About: http://webisa.webdatacommons.org/201114275

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	This invention relates to a membrane, and more particularly to a membrane and a method of filtering and purifying gases of impurities.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com