<http://webisa.webdatacommons.org/153463101> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/153463101> <http://www.w3.org/ns/prov#wasQuotedFrom> <patents.com> . <http://webisa.webdatacommons.org/prov/304795312> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/153463101> . <http://webisa.webdatacommons.org/153463101> <http://www.w3.org/ns/prov#value> "there are natural rubber, neoprene, styrene butadiene rubber, polybutadiene rubber, polybutadiene, polyether urethanes with and without reinforcing fibers and fillers such as silica smoke, carbon black and the like." . <http://webisa.webdatacommons.org/prov/311980983> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/153463101> . <http://webisa.webdatacommons.org/prov/396154158> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/153463101> . <http://webisa.webdatacommons.org/prov/94888624> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/153463101> . <http://webisa.webdatacommons.org/prov/121148932> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/153463101> .