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:
Aug. 12, 2014
Filed:
Aug. 09, 2012
Nico Behrendt, Wolfsburg, DE;
Anton Kreiner, Reisbach, DE;
Maximilian Steinbrunner, Marklkofen, DE;
Heiko Brosi, Oberstenfeld, DE;
Bjoern Schmid, Stuttgart, DE;
Nico Behrendt, Wolfsburg, DE;
Anton Kreiner, Reisbach, DE;
Maximilian Steinbrunner, Marklkofen, DE;
Heiko Brosi, Oberstenfeld, DE;
Bjoern Schmid, Stuttgart, DE;
Mann+Hummel GmbH, Ludwigsburg, DE;
Abstract
In a method for producing a polyamide nanofiber product that contains PTFE particles, a spinning solution containing polyamide, PTFE, and a conductivity-increasing additive is provided and nanofibers are produced by electrospinning from the spinning solution. The conductivity-increasing additive is an acid-resistant additive; a surfactant additive; or an acid-resistant and surfactant additive and contains one or more organic salts. The polyamide nanofiber product with PTFE particles is used in filter media and is especially applied to a filter layer of cellulose or synthetic material.