About: http://webisa.webdatacommons.org/411907426

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	The method of claim 1 wherein the membrane is an asymmetric membrane selected from the group consisting of a polyimide membrane, a polyureaurethane membrane and a polysiloxane membrane.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com