<http://webisa.webdatacommons.org/299318649>	<http://www.w3.org/ns/prov#value>	"A combination of polymer materials including the non-porous layer and polymer materials including the porous layer is not especially limited; a combination of the same kinds of polymers may be used as well as a combination of different kinds of" .
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<http://webisa.webdatacommons.org/prov/139342961>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/299318649> .
<http://webisa.webdatacommons.org/299318649>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<patents.com> .