Component A Metal Is Group Ia, Iia Or Iiia And Component B Metal Is Group Ivb To Viib Or Viii (i.e., Alkali Metal, Alkaline Earth Metal, Be, Mg, Al, Ga, In Or Tl And Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Iron Group Or Platinum Group) (e.g., Ziegler Catalyst, Etc.) Patents (Class 502/103)
  • Patent number: 11572375
    Abstract: Disclosed are catalyst systems comprising the reaction product of at least the following: A) a procatalyst; and B) at least one cocatalyst structure selected from the following i) through iii): i) at least one cocatalyst comprising an anion having Structure 1 as shown below: ?as described herein; or ii) at least one cocatalyst comprising an anion having Structure 2 as shown below: ?as described herein; or iii) a combination of i and ii.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 7, 2023
    Assignees: DOW GLOBAL TECHNOLOGIES, LLC, THE TEXAS A&M UNIVERSITY SYSTEM
    Inventors: Jerzy Klosin, Rafael Huacuja, Oleg V. Ozerov, Jessica De Mott
  • Patent number: 11548838
    Abstract: The present invention provides a one-pot process of synthesis of phenyl naphthalene compounds that are employed as heat transfer agents. More particularly, the present invention provides a process of preparation of 1-phenylnaphthalene and 2-methyl-1-phenylnaphthalene using refinery spent catalyst. These molecules are known for application as synthetic heat transfer fluids that deliver outstanding performance and thermal stability at continuously high operating temperatures. The reaction is carried out in aqueous medium using a spent catalyst which is a palladium based charcoal catalyst as obtained from various refinery processes. Further, the present invention provides a heat resistant formulation using the synthesized polyhydrocarbons, wherein the formulation is optimized with a free radical scavenger.
    Type: Grant
    Filed: January 28, 2022
    Date of Patent: January 10, 2023
    Assignee: INDIAN OIL CORPORATION LIMITED
    Inventors: Tanmay Mandal, Krishna Vankudoth, Manisha Saraswat, Ajay Kumar Arora, Vivekanand Kagdiyal, Deepak Saxena, Sankara Sri Venkata Ramakumar
  • Patent number: 11530177
    Abstract: This disclosure provides processes for forming acrylic acid and other ?,?-unsaturated carboxylic acids and their salts, including catalytic processes, and catalyst systems for effecting the processes. For example, there is provided a catalyst system for producing an ?,?-unsaturated carboxylic acid or a salt thereof, the catalyst system comprising: (a) a transition metal precursor compound comprising a Group 8-11 transition metal and at least one first ligand; (b) optionally, at least one second ligand; and (c) an anionic polyaromatic resin with associated metal cations. The catalyst system can further comprise (d) an olefin; (e) carbon dioxide (CO2); and (f) a diluent. Methods of regenerating the anionic polyaromatic resin with associated metal cations are described.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: December 20, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Pasquale Iacono, Mark L. Hlavinka
  • Patent number: 11505683
    Abstract: This invention is based upon the unexpected finding that a hydrocarbon traction resin can be dispersed into the oil used in making an oil extended emulsion and solution rubbers to attain improved performance characteristics. For instance, this technique allows for the hydrocarbon traction resin to be incorporated into the rubber at a higher level than would ordinarily be possible using conventional mixing techniques. In tire tread compounds this provides improved wet traction characteristics without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). This technique can be used to incorporate a resin into virtually any synthetic rubber that can benefit from being oil extended. It is of particular value in making resin modified solution styrene-butadiene rubber (SSBR), emulsion styrene-butadiene rubber (ESBR), high cis-1.4-polybutadiene rubber, and synthetic polyisoprene rubber which are formulated for use in tire tread compounds.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: November 22, 2022
    Assignee: THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Nihat Ali Isitman, Robert Alan Woloszynek, Joseph John Kulig, Hannah Long, Manuela Pompei, Jennifer Labbe
  • Patent number: 11492429
    Abstract: What is disclosed is a Ziegler-Natta catalyzed ethylene and alpha-olefin LLDPE copolymer having a unique composition distribution and long chain-branching. The polymers of the present invention inherently exhibit outstanding melt strength with great bubble stability, sufficient flexibility, excellent gel performance, as well as desirable mechanical properties such as balanced toughness and stiffness, which are desirable properties for thick gauge film applications. Specifically, the polymers of the present invention.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: November 8, 2022
    Assignee: Formosa Plastics Corporation, U.S.A.
