Patents Examined by Rip Lee
  • Patent number: 11667776
    Abstract: The present disclosure provides a fiber and fabrics made therefrom. In an embodiment, a fiber is provided and includes an odor control composition. The odor control composition includes (A) from 85 wt % to 99.5 wt % of an olefin-based polymer and (B) from 15 wt % to 0.5 wt % of an odor suppressant. The odor suppressant includes: (i) an ionomer, (ii) particles of zinc oxide, and (iii) particles of copper oxide.
    Type: Grant
    Filed: August 26, 2019
    Date of Patent: June 6, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Scott T. Matteucci, Jeffrey E. Bonekamp, Arkady L. Krasovskiy, Kefu Sun, Keran Lu, Ronald Wevers
  • Patent number: 11661501
    Abstract: Bimodal high-density polyethylene polymer compositions with increased high melt strength and good processability. The compositions comprise a base resin having a density of about 945 kg/m3 to about 955 kg/m3, and an ethylene polymer (A) having a density of at least about 968 kg/m3, in an amount ranging from 45% to 55% by weight and an ethylene polymer (B) having a density lower than the density of polymer (A). The composition has a complex viscosity at a shear rate of 0.01 rad/s ranging from about 200 to 450 kPa·s and a complex viscosity at a shear rate of 100 rad/s ranging from about 1900 to 2500 Pa·s. Articles made from these compositions, such as pipes and fittings achieve long-term oxidative resistance and have a low wall thickness variability while maintaining high production output.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: May 30, 2023
    Assignee: INEOS OLEFINS & POLYMERS USA, A DIVISION OF INEOS USA LLC
    Inventors: Joshua Allen Cottle, Mark Anthony Gessner, Robert Ernest Sander, Luc Dheur
  • Patent number: 11655408
    Abstract: The present invention provides a composition comprising a) a phase change material; b) 1 to 10 wt % of a silica gelling additive; and c) a styrene co-polymer gelling additive; wherein the composition is in the form of a gel and wherein the weight ratio of b) silica gelling additive to c) styrene co-polymer gelling additive in the composition is in the range from 0.6 to 5:1. The invention also provides a method of making the composition and an article and a product comprising the composition. Finally, the invention provides the use of a combination of a silica gelling additive and a styrene co-polymer gelling additive to make a gel composition comprising a phase change material with one or more improved properties.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: May 23, 2023
    Assignee: CRODA INTERNATIONAL PLC
    Inventors: Altug Altay, Marco Maria Auerbach
  • Patent number: 11649305
    Abstract: A unimodal ethylene-co-1-hexene copolymer that, when in melted form at 190 degrees Celsius, is characterized by a unique melt property space defined by combination of melt elasticity and complex viscosity ratio (shear thinning)properties. A blown film consisting essentially of the unimodal ethylene-co-1-hexene copolymer. A method of synthesizing the unimodal ethylene-co-1-hexene copolymer. A method of making the blown film. A manufactured article comprising the unimodal ethylene-co-1-hexene copolymer.
    Type: Grant
    Filed: July 29, 2019
    Date of Patent: May 16, 2023
    Assignee: Univation Technologies, LLC
    Inventors: Bo Liu, Yi Zhang, Ayush A. Bafna, François Alexandre, Robert N. Reib
  • Patent number: 11649301
    Abstract: An activator-nucleator formulation comprising an activating effective amount of (A) an alkylaluminum(chloride) compound (compound (A)); and a nucleating effective amount of a compound (B) selected from at least one of compounds (B1) to (B3): (B1) calcium (1R,2S)-cis-cyclohexane-1,2-dicarboxylate (1:1); (B2) calcium stearate (1:2), and (B3) zinc stearate (1:2); wherein the compound (A) is effective for activating a Ziegler-Natta procatalyst to give a Ziegler-Natta catalyst; and wherein the compound (B) is effective for lowering isothermal crystallization peak time period of a semicrystalline polyethylene polymer made in a polymerization process by the Ziegler-Natta catalyst. A method of polymerizing ethylene, and optionally 0, 1, or more alpha-olefin comonomers, in a polymerization process conducted in a polymerization reactor, the method comprising contacting ethylene, and optionally 0, 1, or more alpha-olefin comonomers, with the Ziegler-Natta catalyst system to give a semicrystalline polyethylene polymer.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: May 16, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Nitin Borse, Zhenshuo Bobby Liu, Ian M. Munro, Swapnil B. Chandak
  • Patent number: 11649256
    Abstract: The present disclosure provides catalyst compounds represented by Formula (I): where Q is OR13, SR13, NR13R14, PR13R14, or a heterocyclic ring; each R1-14 is independently hydrogen, C1-C40 hydrocarbyl, substituted C1-C40 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or multiple R1-14 are joined together to form a C4-C62 cyclic, heterocyclic, or polycyclic ring structure, or combination(s) thereof; each X1 and X2 is independently C1-C20 hydrocarbyl, substituted C1-C20 hydrocarbyl, a heteroatom, or a heteroatom-containing group, or X1 and X2 join together to form a C4-C62 cyclic, heterocyclic, or polycyclic ring structure; and Y is a hydrocarbyl. The present disclosure also provides catalyst systems including an activator, a support, and a catalyst of the present disclosure. The present disclosure also provides polymerization processes including introducing olefin monomers to a catalyst system.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: May 16, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Gursu Culcu, Catherine A. Faler, Crisita Carmen H. Atienza, David A. Cano, John R. Hagadorn
  • Patent number: 11643483
    Abstract: The polyethylene according to the present disclosure has a molecular structure having a narrow particle distribution and a low content of ultra-high molecular weight, so that a chlorinated polyethylene having excellent chlorination productivity and thermal stability may be prepared by reacting the polyethylene with chlorine. And, a PVC composition including the same with improved impact strength may also be prepared.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: May 9, 2023
    Inventors: Si Jung Lee, Bog Ki Hong, Sunghyun Park, Sun Mi Kim, Yi Young Choi, Cheolhwan Jeong, Jinseok Lee
  • Patent number: 11643536
    Abstract: Provided is a sheet not generating feeding failure in a device having a heat setting process even when a large amount of an inorganic filler is included and a thermoplastic resin composition for forming the sheet. The thermoplastic resin composition may include at least a thermoplastic resin and an inorganic filler, in which the thermoplastic resin includes polypropylene having no long chain branch (B) and polypropylene having a long chain branching structure (A) in a mass ratio of 80:20 to 98:2.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: May 9, 2023
    Assignee: TBM CO., LTD.
