<http://webisa.webdatacommons.org/prov/165608943>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/343452610> .
<http://webisa.webdatacommons.org/343452610>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .
<http://webisa.webdatacommons.org/343452610>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/343452610>	<http://www.w3.org/ns/prov#value>	"In either event, the blocks will be connected by a diisocyanate group and hence by a urethane linkage. [0215] The hydroxyl terminated polyethers contain repeat units having from 2 to about 6 and desirably from 2 to about 3 carbon atoms such as polyethylene oxide, polypropylene oxide, polybutylene oxide, and the like." .