing component; and (B) an amine-containing component, where the volume ratio of (A) to (B) is about 1:1, and the equivalent ratio of isocyanate groups to amine groups is greater than 1; (II) mixing (A) and (B) to form a reaction mixture; and (III) applying the reaction mixture to a surface of the carrier film to form a polyurea coating on the carrier film.