About: http://webisa.webdatacommons.org/53688243

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	For this purpose, oxides, oxide hydrates or phosphates, for example of the elements Al, Si, Zr, are precipitated on the pigment surface in dense layers.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com