About: http://webisa.webdatacommons.org/34475458

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 binder may be those disclosed in U.S. Pat. Nos. 3,469,982 and 3,984,244 and is preferably a polar material such as an acidic polymer containing at least 1.5 mole percent free acid groups to impart
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com