Patent 7351297 was granted and assigned to Tredegar Film Products on April, 2008 by the United States Patent and Trademark Office.
A method for producing a composite web includes supplying two or more webs to an activation mechanism, where the webs are in an unbonded state relative to each other. The method further entails simultaneously activating the webs while they are in a face to face relationship and in an unbonded state, and then bonding the webs to form a composite web.