About: http://webisa.webdatacommons.org/312813113

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 polyester polymers can themselves be prepared by methods known to the art, for example by reacting an acid or anhydride having a double bond with a polyol, for example a diol.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca