Patents by Inventor Brian J. Rohde

Brian J. Rohde 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).

  • Publication number: 20230220179
    Abstract: In some embodiments, a process for producing a cyclic olefin includes introducing a polymer to a metathesis catalyst in a reaction vessel under reaction conditions. The process includes obtaining a cyclic olefin product comprising the cyclic olefin. In some embodiments, a process for producing a cyclic olefin includes introducing an article comprising a polymer to a metathesis catalyst in a reaction vessel under reaction conditions. The process includes obtaining a cyclic olefin product comprising the cyclic olefin.
    Type: Application
    Filed: May 21, 2021
    Publication date: July 13, 2023
    Inventors: Alexander V. Zabula, Lubin Luo, Carlos R. Lopez-Barron, Brian J. Rohde, Mark K. Davis, Frank N. Raushel, Yong Yang, Alan A. Galuska
  • Publication number: 20230145787
    Abstract: A rubber compound for heavy-duty truck or bus tire treads may comprise: 5 to 100 parts by weight per hundred parts by weight rubber (phr) of a long chain branched cyclopentene ring opening rubber (LCB-CPR) having a glass transition temperature (Tg) of ?120° C. to ?80° C., a g?vis of 0.50 to 0.91, and a ratio of cis-to-trans of 40:60 to 5:95; 0 phr to 95 phr of a rubber selected from a group consisting of a natural rubber (NR), a polybutadiene rubber (BR), and a combination thereof; 30 phr to 90 phr of a reinforcing filler; and 0.5 phr to 20 phr of a process oil.
    Type: Application
    Filed: February 26, 2021
    Publication date: May 11, 2023
    Inventors: Alan A. Galuska, Alexander V. Zabula, Yong Yang, Carlos R. Lopez-Barron, Brian J. Rohde, Xiao-Dong Pan, Wen J. Liu
  • Publication number: 20230044510
    Abstract: A composition, including: a copolymer including units derived from ethylene, one or more ?-olefins, one or more substituted styrene compounds, and a pendant alkoxy silane group. A method was disclosed to incorporate pendant alkoxy silyl groups onto the benzylic positions. The silane-functionalized polymers show ability to cure with water. Additionally, blends of silane-functionalized polymers exhibit improved filler acceptance.
    Type: Application
    Filed: July 8, 2022
    Publication date: February 9, 2023
    Inventors: Tzu-Pin Lin, Gang Huang, Jo Ann M. Canich, Irene C. Cai, Brian J. Rohde
  • Patent number: 11512184
    Abstract: A thermoplastic vulcanizate composition, comprising a first phase bi-continuously intertwined with from about 10 wt % to 80 wt % of a second phase throughout the composition, and from about 0.1 wt % to about 10 wt % of a curative system, the first phase comprising polypropylene and the second phase comprising an at least partially cured elastomeric rubber composition, comprising from about 10 wt % to about 40 wt % ethylene, from about 5 wt % to about 10 wt % of a conjugated diene having from 4 to 12 carbon atoms, and from about 50 wt % to about 85 wt % of a C4-C8 alpha olefin, based on the total weight of the elastomeric rubber composition present. A process for making is also disclosed.
    Type: Grant
    Filed: July 14, 2020
    Date of Patent: November 29, 2022
    Assignee: Celanese International Corporation
    Inventors: Carlos R. Lopez-Barron, Hamidreza Khakdaman, Brian J. Rohde
  • Publication number: 20220289879
    Abstract: This invention relates to polymers comprising: one or more that include 1) at least 11 wt % 4 substituted 1,4 hexadiene and less than 20 wt % 5-methyl-1,4-hexadiene, based upon the weight of the polymer, and 2) optionally, one or more olefins; and processes to produces such polymers using metallocene or post-metallocene catalyst compounds.
