About: http://webisa.webdatacommons.org/80717226

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	However, it may prove advantageous, in order to modify the mechanical properties, for example the hardness, to add chain extenders, crosslinking agents or, if desired, mixtures thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com