PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • These resins are phenol-formaldehyde resins which are modified with nitrogen-containing compounds, such as urea, dicyandiamide and melamine in various combinations.
http://www.w3.org/ns/prov#wasQuotedFrom
  • freepatentsonline.com