Kimberly-clark Worldwide, Inc.

Patrick Martin Downey

Vasily Aramovich Topolkaraev

Thomas David Ehlert

Patrick Sean McNichols

Palani Raj Ramaswami Wallajapet

Barton Andrew Laughlin

Dennis Y Lee

John Ford Condron

Nagabhusan Senapati

In a method and apparatus for forming a bonded web comprised at least in part of a polyester, a first material web and a second material web are arranged in opposed relationship with each other at least along those portions of the first and second material webs to be bonded together. At least one of the first and second material webs is comprised at least in part of the polyester. The opposed webs are transported in a machine direction to the nip of a bonding apparatus comprised of a first bonding member and a second bonding member defining the nip therebetween for passage of the opposed first and second material webs therebetween in the machine direction. A shear force is applied to the webs generally in the machine direction at the nip and the webs are mechanically bonded together at the nip while the shear force is applied to webs.

Method and apparatus for mechanically bonding material webs

A multilayer film includes a plastic layer and an elastomeric layer. The plastic layer can contain a co-polyester of terepthalic acid, adipic acid and butanediol, and the elastomeric layer can contain a polyurethane elastomer. The plastic layer and/or the elastomeric layer can contain filler particles, and may be present as a bilayer laminate. The plastic layer and a filled elastomeric layer can also be combined with an unfilled elastomeric layer to form a tri-layer laminate. The multilayer films can provide breathable films with improved degradability, stretchability and recoverability, and tactile feel.

Degradable breathable multilayer film with improved properties and method of making same

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Clinton, UT, United States of America

Patrick Martin Downey