Abstract:
AN IMPROVED METHOD OF PREPARING A SUPPORTED CATAYST AND PROCESS FOR THE USE THEREOF FOR POLYMERIZATION OF ETHYLENE, TERMINAL OLEFINS OR A MIXTURE THEREOF THAT GIVES HIGH POLYMER YIELDS AND IMPROVED MOLECULAR WEIGHT CONTROL WHEN USED IN CONJUCTION WITH CHAIN TERMINATING AENTS WHICH COMPRISES CONTACTING SAID OLEFIN OR SAID MIXTURE WITH (A) A GROUP IV-B OR GROUP V-B TRANSITION METAL COMPOUND IN COMBINATION WITH A SUPPORT MATERIAL WHICH IS THE REACTION PRODUCT OF AN ALUMINUM HALIDE AND A GROUP II-1, II-B OR VII-B HYDROXYHAIDE, ALKOXIDE, HYDROXIDE-ALKOXIDE, HYDROUS OXIDE, HYDRATED OXIDE OR HYDROXIDE AND (B) A ORGANOALUMINUM COMPOUND.
Abstract:
CHROMYL BIS(TRIORGANOTITANATES) AND RELATED COMPOSITIONS ARE PREPARED FROM A CHROMIUM OXIDE AND AN ORGANOTITANIUM COMPOUND AND, WHEN COMBINED WITH AN ORGANOALUMINUM COMPOUND, ARE USEFUL FOR THE POLYMERIZATION OF OLEFINS.