1
David H McConville, Matthew W Holtcamp, Donald R Loveday: Catalyst systems and their use in a polymerization process. Univation Technologies, Jaimes Sher, Lisa Kimes Jones, April 30, 2002: US06380328 (78 worldwide citation)

The present invention relates to mixed catalyst system of a Group 15 containing metal catalyst compound, a bulky ligand metallocene-type catalyst compound, and a Lewis acid aluminum containing activator and to a supported version thereof and for their use in a process for polymerizing olefin(s).


2
Matthew W Holtcamp: Nitrogen-containing group 13 anionic complexes for olefin polymerization. Univation Technologies, Jaimes Sher, Lisa Kimes Jones, November 14, 2000: US06147173 (52 worldwide citation)

This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with a Group 13 element ...


3
Matthew W Holtcamp: Nitrogen-containing group 13 anionic complexes for olefin polymerization. Univation Technologies LLD, Jaimes Sher, Lisa Kimes Jones, April 3, 2001: US06211105 (45 worldwide citation)

This description addresses a process for the preparation of polyolefins from one or more olefinic monomers comprising combining said olefins under olefin polymerization conditions with an organometallic catalyst compound that is activated for olefin polymerization by reaction with a Group 13 element ...


4
David H McConville, Matthew W Holtcamp: Catalyst system and its use in a polymerization process. Univation Technologies, Jaimes Sher, Lisa Kimes Jones, July 24, 2001: US06265505 (43 worldwide citation)

The present invention relates to a catalyst system of a Group 15 containing metal catalyst compound and a Lewis acid aluminum containing activator and to a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.


5
Matthew W Holtcamp, Ching Tai Lue: Catalyst compositions and method of polymerization therewith. Univation Technologies, Jaimes Sher, July 16, 2002: US06420580 (39 worldwide citation)

Catalyst compositions, systems and methods, useful in polymerization processes, are disclosed, which utilize bridged metallocene catalysts, preferably including indenyl groups, bound to the transition metal and a vinyl group bound to the bridge.


6
Matthew W Holtcamp: Trialkylaluminum treated supports. Exxonmobil Chemical Patents, Catherine L Bell, June 10, 2008: US07385015 (31 worldwide citation)

This invention relates to a process to prepare a trialkylaluminum treated support comprising: 1) combining a support with first trialkylaluminum compound(s), where the alkyl groups have at least 2 carbon atoms; then 2) calcining the combination of the support and the trialkylaluminum compound(s); th ...


7
Matthew W Holtcamp: Catalyst system and its use in a polymerization process. Univation Technologies, Lisa Kimes Jones, December 17, 2002: US06495484 (29 worldwide citation)

Disclosed are polymerization catalyst activator compositions which include a carbonium cation and an aluminum containing anion. These activator compositions are prepared by combining a carbonium or trityl source and with an aluminum containing complex, preferably a perfluorophenylaluminum compound. ...


8
Matthew W Holtcamp: Catalyst system and its use in a polymerization process. Univation Technologies, Lisa Kimes Jones, Kevin M Faulkner, April 20, 2004: US06723808 (29 worldwide citation)

Disclosed are polymerization catalyst activator compositions which include a carbonium cation and an aluminum containing anion. These activator compositions are prepared by combining a carbonium or trityl source and with an aluminum containing complex, preferably a perfluorophenylaluminum compound. ...


9
David H McConville, Matthew W Holtcamp, Donald R Loveday: Catalyst systems and their use in a polymerization process. Univation Technologies, Jaimes Sher, Lisa Kimes Jones, Kevin M Faulkner, September 16, 2003: US06620757 (28 worldwide citation)

The present invention relates to mixed catalyst system of a Group 15 containing metal catalyst compound, a bulky ligand metallocene-type catalyst compound, and a Lewis acid aluminum containing activator and to a supported version thereof and for their use in a process for polymerizing olefin(s).


10
Matthew W Holtcamp: Activated catalyst systems from substituted dialuminoxane complexes. Univation Technologies, Kevin M Fulkner, October 25, 2005: US06958306 (28 worldwide citation)

A catalyst composition and method for preparing a supported catalyst system for olefin polymerization is provided. In one aspect, the catalyst composition includes a reaction product of a dialuminoxane and a halogen substituted aryl borane, wherein the reaction takes place on a support and at condit ...