Patents by Inventor Matthew W. Holtcamp

Matthew W. Holtcamp 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: 9920176
    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: Grant
    Filed: April 29, 2016
    Date of Patent: March 20, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Gregory S. Day, Jian Yang, Matthew W. Holtcamp
  • Publication number: 20180072823
    Abstract: This invention relates to a catalyst system including fluorided silica, alkylalumoxane activator and a bridged monocyclopentadienyl group 4 transition metal compound, where the fluorided support has not been calcined at a temperature of 400° C. or more, and is preferably, produced using a wet mix method, particularly an aqueous method.
    Type: Application
    Filed: March 10, 2016
    Publication date: March 15, 2018
    Inventors: Xuan Ye, Matthew W. Holtcamp, Laughlin G. McCullough, Jo Ann M. Canich, David F. Sanders, Gregory S. Day, Michelle E. Titone
  • Publication number: 20180022843
    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: October 2, 2017
    Publication date: January 25, 2018
    Inventors: Lubin Luo, Matthew W. Holtcamp, Gregory S. Day
  • Publication number: 20170327604
    Abstract: A catalyst system comprising a combination of: 1) an activator; 2) one or more metallocene catalyst compounds; 3) a support comprising an organosilica material, which is a mesoporous organosilica material. The organosilica material is a polymer of at least one monomer of Formula [Z1OZ2 SiCh2]3(i), where Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silic-on atom of another monomer and Z2 represents a hydroxyl group, a C1-C4alkoxy group, a C1-C6 salkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
    Type: Application
    Filed: December 12, 2015
    Publication date: November 16, 2017
    Inventors: Matthew W. HOLTCAMP, Gregory S. DAY, David F. SANDERS, David C. CALABRO, Quanchang LI, Machteld M.W. MERTENS
  • Publication number: 20170320971
    Abstract: A catalyst system comprising a combination of: 1) one or more catalyst compounds having at least one nitrogen linkage and at least one oxygen linkage to a transition metal; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include ONNO-type transition metal catalysts, ONYO-Type transition metal catalysts, and/or oxadiazole transition metal catalysts. The organosilica material is a polymer of at least one monomer of Formula [z?0Z2 SiCH2]3(1), where Z1 represents a hydrogen atom, a C1-C4alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4alkoxy group, a C1-C6alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
    Type: Application
    Filed: December 11, 2015
    Publication date: November 9, 2017
    Inventors: Matthew W. HOLTCAMP, Matthew S. BEDOYA, Charles J. HARLAN, Quanchang LI, Machteld M.W. MERTENS
  • Publication number: 20170320977
    Abstract: A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one nitrogen linkage; 2) a support comprising an organosilica material, which is a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include pyridyldiamido transition metal complexes, HN5 compounds, and bis(imino)pyridyl complexes. The organosilica material is a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3(1), where Z1 represents a hydrogen atom, a C1-C4alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4alkoxy group, a C1-C6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
    Type: Application
    Filed: December 11, 2015
    Publication date: November 9, 2017
    Inventors: Matthew W. HOLTCAMP, Matthew S. BEDOYA, Charles J. HARLAN, Quanchang LI, Machteld M.W. MERTENS
  • Patent number: 9809664
    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: November 7, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Luo Lubin, Matthew W. Holtcamp, Gregory S. Day
  • Publication number: 20170313799
    Abstract: This invention relates to organoaluminum activators, organoaluminum activator systems, preferably supported, to polymerization catalyst systems containing these activator systems and to polymerization processes utilizing the same. In particular, this invention relates to catalyst systems comprising an ion-exchange layered silicate, an organoaluminum activator, and a metallocene.
    Type: Application
    Filed: March 20, 2017
    Publication date: November 2, 2017
    Inventors: Matthew W. Holtcamp, Gregory S. Day
  • Publication number: 20170306136
    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: July 7, 2017
    Publication date: October 26, 2017
    Inventors: Lubin Luo, Gregory S. Day, Matthew W. Holtcamp
  • Publication number: 20170306068
    Abstract: A catalyst system comprising a combination of: 1) one or more catalyst compounds comprising at least one oxygen linkage, such as a phenoxide transition metal compound; 2) a support comprising an organosilica material, which may be a mesoporous organosilica material; and 3) an optional activator. Useful catalysts include biphenyl phenol catalysts (BPP). The organosilica material may be a polymer of at least one monomer of Formula [Z1OZ2SiCH2]3 (I), where Z1 represents a hydrogen atom, a C1-C4 alkyl group, or a bond to a silicon atom of another monomer and Z2 represents a hydroxyl group, a C1-C4 alkoxy group, a C1-C6 alkyl group, or an oxygen atom bonded to a silicon atom of another monomer. This invention further relates to processes to polymerize olefins comprising contacting one or more olefins with the above catalyst system.
    Type: Application
    Filed: December 11, 2015
    Publication date: October 26, 2017
    Inventors: Matthew W. HOLTCAMP, Charles J. HARLAN, Quanchang LI, Machteld M.W. MERTENS
  • Patent number: 9745390
    Abstract: This invention relates to a novel group 2, 3 or 4 transition metal metallocene catalyst compound that is asymmetric having two non-identical indenyl ligands with substitution at R2 having a branched or unbranched C1-C20 alkyl group substituted with a cyclic group or a cyclic group, R8 is an alkyl group and R4 and R10 are substituted phenyl groups.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: August 29, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jian Yang, Matthew W. Holtcamp, Garth R. Giesbrecht, Gregory S. Day
  • Patent number: 9745528
    Abstract: A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes functionalizing a polymer having a vinyl chain end to obtain a terminal group having one or more anhydride units, and reacting the anhydride units with a polyamine. Methods of using the compound and compositions thereof are also provided.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 29, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Man Kit Ng, Glen B. Brons, Matthew W. Holtcamp, Donna J. Crowther, Patrick Brant, Hong Cheng, Clarence Chase
  • Patent number: 9738779
    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: Grant
    Filed: April 29, 2016
    Date of Patent: August 22, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Gregory S. Day, Matthew W. Holtcamp
  • 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: 9714393
    Abstract: A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes functionalizing a polymer having a vinyl chain end to obtain a terminal group having one or more anhydride units, and reacting the anhydride units with a polyamine. Methods of using the compound and compositions thereof are also provided.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: July 25, 2017
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Man Kit Ng, Glen B. Brons, Matthew W. Holtcamp, Donna J. Crowther, Patrick Brant, Hong Cheng, Clarence Chase
  • 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: 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: 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