Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same

US7614507B2 · kind B2 · utility

Assignee

• PUR Water Purification Products, Inc. · US

Inventors

• Michael Donovan Mitchell · Cincinnati, US
• Dimitris Ioannis Collias · Mason, US
• David W. Bjorkquist · Wyoming, US
• Piyush Narendra Zaveri · Mason, US
• Matthew Morgan Woolley · Chapel Hill, US

Key dates

• Filing date: Nov 11, 2003
• Grant date: Nov 10, 2009
• Expiry date: Nov 11, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C02F2307/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A filter for providing potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a plurality of mesoporous, basic, and reduced-oxygen activated carbon filter particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the killing or removal of bacteria, viruses, and microbials are also provided.