About: http://webisa.webdatacommons.org/334688179

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	It is preferred that the material be selected from polymers such as polyurethane, graphite composites containing polyalpha olefin intermediates or other polymers, polyamide or mixtures thereof.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com