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Arjunan Palanisamy, Mathew Thottinal A, Brant Patrick, Vizzini James C: Branched crystalline polypropylene. Exxonmobil Chemical Patents, Arjunan Palanisamy, Mathew Thottinal A, Brant Patrick, Vizzini James C, ARECHEDERRA Leandro, May 6, 2004: WO/2004/037872 (10 worldwide citation)

Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing a branched crystalline polypropylene composition that includes combining two or more different meta ...


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Arjunan Palanisamy, Mathew Thottinal A, Brant Patrick, Vizzini James C: Branched crystalline polypropylene. Exxonmobil Chemical Patents, Arjunan Palanisamy, Mathew Thottinal A, Brant Patrick, Vizzini James C, ARECHEDERRA Leandro, May 6, 2004: WO/2004/037871 (10 worldwide citation)

Branched crystalline polypropylene compositions and methods for the preparation of branched crystalline polypropylene compositions are provided. For example, described herein is a process of preparing a branched crystalline polypropylene composition that includes combining two or more different meta ...


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Burkhardt Terry J, Stehling Udo M, Hart James R, Haygood William T, Li Robert T, Vizzini James C, Kuchta Matthew C: (indenyl) Metallocene compounds. Exxonmobil Chemical Patents, SCHMIDT Paige, January 10, 2002: WO/2002/002576 (4 worldwide citation)

This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula wherein M?1¿ is selected from the group consisting of titanium, zir ...


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Vizzini James C, Powell Ted A, Ju Shiaw: Methods of feed purification for olefin polymerization. Exxonmobil Chemical Patents, Vizzini James C, Powell Ted A, Ju Shiaw, ARECHEDERRA Leandro, April 22, 2004: WO/2004/033507 (1 worldwide citation)

A polymerization process is provided. For example, a polymerization process is described, including contacting olefin monomers with a supported metallocene catalyst to polymerize the olefin monomers and form a product mixture that includes polyolefins macromers or polymers, unreacted or partially re ...


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Burkhardt Terry J, Stehling Udo M, Hart James R, Haygood William T, Li Robert T, Vizzini James C, Kuchta Matthew C: Propylene polymer. Exxonmobil Chem Patents, March 8, 2006: EP1632506-A1

This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula: wherein M 1 is selected from the group consisting of titanium, zir ...


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Burkhardt Terry J, Stehling Udo M, Hart James R, Haygood William T, Li Robert T, Vizzini James C, Kuchta Matthew C: Metallocenes with a bridged 4-phenyl-indenyl-ligand for olefin polymerisation. Exxonmobil Chem Patents, May 28, 2003: EP1313746-A1

This invention relates to metallocene compositions and their use in the preparation of catalyst systems for olefin polymerization, particularly propylene polymerization. The metallocene compositions may be represented by the formula wherein M is selected from the group consisting of titanium, zircon ...


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Smith Lawrence C, Vizzini James C, Powell Ted A, Burkhardt Terry J, Speca Anthony N, Ju Shiaw: Methods of delivering catalyst systems for propylene polymerization. Exxonmobil Chem Patents, July 27, 1992: EP1556422-A1

A polymerization process is provided. For example, a polymerization process is described, including providing a catalyst slurry having a metallocene catalyst and a first oil, providing a transport medium including a second oil and combining the transport medium and the catalyst slurry to form a cata ...