About: http://webisa.webdatacommons.org/23614274

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	It is possible to use mixtures of the above-mentioned compounds containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of from 500 to 10,000, for example mixtures of polyethers and polyesters.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com