About: http://webisa.webdatacommons.org/121278713

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	Preferred for use in the practice of this invention are polyphenylene oxides in which Rb and Rc are substituents other than hydrogen, preferably alkyl or phenyl and more preferably linear alkyl having from 1 to about 4 carbon atoms.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com