Purification of polyolefins

Claim 1

IN THE PURIFICATION OF A POLYOLEFIN WHICH HAS BEEN PREPARED IN AN INERT ORGANIC DILLUENT IN THE PRESENCE OF A CATALYST COMPRISING A COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF THE METALS OF GROUP IV-B AND V-B OF THEPERIODIC TABLE IN COMBINATION WITH AN ORGANOMETALLIC COMPOUND OF A METAL OF GROUP III-A OF THE PERIODIC TABLE WHEREIN THE POLYMER IS CONTACTED WITH WATER, THE IMPROVEMENT WHICH COMPRISES EFFECTING SAID CONTACT IN THE PRESENCE OF A WETTING AGENT SELECTED FROM THE CLASS CONSISTING OF (A) HOMOPOLYMERS OF AN N-VINYL AMIDE HAVING THE FORMULA CH2=CH-N(-R1)-CO-H WHERE R IS SELECTED FROM THE CLASS CONSISTING OF HYDROGEN, ALKYL, OXALKYL, ALKYLARYL AND ARYL RADICALS AND R1 IS SECLECTED FROM THE CLASS CONSISTING OF R AND ACYL RADICALS, (B) COPOLYMERS OF SUCH N-VINYL AMIDES WITH EHYLENICALLY UNSATURATED COMONOMERS, (C) WATER SOLUBLE POLYMERS OF N-VINYL LACTAMS, AND (D) WATER SOLUBLE COPOLYMERS OF SUCH N-VINYL LACTANS WITH ETHYLENICALLY UNSATURATED C0MONOMERS.