    Inventors: Peng Li, Ming-Yung Lee, Tieqi Li, Honglan Lu
  • Patent number: 11479663
    Abstract: The invention relates to a composition comprising: (A) a propylene-based polymer which is a propylene homopolymer or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene monomer units and/or an ?-olefin monomer units having 4 to 10 carbon atoms, (B) a terpolymer of propylene, an ?-olefin having 4 to 10 carbon atoms and ethylene and (C) a copolymer of ethylene and an ?-olefin having 4 to 10 carbon atoms, wherein the copolymer (C) has a density of at least 0.880 g/cm3, wherein the amount of the propylene-based polymer (A) is at least 60 wt % with respect to the total composition.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: October 25, 2022
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Jing Guo, Xiqiang Liu, Chaodong Jiang, Shengying Qian, Chunfa Li
  • Patent number: 11478782
    Abstract: A catalyst is provided having: (a) at least one multimetallic salt; and (b) at least one organic acid, wherein the at least one multimetallic salt to the at least one organic acid weight ratio is in the range of 1:0.01-1:0.5. A process is also provided for the preparation of the catalyst and for the preparation of the multimetallic salt.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: October 25, 2022
    Assignee: Hindustan Petroleum Corporation Limited
    Inventors: Naresh Kottari, Kanuparthy Naga Raja, Siva Kesava Raju Chintalapati, Satyanarayana Murty Pudi, Bhavesh Sharma, Ramkumar Mangala, Peddy Venkat Chalapathi Rao, Nettem Venkateswarlu Choudary, Gandham Sriganesh
  • Patent number: 11458462
    Abstract: Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst having a structure according to Formula (VI) or Formula (VII). In Formulas (VI) and (VII), X is a halogen, a (C2-C30) carboxylate, acetylacetonate, or a (C1-C30) hydrocarbyl; L1 is a neutral coordinating ligand; n is an integer from 0 to 6; Y is a (C6-C20)fluorine-substituted aryl, a (C6-C20)fluorine-substituted aryloxy, or a (C1-C20)fluorine-substituted alkoxy; and L?L is a bidentate chelating ligand. The catalyst system may also include an aluminum containing agent which includes a reaction product of an organoaluminum compound and an antifouling compound. The antifouling compound may include one or more chlorinated hydrocarbons, chloro-aluminum alkyls, or combinations of these.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 4, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Sohel Shaikh, Motaz Khawaji, Wei Xu
  • Patent number: 11459413
    Abstract: Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I21/I2) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: October 4, 2022
    Assignee: Univation Technologies, LLC
    Inventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
  • Patent number: 11458463
    Abstract: Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst having a structure according to Formula (VI) or Formula (VII). In Formulas (VI) and (VII), X is a halogen, a (C2-C30) carboxylate, acetylacetonate, or a (C1-C30) hydrocarbyl; L1 is a neutral coordinating ligand; n is an integer from 0 to 6; Y is a (C6-C20)fluorine-substituted aryl, a (C6-C20)fluorine-substituted aryloxy, or a (C1-C20)fluorine-substituted alkoxy; and L?L is a bidentate chelating ligand. The catalyst system may also include an aluminum containing agent which includes a reaction product of an organoaluminum compound and an antifouling compound. The antifouling compound may include one or more polyether alcohols or one or more non-polymeric ethers.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: October 4, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Motaz Khawaji, Sohel Shaikh, Wei Xu
  • Patent number: 11440857
    Abstract: Catalyst systems suitable for tetramerizing ethylene to form 1-octene may include a catalyst including a reaction product of a chromium compound and a ligand having the structure according to Formula (II). In Formula (II), A and C may be independently chosen from phosphorus, arsenic, antimony, bismuth, and nitrogen; B may be a linking group between A and C; and R1, R2, R3, and R4 may be independently chosen from a (C1-C50) hydrocarbyl or a (C1-C50) heterohydrocarbyl. The catalyst system may include a co-catalyst including a reaction product of an organoaluminum compound and an antifouling compound. The antifouling compound may include one or more quaternary salts; one or more organic acids, organic acid salts, esters, anhydrides, or combinations of these; one or more chlorinated hydrocarbons, chloro-aluminum alkyls, or combinations of these; one or more polyether alcohols; or one or more non-polymeric ethers.
