Patent ID: 8119747

Claim:
A process of making an ethylene interpolymer, said process comprising: i) contacting one or more olefinic monomers in the presence of at least two catalysts, one having a reactivity ratio r 1 H , and the other a reactivity ratio r 1 L , and ii) effectuating the polymerization of the olefinic monomers in a reactor, to obtain an olefin polymer, and wherein each of r 1 H and r 1 L is from 1 to 200, and r 1 H /r 1 L , is from 0.03 to 30, and/or wherein one catalyst is capable of producing a first polymer, with a high molecular weight (M wH ), from the monomers, under selected polymerization conditions, and the other catalyst is capable of producing a second polymer with, relative to the first polymer, a low molecular weight (M wL ), from the same monomers, under substantially the same polymerization conditions, and wherein M wH /M wL is from 1.5 to 20, and wherein said interpolymer has a Brookfield Viscosity (measured at 149° C./300° F.) from 500 to 7,000 cP, and wherein said interpolymer is a copolymer of ethylene/propylene, ethylene/1-butene, ethylene/4-methyl-1-pentene, ethylene/1-pentene, ethylene/1-hexene or ethylene/1-octene.