1
Joel L Martin, Matthew G Thorn, Max P McDaniel, Michael D Jensen, Qing Yang, Paul J DesLauriers, Mark E Kertok: Polymerization catalysts and process for producing bimodal polymers in a single reactor. Chevron Phillips Chemical Company, Merchant & Gould, December 25, 2007: US07312283 (119 worldwide citation)

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein prov ...


2
Michael D Jensen, Joel L Martin, Max P McDaniel, Qing Yang, Matthew G Thorn, Elizabeth A Benham, Ted H Cymbaluk, Ashish M Sukhadia, Rajendra K Krishnaswamy, Mark E Kertok: Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength. Womble Carlyle Sandridge & Rice PLLC, October 10, 2006: US07119153 (70 worldwide citation)

This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new p ...


3
Joel L Martin, Elizabeth A Benham, Mark E Kertok, Michael D Jensen, Max P McDaniel, Gil R Hawley, Qing Yang, Matthew G Thorn, Ashish M Sukhadia: Resins that yield low haze films and the process for their production. Chevron Phillips Chemical Company, Merchant & Gould, April 3, 2007: US07199073 (55 worldwide citation)

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The compositions ...


4
Michael D Jensen, Joel L Martin, Max P McDaniel, Qing Yang, Matthew G Thorn, Elizabeth A Benham, Ted H Cymbaluk, Ashish M Sukhadia, Rajendra K Krishnaswamy, Mark E Kertok: Ethylene homopolymers or copolymers having good machine direction (MD) elmendorf tear strength. Chevron Phillips Chemical Company, Merchant & Gould P C, August 11, 2009: US07572875 (8 worldwide citation)

This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new p ...


5
Mark E Kertok: Mixing apparatus. Phillips Petroleum Company, March 5, 1985: US04502858 (5 worldwide citation)

A mixing apparatus particularly useful in carbon black pelleting has two parallel pinned shafts. The pins on each shaft are arranged in a double helix fashion with the pins interdigitating. The pins of each double helix are composed of two subsets of pins arranged in a single helix which single heli ...


6
Mark L Gravley, Mark E Kertok: Carbon black reactor. Phillips Petroleum Company, A W Umphlett, November 18, 1986: US04623521 (4 worldwide citation)

Vanes operatively attached to external sleeves are provided in a conduit to implement on the outside of the conduit change in the swirl angle of incoming fluids.


7
Joel L Martin, Matthew G Thorn, Max P McDaniel, Michael D Jensen, Qing Yang, Paul J DesLauriers, Mark E Kertok: Polymerization catalysts and process for producing bimodal polymers in a single reactor. Womble Carlyle Sandridge & Rice Pplc, Chevron Phillips Chemical Company, February 22, 2007: US20070043176-A1

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. Methods for preparing and using such catalysts to produce polyolefins are also provided. The compositions and methods disclosed herein prov ...


8
Michael D Jensen, Joel L Martin, Max P McDaniel, Qing Yang, Matthew G Thorn, Elizabeth A Benham, Ted H Cymbaluk, Ashish M Sukhadia, Rajendra K Krishnaswamy, Mark E Kertok: Dual metallocene catalyst for producing film resins with good machine direction (MD) elmendorf tear strength. Womble Carlyle Sandridge & Rice Pplc, Chevron Phillips Chemical Company, July 21, 2005: US20050159300-A1

This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new p ...


9
Joel L Martin, Elizabeth A Benham, Mark E Kertok, Michael D Jensen, Max P McDaniel, Gil R Hawley, Qing Yang, Matthew G Thorn, Ashish M Sukhadia: Resins that yield low haze films and the process for their production. Womble Carlyle Sandridge & Rice Pplc, Chevron Phillips Chemical Company, May 11, 2006: US20060100401-A1

Catalyst compositions comprising a first metallocene compound, a second metallocene compound, a third metallocene compound, a chemically-treated solid oxide, and an organoaluminum compound are provided. Methods for preparing and using the catalyst and polyolefins are also provided. The compositions ...


10
Michael D Jensen, Joel L Martin, Max P McDaniel, Qing Yang, Matthew G Thorn, Elizabeth A Benham, Ted H Cymbaluk, Ashish M Sukhadia, Rajendra K Krishnaswamy, Mark E Kertok: Ethylene homopolymers or copolymers having good machine direction (MD) elmendorf tear strength. Chevron Phillips Chemical Company, Womble Carlyle Sandridge & Rice Pplc, Chevron Phillips Chemical Company, October 12, 2006: US20060229420-A1

This invention relates to catalyst compositions comprising a first metallocene compound, a second metallocene compound, at least one chemically-treated solid oxide, and at least one organoaluminum compound. This invention also relates to methods to prepare and use the catalyst compositions and new p ...