About: http://webisa.webdatacommons.org/89639668

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	U.S. Pat. No. 3,515,775 discloses a polypropylene blend of certain types of polypropylene, high density crystalline polyethylene and an amorphous ethylene-propylene copolymer which has relatively high optical properties.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com