organometallic complex and an aluminum phosphate support the complex comprises a group 3 to 10 transition metal and an indenoindolyl ligand that is bonded to the transition metal the use of the aluminum phosphate support in combination with the indenoindolyl complex provides an unexpected boost in catalyst activity when compared with other common supports when a combination of olefins is used good comonomer incorporation is obtained application_number US 61182703 A description the invention is an olefin polymerization process the process enables good catalyst activity suitable olefins for the polymerization are c 2 u2013 c 20 u03b1 olefins such as ethylene propylene 1 butene 1 hexene and 1 octene cyclic olefins such as cyclohexene and nonconjugated dienes such as ethylidene norbornene and mixtures thereof preferred olefins are ethylene propylene and mixtures thereof with u03b1 olefins such as 1 butene 1 hexene and 1 octene more preferably ethylene is copolymerized with a c 3 u2013 c 20 u03b1 olefin most preferably ethylene is copolymerized with 1 butene 1 hexene or 1 octene optionally hydrogen is used in the polymerization to regulate the molecular weight the amount of hydrogen needed depends upon the desired polyolefin molecular weight and flow generally as the amount of hydrogen is increased the polyolefin molecular weight decreases and the flow increases for many applications the polyolefin flow will be too low if the polymerization is done in the absence of hydrogen suitable activators include alumoxanes alkyl aluminums alkyl aluminum halides anionic compounds of boron or aluminum trialkylboron and triarylboron compounds examples include methyl alumoxane mao polymeric mao pmao ethyl alumoxane diisobutyl alumoxane triethylaluminum diethyl aluminum chloride trimethylaluminum triisobutylaluminum lithium tetrakis pentafluorophenyl borate lithium tetrakis pentafluorophenyl aluminate dimethylanilinium tetrakis pentaflourophenyl borate trityl tetrakis pentafluorophenyl borate tris pentafluorophenyl borane triphenylborane tri n octylborane the like and mixtures thereof selection of.