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David R Neithamer

from Midland, MI
Age ~62
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Also known as:
David Reed Neithamer, David Etal Neithamer, David D Neithamer, Dave R Neithamer, David R Neithaner, David Neithamer Reed
Phone and address:
2607 E Whippoorwill Holw, Midland, MI 48642
(989) 839-2140
Related to:
Kimberly A Kuchta, 60Martin T Reder, 55Maryssa M Kuchta, 33Martin T Reder, 85Courtney N Kuchta, 32Kyle Neithamer, 35Courtney N Kuchta, 37Elizabeth M Neithamer, 62Richard J Kuchta, 61Amanda K Diebold, 49
Connected to:
Richard P Neithamer, 72Adrienne E Neithardt, 53Elizabeth Neithardt, 39Jane E Neithardt, 62David J Neithercut, 68Donna M Neithercut, 65Janiene Neither, 55Abby Neitlich, 43Bryan J Neitz, 49Jeffrey A Neitz, 67

David Neithamer Phones & Addresses

  • 2607 E Whippoorwill Holw, Midland, MI 48642 (989) 839-2140
  • 6007 Sturgeon Creek Pkwy, Midland, MI 48640
  • Marion, AR
  • Chesterfield, MI
  • Royal Oak, MI
  • Concord, CA
  • Orange Pk, FL
  • Ithaca, NY
  • 2607 E Whippoorwill Holw, Midland, MI 48642

Work

Company: The dow chemical company Jun 1989 to Mar 2018 Position: Principle research scientist

Education

Degree: Doctorates, Doctor of Philosophy School / High School: Cornell University 1984 to 1989 Specialities: Philosophy

Industries

Chemicals

Resumes

Resumes

David Neithamer Photo 1

David Neithamer

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Location:
2607 east Whippoorwill Holw, Midland, MI 48642
Industry:
Chemicals
Work:
The Dow Chemical Company Jun 1989 - Mar 2018
Principle Research Scientist
Education:
Cornell University 1984 - 1989
Doctorates, Doctor of Philosophy, Philosophy

Publications

Us Patents

Zwitterionic Catalyst Activator

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US Patent:
6344529, Feb 5, 2002
Filed:
Dec 6, 1999
Appl. No.:
09/445209
Inventors:
Edmund M. Carnahan - Fresno TX
Grant B. Jacobsen - Houston TX
Jerzy Klosin - Midland MI
Peter N. Nickias - Midland MI
David J. Schwartz - Lake Jackson TX
David R. Neithamer - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C08F 452
US Classification:
526134, 502103, 502117, 502155, 502202, 526159, 526160, 526163, 526198, 526172, 556 7, 556 87, 556402, 556170, 556172, 564 8, 564281, 564282, 568 1, 568 2, 568 8
Abstract:
Disclosed are compounds useful as catalyst activators for olefin polymerization, comprising structures of the following formulae: wherein: L is a protonated derivative of an element of Group 15 of the Periodic Table of the Elements, additionally bearing two hydrocarbyl substituents of from 1 to 50 carbons each, or a positively charged derivative of an element of Group 14 of the Periodic Table of the Elements, said Group 14 element being substituted with three hydrocarbyl substituents of from 1 to 50 carbons each; R is a divalent linking group of from 1 to 40 non-hydrogen atoms; R independently each occurrence is a ligand group of from 1 to 50 nonhydrogen atoms with the proviso that in a sufficient number of occurrences to balance charge in the compound, R is L âR â; M is boron, aluminum or gallium; Ar independently each occurrence is a monovalent, fluorinated organic group containing from 6 to 100 non-hydrogen atoms; Y is a Group 15 element; and Z is a Group 14 element.

Boratabenzene Cocatalyst With Metallocene Catalyst

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US Patent:
6365779, Apr 2, 2002
Filed:
Feb 20, 2001
Appl. No.:
09/789411
Inventors:
David D. Devore - Midland MI
Francis J. Timmers - Midland MI
David R. Neithamer - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07F 502
US Classification:
568 1
Abstract:
Fluorohydrocarbyl substituted boratabenzene compounds, especially perfluorophenyl substituted boratabenzene compounds, are useful olefin polymerization cocatalysts with metallocenes.

