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

Zhou, S., & Yates, S. F. (2010). Ozone resistant O.sub.2/N.sub.2 separation membranes. (U.S. Patent No. 7,699,911). https://doi.org/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

Abstract

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.

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