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.

Date of Patent:
Jul. 04, 2017

Filed:

May. 24, 2013
Applicant:

Hollingsworth & Vose Company, East Walpole, MA (US);

Inventors:

Nagendra Anantharamaiah, Roanoke, VA (US);

William S. Freeman, Roanoke, VA (US);

Bruce Smith, Copper Hill, VA (US);

Assignee:

Hollingsworth & Vose Company, East Walpole, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/18 (2006.01); B01D 39/16 (2006.01); B01D 39/20 (2006.01); D01D 5/08 (2006.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); B01D 39/18 (2013.01); B01D 39/2017 (2013.01); B01D 2239/0654 (2013.01);
Abstract

Polymer compositions that may be used to form fibers for a fiber web are generally described. In some embodiments, certain properties of the polymer compositions (e.g., molecular weight distribution, melt flow index, melt elasticity, and/or melt toughness) may allow the formation of fiber webs having fine fibers and a relatively low amount of process defects. In some instances, these properties of the polymer composition may be achieved by combining two or more polymer components. Fiber webs formed using the polymer composition may have increased performance and/or better structural characteristics compared to fibers webs formed using a single polymer component.


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