US Patent 7929194 Functionalized glazing

Glazing comprising, in succession:a first rigid substrate (S1);a second rigid substrate (S2);a third rigid substrate (S3);at least one “active” system (A) that includes at least one layer and is placed between the substrates (S1 and S2), the first substrate (S1) optionally being set back in relation to the other two substrates (S2, S3); andat least one polymer film having the function of retaining glazing fragments should the glazing break, said film being placed between the substrate (S1) and the substrate (S2) and between the substrate (S2) and the substrate (S3).