• Patent

Ozone resistant O.sub.2/N.sub.2 separation membranes

Ozone resistant O.sub.2/N.sub.2 gas separation membranes comprise a polymer membrane and an ozone reacting component, such as an antioxidant. The antioxidant may be included in the support layer of a composite membrane or included in the entire structure of an asymmetric membrane. The antioxidants in the separation membrane reduce oxidation and deterioration of the actual separation layer of the membrane.


Zhou, S., & Yates, S. F. (2010). Ozone resistant O.sub.2/N.sub.2 separation membranes (Patent No. 7,699,911.) DOI: http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7,699,911.PN.&OS=PN/7,699,911&RS=PN/7,699,911