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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11767615 B1

PDFFull Text
Date of Patent:
Sep. 26, 2023

Filed:

Sep. 21, 2021

Hollow porous fibers

Applicant:

Kimberly-clark Worldwide, Inc., Neenah, WI (US);

Inventors:

Vasily A. Topolkaraev, Appleton, WI (US);

Mark M. Mleziva, Appleton, WI (US);

Ryan J. McEneany, Appleton, WI (US);

Neil T. Scholl, Neenah, WI (US);

Antonio J. Carrillo, Appleton, WI (US);

Assignee:

Kimberly-Clark Worldwide, Inc., Neenah, WI (US);

Attorney:

Dority & Manning, P.A.

Primary Examiner:

Steven J Bos

Assistant Examiner:

Syed T Iqbal

Int. Cl.
CPC ...
D01F 6/06 (2006.01); B29C 48/04 (2019.01); B29C 48/00 (2019.01); B29C 48/91 (2019.01); D01D 5/247 (2006.01); D01F 6/46 (2006.01); B01J 20/28 (2006.01); B01J 20/30 (2006.01); D01D 5/24 (2006.01); D01D 5/34 (2006.01); D01F 1/10 (2006.01); D01F 8/06 (2006.01); D01F 8/14 (2006.01); D01F 8/16 (2006.01); D02J 1/22 (2006.01); D04H 1/4291 (2012.01); D04H 1/4391 (2012.01); A61F 13/51 (2006.01); A61L 15/22 (2006.01); A61L 15/24 (2006.01); A61L 15/42 (2006.01); B01J 20/26 (2006.01); C08J 9/00 (2006.01); D01F 6/30 (2006.01); B82Y 30/00 (2011.01); D01F 1/08 (2006.01); D01F 6/04 (2006.01); B01D 69/08 (2006.01); B01D 69/14 (2006.01); B01D 71/26 (2006.01); B01D 71/46 (2006.01); B01D 71/48 (2006.01); B29K 23/00 (2006.01);
U.S. Cl.
CPC ...
D01F 6/06 (2013.01); A61F 13/51 (2013.01); A61L 15/225 (2013.01); A61L 15/24 (2013.01); A61L 15/425 (2013.01); B01J 20/261 (2013.01); B01J 20/28011 (2013.01); B01J 20/28023 (2013.01); B01J 20/28028 (2013.01); B01J 20/28033 (2013.01); B01J 20/28042 (2013.01); B01J 20/28085 (2013.01); B01J 20/3007 (2013.01); B29C 48/0012 (2019.02); B29C 48/0018 (2019.02); B29C 48/04 (2019.02); B29C 48/91 (2019.02); C08J 9/0061 (2013.01); D01D 5/24 (2013.01); D01D 5/247 (2013.01); D01D 5/34 (2013.01); D01F 1/10 (2013.01); D01F 6/30 (2013.01); D01F 6/46 (2013.01); D01F 8/06 (2013.01); D01F 8/14 (2013.01); D01F 8/16 (2013.01); D02J 1/224 (2013.01); D04H 1/4291 (2013.01); D04H 1/4391 (2013.01); A61F 2013/51092 (2013.01); B01D 69/087 (2013.01); B01D 69/141 (2013.01); B01D 71/26 (2013.01); B01D 71/46 (2013.01); B01D 71/48 (2013.01); B01D 2239/0618 (2013.01); B29K 2023/12 (2013.01); B82Y 30/00 (2013.01); C08J 2323/12 (2013.01); C08J 2323/14 (2013.01); D01F 1/08 (2013.01); D01F 6/04 (2013.01); D10B 2321/022 (2013.01); D10B 2401/10 (2013.01); D10B 2509/026 (2013.01);
Abstract

A hollow fiber that generally extends in a longitudinal direction is provided. The hollow fiber comprises a hollow cavity that extends along at least a portion of the fiber in the longitudinal direction. The cavity is defined by an interior wall that is formed front a thermoplastic composition containing a continuous phase that includes a polyolefin matrix polymer and a nanoinclusion additive dispersed within the continuous phase in the form of discrete domains. A porous network is defined in the composition that includes a plurality of nanopores.

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