    Inventors: Shigeki Kuroki, Gouki Sasakawa
  • Patent number: 11639435
    Abstract: Disclosed is a method using a metallocene catalyst system so as to control the polymer structure of a diene-modified polypropylene through process simplification, thereby being capable of preparing a hyperbranched polypropylene resin having a low gel content and improved melt strength. The present invention provides a method using a catalyst so as to polymerize propylene and a diene compound, thereby preparing a diene-modified polypropylene resin having a branching index of 0.95 or less, a gel content of 3 wt % or less and an advanced rheometric expansion system (ARES) melt strength of 5 g or more.
    Type: Grant
    Filed: August 21, 2018
    Date of Patent: May 2, 2023
    Assignee: LOTTE CHEMICAL CORPORATION
    Inventors: Hyun Yul Woo, Rai Ha Lee, Su Jeong Jeong, Joon Keun Min, Eun Hye Shin, Byung Hun Chae
  • Patent number: 11636923
    Abstract: Disclosed are high-pressure polymerization methods and systems using optimized operation sequence logic established at least partly from an analysis of a database containing data of previous operations. The optimized operation sequence logic and collected current process and system data are used to automate the operation of a high pressure ethylene polymerization process and unit.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: April 25, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Steven R. De Ceuster, Ludo W. J. Alen, Daniel E. Milam
  • Patent number: 11634615
    Abstract: A resin composition contains one or more 2-methylene-1,3-dicarbonyl compounds. At least one of the one or more 2-methylene-1,3-dicarbonyl compounds has a molecular weight of 220 to 10,000, and the amount by weight of those of the 2-methylene-1,3-dicarbonyl compounds having a molecular weight of less than 220 relative the entire resin composition of 1 is 0.00 to 0.05. The 2-methylene-1,3-dicarbonyl compounds contain a structural unit represented by formula (I) below.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: April 25, 2023
    Assignee: NAMICS CORPORATION
    Inventors: Fuminori Arai, Kazuki Iwaya
  • Patent number: 11634521
    Abstract: Catalyst compositions containing a metallocene compound, a solid activator, and a co-catalyst, in which the solid activator or the supported metallocene catalyst has a d50 average particle size of 15 to 50 ?m and a particle size distribution of 0.5 to 1.5, can be contacted with an olefin in a loop slurry reactor to produce an olefin polymer. A representative ethylene-based polymer produced using the catalyst composition has excellent dart impact strength and low gels, and can be characterized by a HLMI from 4 to 10 g/10 min, a density from 0.944 to 0.955 g/cm3, a higher molecular weight component with a Mn from 280,000 to 440,000 g/mol, and a lower molecular weight component with a Mw from 30,000 to 45,000 g/mol and a ratio of Mz/Mw ranging from 2.3 to 3.4.
    Type: Grant
    Filed: August 17, 2022
    Date of Patent: April 25, 2023
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Carlton E. Ash, Kathy S. Clear, Eric D. Schwerdtfeger, Carlos A. Cruz, Jeremy M. Praetorius
  • Patent number: 11634520
    Abstract: A process of preparing a solid catalyst component for the production of polypropylene includes a) dissolving a halide-containing magnesium compound in a mixture, the mixture including an epoxy compound, an organic phosphorus compound, and a hydrocarbon solvent to form a homogenous solution; b) treating the homogenous solution with an organosilicon compound during or after the dissolving step; c) treating the homogenous solution with a first titanium compound in the presence of a first non-phthalate electron donor, and an organosilicon compound, to form a solid precipitate; and d) treating the solid precipitate with a second titanium compound in the presence of a second non-phthalate electron donor to form the solid catalyst component, where the process is free of carboxylic acids and anhydrides.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: April 25, 2023
    Assignee: W.R. Grace & Co.-CONN.
