1
Howard C Welborn Jr: Supported polymerization catalyst. Exxon Chemical Patents, M B Kurtzman, February 28, 1989: US04808561 (464 worldwide citation)

An olefin polymerization supported catalyst comprising a support and the reaction product of a metallocene of Group 4b, 5b or 6b of the Periodic Table and an alumoxane, said reaction product formed in the presence of a support.


2
Howard C Welborn Jr: Supported polymerization catalyst. Exxon Chemical Patents, M B Kurtzman, October 20, 1987: US04701432 (233 worldwide citation)

An olefin polymerization catalyst comprising (a) a supported transition metal containing component comprising the support treated with at least one metallocene and at least one non-metallocene transition metal compound, and a cocatalyst comprising an alumoxane and an organometallic compound of a met ...


3
Welborn Howard Curtis Jr: Supported polymerization catalyst.. Exxon Chemical Patents, December 30, 1986: EP0206794-A1 (94 worldwide citation)

An olefin polymerization supported catalyst comprising a support and the reaction product of a metallocene of Group 4b, 5b or 6b of the Periodic Table and an alumoxane, said reaction product formed in the presence of a support.


4
Howard C Welborn Jr: Supported polymerization catalyst. Exxon Chemical Patents, Jaimes Sher, Myron B Kurtzman, June 23, 1992: US05124418 (70 worldwide citation)

An olefin polymerization catalyst comprising (a) a supported transition metal containing component comprising the support treated with at least one metallocene and at least one non-metallocene transition metal compound, and a cocatalyst comprising an alumoxane and an organometallic compound of a met ...


5
Welborn Howard Curtis: New supported polymerization catalyst.. Exxon Chemical Patents, March 16, 1988: EP0260130-A1 (64 worldwide citation)

An olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, VB, and VIB of the Periodic Table, a non-metallocene transition metal containing compound of a Group IVB, VB, or VIB metal and an alumoxane, said reaction produc ...


6
Herrmann Hans Friedrich Dr, Bachmann Bernd Dr, Spaleck Walter Dr: Olefin polymerization catalyst, process for its preparation, and its use.. Hoechst, January 19, 1994: EP0578838-A1 (60 worldwide citation)

A supported polymerization catalyst which is applicable in all polymerization processes is comprised of the reaction product of (A) a supported organoaluminum compound and (B) a metallocene catalyst component.


7
Howard C Welborn Jr: New supported polymerization catalyst. Exxon Chemical Patents, December 31, 1991: US05077255 (56 worldwide citation)

An olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, VB, and VIB of the Periodic Table, a non-metallocene transition metal containing compound of a Group IBV, VB, or VIB metal and an alumoxane, said reaction produc ...


8
Howard C Welborn Jr: Polymerization process using a new supported polymerization catalyst. Exxon Chemical Patents, Jaimes Sher, Myron B Kurtzman, February 2, 1993: US05183867 (55 worldwide citation)

An olefin polymerization supported catalyst comprising the supported reaction product of at least one metallocene of a metal of Group IVB, VB, and VIB of the Periodic Table, a non-metallocene transition metal containing compound of a Group IVB, VB, or VIB metal and an alumoxane, said reaction produc ...


9
Welborn Howard Curtis Jr: Supported polymerization catalyst (p-1180).. Exxon Chemical Patents, August 19, 1987: EP0232595-A1 (23 worldwide citation)

An olefin polymerization catalyst comprising (a) a supported transition metal containing component comprising the support treated with at least one metallocene and at least one non-metallocene transition metal compound, and a cocatalyst comprising an alumoxane and an organometallic compound of a met ...


10
Dimeska Anita, Maier Ralph Dieter, Paczkowski Nicola Stephanie, Thorn Matthew Grant, Winter Andreas, Schulte Joerg, Sell Thorsten: Metallocene compounds, catalysts comprising them, process for producing an olefin polymer by use of the catalysts, and olefin homo-and copolymers. Novolen Technology Holdings Cv, Dimeska Anita, Maier Ralph Dieter, Paczkowski Nicola Stephanie, Thorn Matthew Grant, Winter Andreas, Schulte Joerg, Sell Thorsten, COVELLO Diane F, April 30, 2009: WO/2009/054832 (21 worldwide citation)

Certain metallocene compounds are provided that, when used as a component in a supported polymerization catalyst under industrially relevant polymerization conditions, afford high molar mass homo polymers or copolymers like polypropylene or propylene/ethylene copolymers without the need for any α- b ...