1
Max P McDaniel, Anthony P Eaton, Elizabeth A Benham, Shawn R Kennedy, Ashish M Sukhadia, Rajendra K Krishnaswamy, Kathy S Collins: Process for producing a polymer composition. Phillips Petroleum Company, Polly C Owen, May 14, 2002: US06388017 (167 worldwide citation)

A process is provided for producing a polymer composition. The process comprises contacting a narrow molecular weight distribution base polymer and a high molecular weight polymer component. The base polymer is an ethylene polymer having a Mw/Mn less than about 5 and a melt flow index from about 0.2 ...


2
Michael D Jensen, Max P McDaniel, Joel L Martin, Elizabeth A Benham, Randy Muninger, Gary Jerdee, Ashish M Sukhadia, Qing Yang, Matthew G Thorn: Catalyst compositions and polyolefins for extrusion coating applications. Chevron Phillips Chemical Company, Womble Carlyle Sandridge & Rice PLLC, May 9, 2006: US07041617 (98 worldwide citation)

This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition com ...


3
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 ...


4
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 ...


5
Michael D Jensen, Joel L Martin, Max P McDaniel, David C Rolfing, Qing Yang, Matthew G Thorn, Ashish M Sukhadia, Youlu Yu, Jerry T Lanier: Polymerization catalysts for producing polymers with low levels of long chain branching. Chevron Phillips Chemical Company, Womble Carlyle Sandridge & Rice PLLC, December 12, 2006: US07148298 (47 worldwide citation)

This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging η5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels ...


6
Ashish M Sukhadia, Jerry D Stark, Max P McDaniel, Elizabeth A Benham, Michael D Jensen, Joel L Martin, Rajendra K Krishnaswamy: Ethylene polymers and copolymers with high optical opacity. Chevron Phillips Chemical Company, Womble Carlyle Sandridge & Rice PLLC, August 22, 2006: US07094857 (30 worldwide citation)

This invention relates to the field of metal-catalyzed olefin polymerization methods and the polymers and films prepared therefrom. In one aspect, this invention provides polyethylene and ethylene/α-olefin copolymers formed in the presence of tightly-bridged metallocene catalyst, organoaluminum coca ...


7
Michael D Jensen, Max P McDaniel, Joel L Martin, Elizabeth A Benham, Randy Muninger, Gary Jerdee, Ashish M Sukhadia, Qing Yang, Matthew G Thorn: Catalyst compositions and polyolefins for extrusion coating applications. Chevron Phillips Chemical Company, Merchant & Gould P C, November 25, 2008: US07456243 (21 worldwide citation)

This invention relates to the field of olefin polymerization catalyst compositions, and methods for the polymerization and copolymerization of olefins, including polymerization methods using a supported catalyst composition. In one aspect, the present invention encompasses a catalyst composition com ...


8
Michael D Jensen, Joel L Martin, Max P McDaniel, David C Rolfing, Qing Yang, Matthew G Thorn, Ashish M Sukhadia, Youlu Yu, Jerry T Lanier: Polymerization catalysts for producing polymers with low levels of long chain branching. Chevron Phillips Chemical Company, Merchant & Gould P C, December 30, 2008: US07470758 (20 worldwide citation)

This invention relates to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene with bridging η5-cyclopentadienyl-type ligands, in combination with a cocatalyst and an activator-support. The compositions and methods disclosed herein provide ethylene polymers with low levels ...


9
Ashish M Sukhadia, Joel L Martin, Qing Yang, Kumudini C Jayaratne, J Todd Lanier: Polyethylene film having improved mechanical and barrier properties and method of making same. Chevron Phillips Chemical Company, Conley Rose P C, Rodney B Carroll, Cheryl L Huseman, December 15, 2009: US07632907 (20 worldwide citation)

A polyethylene film comprising a polymer composition having the characteristics of a total energy dart drop, measured in accordance with ASTM D4272, of greater than a bout 0.45 ft.lbf, a dart drop impact strength, measured in accordance with ASTM D1709 Method A, of greater than about 135 g, and a mo ...


10
Ashish M Sukhadia, David C Rohlfing, Jay Janzen, Paul J DesLauriers, Jim D Byers, Louis Moore Jr, M Bruce Welch, Syriac J Palackal, William M Whitte, William R Coutant, Kiplin D Cowan: Films comprising metallocene catalyzed polyethylene. Phillips Petroleum Company, Edward L Bowman, April 10, 2001: US06214469 (13 worldwide citation)

A high clarity film containing three layers wherein the polymer of each outer layer is the same or different polyethylene selected from polyethylenes having a density of at least 0.925 g/cc, and a molecular weight distribution of less than 4, and being further characterized by being substantially fr ...