Patents by Inventor Alexander V. Zabula

Alexander V. Zabula 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: 20240109984
    Abstract: The present disclosure relates to molybdenum and/or tungsten complexes, catalyst systems including molybdenum and/or tungsten complexes, and polymerization processes to produce polyalkenamers such as polypentenamers and polycyclooctenamers.
    Type: Application
    Filed: October 9, 2020
    Publication date: April 4, 2024
    Inventors: Gursu Culcu, Alexander V. Zabula, David A. Cano
  • Patent number: 11891517
    Abstract: Wax compositions may be obtained by providing an olefinic feed comprising a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, wherein m and n are independently selected integers each ranging from about 12 to about 100, and the olefinic feed optionally comprises one or more internal olefins and/or one or more branched olefins; contacting the olefinic feed with a metal carbene catalyst in a reactor; forming ethylene and a hydrocarbon substance comprising a linear olefin dimer comprising two carbon atoms less than a sum of m and n; removing the ethylene from the reactor while forming the linear olefin dimer; and isolating a wax composition comprising the linear olefin dimer, a hydrogenated reaction product thereof, or any combination thereof.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: February 6, 2024
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Anatoly I. Kramer, Alexander V. Zabula, Elizabeth A. Turner, Raf de Meester, Helge Jaensch, Jeffrey C. Bunquin, Javier Guzman, Emiel de Smit, John S. Coleman, Madelyn Bekker, Roxana Perez Velez
  • Publication number: 20240018333
    Abstract: A variety of methods/systems/apparatus/compositions are disclosed, including, in one embodiment, a method including introducing a polymeric material, an unsaturated compound, and an olefin cross metathesis catalyst into a reactor, wherein the polymeric material comprises a carbon black filler; reacting at least a portion of the polymeric material with the unsaturated compound in the presence of the olefin cross metathesis catalyst to produce at least metathesis oil and metathesis carbon black, wherein the metathesis oil comprises an olefin cross metathesis product of the polymeric material and the unsaturated compound; and separating at least a portion of the metathesis carbon black.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 18, 2024
    Inventors: Shuhui Kang, Alexander V. Zabula, Brian J. Rohde, Sergey Yakovlev, Chaky D. Muankaew, Jianya Cheng
  • Patent number: 11724250
    Abstract: A supported catalyst system is based on a transition metal carbene including the moiety M1=CR*)2, wherein M1 is the transition metal and R* is hydrogen or a C1-C8 hydrocarbyl. The catalyst system can be supported on a metal oxide support such as silica or the catalyst can be self-supporting. Methods of making the catalyst system can involve precursors based on and/or reacted with aluminum alkyls, halides, and/or alkoxides. Methods of polymerizing cyclic olefins with the catalyst system can obtain polyalkenamers, cyclic olefin polymers, cyclic olefin copolymers, and other metathesis reaction products. The supported catalyst and/or monomer can be recovered and recycled to the polymerization reactor.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: August 15, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Edward J. Blok, Alan A. Galuska, Anupriya Jain, Alexander V. Zabula, Yen-Hao Lin
  • 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: 20230159670
    Abstract: An improved catalyst for cyclic olefin polymerization. The catalyst includes a transition metal carbene having the following structure: Mv(OR’)c*mX(v-c*m-2)=C(R*)2 wherein Mv is a Group 5 transition metal having a valence (v) of 5 or a Group 6 transition metal having a valence (v) of 5 or 6; each R? is independently a monovalent organic moiety comprising from 8 to 40 atoms selected from Groups 14-17; c is an integer from 1 to 3; m is ?, ½, 1, 3/2, 2, 3, or 4 and c*m ? v-2; X is a halogen; and each R* is independently H or a C1 to C7 alkyl. The catalyst is particularly useful for ring-opening metathesis polymerization (ROMP).
    Type: Application
    Filed: March 10, 2021
    Publication date: May 25, 2023
    Inventors: Alexander V. Zabula, Lubin Luo, Robert L. Halbach, Jo Ann M. Canich, Carlos R. Lopez-Barron, Alan A. Galuska
  • Publication number: 20230159759
    Abstract: Wax compositions may be obtained by subjecting one or more linear alpha olefins to olefin metathesis and optionally hydrogenating. The wax compositions comprise: a hydrocarbon substance comprising a linear olefin dimer formed from a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, a hydrogenated or partially hydrogenated reaction product of the linear olefin dimer, or any combination thereof, the first linear alpha olefin and the second linear alpha olefin being the same or different, and the linear olefin dimer comprising two carbon atoms less than a sum of m and n; wherein m and n are independently selected integers each ranging from 12 to 100; and wherein the wax composition has a melting point of 25° C. or greater.
    Type: Application
    Filed: March 2, 2021
    Publication date: May 25, 2023
    Inventors: Anatoly I. Kramer, Alexander V. Zabula, Elizabeth A. Turner, Roxana Perez Velez, Helge Jaensch, Jeffrey C. Bunquin, Javier Guzman, Emiel de Smit, John S. Coleman, Madelyn Bekker
  • 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: 20230127018
    Abstract: Wax compositions may be obtained by providing an olefinic feed comprising a first linear alpha olefin having m carbon atoms and a second linear alpha olefin having n carbon atoms, wherein m and n are independently selected integers each ranging from about 12 to about 100, and the olefinic feed optionally comprises one or more internal olefins and/or one or more branched olefins; contacting the olefinic feed with a metal carbene catalyst in a reactor; forming ethylene and a hydrocarbon substance comprising a linear olefin dimer comprising two carbon atoms less than a sum of m and n; removing the ethylene from the reactor while forming the linear olefin dimer; and isolating a wax composition comprising the linear olefin dimer, a hydrogenated reaction product thereof, or any combination thereof.
