Process for the oligomerization of .alpha.-olefins having low unsaturation, the resulting polymers, and lubricants containing same

Abstract From the Canadian patent

A process for the preparation of a poly(.alpha.-olefin) copolymer is disclosed wherein the process comprises polymerizing at least one .alpha.-olefin preferably 1-decene, and at least one bulky olefin preferably norbornene, in , the presence of hydrogen and a catalytically effective amount of catalyst comprising the product obtained by combining a metallocene procatalyst with a cocatalyst, the metallocene procatalyst being at least one compound of general formula: (CP1R1m)R3(Cp2R2p)MXq wherein Cp1 of ligand (Cp1R1m) and Cp2 of ligand (Cp2R2p) are the same or different cyclopentadienyl rings R1 and R2 , each is, independently, hydrogen or a hydrocarbyl halocarbyl, heterocarbyl, …