Kimberly-clark Worldwide, Inc.

Kimberly-clark Corporation

Tracy Neal Wilson

David Craige Strack

Donald V Willitts

Rob Lee Jacobs

Billy Ray Jones, Jr

Single and multicomponent polymeric strands including a blend of a melt-extrudable polyolefin and a heterophasic polypropylene composition. The heterophasic polypropylene composition includes three polymers and is normally not melt-spinable into strands by itself. In the multicomponent strands, the blend is in one side or the sheath. Fabric made with such strands is also disclosed and has improved combinations of strength, abrasion resistance, and softness properties. Composite materials including the foregoing fabric bonded to both sides of an inner meltblown layer are also disclosed. In addition, garments made with the fabric are disclosed.

Polymeric strands including a propylene polymer composition and nonwoven fabric and articles made therewith

Breathable barriers, comprising a thermoplastic polymer and at least 30% by weight filler, are stretched in one direction in multiple discrete steps wherein the strain rate of each discrete stretching step is less than about 100,000%/minute and wherein the line speed of the last stretching step is in excess of 500 feet per minute. The resulting films may be stretched, as a result of the cumulative discrete stretching operations, from about 2 to 7 times its original length in order to create a breathable barrier having a WVTR in excess of 800 g/m,/day and a hydrohead of at least 60 cm.

Methods of making stretched filled microporous films

Polymeric strands including a propylene polymer composition and nonwoven

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Woodstock, GA, United States of America

Tracy Neal Wilson