    Type: Grant
    Filed: November 30, 2021
    Date of Patent: September 13, 2022
    Assignee: Saudi Arabian Oil Company
    Inventors: Motaz Khawaji, Sohel Shaikh, Wei Xu
  • Patent number: 11380897
    Abstract: Disclosed in the present disclosure is a preparation method of a graphene flower, mainly lying in spray-drying graphene oxide solution to obtain a graphene oxide flower and then performing reduction on the same to obtain a graphene flower. Also disclosed in the present disclosure is use of the graphene flower in a lithium sulfur battery. The present disclosure is easy to operate, low cost, and suitable for scaled production, can improve the rate capability of a lithium sulfur battery while ensuring the high energy ratio of the lithium sulfur battery, thus greatly improving the energy density thereof, and can be applied in the field of high energy storage material and devices.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: July 5, 2022
    Assignee: ZHEJIANG UNIVERSITY
    Inventors: Chao Gao, Hao Chen
  • Patent number: 11370854
    Abstract: A solid catalyst component for use in olefinic polymerization, includes titanium, magnesium, a halogen, and an internal electron donor compound; wherein: the internal electron donor compound is at least one compound represented by Formula (I)):
    Type: Grant
    Filed: April 1, 2020
    Date of Patent: June 28, 2022
    Assignees: Braskem America, Inc., W.R. Grace & Co.-CONN.
    Inventors: Binh Thanh Nguyen, Jonas Alves Fernandes, Vladimir P. Marin, Mushtaq Ahmed Patel
  • Patent number: 11325994
    Abstract: Disclosed is a catalyst component for olefin polymerization. The catalyst component comprises magnesium, titanium, halogen and an internal electron donor. The internal electron donor includes an imine compound with a ketone group as shown in Formula I. Disclosed further is a method of preparing the catalyst component, and a catalyst for olefin polymerization containing the catalyst component. When the catalyst is used in olefin polymerization reaction especially propene polymerization reaction, the catalyst has a high activity and a long term activity and good hydrogen response, and the obtained polymer has characteristics of an adjustable isotactic index and a relatively wide molecular weight distribution.
    Type: Grant
    Filed: September 22, 2017
    Date of Patent: May 10, 2022
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION
    Inventors: Jun Wang, Mingzhi Gao, Haitao Liu, Jing Ma, Jixing Ma, Xiaoxia Cai, Jianhua Chen, Jianjun Hu, Changxiu Li, Zhihui Zhang, Ruilin Duan, Changyou Ma
  • Patent number: 11325928
    Abstract: A modified spray-dried Ziegler-Natta (pro)catalyst system comprising a Ziegler-Natta (pro)catalyst, a carrier material, and a tetrahydrofuran/ethanol modifier; polyolefins; methods of making and using same; and articles containing same.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 10, 2022
    Inventors: Wesley R. Mariott, C. Dale Lester, Phuong A. Cao, Michael D. Awe, Nitin Borse
  • Patent number: 11046858
    Abstract: Disclosed herein are embodiments of a composition comprising at least one cellulose material (such as a cellulose nanomaterial) and an optional inorganic salt component. Some embodiments of the composition can further comprise additional components, with some embodiments further comprising a non-starch polysaccharide (e.g., methyl cellulose carboxymethyl cellulose or other cellulose derivative, chitosan, or the like), a surfactant, a plasticizer, an antimicrobial component, or any combination thereof. The disclosed compositions are useful for forming edible coatings/films on plants, plant parts, and other objects. The disclosed compositions and coatings/films made using the compositions are effective at protecting fresh and processed produce and other substances and products, from various different types of food processing damage (and the deleterious effects associated therewith).
