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.:
Date of Patent:
Apr. 28, 2020
Filed:
May. 13, 2015
Biax-fiberfilm Corporation, Greenville, WI (US);
Douglas B. Brown, Fremont, WI (US);
Jeffrey D. Stark, Neenah, WI (US);
Mohammad A. Hassan, Appleton, WI (US);
Biax-Fiberfilm Corporation, Greenville, WI (US);
Abstract
A hybrid non-woven web is disclosed which is a matrix of a stream of fibers of a first material joined to streams of first and second spun-blown fibers. Each of the first and second spun-blown fibers are formed from a thermoplastic composition that contains at least one polymer having a melt flow rate of from between about 5 grams/10 minutes to about 6,000 grams/10 minutes at 230° C. Each of the first and second spun-blown fibers also have an average diameter of between about 1 microns to 10 microns and a standard deviation of from between about 0.9 microns to about 5 microns. In addition, the hybrid non-woven web has a tensile strength of at least about 5 gf/gsm/cm width, measured in a machine direction. An apparatus and a method of forming the hybrid non-woven web are also disclosed.