Patents Examined by Rip A. Lee
  • Patent number: 12037440
    Abstract: Embodiments are directed to catalyst systems comprising: a procatalyst; and a co-catalyst dissolved in a non-halogenated aprotic hydrocarbon solvent, the co-catalyst comprising: a non-coordinating borate dianion having the formula: (III) and two cations, each cation being independently chosen from a cation according to formula (I) or formula (II).
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: July 16, 2024
    Assignees: Dow Global Technologies LLC, Northwestern University
    Inventors: Tobin J. Marks, Yanshan Gao, Tracy L. Lohr, Matthew D. Christianson, Jerzy Klosin, Edmund M. Carnahan, Andrew J. Young
  • Patent number: 12031021
    Abstract: The present invention relates to a polyolefin and a film molded therefrom. Specifically, the present invention relates to a polyolefin, particularly a linear low-density polyethylene, which is prepared by a hybrid catalyst comprising different transition metal compounds and has excellent processability, impact strength, and haze, and to a film prepared therefrom.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: July 9, 2024
    Assignee: HANWHA SOLUTIONS CORPORATION
    Inventors: In Jun Lee, Jisong Jo
  • Patent number: 12031022
    Abstract: Disclosed herein are ethylene-based polymers generally characterized by a melt index of less than 15 g/10 min, a density from 0.91 to 0.945 g/cm3, a CY-a parameter at 190° C. from 0.2 to 0.6, an average number of long chain branches per 1,000,000 total carbon atoms of the polymer in a molecular weight range of 500,000 to 2,000,000 g/mol of less than 5, and a maximum ratio of ?E/3? at an extensional rate of 0.03 sec?1 in a range from 3 to 15. The ethylene polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in the lower molecular weight fraction, such that polymer melt strength and bubble stability are maintained for the fabrication of blown films and other articles of manufacture.
    Type: Grant
    Filed: April 29, 2022
    Date of Patent: July 9, 2024
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Errun Ding, Chung Ching Tso, Max P. McDaniel, Ashish M. Sukhadia, Youlu Yu, Randall S. Muninger, Aaron M. Osborn, Christopher E. Wittner
  • Patent number: 12031020
    Abstract: A composition comprising the following components: A) a first ethylene/alpha-olefin interpolymer with a melt index I2A; B) a second ethylene/alpha-olefin interpolymer with a melt index I2B; and wherein the difference in melt index (I2): (I2A?I2B)?400, and wherein I2B?100 g/10 min; C) a filler, and wherein the filler is present in an amount ?50 wt %, based on the weight of the composition; D) a tackifier; and wherein the melt viscosity, at 165 C, of the composition, excluding the filler (component C), is ?30,000 cP.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: July 9, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Stacy L. Pesek, Yushan Hu, Xiaosong Wu, Ronald J. Weeks, Miguel Alberto De Jesus Prieto
  • Patent number: 12030976
    Abstract: In at least one embodiment, a process of forming a polymer includes supplying a feed having one or more olefin monomers and a solvent; contacting the feed with a catalyst to form a reaction mixture; treating the reaction mixture in a first separator to form a first polymer-rich mixture; introducing the first polymer-rich mixture into a second separator; introducing a volatile component and/or inert component into the first separator, the second separator and/or a line between the first separator and the second separator; treating the first polymer-rich mixture to form a second polymer-rich mixture; and devolatilizing the second polymer-rich mixture to obtain the polymer.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: July 9, 2024
    Assignee: ExxonMobil Engineering & Technology Company
    Inventors: Yu F. Wang, Justin R. Huber
  • Patent number: 12024631
    Abstract: The tread of a civil engineering vehicle tire comprises a rubber composition based on at least one elastomer matrix comprising from 50 to 100 phr of a styrene-butadiene copolymer and from 0 to 50 phr of isoprene elastomer; a reinforcing filler comprising predominantly carbon black with CTAB specific surface area greater than or equal to 90 m2/g; from 1 to 30 phr of at least one hydrocarbon resin predominantly consisting of units derived from aromatic and cycloaliphatic monomers, having an aromatic proton content between 0 and 12%, an ethylenic proton content greater than 3%, a number-average molecular weight above 500 g/mol and a polydispersity index greater than 2; and a crosslinking system.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: July 2, 2024
    Assignee: COMPAGNIE GENERALE DES ETALISSEMENTS MICHELIN
    Inventors: Benoit De Gaudemaris, Alain Hut, Laurent Petitjean
  • Patent number: 12024623
    Abstract: A polyolefin composition made from or containing: T1) 50-90 wt % of a recycled polyolefin mixture; and T2) 10-50 wt % of a polyolefin component containing: A) 5-35% by weight of a propylene homopolymer or a propylene ethylene copolymer; B) 20-50% by weight of a copolymer of ethylene and a C3-C8 alpha-olefin made from or containing 0.1-20% by weight of alpha-olefin units; and C) 30-60% by weight of a copolymer of ethylene and propylene made from or containing 25-75% by weight of ethylene units.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: July 2, 2024
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Claudio Cavalieri, Monica Galvan, Marco Ciarafoni
  • Patent number: 12024573
