Chemtura Corporation

Crompton Gmbh

E Brian Fox

Frank J DeBlase

Timothy L Lambert

Jesus R Fabian

Daniel C Knowles

Susan Ferrarotti

Vilan Kosover

Vilen Vilan Kosover

Vilen Kosover

Willie Charles Burton

Willie C Bburton

Frank Deblase

Cyril Andrew Migdal

The invention is directed to polyalphaolefins (PAOs) and processes for forming PAOs. In one embodiment, the invention is to a process for forming a PAO comprising polymerizing C-C&#x3b1;-olefin monomers in the presence of hydrogen, a C-Csaturated hydrocarbon, e.g., a C-Csaturated straight-chain hydrocarbon, and a catalyst system in a reaction vessel, wherein the C-Csaturated straight-chain hydrocarbon has about the same number of carbon atoms as the C-C&#x3b1;-olefin monomers. The C-Csaturated straight-chain hydrocarbon optionally is derived from a crude PAO product formed by the process of the invention. The invention is also directed to reaction systems for performing the processes of the invention, to processes for controlling PAO viscosity based on residence time, and to the removal of spent catalyst using a solid adsorbent particles.

Polyalphaolefins and processes for forming polyalphaolefins

The invention relates to a process for forming a polyalphaolefin, the process comprising the step of polymerizing at least one C-Cmonomer, preferably a decene such as 1-decene, in the presence of an aluminoxane, an activator and a metallocene to form the polyalphaolefin, wherein the molar ratio of the aluminoxane to the metallocene is less than 250:1. The invention also relates to a process for forming a polyalphaolefin having a desired kinematic viscosity from at least one monomer in the presence of an aluminoxane, an organoboron compound and a metallocene. The process comprises the steps of, inter alia, providing a correlation between (i) the molar ratio of the aluminoxane to at least one of the organoboron compound and the metallocene, and (ii) the kinematic viscosity of the polyalphaolefin to form polyalphaolefins having predictable viscosities.

Processes for controlling the viscosity of polyalphaolefins

The invention relates to a polyalphaolefin formed from a decene and propene and having a branch level greater than 19% and to a process for forming such polyalphaolefins. The invention also relates to a process for forming a polyalphaolefin from at least two monomers, the two monomers comprising a decene and propene, the process comprising the steps of, inter alia, providing a correlation between the total amount of propene used to form the polyalphaolefin and at least one of branch level or viscosity of the polyalphaolefin to make polyalphaolefins comprising decene and propene with predictable branch levels and viscosities.

Controlling branch level and viscosity of polyalphaolefins with propene addition

A method for purifying hydroxyalkyl amide of residual alkanolamine by using nonpolar solvent, an acidic pH, salt solutions and an elevated temperature.

Method of purifying hydroxyalkyl amide

A method for reacting alkanolamine with ester in the presence of a metal silicate compound and, optionally, a catalyst, to produce a hydroxyalkyl amide composition with a decreased level of alkanolamine and residual catalyst.

Method of making hydroxyalkyl amide containing reduced level of unreacted alkanolamine

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Monroe, CT, United States of America

E Brian Fox