Patent · US Active

Method for producing a polyamide nanofiber product by electrospinning

US8801998B2 · kind B2 · utility

1Cited by

3References

14Claims

0Family size

Assignee

MANN+HUMMEL GmbH · DE

Inventors

Nico Behrendt · Ludwigsburg, DE
Anton Kreiner · Dingolfing, DE
Maximilian Steinbrunner · Marklkofen, DE
Heiko Brosi · Oberstenfeld, DE
Bjoern Schmid · Munich, DE

Key dates

Filing date	Aug 9, 2012
Grant date	Aug 12, 2014
Priority date	—
Expiry date	Aug 9, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/2938
WIPO fieldChemical engineering
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.