    Abstract: Provided is a method for manufacturing a polymer by a flow-type reaction, including introducing a liquid A containing an anionic polymerizable monomer and a non-polar solvent, a liquid B containing an anionic polymerization initiator and a non-polar solvent, a liquid C containing a polar solvent, and a polymerization terminator into different flow paths; allowing the liquids to flow in the respective flow paths; allowing the liquid A and the liquid B to join together at a joining portion; allowing a conjoined liquid MAB of the liquid A and the liquid B to join with the liquid C at downstream of the joining portion; subjecting the anionic polymerizable monomer to anionic polymerization while a conjoined liquid MABC of the conjoined liquid MAB and the liquid C is flowing to downstream in a reaction flow path; and allowing a polymerization reaction solution flowing in the reaction flow path to join with the polymerization terminator so that the polymerization reaction is terminated and a polymer is obtained, in
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: July 2, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Kenji Wada, Hideki Matsumoto, Kei Harada
  • Patent number: 12018166
    Abstract: A polypropylene/thermoplastic vulcanizate insulative coating is disclosed. The coating is particularly suited for subsea applications, in particular providing insulation to joints in oil well pipes and other machinery. The coating exhibits mechanical properties superior to joint insulation coatings known in the art, especially in combination with other insulation coatings.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: June 25, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Bhawesh Kumar, Rujul M. Mehta
  • Patent number: 12012504
    Abstract: The invention provides a process for the preparation of a multimodal high density polyethylene (HDPE) having a melt flow rate (MFR2) of 0.1 to 4.0 g/10 min, said process comprising: (i) polymerising ethylene in a first polymerisation stage in the presence of a Ziegler-Natta catalyst to prepare a first ethylene homopolymer having a MFR2 from 10 to 500 g/10 min; (ii) polymerising ethylene in a second polymerisation stage in the presence of said catalyst and said first ethylene homopolymer to prepare an ethylene homopolymer mixture comprising said first ethylene homopolymer and a second ethylene homopolymer, said mixture having a MFR2 from 50 to 1000 g/10 min; and (iii) polymerising ethylene and at least one alpha-olefin comonomer in a third polymerisation stage in the presence of said catalyst and said ethylene homopolymer mixture to prepare said multimodal HDPE.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: June 18, 2024
    Assignee: BOREALIS AG
    Inventors: Anh Tuan Tran, Alexandra Romina Albunia, Joy Jie Cheng, Joseph Thorman, John Jamieson, Ravindra Tupe
  • Patent number: 12012527
    Abstract: A polyolefin-based hot melt adhesive composition made from or containing (A) 25-75 wt. % of a copolymer of butene-1 with a Melt Flow Rate, measured according to ISO 1133 (190° C., 2.16 kg), higher than 1500; and (B) 75-25 wt. % of at least one additional component selected from the group consisting of waxes, resins, plasticizers, additional polymers and mixtures thereof, wherein the amounts of A) and B) are referred to the total weight of A)+B).
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 18, 2024
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Roberta Marchini, Silvia Guerra, Stefano Pasquali, Ankur Rastogi, Stefano Spataro
  • Patent number: 12006406
    Abstract: Pellets of an acrylic block copolymer are provided which are imparted with sufficient antiblocking properties without deterioration in the outstanding performance of the acrylic block copolymer such as transparency. A method for producing pellets (D) including an acrylic block copolymer (A) includes bringing raw pellets of an acrylic block copolymer (A) into contact with an aqueous dispersion (C) containing acrylic resin particles (B) and no surfactants, the acrylic block copolymer (A) including at least one polymer block (a1) including acrylic acid alkyl ester units and at least one polymer block (a2) including methacrylic acid alkyl ester units, and removing water attached to the pellets.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: June 11, 2024
    Assignee: KURARAY CO., LTD.
    Inventors: Makoto Akai, Tomohiro Ono, Moe Kawahara
  • Patent number: 12006426
    Abstract: The present invention is directed to a polypropylene composition (P) comprising a bimodal copolymer of propylene and 1-hexene prepared in the presence of a metallocene catalyst, said bimodal copolymer having a melt flow rate MFR2 in the range of 4.0 to 20.0 g/10 min. Further, the present invention is directed to a method for preparing the copolymer (C) and an article comprising said polypropylene composition (P).
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 11, 2024
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Markus Gahleitner, Klaus Bernreitner, Pauli Leskinen, Peter Niedersüss
  • Patent number: 11993672
    Abstract: Disclosed are catalyst compositions having an internal electron donor which includes a 3,6-di-substituted-1,2-phenylene aromatic diester. Ziegler-Natta catalyst compositions containing the present catalyst compositions exhibit very high hydrogen response, high activity, high selectivity and produce propylene-based olefins with high melt flow rate.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: May 28, 2024
    Assignee: W.R. Grace & Co.-Conn.
