1
Peijun Jiang, Armenag H Dekmezian, Kevin R Squire, Carlos U de Gracia, Keith Edward Jolibois, Cesar A Garcia Franco, Ronald Raymond Thackston: Thermoplastic olefin compositions. ExxonMobil Chemical Patents, Darryl M Tyus, September 20, 2011: US08022142 (12 worldwide citation)

An in-reactor polymer blend including (a) a propylene-containing first polymer; and (b) propylene-containing second polymer having a different crystallinity from the first polymer. The polymer blend has a melting temperature, Tm, of at least 135° C., a melt flow rate of at least 70 dg/min, a tensile ...


2
Donna J Crowther, Patrick Brant, Carlos U De Gracia, Jacqueline A Lovell: Catalysts and methods of use thereof to produce vinyl terminated polymers. ExxonMobil Chemical Patents, Catherine L Bell, June 4, 2013: US08455597 (3 worldwide citation)

This invention relates to a homogenous process for making a vinyl terminated propylene polymer, wherein the process comprises: contacting, propylene, under polymerization conditions, with a catalyst system comprising an activator and at least one metallocene compound, where the metallocene compound ...


3
Carlos U De Gracia, Kevin R Squire, Peijun Jiang, Armenag H Dekmezian, Beverly J Poole, Cesar A Garcia Franco: Heterogeneous in-reactor polymer blends. ExxonMobil Chemical Patents, Darryl M Tyus, January 31, 2012: US08106127 (3 worldwide citation)

An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propy ...


4
Daniel Bilbao, Jeffrey L Brinen, Carlos U De Gracia, Henry Dong: Process to produce ethylene propylene copolymers. ExxonMobil Chemical Patents, Catherine L Bell, July 5, 2016: US09382361

This invention relates to a copolymer prepared using two or more non-coordinating anion activators comprising a first C2 to C12 alpha olefin (such as ethylene), a second C3 to C12 alpha olefin (such as propylene) different from the first alpha olefin, and diene (such as ethylidene norbornene and/or ...


5
Peijun Jiang, Armenag H Dekmezian, Kevin R Squire, Carlos U De Gracia, Keith Edward Jolibois, Cesar A Garcia Franco, Ronald Raymond Thackston: Thermoplastic Olefin Compositions. Exxonmobil Chemical Company, June 17, 2010: US20100152382-A1

An in-or polymer blend including (a) a propylene-containing first polymer; and (b) propylene-containing second polymer having a different crystallinity from the first polymer. The polymer blend has a melting temperature, Tm, of at least 135° C., a melt flow rate of at least 70 dg/min, a tensile stre ...


6
Carlos U De Gracia, Kevin R Squire, Peijun Jiang, Armenag H Dekmezian, Beverly J Poole, Cesar A Garcia Franco: Heterogeneous In-Reactor Polymer Blends. Exxonmobil Chemical Company, June 17, 2010: US20100152390-A1

An in-reactor polymer blend comprises (a) a propylene-containing first polymer; and (b) an ethylene-containing second polymer such that the polymer blend comprises between about 50 wt % and about 80 wt % units derived from ethylene and between about 50 wt % and about 20 wt % units derived from propy ...


7
Donna J Crowther, Patrick Brant, Carlos U De Gracia, Jacqueline A Lovell: Novel Catalysts And Methods Of Use Thereof To Produce Vinyl Terminated Polymers. September 27, 2012: US20120245311-A1

This invention relates to a homogenous process for making a vinyl terminated propylene polymer, wherein the process comprises: contacting, propylene, under polymerization conditions, with a catalyst system comprising an activator and at least one metallocene compound, where the metallocene compound ...