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 29, 2021
    Assignee: Oregon State University
    Inventors: Yanyun Zhao, John Simonsen, George Cavender, Jooyeoun Jung, Leslie H. Fuchigami
  • Patent number: 11028192
    Abstract: This invention relates to a process to polymerize olefins comprising contacting, in solution phase at a temperature of 60° C. to 200° C., ethylene, and at least one olefin comonomer with a catalyst system comprising a non-coordinating anion activator and a metallocene catalyst compound, preferably represented by the formula: and 2) obtaining ethylene polymer having an Mw greater than 100,000 g/mol, preferably greater tha 400,000 g/mol.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 8, 2021
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Donna J. Crowther, Hua Zhou, Jacqueline A. Lovell
  • Patent number: 10954327
    Abstract: A method is described for the formation of an active catalyst system for use in the in-line bulk polymerization of polydienes. The method provides a homogeneous, active catalyst system which is capable of being transported to a polymerization reactor for use without causing blockages in piping, thereby saving time and production costs. The catalyst system is formed in-line in a continuous method to avoid prolonged storage periods of the catalyst that can otherwise lead to degradation and disposal of the aged catalyst system.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 23, 2021
    Assignee: Bridgestone Corporation
    Inventor: Kevin M. McCauley
  • Patent number: 10919992
    Abstract: Provided are a novel indene-based transition metal complex, a transition metal catalyst composition including the same having high catalyst activity for preparing an ethylene homopolymer or copolymers of ethylene and one or more ?-olefins, a method for preparing an ethylene homopolymer or copolymers of ethylene and ?-olefins using the same, and the thus-prepared ethylene homopolymer or copolymers of ethylene and ?-olefins.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: February 16, 2021
    Assignee: SABIC SK NEXLENE COMPANY PTE. LTD.
    Inventors: Dong-cheol Shin, Yeonock Oh
  • Patent number: 10889662
    Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 12, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Eun Young Shin, Heon Yong Kwon, Se Young Kim, Hyun Jee Kwon, Dae Sik Hong, Sung Min Lee, Ki Soo Lee
  • Patent number: 10822438
    Abstract: Disclosed are a catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, internal donors, in combination with a silane and oxalic acid diamides of the following formula: An olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound is also disclosed. Employment of both oxalic acid diamides and silane component in the presence of internal electron donors as an elements of solid Ziegler-Natta type catalyst composition enhances stereo-specificity while maintaining excellent catalyst activity and hydrogen response, in which the modified catalyst composition produces polypropylene with good productivity and higher stereo-specificity than catalyst composition without such modification.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 3, 2020
    Assignee: Formosa Plastics Corporation
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Yiqun Fang, Demin Xu, Guangxue Xu
  • Patent number: 10793654
    Abstract: Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 6, 2020
    Assignee: Union Carbide Corporation
    Inventors: Burkhard E. Wagner, Robert C. Job, Ann M. Schoeb-Wolters, Robert J. Jorgensen
  • Patent number: 10676553
    Abstract: Silica-coated alumina activator-supports, and catalyst compositions containing these activator-supports, are disclosed. Methods also are provided for preparing silica-coated alumina activator-supports, for preparing catalyst compositions, and for using the catalyst compositions to polymerize olefins.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: June 9, 2020
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Randy S. Muninger, Elizabeth A. Benham, Kathy S. Clear
  • Patent number: 10633471
