Patent · US Active

Removal of bacteria from drinking water via filtration

US11633718B2 · kind B2 · utility

1Cited by

1References

6Claims

0Family size

Assignee

instrAction GmbH · DE

Inventors

Martin Welter · Heidelberg, DE
Christian Meyer · Demarest, US
Kristian Lungfiel · Wiesbaden, DE

Key dates

Filing date	Aug 1, 2018
Grant date	Apr 25, 2023
Priority date	—
Expiry date	Sep 11, 2039

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2303/04
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The present invention relates to a method for producing biocidal, porous particles of a cross-linked polymer, and to the porous particles that can be produced according to the method of the invention. The invention further relates to porous particles of an amino-group-containing polymer (polyamine) having a relatively low swelling factor. The porous particles according to the invention are used to remove biological contaminants from water and to bind metal-containing ions from solutions. The present invention further relates to a filter cartridge which contains the porous cross-linked polymer particles according to the invention.

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