Biscyclopentadienyl Diene Complexes

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US Patent:
6465384, Oct 15, 2002
Filed:
Jun 7, 1995
Appl. No.:
08/481791
Inventors:
Francis J. Timmers - Midland MI
James C. Stevens - Richmond TX
David D. Devore - Midland MI
Robert K. Rosen - Sugarland TX
Jasson T. Patton - Midland MI
David R. Neithamer - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
B01J 3100
US Classification:
502152, 502103, 502117, 502104, 556 11, 556 53, 526160, 526943
Abstract:
Biscyclopentadienyl, Group 4 transition metal complexes formed with conjugated dienes wherein the diene is bound to the transition metal either in the form of a -complex or a -complex in combination with strong Lewis acids, Bronsted acid salts, carbenium ion salts, salts containing a cationic oxidizing agent, or subjected to bulk electrolysis in the presence of compatible, inert non-coordinating anions form catalysts for polymerizing olefins, diolefins and/or acetylenically unsaturated monomers.

Expanded Anionic Compounds Comprising Hydroxyl Or Quiescent Reactive Functionality And Catalyst Activators Therefrom

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US Patent:
6627573, Sep 30, 2003
Filed:
Jul 12, 2001
Appl. No.:
09/904422
Inventors:
David A. Babb - Lake Jackson TX
David R. Neithamer - Midland MI
Grant B. Jacobsen - Houston TX
Edmund M. Carnahan - Fresno TX
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
B01J 3000
US Classification:
502150, 502164, 502202, 502414, 526134, 548101, 548110
Abstract:
A compound useful as a cocatalyst or cocatalyst component, especially for use as an addition polymerization catalyst compound, corresponding to the formula: wherein: A* is a cation of from 1 to 80, preferably 1 to 60 atoms, not counting hydrogen atoms, said A* having a charge +a, Z* is an anion group of from 1 to 50, preferably 1 to 30 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites; J* independently each occurrence is a Lewis acid of from 1 to 80, preferably 1 to 60 atoms, not counting hydrogen atoms, coordinated to at least one Lewis base site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality, j is a number from 2 to 12 and a, b, c, and d are integers from 1 to 3, with the proviso that aÃb is equal to cÃd, and provided further that one or more of A*, Z* or J* comprises a hydroxyl group or a polar group containing quiescent reactive functionality.

Supported Catalyst Comprising Expanded Anions

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US Patent:
6716786, Apr 6, 2004
Filed:
Aug 3, 2000
Appl. No.:
09/631654
Inventors:
Grant B. Jacobsen - Houston TX
David D. Devore - Midland MI
Robert E. LaPointe - Midland MI
David R. Neithamer - Midland MI
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
B01J 3100
US Classification:
502103, 502117, 502155, 502167, 526134, 526160, 526165, 526943
Abstract:
A composition useful as an addition polymerization catalyst comprising: A) an inert support; B) a Group 3-10 or Lanthanide metal complex; and C) an activator compound capable of causing the metal complex B) to form an active polymerization catalyst, said compound corresponding to the formula: âwherein: A* is a cation of charge +a, Z* is an anion group of from 1 to 50, preferably 1 to 30 atoms, not counting hydrogen atoms, further containing two or more Lewis base sites; J* independently each occurrence is a Lewis acid coordinated to at least one Lewis base-site of Z*, and optionally two or more such J* groups may be joined together in a moiety having multiple Lewis acidic functionality, j is a number from 2 to 12 and a, b, c, and d are integers from 1 to 3, with the proviso that aÃb is equal to cÃd.

