Tredegar Industries, Inc.

Tredegar Film Products Corporation

Timothy L Clark

Gary A Otte

John D Biagioli

Paul Eugene Thomas

Rickey J Seyler

James David Tribble

Matthew John O'Sickey

Formed film, apparatus and methods for manufacturing formed film, and articles of manufacture are disclosed. Methods include controlled introduction of melt foldovers through modifying the surface area of a polymer melt curtain. Apparatus for same is also shown as are articles of formed film with melt foldovers.

Formed film, methods and apparatus for manufacturing same, and articles comprising same

Embodiments of a thin web comprising a plurality of channels extending through the film are disclosed. The channels are in a substantially closed position but are capable of being in an open position to allow flow from the female side through the film to the male side. In certain applications, a greater pressure on the female side than the male side is capable of opening the channels. Embodiments may also include a thin web comprising a plurality of three dimensional apertures extending through the plastic film. The apertures may form a substantially closed channel defined by a sidewall and the channels being disposed at an angle greater than 70&#xb0; with respect to a female side of the film. The thin web may be a plastic film or a thermoplastic film comprising a polyolefin, for example, or any other suitable material. The polyolefin may comprise at least one of polyethylene, polypropylene, low density polyethylene, or high density polyethylene, for example.

Thin web

The present invention provides an improved method for laminating a first three-dimensional apertured or non-apertured film material to a second flat or three-dimensional apertured or non-apertured film material utilizing the heat generated by the extrusion of the first and/or second materials and the films produced thereby.

Lamination of apertured or non-apertured three-dimensional films to

Method and apparatus for the lamination of apertured or non-apertured

Lamination of non-apertured three-dimensional films to apertured

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Sullivan, IN, United States of America

Timothy L Clark