1
James C Stevens, David R Neithamer: Metal complex compounds. The Dow Chemical Company, Douglas N Delime, November 12, 1991: US05064802 (464 worldwide citation)

A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula:


2
James C Stevens, David R Neithamer: Metal complex compounds. The Dow Chemical Company, Douglas N Deline, July 21, 1992: US05132380 (232 worldwide citation)

A monocyclopentadienyl or substituted monocyclopentadienyl metal complex containing compound useful as a polymerization catalyst corresponding to the formula:


3
David R Neithamer, James C Stevens: Process for preparation of monocyclopentadienyl metal complex compounds and method of use. The Dow Chemical Company, September 27, 1994: US05350723 (146 worldwide citation)

Cationic Group 4 or Lanthanide metal catalysts containing a single, delocalized n-bonded group are prepared by contacting a metal complex with a carbonium salt of a compatible, non-coordinating anion.


4
David D Devore, David R Neithamer, Robert E LaPointe, Robert D Mussell: Silylium cationic polymerization activators for metallocene complexes. The Dow Chemical Company, April 29, 1997: US05625087 (78 worldwide citation)

Catalyst systems useful in addition polymerization reactions comprising a Group 4 metal complex and a silylium salt activating cocatalyst are prepared by contacting the metal complex with a silylium salt of a compatible, non-coordinating anion, optionally the silylium salt is prepared by electrochem ...


5
David R Wilson, Peter N Nickias, David R Neithamer, Richard D Ernst: Metal complexes containing bridged, non-aromatic, anionic, dienyl groups and addition polymerization catalysts therefrom. The Dow Chemical Company, The University of Utah, March 7, 2000: US06034021 (75 worldwide citation)

Catalytic derivatives of novel Group 4 metal complexes wherein the metal is in the +2, +3, or +4 formal oxidation state containing two ligand groups bound by .pi.-electrons, at least one of which is a cyclic or noncyclic, non-aromatic, anionic, dienyl ligand group and having a bridged ligand structu ...


6
Edmund M Carnahan, Michael J Carney, David R Neithamer, Peter N Nickias, Keng Yu Shih, Lee Spencer: Supported catalyst containing tethered cation forming activator. The Dow Chemical Company, W R Grace & Co Conn, July 11, 2000: US06087293 (40 worldwide citation)

A support for use in preparing supported catalysts for addition polymerizations comprising the reaction product of: (A) an inorganic oxide material comprising reactive surface hydroxyl groups, at least some of said hydroxyl groups optionally having been functionalized an converted to a reactive sila ...


7
David R Neithamer, James C Stevens: Process for preparation of monocyclopentadienyl metal complex compounds and method of use. The Dow Chemical Company, March 21, 1995: US05399635 (34 worldwide citation)

Cationic Group 4 or Lanthanide metal catalysts containing a single, delocalized .pi.-bonded group are prepared by contacting a metal complex with a carbonium salt of a compatible, non-coordinating anion.


8
David R Wilson, David R Neithamer, Peter N Nickias, W Jack Kruper Jr: Metal (III) complexes containing conjugated, non-aromatic anionic II-bound groups and addition polymerization catalysts therefrom. The Dow Chemical Company, February 27, 1996: US05495036 (19 worldwide citation)

Novel Group 4, Group 3 or Lanthanide metal complexes wherein the metal is in the +3 formal oxidation state containing a cyclic or non-cyclic, nonaromatic, anionic, dienyl ligand group bound to M and having a bridged ligand structure, catalytic derivatives of such complexes; and the use thereof as ca ...


9
David D Devore, Francis J Timmers, David R Neithamer: Boratabenzene cocatalyst with metallocene catalyst. The Dow Chemical Company, July 3, 2001: US06255246 (17 worldwide citation)

Boratabenzene cocatalysts, especially novel pentafluorophenyl boratabenzenes, are useful cocatalysts or activators with metallocenes. They are less expensive than prior art activators, are soluble and offer more irreversible reactions. Compositions comprise at least one metallocene catalyst and at l ...


10
David R Neithamer: Catalyst system comprising amine or phosphine adducts of tris(organyl)borane compounds. The Dow Chemical Company, February 24, 1998: US05721183 (16 worldwide citation)

Compositions of matter useful as addition polymerization catalysts comprising a Group 4 metal complex and an adduct of tris(organyl)borane compound with a non-tertiary amine or non-tertiary phosphine compound.