About: http://webisa.webdatacommons.org/314025633

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	In the first invention, a chain extender is preferably aromatic diamine, particularly preferably, 3,5-bis(methylthio)-2,4-toluenediamine and/or 3,5-bis(methylthio)-2,6-toluenediamine.
http://www.w3.org/ns/prov#wasQuotedFrom	freshpatents.com