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao
  • Patent number: 11987655
    Abstract: The present invention relates to polyolefin. More specifically, the present invention relate s to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency and satisfying one of the following 1)˜4): 1) when density is 0.9165 g/cm3 or more and less than 0.9175 g/cm3, the content of SCB (Short Chain Branch) is 9.5 to 10.5 wt %, 2) when density is 0.9175 g/cm3 or more and less than 0.9185 g/cm3, the content of SCB (Short Chain Branch) is 9.0 to 10.0 wt %, 3) when density is 0.9185 g/cm3 or more and less than 0.9195 g/cm3, the content of SCB (Short Chain Branch) is 8.5 to 9.5 wt %, 4) when density is 0.9195 g/cm3 or more and less than 0.9205 g/cm3, the content of SCB (Short Chain Branch) is 7.5 to 8.5 wt %, wherein the density is measured according to ASTM D1505.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 21, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sung Min Lee, Jeongkyu Lee, Hyojoon Lee, Seyoung Kim, Sung Ho Park, Seul Ki Im, Jinyoung Lee, Chang Hwan Jang, Daesik Hong, Jisoo Song
  • Patent number: 11987677
    Abstract: A mechanically and piezoelectrically anisotropic polymer thin film is formed from a crystallizable polymer and an additive configured to interact with the polymer to facilitate chain alignment and, in some examples, create a higher crystalline content within the polymer thin film. The polymer thin film and its method of manufacture may be characterized by a bimodal molecular weight distribution where the molecular weight of the additive may be less than approximately 5% of the molecular weight of the crystallizable polymer. Example polymers may include vinylidene fluoride, trifluoroethylene, chlorotrifluoroethylene, hexafluoropropylene, and vinyl fluoride. Example additives may occupy up to approximately 60 wt. % of the polymer thin film. The polymer thin film may be characterized by a piezoelectric coefficient (d31) of at least approximately 5 pC/N or an electromechanical coupling factor (k31) of at least approximately 0.1.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: May 21, 2024
    Assignee: Meta Platforms Technologies, LLC
    Inventors: Sheng Ye, Hao Mei, Cody Wayne Weyhrich, Arman Boromand, Andrew John Ouderkirk, Christopher Yuan Ting Liao, Emma Rae Mullen, Christopher Stipe, Nagi Hosni Elabbasi, Rui Jian
  • Patent number: 11981765
    Abstract: The present invention provides: a catalyst which has high activity and enables the production of an olefin polymer that has a polar group; and a method for producing the polymer. A catalyst for olefin polymerization, which contains a metal complex represented by general formula (C1); and a method for producing an ethylene (co)polymer, wherein (1) ethylene is polymerized, (2) ethylene and an olefin having a polar group represented by general formula (1) are copolymerized, or (3) ethylene, an olefin having a polar group represented by general formula (1) and another monomer are copolymerized, with use of the above-described catalyst. (In the formulae, the symbols are as defined in the description; and at least one of R6 and R7 represents a 9-fluorenyl analogous group represented by general formula (2).
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: May 14, 2024
    Assignees: THE UNIVERSITY OF TOKYO, Resonac Corporation, JAPAN POLYETHYLENE CORPORATION
    Inventors: Kyoko Nozaki, Junichi Kuroda, Shinya Hayashi, Yoshikuni Okumura, Masahiro Uematsu, Yusuke Mitsushige
  • Patent number: 11981758
    Abstract: A process to form a polymer composition comprising an ethylene-based polymer and a functionalized ethylene-based polymer, said process comprising the steps described herein, which include passing a polymer melt through at least one static mixer, and wherein the functionalized ethylene-based polymer, in melt form, is introduced into the polymer melt, before the polymer melt enters the static mixer.
    Type: Grant
    Filed: November 11, 2017
    Date of Patent: May 14, 2024
    Assignee: Dow Global Technologies LLC
    Inventors: Brian W. Walther, Santosh S. Bawiskar, Jianping Pan
  • Patent number: 11975482
    Abstract: Disclosed is a composition, in particular to a building material for an additive manufacturing process, wherein the composition is treated by heat. Further, the present invention is directed to a process for the manufacturing of the inventive composition and to a device comprising the inventive composition and the use of the inventive composition.
    Type: Grant
    Filed: November 3, 2020
    Date of Patent: May 7, 2024
    Assignee: EOS of North America, Inc.
    Inventors: Richard B. Booth, Ryan A. Corbett, Joseph Tucker
  • Patent number: 11976140
    Abstract: A process for polymerizing polyethylene is disclosed. The process comprises contacting ethylene and at least one comonomer with a catalyst system to produce a polyolefin. The first catalyst and at least a portion of the second catalyst are co-supported to form a commonly-supported catalyst system. The catalyst system is introduced to a line as a dry-feed. The line is coupled with a polymerization reactor. A carrier fluid is added to the line to form a slurry. The slurry is introduced to the polymerization reactor.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: May 7, 2024
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: David F Sanders, Matthew W. Holtcamp, Kevin A. Stevens, Joshua P Olson