In order to apply metallocene catalysts for the polymerization of ethylene
in the commercial "slurry loop process" it is necessary to heterogenize the
homogeneous catalysts and to produce resins with attractive properties. A
solution to these problems is the self-immobilization of omega -alkenyl fun
ctionalized catalysts that can produce polyethylenes with evenly distribute
d ethyl branches in the polymer chain without a comonomer. The new resin is
produced at Chevron Phillips Company, USA, and has the trade name mPact.