Highly porous fibrous network materials for gas filtration

US10315155B2 · kind B2 · utility

Assignee

• The Research Foundation for The State University of New York · US

Inventors

• Benjamin Chu · Setauket, US
• Benjamin S. Hsiao · Setauket, US
• Hongyang Ma · East Setauket, US

Key dates

• Filing date: May 27, 2015
• Grant date: Jun 11, 2019
• Expiry date: Nov 3, 2035

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01D2323/30
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Membranes are provided for filtering a gas, in some cases air. Membranes using a highly porous cellulose nano fibrous barrier layer with a highly porous (surface-charged) substrate can exhibit high flux, high retention, and low pressure drop in air filtration of toxic aromatic gases, fumes, bacteria, viruses, dusts, and particulate matters.