Exxonmobil Chemical Patents Inc.

Tel Aviv University

Meagan E Evans

David A Cano

Moshe Kol

Matthew William Holtcamp

Gregory S Day

Crisita Carmen H Atienza

Konstantin Press

John Robert Hagadorn

Jo Ann M Canich

Stephen Zushma

Christine A Costello

Patrick C Chen

Christopher M Evans

Madhavi Vadlamudi

Ayellet Stopper

Eric D Whetmore

A process for producing alpha-olefin dimers comprises contacting, at a temperature of 80&#xb0; C. or more, a feedstock comprising at least one C(linear) alpha-olefin with a catalyst system comprising activator and one or more catalyst compounds represented by the formula: where M is a Group 4 metal; n is 1, 2, or 3; Ris hydrogen or a Cto Calkyl; each of R, R, R, R, R, R, R, and Ris independently selected from hydrogen and Cto Calkyl; each X is independently selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halides, and a combination thereof, (two X's may form a part of a fused ring or a ring system), the contacting being conducted under conditions effective to oligomerize at least part of Calpha-olefin to produce an oligomerized product containing at least 30 wt % of the alpha-olefin dimer and at least 80 mol % of vinylidene unsaturation, where the conversion of the alpha olefin is at least 10 wt %, based upon the weight of the alpha olefin monomer entering the reactor and the weight of dimer produced.

Production of olefin dimers

Catalyst compounds and catalyst systems including an asymmetric Salan ligands having a fluorenyl moiety are disclosed. Methods of preparing such catalyst compounds and catalyst systems, polymerization processes using such catalysts systems and olefin polymers prepared according to such processes using the catalysts systems are described.

Asymmetric fluorenyl-substituted salan catalysts

Plasticizers of indane and or tetralin esters and blends thereof with thermoplastic polymers, such as PVC, are disclosed.

Indane and/or tetralin ester plasticizers, and blends therefrom

A cyclopentadienyl-substituted Salan catalyst, a catalyst system comprising an activator and the cyclopentadienyl-substituted Salan catalyst, a process comprising contacting one or more olefins with the catalyst system, and polymers produced by the process are disclosed herein.

Cyclopentadienyl-substituted salan catalysts

Catalysts comprising thio-salalen ligands. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.

Thio-salalen catalyst

Catalysts comprising Salan ligands with bridged or unbridged diphenyl amine moieties. Also, catalyst systems comprising the catalyst and an activator; methods to prepare the ligands, catalysts and catalyst systems; processes to polymerize olefins using the catalysts and/or catalyst systems; and the olefin polymers prepared according to the processes.

Diphenylamine salan catalyst

Growing community of inventors

Houston, TX, United States of America

Meagan E Evans