11
Max P McDaniel, Kathy S Collins, Gil R Hawley, Michael D Jensen, Elizabeth A Benham, Anthony P Eaton, Joel L Martin, Christopher E Wittner: Organometal compound catalyst. Phillips Petroleum Company, Kilpatrick Stockton, April 15, 2003: US06548442 (156 worldwide citation)

This invention is directed to an organometal compound catalyst that is useful for polymerizing at least one monomer to produce a polymer. The catalyst is produced by combining a titanium, zirconium or hafnium organometal compound, preferably a metallocene, at least one organoaluminum compound, and a ...


12

13
Max P McDaniel, Kathy S Collins, Elizabeth A Benham, Anthony P Eaton, Michael D Jensen, Joel L Martin, Gil R Hawley: Organometal catalyst compositions with solid oxide supports treated with fluorine and boron. Phillips Petroleum Company, Kilpatrick Stockton, September 2, 2003: US06613712 (150 worldwide citation)

The invention provides for compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein the composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted solid oxide compound treated with boron and fluo ...


14
Max P McDaniel, Joseph S Shveima, James L Smith, Kathy S Collins, Elizabeth A Benham, Anthony P Eaton, Michael D Jensen, Joel L Martin, Gil R Hawley: Organometal catalyst compositions. Phillips Petroleum Company, Kilpatrick Stockton, October 14, 2003: US06632894 (144 worldwide citation)

This invention provides oxide matrix compositions that can be utilized in catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. The oxide matrix composition comprises residual mineral components and an oxide precursor. The catalyst composition comprises co ...


15
Max P McDaniel, Marvin M Johnson, Bruce B Randolph, Kathy S Collins, Elizabeth A Benham, Michael D Jensen, Joel L Martin, Gil R Hawley: Organometal catalyst composition. Phillips Petroleum Company, Kilpatrick Stockton, June 10, 2003: US06576583 (136 worldwide citation)

This invention provides a process for producing a catalyst composition comprising contacting at least one group 4 metallocene, at least one organoaluminum compound, and at least one solid. The solid is selected from the group consisting of titanium tetrafluoride, zirconium tetrafluoride, and a treat ...


16
Helmut G Alt, Syriac J Palackal, Konstantinos Patsidis, M Bruce Welch, Rolf L Geerts, Eric T Hsieh, Max P McDaniel, Gil R Hawley, Paul D Smith: Organometallic fluorenyl compounds, preparation, and use. Phillips Petroleum Company, Edward L Bowman, July 25, 1995: US05436305 (105 worldwide citation)

Fluorenyl-containing metallocenes are disclosed along with methods for making the metallocenes. Also disclosed are methods for using the metallocenes as polymerization catalysts. In addition, polymers resulting from such polymerizations are disclosed.


17
M Bruce Welch, Helmut G Alt, Bernd Peifer, Syriac J Palackal, Gary L Glass, Ted M Pettijohn, Gil R Hawley, Darryl R Fahey: Method for making and using a supported metallocene catalyst system. Phillips Petroleum Company, Edward L Bowman, March 12, 1996: US05498581 (104 worldwide citation)

Methods are disclosed for preparing a highly active solid metallocene-containing catalyst system and its use in the polymerization of olefins. The catalyst system is prepared by creating a catalyst system solution by combining an aluminoxane with a metallocene having a substituent which has olefinic ...


18
Michael D Jensen, Gil R Hawley, Max P McDaniel, Tony Crain, Elizabeth A Benham, Joel L Martin, Qing Yang: Acidic activator-supports and catalysts for olefin polymerization. Chevron Phillips Chemical Co, Merchant & Gould, November 13, 2007: US07294599 (92 worldwide citation)

This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, typically using a supported catalyst composition. In one aspect, this invention encompasses precontacting a metallocene with an olefin or alkyne mon ...


19

20
Syriac J Palackal, Helmut G Alt, Konstantinos Patsidis, Tara G Hill, Gil R Hawley, Peter P Chu, M Bruce Welch, Rolf L Geerts: Olefin polymerization using silyl-bridged metallocenes. Phillips Petroleum Company, Edward L Bowman, March 28, 1995: US05401817 (70 worldwide citation)

Fluorenyl-containing silyl bridged metallocenes, the process of using such metallocenes to polymerize olefins, and the resulting unusual syndiotactic polypropylene are disclosed.