    Abstract: An object of the present invention is to provide a polyethylene-based resin composition excellent in the moldability and at the same time, excellent in the balance between impact strength and stiffness as well as in the transparency, and a molded product and a film, which are obtained by the molding of the polyethylene-based resin composition. The polyethylene-based resin composition of the present invention comprises from 41 to 99 wt % of (A) an ethylene-based polymer satisfying specific conditions and from 1 to 59 wt % of (B) an ethylene-based polymer satisfying specific conditions, wherein MFR of the composition as a whole is from 0.05 to 50 g/10 min and the density is from 0.910 to 0.960 g/cm3.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: April 28, 2020
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki Ishihama, Ryousuke Asakawa, Tsutomu Sakuragi, Tetsurou Fukuda, Kazuya Sakata, Masaru Aoki, Kenji Kawagishi, Keiichi Yoshimoto
  • Patent number: 10626199
    Abstract: Propylene is polymerised in the presence of a polymerisation catalyst comprising a solid catalyst component, an organoaluminium compound and an external electron donor, the process comprising the steps of (i) contacting propylene and hydrogen with the polymerisation catalyst in polymerisation conditions in a polymerisation reactor to produce a polymer of propylene; (ii) recovering the polymer of propylene from the polymerisation reactor; wherein the polymer of propylene has MFR of from more than 100 to 10000 g/10 min.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 21, 2020
    Assignee: BOREALIS AG
    Inventors: Pauli Leskinen, Johanna Lilja, Jingbo Wang, Markus Gahleitner, Thomas Horill, Peter Denifl, Cornelia Tranninger
  • Patent number: 10513572
    Abstract: Polymerization process control methods for making polyethylene are provided. The process control methods include performing a polymerization reaction in a polymerization reactor to produce the polyethylene, where ethylene, and optionally one or more comonomers, in the polymerization reaction is catalyzed by an electron donor-free Ziegler-Natta catalyst and an alkyl aluminum co-catalyst. A melt flow ratio (I21/I2) of the polyethylene removed from the polymerization reactor is measured and an amount of long chain branching (LCB) of the polyethylene from the polymerization reactor is controlled by adjusting a weight concentration of the alkyl aluminum co-catalyst present in the polymerization reactor.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: December 24, 2019
    Assignee: Univation Technologies, LLC
    Inventors: Wesley R. Mariott, Kevin J. Cann, John H. Moorhouse, Mark G. Goode, Thomas Oswald
  • Patent number: 10442880
    Abstract: The various embodiments of the invention provide, a magnesium titanium polymerization procatalyst, methods for making and using the same.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: October 15, 2019
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Qinyan Wang, Helena Ouskine, Mohamed Aiffa, Amy Baltimore, Holly Severin, Perry Dewit, Steven Clemens, Lawrence Martin Josef Van Asseldonk, Isam Jaber
  • Patent number: 10435336
    Abstract: A composition comprising: a) at least 76 mol % C10 monoolefins, the C10 monoolefins comprising i) at least 3 mol % 2-butyl-1-hexene, ii) at least 8 mol % 3-propyl-1-heptene, iii) at least 6 mol % 4-ethyl-1-octene, and iv) at least 20 mol % 5-methyl-1-nonene; and b) at least 1 mol % C14 monoolefins. A composition comprising at least 95 mol % C10 monoolefins, the C10 monoolefins comprising i) at least 3 mol % 2-butyl-1-hexene, ii) at least 10 mol % 3-propyl-1-heptene, iii) at least 7 mol % 4-ethyl-1-octene, and iv) at least 24 mol % 5-methyl-1-nonene. Processes to prepare a composition comprising at least 76 mol % C10 monoolefins and at least 1 mol % C14 monoolefins, or a composition comprising at least 95 mol % C10 monoolefins, where the C10 monoolefins comprise i) at least 3 mol % 2-butyl-1-hexene, ii) at least 10 mol % 3-propyl-1-heptene, iii) at least 7 mol % 4-ethyl-1-octene, and iv) at least 24 mol % 5-methyl-1-nonene.
