About: http://webisa.webdatacommons.org/200352841

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	While ultrafine particle silica (such as Aerosil from Degussa, for example), and fine-powder metal oxides such as TiO2, SiO2, Al2 0 3 are added to the silicon resin, the invention is not limited to these metal oxides.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com