Polyolefins treated with the zinc salt of a monocarboxylic acid

Claim 1

IN A PROCESS FOR PREPARING A CRYSTALLINE POLYMER OF A LOWER ALPHA OLEFIN BY POLYMERIZING SAID ALPHA OLEFIN IN THE PRESENCE OF A TRANSITION METAL-CONTAINING CATALYST WHEREIN THE CATALYST IS DEACTIVATED WITH A LOWER MOLECULAR WEIGHT SATURATED MONOHYDRIC ALCOHOL WHICH IS SEPARATED TO LEAVE A WET POLYMER WHICH IS SUBSEQUENTLY DRIED AND WHEREIN THE POLYMER IS MIXED AT ROOM TEMPERATURE WITH A ZINC SALT OF A MONO-CARBOXYLIC ACID HAVING 1 TO 12 CARBON ATOMS AND AT LEAST ONE OXIDATION STABILIZING COMPOUND, AN IMPROVEMENT WHICH COMPRISES THOROUGHLY ADMIXING AT ROOM TEMPERATURE 0.01 TO ABOUT 1 WT. PERCENT OF THE ZINC SALT WITH THE ALCOHOL-WET POLYMER CONTAINING AT LEAST A TRACE OF RESIDUAL CATALYST PRIOR TO ADDING THE OXIDATION STABILIZING COMPOUND AND RECOVERING A STABILIZED POLYOLEFIN HAVING GOOD COLOR.