    Type: Application
    Filed: February 23, 2022
    Publication date: September 15, 2022
    Inventors: Alex E. Carpenter, Tzu-Pin Lin, Brian J. Rohde, Sarah J. Mattler, Nikola S. Lambic, Hsu Chiang, Peijun Jiang, Irene C. Cai, Gursu Culcu, Jarod M. Younker
  • Publication number: 20220290014
    Abstract: An elastomeric composition suitable for use in belts like transmission belts may comprise: from 5 to 100 phr of a propylene-?-olefin-diene (PEDM) terpolymer comprising 80 wt % to 97.5 wt % propylene, 2.5 wt % to 20 wt % a-olefin, and 0.5 wt % to 10 wt % diene, said wt % based on the weight of the PEDM terpolymer, and wherein the PEDM terpolymer has (a) Mooney viscosity (ML(1+4)) of 1 MU to 60 MU, (b) melt flow rate of 0.5 g/min to 100 g/min, and (c) a weight average molecular weight to n-average molecular weight (Mw/Mn) ratio of 1.5 to 3.0; and from 60 to 95 phr of an ethylene-based copolymer comprising 0 wt % to 95 wt % ethylene, 0 wt % to 10 wt % of one or more dienes, and 5 wt % to 60 wt % C3 to C12 ?-olefin, said wt % based on the total weight of the ethylene-based copolymer.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 15, 2022
    Inventors: Zhifeng Bai, Scott H. Loyd, Narayanaswami Dharmarajan, David W. Abmayr, JR., Brian J. Rohde, Jason A. Mann
  • Publication number: 20210253784
    Abstract: Low molecular weight, high Tg resins, with applications including tire additives and adhesives. An oligomer is obtained by ring opening metathesis polymerization (ROMP) of a sterically encumbered cyclic monomer with an olefinic chain transfer agent. The sterically encumbered cyclic monomer and the olefinic chain transfer agent are present in the polymerization at a molar ratio of from 2:1 to about 40:1. Also, methods for making the oligomer by ROMP.
    Type: Application
    Filed: February 2, 2021
    Publication date: August 19, 2021
    Inventors: Eric D. Metzger, Mika L. Shiramizu, Brian J. Rohde, Alan A. Galuska
  • Publication number: 20210246260
    Abstract: Low molecular weight, high Tg resins, with applications including tire additives and adhesives. An oligomer is obtained by ring opening metathesis polymerization (ROMP) of a sterically encumbered cyclic monomer with an olefinic chain transfer agent. The sterically encumbered cyclic monomer and the olefinic chain transfer agent are present in the polymerization at a molar ratio of from 2:1 to about 40:1. Also, methods for making the oligomer by ROMP.
    Type: Application
    Filed: February 2, 2021
    Publication date: August 12, 2021
    Inventors: Eric D. Metzger, Mika L. Shiramizu, Brian J. Rohde, Alan A. Galuska
  • Patent number: 10927207
    Abstract: A thermoplastic vulcanizate comprises an isotactic polypropylene matrix phase in which cross-linked rubber particles are dispersed, the rubber particles comprising an ethylene-propylene-diene terpolymer (EPDM) containing at least 40 wt % of ethylene-derived units. A propylene-ethylene-diene terpolymer (PEDM) containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units and having a heat of fusion (Hf) of 2 to 10 J/g is added to compatibilize the propylene/EPDM blend.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: February 23, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Ron Walker, Sudhin Datta, Andy H. Tsou, Brian J. Rohde, Tamara L. Blanton
  • Publication number: 20210017364
    Abstract: An impact copolymer composition comprising a continuous phase comprising polypropylene and from 10 wt % to 80 wt % of a dispersed phase, based on the total amount of the composition, comprising a copolymer of ethylene and a C4-C8 alpha-olefin, the dispersed phase having an average particle size of less than 500 nm. A process for making is also disclosed.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Carlos R. Lopez-Barron, Hamidreza Khakdaman, Brian J. Rohde, Sung A. Kim
  • Publication number: 20210017361
    Abstract: A thermoplastic vulcanizate composition, comprising a first phase bi-continuously intertwined with from about 10 wt % to 80 wt % of a second phase throughout the composition, and from about 0.1 wt % to about 10 wt % of a curative system, the first phase comprising polypropylene and the second phase comprising an at least partially cured elastomeric rubber composition, comprising from about 10 wt % to about 40 wt % ethylene, from about 5 wt % to about 10 wt % of a conjugated diene having from 4 to 12 carbon atoms, and from about 50 wt % to about 85 wt % of a C4-C8 alpha olefin, based on the total weight of the elastomeric rubber composition present. A process for making is also disclosed.
    Type: Application
    Filed: July 14, 2020
    Publication date: January 21, 2021
    Inventors: Carlos R. Lopez-Barron, Hamidreza Khakdaman, Brian J. Rohde
  • Publication number: 20190309153
    Abstract: A thermoplastic vulcanizate comprises an isotactic polypropylene matrix phase in which cross-linked rubber particles are dispersed, the rubber particles comprising an ethylene-propylene-diene terpolymer (EPDM) containing at least 40 wt % of ethylene-derived units. A propylene-ethylene-diene terpolymer (PEDM) containing at least 60 wt % propylene-derived units and less than or equal to 25 wt % of ethylene-derived units and having a heat of fusion (Hf) of 2 to 10 J/g is added to compatibilize the propylene/EPDM blend.
    Type: Application
    Filed: March 18, 2019
    Publication date: October 10, 2019
    Inventors: Ron Walker, Sudhin Datta, Andy H. Tsou, Brian J. Rohde, Tamara L. Blanton