    Type: Application
    Filed: March 2, 2021
    Publication date: April 27, 2023
    Inventors: Anatoly I. Kramer, Alexander V. Zabula, Elizabeth A. Turner, Raf de Meester, Helge Jaensch, Jeffrey C. Bunquin, Javier Guzman, Emiel de Smit, John S. Coleman, Madelyn Bekker, Roxana Perez Velez
  • Publication number: 20230001395
    Abstract: The present disclosure relates to tungsten complexes, catalyst systems including tungsten complexes, and polymerization processes to produce polycycloolefin polymers such as polycyclopentene polymers and polycyclooctene polymers.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 5, 2023
    Inventors: Gursu Culcu, Alexander V. Zabula, Alan A. Galuska, David A. Cano
  • Publication number: 20230002545
    Abstract: Rubber compounds may comprise: an epoxidized polypentenamer rubber (CPR) and/or a hydrolyzed epoxidized CPR; and a filler comprising silica particles. One nonlimiting example is rubber compound comprising: phr to 90 phr of a styrene-butadiene rubber (SBR), a natural rubber (NR), and/or a butadiene rubber (BR); 10 phr to 50 phr of a epoxidized CPR and/or a hydrolyzed epoxidized CPR; and 10 phr to 200 phr of a filler comprising silica particles, wherein the SBR, the NR, the BR, the epoxidized CPR, and the hydrolyzed epoxidized CPR combined equal 100 parts. Rubber compounds comprising epoxidized CPR and/or a hydrolyzed epoxidized CPR; and a filler comprising silica particles may be useful in tire compositions.
    Type: Application
    Filed: November 18, 2020
    Publication date: January 5, 2023
    Inventors: Mika L. Shiramizu, Xiao-Dong Pan, Alexander V. Zabula, Carlos R. Lopez-Barron, Alan A. Galuska, Yong Yang
  • Patent number: 10934438
    Abstract: Coatings and methods of using and producing the same are provided. In an exemplary embodiment, a coating includes a first ligand and a second ligand different than the first ligand. The first ligand includes a first carboxylic moiety, a first aromatic moiety, and a first linking moiety connecting the first carboxylic moiety to the first aromatic moiety. the first linking moiety includes an alkene. The second ligand includes a second carboxylic moiety. The coating includes a metal that is a lanthanoid metal, and the coating includes a coating resin.
    Type: Grant
    Filed: April 23, 2018
    Date of Patent: March 2, 2021
    Assignee: AXALTA COATING SYSTEMS IP CO., LLC
    Inventors: Eric J. Schelter, Alexander V. Zabula, Robert C. Nahas, Jerome R. Robinson, Eric C. Houze, Gaurang Bhargava, Michael Kerins, Jr.
  • Publication number: 20200094234
    Abstract: A process to form a cyclic olefin polymerization catalyst which includes contacting a metal alkoxide with a transition metal halide to form a transition metal precatalyst, and contacting the transition metal precatalyst with a metal alkyl activator to form the activated catalyst comprising a transition metal carbene moiety. A cyclic olefin polymerization process is also disclosed.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Inventors: Lubin Luo, Edward J. Blok, Alan A. Galuska, Anupriya Jain, Alexander V. Zabula, Yen-Hao Lin
  • Publication number: 20200094233
    Abstract: A supported catalyst system is based on a transition metal carbene including the moiety M1=CR*)2, wherein M1 is the transition metal and R* is hydrogen or a C1-C8 hydrocarbyl. The catalyst system can be supported on a metal oxide support such as silica or the catalyst can be self-supporting. Methods of making the catalyst system can involve precursors based on and/or reacted with aluminum alkyls, halides, and/or alkoxides. Methods of polymerizing cyclic olefins with the catalyst system can obtain polyalkenamers, cyclic olefin polymers, cyclic olefin copolymers, and other metathesis reaction products. The supported catalyst and/or monomer can be recovered and recycled to the polymerization reactor.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Inventors: Lubin Luo, Edward J. Blok, Alan A. Galuska, Anupriya Jain, Alexander V. Zabula, Yen-Hao Lin
  • Publication number: 20180312701
    Abstract: Coatings and methods of using and producing the same are provided. In an exemplary embodiment, a coating includes a first ligand and a second ligand different than the first ligand. The first ligand includes a first carboxylic moiety, a first aromatic moiety, and a first linking moiety connecting the first carboxylic moiety to the first aromatic moiety. the first linking moiety includes an alkene. The second ligand includes a second carboxylic moiety. The coating includes a metal that is a lanthanoid metal, and the coating includes a coating resin.
    Type: Application
    Filed: April 23, 2018
    Publication date: November 1, 2018
    Applicants: AXALTA COATING SYSTEMS IP CO., LLC, The Trustees of the University of Pennsylvania
    Inventors: Eric J. Schelter, Alexander V. Zabula, Robert C. Nahas, Jerome R. Robinson, Eric C. Houze, Gaurang Bhargava, Michael Kerins, JR.