About: http://webisa.webdatacommons.org/66215231

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	The catalyst employed is a metallocene of a metal of group 4b, 5b or 6b of the periodic table, for example titanium, vanadium or hafnium, in particular titanium.
http://www.w3.org/ns/prov#wasQuotedFrom	google.es