About: http://webisa.webdatacommons.org/30157229

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	U.S. Pat. No. 5,681,550 (Rubino) adds 1 to 10% of hardening agents, such as epoxy resins or urethane polymers, to crosslink with the polyurethane-urea dispersion to achieve high molecular weight.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com