to facilitate handling and processing in particular the ionomer resin film was 34 surlyn 34 1601 manufactured by the polymer products department of the dupont company the melt index of 34 surlyn 34 1601 is 1 3 dg min astm d 1238 the ion type is sodium and the density is 0 94 g cc a data information sheet on 34 surlyn 34 1601 ionomer resin for flexible packaging is available under the number e 29173 7 81 the information of this technical release including the rheology curves is incorporated herein by reference surlyn type 1707 is also a preferred sodium ionomer resin for use in this invention organic polyamines may be combined with the ionomer resin in an amount of from about 0 5 to about 20 by weight based on the weight of the resin it has been found that the presence of an organic amine in the ionomer resin may serve to maintain the optical clarity of the laminates produced in the invention useful organic amines include aliphatic diamines or triamines or related compounds such as triethylene tetramine or diethylenetriamine the commercially available organic amines are simply combined with the ionomer resin pellets and extruded or cast as desired likewise a mixture of sodium and zinc ionomer resins may be used to prepare the ionomer resin film useful in the invention the sodium and zinc ionomer resins may be combined in a ratio of 95 5 to 5 95 in addition the sodium and zinc ionomers can also be combined with polyamines to form additional resins for purposes of simplifying the test the sandwich was constructed with one outer layer of glass one inner layer of ionomer resin and one outer layer of polycarbonate a three layer laminate as tested can be fully expected to perform in.