Patents by Inventor Patrick Brant

Patrick Brant 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: 9102844
    Abstract: Disclosed herein are certain propylene-based metal polymerals and their use in modifying surfaces, and, in general, metal polymerals used in modifying surfaces. In one aspect is a metal polymeryl comprising compounds having the general formula: MR3?nR?n; wherein each R group is a hydrogen or C1 to C10 or C20 alkyl, and each R? group is selected from propylene-based polymers having an Mn of at least 300 g/mole; n is 1, 2, or 3; and M is a Group 12 or 13 metal, preferably aluminum or zinc; wherein the first portion of the R? group bound to the metal M is a —CH2CH2— group, and the terminal portion of the R? group is isobutyl. Surfaces that are modified or “solubilized” include particles of silica or alumina, glass, metal, clay and other hydroxyl-containing materials of all sizes.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: August 11, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Patrick Brant, Donna J. Crowther, John R. Hagadorn, Gregory S. Day
  • Patent number: 9085737
    Abstract: A method for treating an emulsion of a hydrocarbon is disclosed. The method includes providing an emulsion of a crude hydrocarbon, and adding an additive to the emulsion to obtain a treated hydrocarbon.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: July 21, 2015
    Assignee: EXXONMOBIL RESEARCH AND ENGINEERING COMPANY
    Inventors: Mohsen Shahmirzadi Yeganeh, ManKit Ng, Timothy Andrew Barckholtz, Glen Barry Brons, Hong Cheng, Geoffrey Marshall Keiser, Donna J. Crowther, Patrick Brant, David T. Ferrughelli, Clarence Chase, Emmanuel Ulysse, Edward A. Lemon
  • Patent number: 9051404
    Abstract: Disclosed herein is an in-reactor produced multi-component copolymer comprises a semi-crystalline component having a crystallinity of 20% or more, and an amorphous component having a crystallinity of 5% or less. The copolymer comprises at least 80 wt % of units derived from propylene and from about 1 to about 20 wt % of units derived from at least one C6 to C12 alpha-olefin. The copolymer has a viscosity at 190° C. of at least 530 mPa sec and a heat of fusion between about 10 and about 70 J/g. An adhesive containing the copolymer exhibits a good balance of adhesive properties and mechanical strength.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: June 9, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Patrick Brant, David Aaron Henning, David Raymond Johnsrud, Charles Lewis Sims
  • Patent number: 8993702
    Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: March 31, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Renuka N. Ganesh, Andrew G. Narvaez, Jr., Patrick Brant
  • Patent number: 8981029
    Abstract: This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: March 17, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Peijun Jiang, Patrick Brant
  • Patent number: 8951409
    Abstract: The present invention provides a method for reducing fouling, including particulate-induced fouling, in a hydrocarbon refining process including the steps of providing a crude hydrocarbon for a refining process and adding an antifouling agent containing a polymer base unit and a polyamine group to the crude hydrocarbon. The antifouling agent can be obtained by reacting an epoxidation reagent with a vinyl-terminated polymer, such as polypropylene or poly(ethylene-co-propylene), to form a terminal epoxy group, followed by reacting a polyamine with the epoxy group.
    Type: Grant
    Filed: December 18, 2009
    Date of Patent: February 10, 2015
    Assignee: ExxonMobil Research and Engineering Company
    Inventors: Man Kit Ng, Glen B. Brons, Steven W. Levine, Kevin Mallory, Hong Cheng, Patrick Brant, Donna J. Crowther
  • Patent number: 8951677
    Abstract: The present invention relates to microporous membranes comprising polymer and having well-balanced permeability and heat shrinkage, especially heat shrinkage at elevated temperature. The invention also relates to methods for making such membranes, and the use of such membranes as battery separator film in, e.g., lithium ion secondary batteries.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: February 10, 2015
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Patrick Brant
  • Patent number: 8940839
    Abstract: This invention relates to a composition comprising a multiblock polyolefin represented by the formula: PO—C(R11)(R12)—C(R13)?C(R14)—C(R15)(R16)—PO*, or isomers thereof, wherein R11, R12, R13, R14, R15, and R16, are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; PO and PO* are polyolefins; PO and PO* are each independently a substituted or unsubstituted hydrocarbyl group having 9 to 4000 carbon atoms, provided that at least one of PO and PO* are C20 or greater, said polyolefin having: 1) an internal unsaturation as shown by the 13C NMR peak at between about 128 and about 132 ppm; 2) an Mn ratio “Z”=0.1 to 10 where Z is the Mn (as determined by 13C NMR) divided by Mn (as determined according to Gel Permeation Chromotography using polystyrene standards); and 3) optionally, from 0.3(J) and 0.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: January 27, 2015
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John R. Hagadorn, Charles J. Ruff, Renuka N. Ganesh, Patrick Brant
  • Patent number: 8846253
    Abstract: The invention relates to microporous membranes having high meltdown temperature, high air permeability, and high puncture strength. The invention also relates to the production of such membranes and the use of such membranes as battery separator film.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: September 30, 2014
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Takeshi Ishihara, Satoshi Miyaoka, Koichi Kono, Patrick Brant
  • Patent number: 8846815
    Abstract: A thermoplastic vulcanizate comprising a dynamically cured rubber, where the rubber is peroxide cured, and a thermoplastic phase, where at least 10% by weight of the thermoplastic phase includes an ultrahigh molecular weight plastic, where the ultrahigh molecular weight plastic is characterized by a Mw that is greater than 0.8×106 g/mole.
