Patent · US Active

Filter medium for deactivating allergens

US10315146B2 · kind B2 · utility

0Cited by

1References

19Claims

0Family size

Assignee

Carl Freudenberg KG · DE

Inventors

Heiko Schacht · Weinheim, DE
Uwe Haefner · Kehl, DE
Oliver Staudenmayer · Weinheim, DE

Key dates

Filing date	Oct 28, 2016
Grant date	Jun 11, 2019
Priority date	—
Expiry date	Sep 2, 2037

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01D2279/50
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Filter medium, comprising at least one acid-functionalized layer, characterized in that the acid-functionalized layer has a first acid with a pks 1 value of 0 to 7 and a C8 to C18 fatty acid as the second acid.

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