    Inventors: Vladimir P. Marin, Ahmed Hintolay
  • Patent number: 11623981
    Abstract: The ultrahigh-molecular-weight polyethylene powder of the present invention is an ultrahigh-molecular-weight polyethylene powder having a viscosity-average molecular weight Mv of 10×104 or higher and 1000×104 or lower, wherein viscosity-average molecular weight Mv(A) of a kneaded product obtained by kneading under specific kneading conditions, and the Mv satisfy the following relationship: “{Mv?Mv(A)}/Mv is 0.20 or less”, and the ultrahigh-molecular-weight polyethylene powder contains an ultrahigh-molecular-weight polyethylene powder having a particle size of 212 ?m or larger, wherein the powder having a particle size of 212 ?m or larger has an average pore volume of 0.6 ml/g or larger and an average pore size of 0.3 ?m or larger.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 11, 2023
    Assignee: Asahi Kasei Kabushiki Kaisha
    Inventor: Koichi Tsujimoto
  • Patent number: 11618791
    Abstract: A method of producing a supported catalyst includes introducing a dissolved catalyst solution into a catalyst mix vessel, and after introducing the dissolved catalyst solution into the catalyst mix vessel, introducing a porous support material into the catalyst mix vessel. The catalyst mix vessel is then operated to contact the dissolved catalyst solution on the porous support material and thereby generate the supported catalyst, and the supported catalyst is discharged from the catalyst mix vessel.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: April 4, 2023
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Brian R. Berg, Handel D. Bennett, Chi-I Kuo, Robert L. Griffin, Chelsey M. Broussard, Bruce J. Savatsky
  • Patent number: 11618801
    Abstract: A prepolymer is prepared by subjecting a compound of Formula (I) and a vinyl-containing compound to a prepolymerization reaction, and a resin composition includes the prepolymer. The vinyl-containing compound includes bis(vinylphenyl) ethane, divinylbenzene, modification of divinylbenzene or a combination thereof. A ratio in part by weight of the compound of Formula (I) to the vinyl-containing compound in the prepolymerization reaction is 8:2 to 6:4. The resin composition includes the prepolymer and an additive, and an article made from the resin composition may include a resin film, a prepreg, a laminate or a printed circuit board.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: April 4, 2023
    Assignee: ELITE MATERIAL CO., LTD.
    Inventor: Chen-Yu Hsieh
  • Patent number: 11613594
    Abstract: The present invention provides a crosslinked molded article having a lower compression set; and a method for producing a crosslinked molded article by injection molding, the method enabling shortening of one cycle in injection molding, the method being suitable for obtaining a crosslinked molded article having a lower compression set. The present invention relates to a method for producing a crosslinked molded article, comprising melt-kneading a polymer composition containing a polymer having a terminal double bond, a hydrosilyl group-containing compound (Y) having at least two hydrosilyl groups per molecule, a platinum-based catalyst (Z) for hydrosilicon crosslinking, and a reaction inhibitor (D), subjecting the polymer composition to injection molding in a mold, performing primary crosslinking in the mold, removing the primary-crosslinked molded article from the mold, and then performing secondary crosslinking in a heat medium.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: March 28, 2023
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsuya Sakai, Ryohei Saeki, Kiyohide Inomata, Yoshiharu Kikuchi, Kotaro Ichino
  • Patent number: 11608432
    Abstract: The invention relates to a pellet comprising a thermoplastic polymer sheath intimately surrounding glass filaments, which glass filaments are covered at least in part with an impregnating agent and extend in a longitudinal direction of said pellets, wherein the thermoplastic polymer sheath is prepared from a thermoplastic polymer composition comprising A) a heterophasic propylene copolymer consisting of a propylene-based matrix and a dispersed ethylene-?-olefin copolymer, wherein the heterophasic propylene copolymer has a melt flow rate of at least 40 g/10 min as determined in accordance with ISO 1133 (230° C., 2.16 kg) and a FOG value of at most 350 ?g/g as determined by VDA 278, wherein the glass filaments are present in an amount of 10-70 wt % based on the pellet.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: March 21, 2023
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Benoit Therese Philippe Lecouvet, Christelle Marie Helene Grein
  • Patent number: 11602909
    Abstract: An object of the present invention is to provide a tire sealant and a tire repair kit that exhibit excellent injectability. Provided is a tire sealant including a natural rubber latex, a synthetic resin emulsion, an anti-freezing agent, a surfactant, and a chelating agent, wherein the content of the chelating agent is 0.1 mass % or greater.
    Type: Grant
    Filed: July 24, 2017
    Date of Patent: March 14, 2023
    Assignee: The Yokohama Rubber Co., Ltd.
    Inventors: Takahiro Okamatsu, Masahiro Naruse
  • Patent number: 11603452
    Abstract: Embodiments of polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer having at least three ethylene-based components, wherein the multimodal ethylene-based polymer exhibits improved toughness.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: March 14, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Carl N. Iverson, Arnaldo T. Lorenzo, Yijian Lin, Mehmet Demirors, Didem Oner-Deliormanli, David T. Gillespie