About: http://webisa.webdatacommons.org/3218401

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	Suitable polymers include PTFE, and other polymers commonly used for grafts such as polyesters and nylons Metals and polymers other than those disclosed herein may also be used in the practice of the invention.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com