Patents by Inventor Gregory S. Day

Gregory S. Day has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9725569
    Abstract: This invention relates to high porosity (?15%) and/or low pore diameter (PD<165 ?m) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS?30 ?m).
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 8, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Gregory S. Day, Jian Yang, Lubin Luo, Steven D. Brown, Rohan A. Hule
  • Patent number: 9676882
    Abstract: This invention relates to processes using staged hydrogen addition in propylene polymerization. Using this process, broad/bi-modal MWD iPP with excellent stiffness properties and melt flow rates were produced.
    Type: Grant
    Filed: January 22, 2016
    Date of Patent: June 13, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Jian Yang, Celestino M. Perez, Jr., Gregory S. Day, Rohan A. Hule
  • Patent number: 9644047
    Abstract: This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound having two indenyl ligands with identical substitution including, for example, cyclopropyl groups and substituted phenyl groups at the 2 and 4 positions of the catalyst, respectively, where the substituents are at the 3? and 5? positions of the phenyl groups.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: May 9, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jian Yang, Matthew W. Holtcamp, Garth R. Giesbrecht, Gregory S. Day, Jo Ann M. Canich, Lian Xiongdong
  • Publication number: 20170114167
    Abstract: This invention relates to a process to polymerize olefins, particularly to produce ethylene polymers with internal unsaturation structures.
    Type: Application
    Filed: August 26, 2016
    Publication date: April 27, 2017
    Inventors: Matthew W. Holtcamp, Matthew S. Bedoya, Xuan Ye, David F. Sanders, Gregory S. Day, Sarah J. Mattler
  • Publication number: 20170096510
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Publication number: 20170096506
    Abstract: A catalyst system including the reaction product of a fluorided support (such as a fluorided silica support) that preferably has not been calcined at a temperature of 400° C. or more, an activator and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems and polymers made therefrom.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Xuan Ye, Matthew W. Holtcamp, Gregory S. Day, Matthew S. Bedoya, David F. Sanders, Laughlin G. McCullough
  • Publication number: 20170096511
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Machteld M. W. Mertens, Gerardo J. Majano Sanchez, Rohan A. Hule
  • Publication number: 20170096509
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Michelle E. Titone, Machteld M. W. Mertens, Gerardo J. Majano Sanchez
  • Publication number: 20170096508
    Abstract: A catalyst system including the reaction product of a fluorided support, an activator, and at least a first transition metal catalyst compound; methods of making such catalyst systems, polymerization processes using such catalyst systems, and polymers made therefrom.
    Type: Application
    Filed: August 19, 2016
    Publication date: April 6, 2017
    Inventors: Xuan Ye, Crisita Carmen H. Atienza, Matthew W. Holtcamp, David F. Sanders, Gregory S. Day, Michelle E. Titone, David A. Cano, Matthew S. Bedoya
  • Publication number: 20170088641
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a pyridyldiamido compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Application
    Filed: August 17, 2016
    Publication date: March 30, 2017
    Inventors: Matthew W. Holtcamp, John R. Hagadorn, Gregory S. Day, Machteld M. W. Mertens, Gerardo J. Majano Sanchez, Rohan A. Hule
  • Patent number: 9556287
    Abstract: Polymers produced by a process comprising contacting one or more olefins with a catalyst system comprising an activator and a Salan catalyst disposed on a support.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: January 31, 2017
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Gregory S. Day, John R. Hagadorn
  • Publication number: 20170015686
    Abstract: This invention relates to novel bridged bis indenyl metallocene catalyst compounds where the bridge is —((R15*)2Si—Si(R15)2)— wherein, each R15 and R15* is identical or different and is a substituted or unsubstituted, branched or unbranched C1-C20 alkyl group, preferably each R15 together do not form a ring, and/or each R15* together do not form a ring, and/or R15 and R15* together do not form a ring. This invention also relates to polymerization processes to produce polymer and to polymer compositions produced by the methods described.