    Type: Grant
    Filed: June 27, 2008
    Date of Patent: September 30, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Maria Dolores Ellul, Eugene Ronald Uhl, Patrick Brant, Jeffrey Lawrence Brinen, Zerong Lin
  • Patent number: 8841397
    Abstract: This invention relates to higher olefin vinyl terminated polymers having an Mn of at least 200 g/mol (measured by 1H NMR) including of one or more C4 to C40 higher olefin derived units, where the higher olefin vinyl terminated polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends and processes for the production thereof. These vinyl terminated higher olefin polymers may optionally include ethylene derived units.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 23, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Matthew W. Holtcamp, Charles J. Ruff, Donna J. Crowther, John R. Hagadorn, Patrick Brant
  • Patent number: 8841394
    Abstract: This invention relates to a vinyl terminated higher olefin copolymer having an Mn of 300 g/mol or more (measured by 1H NMR) comprising: (i) from about 20 to about 99.9 mol % of at least one C5 to C40 higher olefin monomer; and (ii) from about 0.1 to about 80 mol % of propylene; wherein the higher olefin copolymer has at least 40% allyl chain ends. The copolymer may also have an isobutyl chain end to allyl chain end ratio of less than 0.7:1 and/or an allyl chain end to vinylidene chain end ratio of greater than 2:1.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: September 23, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Matthew W. Holtcamp, John R. Hagadorn, Charles J. Ruff, George Rodriguez, Patrick Brant
  • Publication number: 20140262953
    Abstract: A multipurpose chemical additives (MPC) is disclosed to mitigate fouling in hydrocarbon refinery processes, such as in a heat exchanger. A method for reducing fouling of a hydrocarbon is also disclosed that includes (i) providing a crude hydrocarbon for a refining process; and (ii) adding an additive to the crude hydrocarbon.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: ManKit NG, Mohsen Shahmirzadi YEGANEH, Timothy Andrew BARCKHOLTZ, Glen Barry BRONS, Hong CHENG, Matthew W. HOLTCAMP, Geoffrey Marshall KEISER, Donna J. CROWTHER, Patrick BRANT, David T. FERRUGHELLI, Clarence CHASE, Emmanuel ULYSSE, Edward A. LEMON
  • Publication number: 20140262950
    Abstract: A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes hydrohalogenating a polymer having a vinyl chain end to obtain a halogen-containing terminal group, and reacting the terminal group with a polyamine. Methods of using the compound and compositions thereof are also provided.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: ManKit NG, Donna J. CROWTHER, Glen Barry BRONS, Hong CHENG, Patrick BRANT, Clarence CHASE
  • Publication number: 20140275433
    Abstract: A compound useful for reducing fouling in a hydrocarbon refining process is provided. A method for preparing the compound includes converting a polymer having a vinyl chain end to obtain an aldehyde containing terminal group, and reacting the terminal group with a polyamine. Methods of using the compound and compositions thereof are also provided.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: ManKit NG, Donna J. CROWTHER, Patrick BRANT, Glen Barry BRONS, Hong CHENG, Clarence CHASE
  • Publication number: 20140259885
    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: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: ManKit NG, Glen Barry BRONS, Matthew W. HOLTCAMP, Donna J. CROWTHER, Patrick BRANT, Hong CHENG, Clarence CHASE
  • Publication number: 20140262952
    Abstract: A method for treating an emulsion of a hydrocarbon is disclosed. The method includes providing an emulsion of a crude hydrocarbon, and adding an additive to the emulsion to obtain a treated hydrocarbon.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ExxonMobil Research and Engineering Company
    Inventors: Mohsen Shahmirzadi YEGANEH, ManKit NG, Timothy Andrew BARCKHOLTZ, Glen Barry BRONS, Hong CHENG, Matthew W. HOLTCAMP, Geoffrey Marshall KEISER, Donna J. CROWTHER, Patrick BRANT, David T. FERRUGHELLI, Clarence CHASE, Emmanuel ULYSSE, Edward A. LEMON
  • Patent number: 8835563
    Abstract: This invention relates to a process to functionalize polyolefins comprising contacting a metallocene catalyst with a difunctional diblock hydrosilane, and one or more vinyl terminated polyolefins. This invention further relates to the diblock hydrosilane-functionalized polyolefins produced thereby.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: September 16, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Jacqueline A. Lovell, Patrick Brant
  • Patent number: 8816027
    Abstract: 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 is represented by the formula: where: M is hafnium or zirconium; each X is a group bound to M as described herein; each R1 and R2 is, independently, a C1 to C10 alkyl group; each R3 is, independently, hydrogen; each R4, R5, and R6, is, independently, hydrogen or a substituted or unsubstituted hydrocarbyl group, a heteroatom or heteroatom containing group; T is a bridging group as described herein; and further provided that any of adjacent R4, R5, and R6 groups may form a fused ring or multicenter fused ring system where the rings may be aromatic, partially saturated or saturated, wherein the activator comprises a non-coordinating anion.
    Type: Grant
    Filed: May 2, 2013
    Date of Patent: August 26, 2014
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Patrick Brant, Carlos U. De Garcia, Jacqueline A. Lovell
  • Patent number: 8815436
    Abstract: Embodiments of the present invention generally relate to microporous membrane, methods for making microporous membrane, and the use of microporous membrane as battery separator film. More particularly, the invention relates to a microporous polymeric membrane including a paraxylylene polymer or copolymer, particularly in combination with a polymeric microporous membrane. The paraxylylene polymer or copolymer can be formed on or laminated to the microporous polymeric membrane.
    Type: Grant
    Filed: November 23, 2009
    Date of Patent: August 26, 2014
    Assignee: Toray Battery Separator Film Co., Ltd.
    Inventors: Patrick Brant, Derek W. Thurman, Daniel P. Cherney