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:
Jan. 03, 2023

Filed:

May. 17, 2019
Applicants:

Pfnonwovens Llc, Hazleton, PA (US);

Pfnonwovens Holding S.r.o, Prague, CZ;

Inventors:

John Charles Parsons, IV, Dallas, PA (US);

Peter Zajaczkowski, Greenville, SC (US);

Karthik Ramaratnam, Dallas, PA (US);

Sven Krister Mikael Erlandsson, Advance, NC (US);

Pavlina Kasparkova, Znojmo, CZ;

Assignees:

PFNONWOVENS LLC, Hazleton, PA (US);

PFNONWOVENS HOLDING S.R.O, Prague, CZ;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/26 (2006.01); B32B 5/02 (2006.01); D04H 1/56 (2006.01); D04H 1/4382 (2012.01);
U.S. Cl.
CPC ...
B32B 5/26 (2013.01); B32B 5/022 (2013.01); D04H 1/43838 (2020.05); D04H 1/56 (2013.01); D04H 1/43825 (2020.05);
Abstract

A nonwoven composite fabric including a first nonwoven layer composed substantially of meltblown fibers, the fibers within the first nonwoven layer having diameters that vary in accordance with a first distribution, a second nonwoven layer composed substantially of meltblown fibers, the fibers within the second nonwoven layer having diameters that vary in accordance with a second distribution, and a third nonwoven layer composed substantially of meltblown fibers, the third nonwoven layer disposed between the first and second nonwoven layers, the fibers within the third nonwoven layer having diameters that vary in accordance with a third distribution that is greater than the first and second distributions.


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