    Type: Application
    Filed: May 20, 2016
    Publication date: January 19, 2017
    Inventors: Jian Yang, Matthew W. Holtcamp, Gregory S. Day, Xiongdong Lian, Xuan Ye
  • Publication number: 20160355653
    Abstract: This invention relates to high porosity (?15%) and/or low pore diameter (PD<165 ?m) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS?30 ?m).
    Type: Application
    Filed: April 29, 2016
    Publication date: December 8, 2016
    Inventors: Matthew W. Holtcamp, Gregory S. Day, Jian Yang, Lubin Luo, Steven D. Brown, Rohan A. Hule
  • Publication number: 20160355654
    Abstract: This invention relates to single site catalyst supportation methods involving high temperature treatment (?40° C., e.g., 100-130° C.) to improve catalyst activity for olefin polymerization, e.g., propylene polymerization, and to the supported catalyst systems obtained by the methods, e.g., single site catalyst systems supported on a support having high average particle size (PS?30 ?m), high surface area (SA?200 m2/g), low pore volume (PV?2 mL/g), and a mean pore diameter range of 1?PD?20 nm.
    Type: Application
    Filed: April 29, 2016
    Publication date: December 8, 2016
    Inventors: Lubin Luo, Gregory S. Day
  • Publication number: 20160355656
    Abstract: This invention relates to catalyst supports having high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS?30 ?m), supported catalysts, and supportation processes; and further relates to: high porosity (?15%) and/or low pore diameter (PD<165 ?m) propylene polymers; bimodal polymers and/or heterophasic copolymers based on the high porosity and/or low pore diameter propylene polymers; propylene polymerization processes using the supported catalysts and/or to prepare the high porosity and/or low pore diameter propylene polymers, bimodal polymers and/or heterophasic copolymers.
    Type: Application
    Filed: April 29, 2016
    Publication date: December 8, 2016
    Inventors: Lubin Luo, Gregory S. Day, Jian Yang, Matthew W. Holtcamp
  • Publication number: 20160355657
    Abstract: This invention relates to heterophasic copolymers of propylene and an alpha olefin comonomer having a high fill phase content (?15%), and heterophasic polymerization processes using a single site catalyst system with a support having high average particle size (PS?30 ?m), high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), and a mean pore diameter range of 1?PD?20 nm.
    Type: Application
    Filed: April 29, 2016
    Publication date: December 8, 2016
    Inventors: Lubin Luo, Gregory S. Day, Matthew W. Holtcamp
  • Publication number: 20160355655
    Abstract: This invention relates to high porosity (?15%) and/or low pore diameter (PD<165 ?m) propylene polymers and propylene polymerization processes using single site catalyst systems with supports having high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), a specific mean pore diameter range (PD=1-20 nm), and high average particle size (PS?30 ?m).
    Type: Application
    Filed: April 29, 2016
    Publication date: December 8, 2016
    Inventors: Luo Lubin, Matthew W. Holtcamp, Gregory S. Day
  • Patent number: 9382349
    Abstract: Polyalphaolefins and Salan catalysts, catalyst systems, and processes to produce the polyalphaolefins. Also disclosed are high-viscosity index polyalphaolefins and processes for producing them.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: July 5, 2016
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Bruce A. Harrington, Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol, Konstantin Press, Gregory S. Day
  • Patent number: 9365661
    Abstract: Disclosed herein are polyalphaolefins and Salan cataylsts, catalyst systems, and processes to produce the polyalphaolefins.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: June 14, 2016
    Assignees: ExxonMobil Chemical Patents Inc., Ramot at Tel-Aviv University Ltd.
    Inventors: Garth R. Giesbrecht, Matthew W. Holtcamp, Moshe Kol, Konstantin Press, Gregory S. Day
  • Publication number: 20160137763
    Abstract: This invention relates to processes using staged hydrogen addition in propylene polymerization. Using this process, broad/bi-modal MWD iPP with excellent stiffness properties and melt flow rates were produced.
    Type: Application
    Filed: January 22, 2016
    Publication date: May 19, 2016
    Inventors: Matthew W. Holtcamp, Jian Yang, Celestino M. Perez, JR., Gregory S. Day, Rohan A. Hule