About: http://webisa.webdatacommons.org/397289451

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 invention provides a system whereby expandable polymer, e.g. styrene, particles that are intimately mixed or impregnated with a blowing agent, are formed into foamed cellular particles at the polymer producer's plant.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com