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. 26, 2011
Filed:
Apr. 18, 2008
Michael Allen Bryner, Midlothian, VA (US);
Jack Eugene Armantrout, Richmond, VA (US);
Benjamin Scott Johnson, Rocky Mount, NC (US);
Michael Allen Bryner, Midlothian, VA (US);
Jack Eugene Armantrout, Richmond, VA (US);
Benjamin Scott Johnson, Rocky Mount, NC (US);
E.I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
An improved electroblowing process is provided for forming a fibrous web of nanofibers wherein polymer stream is issued from a spinning nozzle in a spinneret with the aid of a forwarding gas stream, passes an electrode and a resulting nanofiber web is collected on a collector. The process includes applying a high voltage to the electrode and grounding the spinneret such that an electric field is generated between the spinneret and the electrode of sufficient strength to impart an electrical charge on the polymer as it issues from the spinning nozzle.