Patent ID: 8481665

Claim:
A branched polyethylene copolymer formed by a process comprising: supplying ethylene monomer; supplying hexene monomer; forming butene in situ and copolymerizing the ethylene monomer, the hexene monomer and the butene monomer formed in situ in a reaction medium which comprises a solution or slurry with a catalyst system comprising: a metallocene compound of general formula Ind 2 R″MQ 2 having a mole ratio of meso to racemic forms of the metallocene of at least 1:3, wherein each Ind is the same or different and is indenyl or substituted indenyl, R″ is a bridge that is substituted or unsubstituted and comprises a C 1 to C 4 alkylene radical, a dialkyl germanium or silicon or siloxane, alkyl phosphine or amine, M is a Group IV metal or vanadium, each Q is a hydrocarbyl having 1 to 20 carbon atoms or a halogen, said catalyst being further comprised of an inert support; and using a cocatalyst which activates the metallocene compound; wherein the shear ratio of the copolymer is between 35 and 60.