Patent · US Active

Air-permeable sheet filter material, methods for the production and use thereof

US11607668B2 · kind B2 · utility

1Cited by

0References

26Claims

0Family size

Assignee

BLÜCHER GMBH · DE

Inventors

Bertram Böhringer · Erkrath, DE
Rainer Fischer · Monschau, DE
Congminh Nguyen · Wuppertal, DE

Key dates

Filing date	Sep 3, 2018
Grant date	Mar 21, 2023
Priority date	—
Expiry date	Nov 4, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB32B2535/00
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a sheet filter material, in particular having an aerosol filter function and/or a particle filter function, preferably having a protective function against chemical, biological and/or chemical harmful and toxic substances, and to a method for the production thereof. The sheet filter material is particularly suitable for producing protective equipment, protective objects, sports and leisure clothing and filters and filter materials of all types.

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