<http://webisa.webdatacommons.org/140239535>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/140239535>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/140239535>	<http://www.w3.org/ns/prov#value>	"In practice of this aspect of the invention, cross-linking is effected by contacting the surface of the membrane with a 0.1 w %-0.8 w %, say 0.4 w % solution of cross-linking agent in solvent, typically of hydrocarbon such as hexane." .
<http://webisa.webdatacommons.org/prov/453241414>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/140239535> .