1
Sun Chueh Kao, Francis C Rix, Dongming Li, C Jeff Harlan, Parul A Khokhani: Mixed metal catalyst systems having a tailored hydrogen response. Univation Technologies, Kristina Leavitt, Jennifer A Schmidt, Leandro Arechederra III, May 7, 2013: US08435914 (2 worldwide citation)

A polymerization catalyst system and polymerization processes using the catalyst systems are disclosed. The polymerization catalyst systems may include a) a first catalyst compound, and b) a second catalyst compound, wherein the first catalyst compound includes an oxadiazole-containing compound. In ...


2
Kevin J Cann, C Jeff Harlan, Wesley R Mariott, Lixin Sun, Daniel P Zilker Jr, F David Hussein, Phuong A Cao, John H Moorhouse, Mark G Goode: Catalyst systems and methods for using same to produce polyolefin products. Univation Technologies, Jennifer A Schmidt, Kristina Leavitt, September 16, 2014: US08835582 (1 worldwide citation)

Catalyst systems and methods for making and using the same. The catalyst system can include a single site catalyst compound, a support comprising fluorinated alumina, and an aluminoxane. The aluminoxane can be present in an amount of about 10 mmol or less per gram of the support.


3
Sun Chueh Kao, Phuong A Cao, C Jeff Harlan, Parul A Khokhani, George Rodriguez, Francis C Rix, Garth R Giesbrecht: Methods of preparing a catalyst system. Univation Technologies, Brooks Cameron & Huebsch PLLC, January 12, 2016: US09234060

Disclosed herein are methods of preparing a catalyst system comprising a spray-dried activator and polymerization processes employing these catalyst systems.


4
John H Moorhouse, Kevin J Cann, Phuong A Cao, Mark G Goode, C Jeff Harlan, Wesley R Mariott: Fluorinated catalyst supports and catalyst systems. Univation Technologies, Brooks Cameron & Huebsch PLLC, January 29, 2019: US10189917

Catalyst systems and methods for making and using the same. A method for making a catalyst support includes forming a mixture of a support material and a fluoride donor. The mixture is added to a fluidized bed reactor. The mixture is fluidized to form a fluidized bed with a height to diameter ratio ...


5
Ching Tai Lue, Francis C Rix, C Jeff Harlan, Laughlin G McCullough: Producing polyolefin products. Univation Technologies, Brooks Cameron & Huebsch PLLC, January 29, 2019: US10189923

Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a s ...


6
Ching Tai Lue, Francis C Rix, C Jeff Harlan, Laughlin G McCullough: Producing polyolefin products. Univation Technologies, Brooks Cameron & Huebsch PLLC, November 7, 2017: US09809667

Catalyst systems and methods for making and using the same. A method of polymerizing olefins to produce a polyolefin polymer with a multimodal composition distribution, includes contacting ethylene and a comonomer with a catalyst system. The catalyst system includes a first catalyst compound and a s ...


7
Daniel D Vanderlende, C Jeff Harlan, Haiqing Peng, Michael D Awe, Roger L Kuhlman, Ching Tai Lue, Timothy R Lynn, Wesley R Mariott, Daniel P Zilker Jr: Producing polyolefin products. Univation Technologies, Brooks Cameron & Huebsch PLLC, February 27, 2018: US09902790

A method of polymerizing olefins is disclosed. The method comprises contacting ethylene and at least one comonomer with a catalyst system to produce a polyolefin polymer that is multimodal. The catalyst system comprises a first catalyst that promotes polymerization of the ethylene into a low molecul ...


8
Francis C Rix, Alexander D Todd, C Jeff Harlan: Producing polyolefin products. Univation Technologies, Brooks Cameron & Huebsch PLLC, April 3, 2018: US09932426

Catalyst systems and methods for making and using the same. A method of methylating a catalyst composition while substantially normalizing the entiomeric distribution is provided. The method includes slurrying the organometallic compound in dimethoxyethane (DME), and adding a solution of RMgBr in DM ...


9
Francis C Rix, Ching Tai Lue, Timothy M Boller, Garth R Giesbrecht, C Jeff Harlan: Producing polyolefin products. Univation Technologies, Brooks Cameron & Huebsch PLLC, January 30, 2018: US09879106

Catalyst systems and methods for making and using the same are described. A method includes selecting a catalyst blend using a blend polydispersity index (bPDI) map. The polydispersity map is generated by generating a number of polymers for at least two catalysts. Each polymer is generated at a diff ...


10
C Jeff Harlan, Xianyi Cao, Francis C Rix: Synthesis of alkyl cyclopentadiene compounds. Univation Technologies, Kristina Leavitt, March 10, 2015: US08975427

A method of synthesizing an alkyl cyclopentadiene compound is disclosed. The method includes contacting at least one cyclopentadienyl anion source and at least one alkyl group source to form at least one alkyl cyclopentadiene compound. The method further includes extracting the alkyl cyclopentadiene ...