Kimberly-clark Worldwide, Inc.

Wen Yuan

Peiguang Zhou

Davis Dang Hoang Nhan

Vikram Sharad Kaul

Wade R Thompson

Paul Milbrodt

Described herein are modified thermoplastic polyurethanes, methods of reactively extruding the modified thermoplastic polyurethanes, and methods of using the modified thermoplastic polyurethanes. The modified thermoplastic polyurethanes are micro-crosslinked through reaction with a functional polyolefin, have significantly improved tensile strength and elongation compared to unmodified thermoplastic polyurethanes, and may be extruded.

Modified thermoplastic polyurethanes and methods of extruding same

Methods and systems for cutting or perforating webs are disclosed. A method of cutting or perforating a web can include providing a web including a film. The film can include a polyolefin polymer and a plurality of particles. The film can include a width and length defining a surface. The method can further include stretching the film to provide a stretched film. Stretching the film can provide a plurality of voids in the stretched film. The method can additionally include providing a laser assembly. The method can include directing abeam of light from the laser assembly upon the surface of the web to cut or perforate the web in at least one location.

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Randolph, WI, United States of America

Wen Yuan