Working-up: characterised by the use of homopolymers or copolymers of compounds having

Official title: Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Derivatives of such polymers

C08J2339/00 (Working-up: characterised by the use of homopolymers or copolymers of compounds having) appears on 190 US grants and 243 published applications in this corpus.