Metal Complex Compounds

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US Patent:
6825369, Nov 30, 2004
Filed:
Mar 10, 1994
Appl. No.:
08/209689
Inventors:
James C. Stevens - Midland MI
David R. Neithamer - Concord CA
Assignee:
The Dow Chemical Company - Midland MI
International Classification:
C07F 700
US Classification:
556 7, 556 8, 556 10, 556 11, 556 19, 556 52
Abstract:
A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula: wherein: Cp is an -substituted cyclopentadienyl group optionally covalently bonded to M through a substituent, said Cp being substituted in at least one occurrence with an alkoxy or aryloxy group; M is a metal of Group 3-10 or the Lanthanide Series of the Periodic Table bound in an hu 5 bonding mode to the cyclopentadienyl or substituted cyclopentadienyl group; X each occurrence independently is selected from the group consisting of hydride, halo, alkyl, aryl, silyl, germyl, aryloxy, alkoxy, amide, siloxy, neutral Lewis base ligands and combinations thereof having up to 20 non-hydrogen atoms, and optionally one X together with Cp forms a metallocycle with M; R is alkyl or aryl of up to 10 carbons; n is one or two depending on the valence of M; and A is a noncoordinating, compatible anion of a Bronsted acid salt.

Bridged Metal Complexes For Gas Phase Polymerizations

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US Patent:
6891005, May 10, 2005
Filed:
Dec 20, 2002
Appl. No.:
10/323975
Inventors:
David D. Devore - Midland MI, US
David R. Neithamer - Midland MI, US
Assignee:
BP Chemicals Limited - London
International Classification:
C08F004/52
US Classification:
526134, 526172, 526161, 526943, 526348
Abstract:
A gas phase olefin polymerization wherein the catalyst comprises a novel Group 4 transition metal complex containing a boron or aluminum bridging group containing a nitrogen containing group, especially an amido group.

Delayed Activity Supported Olefin Polymerization Catalyst Compositions And Method For Making And Using The Same

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US Patent:
7012121, Mar 14, 2006
Filed:
Jul 1, 2004
Appl. No.:
10/880582
Inventors:
Edmund M Carnahan - Fresno TX, US
David R Neithamer - Midland MI, US
Ravi B Shankar - Midland MI, US
Assignee:
BP Chemicals Limited - London
International Classification:
C08F 4/44
C08F 4/06
US Classification:
526134, 526161, 526172
Abstract:
Supported catalyst compositions use for use in the gas-phase polymerization of one or more α-olefins and methods for making and using the same, the catalyst composition including A) an inert support; B) a Group 4–10 metal complex corresponding to the formula: where M is a metal from one of Groups 4 to 10 of the Periodic Table of the Elements in the +2 or +4 formal oxidation state, Cp is a π-bonded anionic ligand group, Z is divalent moiety bound to Cp and bound to M by either covalent or coordinate/covalent bonds and contains boron or a member of Group 14 of the Periodic Table of the Elements, and also nitrogen, phosphorus, sulfur or oxygen, and X is a neutral conjugated diene ligand group having up to 60 atoms, or a dianionic derivative thereof; and C) an ionic cocatalyst capable of converting the metal complex into an active polymerization catalyst represented by the formula:[L*-H][(CF)BCH—O—MRX],wherein L* is a neutral Lewis base, Mis a metal or metalloid selected from Groups 1–14 of the Periodic Table of the Elements, Rindependently each occurrence is a hydrogen or a hydrocarbyl, hydrocarbylsilyl, or hydrocarbysilylhydrocarbyl group having from 1 to 80 nonhydrogen atoms; Xis a halo-substituted hydrocarbyl, hydrocarbylamino-substituted hydrocarbyl, hydrocarbyloxy-substituted hydrocarbyl, hydrocarbylamino, di(hydrocarbyl)amino, hydrocarbyloxy or halide noninterfering group having from 1 to 100 nonhydrogen atoms; x is an integer which ranges from 1 to an integer equal to the valence of M; y is an integer which ranges from 0 to an integer equal to 1 less than the valence of M; and x+y equals the valence of M.
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David R Neithamer from Midland, MI, age ~62 Get Report