About: http://webisa.webdatacommons.org/320440042

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	a dense state, thereby improving transparency, avoiding the weakening effect that structural gaps can cause, and avoiding absorption of moisture or other liquids that can degrade the microspheres, e.g., through freeze-thaw cycles.
http://www.w3.org/ns/prov#wasQuotedFrom	freepatentsonline.com