Removal of catalyst from olefin polymer by treatment with alcohol under inert atmosphere

Claim 1

THE METHOD OF RECOVERING A HYDROCARBON POLYMER FROM A REACTION MIX PREPARED BY MIXING AN OLEFINIC HYDROCARBON MONOMER WITH A CATALYST MADE BY COMBINING, IN AN INERT HYDROCARBON SOLVENT, AN ALUMINUM ALKYL COMPOUND WITH A TITANIUM TETRAHALIDE, SAID METHOD COMPRISING MIXING SAID REACTION MIX WITH 1 TO 10% OF ITS VOLUME OF AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF METHANOL, ETHANOL, PROPANOL AND ISOPROPANOL AND AGITATING THE RESULTING MIXTURE TO DISTRIBUTE SAID ALCOHOL THROUGHOUT SAID REACTION MIXTURE AND ALLOW SAID CATALYST AND SAID ALCOHOL TO INTERACT, SAID STEP OF MIXING BEING CARRIED OUT PRIOR TO ANY CONTACT OF SAID POLYMER WITH THE ATMOSPHERE AND WHILE CARFULLY EXCLUDING THE SAID ATMOSPHERE, AND THEREAFTER SEPARATING THE SAID POLYMER FROM THE SAID SOLVENT, THE SAID ALCOHOL AND THE PRODUCTS OF THE INTERACTION OF SAID CATALYST AND SAID ALCOHOL.

Claim 2

THE METHOD OF RECOVERING A HYDROCARBON POLYMER FROM A REACTION MIX PREPARED BY MIXING AN OLEFINIC HYDROCARBON MONOMER WITH A CATALYST MADE BY COMBINING, IN AN INERT HYDROCARBON SOLVENT, AN ALUMINUM ALKYL COMPOUND WITH A TITANIUM TETRAHALIDE, SAID METHOD COMPRISING MIXING SAID REACTION MIX WITH 1 TO 10% OF ITS VOLUME OF AN ALCOHOL SELECTED FROM THE CLASS CONSISTING OF METHANOL, ETHANOL, PROPANOL AND ISOPROPANOL AND AGITATING THE RESULTING MIXTURE TO DISTRIBUTE SAID ALCOHOL THROUGHOUT SAID REACTION MIXTURE AND ALLOW SAID CATALYST AND SAID ALCOHOL TO INTERACT, SAID STEP OF MIXING BEING CARRIED OUT PRIOR TO ANY CONTACT OF SAID POLYMER WITH THE ATMOSPHERE AND WHILE CARFULLY EXCLUDING THE SAID ATMOSPHERE, AND THEREAFTER SEPARATING THE SAID POLYMER FROM THE SAID SOLVENT, THE SAID ALCOHOL AND THE PRODUCTS OF THE INTERACTION OF SAID CATALYST AND SAID ALCOHOL.