1
Stevens James C, Timmers Francis J, Wilson David R, Schmidt Gregory F, Nickias Peter N, Rosen Robert K, Knight George W, Lai Shih Yaw: Constrained geometry addition polymerization catalysts, processes for their preparation, precursors therefor, methods of use, and novel polymers formed therewith.. Dow Chemical, March 13, 1991: EP0416815-A2 (544 worldwide citation)

Metal coordination complexes comprising a metal of Group 3 (except Sc), 4-10 or the lanthanide series and a delocalized PI -bonded moiety have said moiety substituted with a constrain-inducing moiety which reduces the angle at the metal between the centroid of said PI -bonded moiety and at least one ...


2
Lapointe Robert E, Stevens James C, Nickias Peter N, Mcadon Mark H: Homogeneous olefin polymerization catalyst by ligand abstraction with lewis acids.. Dow Chemical, December 30, 1992: EP0520732-A1 (292 worldwide citation)

Addition polymerization catalysts having a limiting charge separated structure corresponding to the formula: LMX XA, wherein: L is a derivative of a substituted delocalized PI -bonded group imparting a constrained geometry to the metal active site and containing up to 50 nonhydrogen atoms; M is a me ...


3
Lapointe Robert E, Rosen Robert K, Nickias Peter N: Process for preparing addition polymerization catalysts via metal center oxidation.. Dow Chemical, July 22, 1992: EP0495375-A2 (159 worldwide citation)

Addition polymerization catalysts comprising a derivative of a Group 4-8 metal compound prepared by metal center oxidation.


4

5
Stevens James C, Nickias Peter N, Timmers Francis J, Rosen Robert K, Wilson David R, Knight George W, Schmidt Gregory F, Lai Shih Yaw: Constrained geometry addition polymerization catalysts, processes for their preparation, precursors therefor, methods of use, and novel polymers formed therewith. Dow Chemical, March 26, 1997: EP0764653-A2 (8 worldwide citation)

Hafnium or zirconium coordination complexes comprise a cyclopentadienyl or substituted cyclopentadienyl group forming part of a ring structure in which the metal is both bonded to an adjacent amidosilane moiety and held in association with the (substituted) cyclopentadienyl moiety. These complexes f ...


6
Lapointe Robert E, Stevens James C, Nickias Peter N, Mcadon Mark H: Catalyseur de la polymerisation dolefine homogene par extraction des acides de lewis, Homogeneous olefin polymerization catalyst by abstraction with lewis acids. The Dow Chemical Company, Dow Global Technologies, SMART & BIGGAR, December 16, 2003: CA2072058 (6 worldwide citation)

Addition polymerization catalysts having a limiting charge separated structure corresponding to the formula: LMX* XA-, wherein: L is a derivative of a substituted delocalized n-bonded group imparting a constrained geometry to the metal active site and containing up to 50 nonhydrogen atoms; M is a me ...


7

8
Rosen Robert K, Nickias Peter N, Devore David D, Stevens James C, Timmers Francis J: Addition polymerization catalysts comprising reduced oxidation state metal complexes.. Dow Chemical, January 11, 1995: EP0632819-A1 (3 worldwide citation)

Addition polymerization catalysts comprising a metal complex containing a Group 4 metal in the +3 oxidation state, a delocalized pi -bonding moiety, and at least one stabilizing ligand, optionally in combination with an activating cocatalyst.


9
Klosin Jerzy, Nickias Peter N: Metal complexes containing bridging heteroatom for olefin-polymerization-process. Dow Chemical, February 13, 2002: EP1178996-A1 (3 worldwide citation)

Metal complexes comprising an oxygen, sulfur, or nitrogen containing bridging group which are useful as catalyst components for the polymerization of olefins.


10
Nickias Peter N, Patton Jasson T: 3-aryl substituted indenyl containing metal complexes and polymerization process. Dow Chemical, October 6, 1999: EP0946574-A1 (3 worldwide citation)

Group 4 metal constrained geometry complexes comprising a 3-aryl-substituted indenyl ligand, catalytic derivatives thereof and their use as olefin polymerization catalysts, especially for preparing interpolymers comprising ethylene and a monovinyl aromatic monomer are disclosed.