Dow Global Technolgoies LLC

Rohm & Haas Electronic Materials LLC

Curtis D Modtland

Hua Bai

Christopher P Christenson

Deodatta Vinayak Shenai-Khatkhate

John G Pendergast, Jr

Ravindra S Dixit

Robert A Ware

Artashes Amamchyan

Kenneth M Crouch

Robert F Polcari

Chet D Davidson

Jr John G Pendergast

An apparatus for continuously manufacturing organometallic compounds is provided where the apparatus has a source of a first reactant stream wherein the first reactant comprises a metal; a source of a second reactant stream; a laminar flow contacting zone for cocurrently contacting the first reactant stream and the second reactant stream; a mixing zone comprising a turbulence-promoting device; and a heat transfer zone.

Organometallic compound preparation

A method of purifying crude organometallic compounds using a plurality of distillation columns is provided. This method effectively removes both relatively more volatile impurities and relatively less volatile impurities as compared to the organometallic compound.

Organometallic compound purification

A method of continuously manufacturing organometallic compounds is provided where two or more reactants are conveyed to a reactor having a laminar flow contacting zone, a heat transfer zone, and a mixing zone having a turbulence-promoting device; and causing the reactants to form the organometallic compound.

A method of continuously manufacturing an organometallic compound is provided where two or more reactants are conveyed to a contacting zone of a reactor in a manner so as to maintain a laminar flow of the reactants; and causing the reactants to form the organometallic compound.

A method of purifying crude organometallic compounds using a stripping column and a gas stream is provided. This method removes relatively more volatile impurities as compared to the organometallic compound.

Organometallic compound purification and apparatus

The present disclosure relates to bearings, for example, an improved journal bearing. A bushing () for use with a journal bearing () includes: a cylindricarinterior defining an interior bearing surface (); a longitudinal axis () and an internal diameter (ID); a groove region of the interior bearing surface () having a length H along the longitudinal axis; and a set of grooves () in the grooved region of the interior bearing surface (), where N is the number of grooves in the set of grooves (). Each groove is disposed at a helix angle (&#x3b8;) offset from the longitudinal axis () of the bushing (). The helix angle is approximately equivalent to the following equation: tangent (&#x3b8;)=(&#x3c0;&#xd7;ID)/(N&#xd7;H).

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Lake Jackson, TX, United States of America

Curtis D Modtland