Patent ID: 8648139

Claim:
A method of making an elastic film used in making a diaper closure or elastic for a diaper, the method comprising the steps of: (a) premixing polymer components and a white oil approved for use in medical applications as a plasticizer oil to form a polymer composite that contains styrene block copolymers; (b) extruding the polymer composite to make an elastic film having at least one layer; and (c) adding during the premixing or the extruding in a proportion of 1% by weight to 5% by weight of the elastic film, a mixture of first and second zeolites of the ZSM-5 structural type wherein the first and second zeolites in the mixture have pore openings of approximately 3 Angstroms and approximately 5 Angstroms respectively, so that the first and second zeolites thereby forming the elastic film having at least one layer with a polymer matrix, wherein the zeolites are embedded in the polymer matrix and homogeneously distributed throughout the polymer matrix so that the elastic film having at least one layer minimizes the odor of styrene monomers released by the styrene block copolymers.