Separation of solid polymer from solid catalyst by halogenation and solubilization of polymer

Claim 1

A PROCESS FOR THE SEPARATION OF SOLID, HIGH DENSITY, HIGHLY CRYSTALLINE POLYMERS OF 1-OLEFINS HAVING A MAXIMUM OF 8 CARBON ATOMS PER MOLECULE AND NO BRANCHING NEARER THE DOUBLE BOND THAN THE 4-POSITION FROM THE INTIMATELY ASSOCIATED SOLID CATALYST USED TO POLYMERIZE THE MONOMER WHICH COMPRISES DISPERSING SAID POLYMER-CATALYST SOLID IN A HALOGENATED HYDROCARBON LIQUID IN WHICH SAID POLYMER AND CATALYST ARE SUBSTANTIALLY NON-SOLUBLE IN THE TEMPERATURE RANGE USED FOR HALOGENATING SAID POLYMER BUT IN WHICH THE HALOGENATED PRODUCT OF SAID POLYMER IS SOLUBLE IN SAID TEMPERATURE RANGE, CONTACTING SAID DISPERSION WITH A HALOGENATING AGENT PROVIDING A HALOGEN SELECTED FROM THE GROUP CONSISTING OF BROMINE AND CHLORINE AT A PRESSURE SUFFICIENT TO MAINTAIN SAID LIQUID SUBSTANTIALLY IN LIQUID PHASE, SEPARATING THE RESULTING HALOGENATED POLYMER SOLUTION FROM THE CATALYST SOLIDS AND RECOVERING HALOGENATED POLYMER PRODUCT.