Exxonmobil Technology and Engineering Company

Christian E Padilla

Suzzy C H Ho

Aaron Sattler

Michele L Paccagnini

The present disclosure provides base stocks and or diesel fuel, and processes for producing such base stocks and or diesel fuel by polymerizing alpha-olefins and internal olefins. The present disclosure further provides polyolefin products useful as base stocks and or diesel fuel. In at least one embodiment, a process includes: i) introducing, neat or in the presence of a solvent, a feed comprising a branched C-Cinternal olefin, with a catalyst compound comprising a group 8, 9, 10, or 11 transition metal and at least one heteroatom and ii) obtaining a C-Cpolyolefin product having one olefin, a methylene content of from about 1 wt % to about 98 wt %, and or a methyl content of from about 1 wt % to about 75 wt %. The feed may further include a linear C-Cinternal olefin, a C-Calpha-olefin, or a mixture thereof.

Processes for polymerizing alpha-olefins, internal olefins and compositions thereof

The present disclosure provides base stocks and processes for producing such basestocks by polymerizing internal olefins. The present disclosure further provides base stocks, comprising low molecular weight polyolefin products, having one or more of improved flow, low temperature properties, and thickening efficiency. The present disclosure further provides polyolefin products useful as base stocks and or diesel fuel. In at least one embodiment, a process includes introducing a feedstream comprising C-Cinternal-olefins with a catalyst system comprising a nickel diimine catalyst optionally in the presence of a solvent. The method includes obtaining a C-Cpolyolefin product having one or more of a carbon fraction of epsilon-carbons of from about 0.08 to about 0.3, as determined byC NMR spectroscopy, based on the total carbon content of the polyolefin product.

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Mountain View, CA, United States of America

Christian E Padilla