About: http://webisa.webdatacommons.org/251076004

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	A pigment such as clay or silica may be incorporated into the barrier layer in such an amount that the light transmittance of the resulting composite sheet 30 is maintained in a proper range.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com