    Type: Grant
    Filed: January 8, 2018
    Date of Patent: October 8, 2019
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Bruce E. Kreischer, Ronald D. Knudsen
  • Patent number: 10377839
    Abstract: Solid adducts comprising MgCl2, ethanol and water characterized in that the amount of ethanol ranges from 50% to less than 57% by weight, the amount of water is ranges from 0.5 to 5% by weight, the ethanol/water weight ratio is lower than 60 and the porosity determined with Hg method due to pores with radius up to 1 ?m and expressed in cm3/g, is lower than 0.2.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: August 13, 2019
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Daniele Evangelisti, Fabiana Fantinel, Benedetta Gaddi, Diego Brita, Gianni Collina
  • Patent number: 10358511
    Abstract: Both a system and method for cleaning a low pressure separation vessel of a high pressure polyethylene polymerization plant are provided. The system includes a polytetrafluoroethylene lining that covers the interior surfaces of the vessel, and a cover mounting assembly including an annular clamp for detachably mounting a cover over the vessel. The mounting assembly includes a clamp actuator for quickly securing and releasing the cover with respect to a top rim of the vessel. The vessel is drained of liquid polyethylene and allowed to cool to ambient temperature, thus creating a frozen “skin” of polyethylene around the interior surfaces of the vessel. The clamp actuator releases the cover. The polyethylene skin is peeled off the interior sides the vessel and gathered up at the top to form a neck, thus peeling the polyethylene skin away from the polytetrafluoroethylene lining along with any degraded polymers or other impurities that have accumulated on the interior surfaces of the vessel.
    Type: Grant
    Filed: January 13, 2017
    Date of Patent: July 23, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Philip H. Cornelissen, Henri A. Lammens, Fausto F. Ciancio, Christopher K. Morgan, Leo E. Reynders
  • Patent number: 10344102
    Abstract: Provided is an olefin-based polymer with excellent processability. The olefin-based polymer according to the present invention has a high molecular weight and a broad molecular weight distribution to show excellent processability and improved mechanical properties, thereby being usefully applied according to the intended use.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: July 9, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Joong Soo Kim, Yu Taek Sung, Ki Soo Lee, Dae Sik Hong, Ki Heon Song, Eun Kyoung Song, Heon Yong Kwon, Yong Ho Lee, Dong Hoon Jeong, Soon Ho Sun, Sun Mi Kim
  • Patent number: 10259896
    Abstract: The present disclosure relates to a single-pot multi step process for the preparation of a shape controlled pro-catalyst. The process comprises the steps of: i. reacting magnesium metal and at least one alkanol to obtain spheroidal magnesium alkoxide; ii. treating the spheroidal magnesium alkoxide with at least one transition metal tetrahalide, at least one organic modifier, and optionally, at least one in-organic modifier in the presence of at least one solvent to obtain a reaction mixture; iii. cooling, settling the reaction mixture and decanting the supernatant; iv. adding at least one transition metal tetrahalide, at least one solvent and optionally, at least one organic or inorganic modifier; and v. iterating steps (iii) and (iv) to obtain the shape controlled pro-catalyst.
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: April 16, 2019
    Assignee: Reliance Industries Limited
    Inventors: Virendrakumar Gupta, Sanjay Govindbhai Chauhan, Hiren Manojkumar Bhajiwala, Shakil Shabbir Sayyed, Suketu Vakil
  • Patent number: 10253117
    Abstract: The invention describes a process for producing a diene polymer, the process including the following steps in this order i) polymerizing one or more diene monomers in the presence of a catalyst composition to give a reaction mixture; ii) adding to the reaction mixture one or more alkoxysilane compounds; iii) adding S2Cl2, SCl2, SOCl2, S2Br2, SOBr2 or a mixture thereof to the reaction mixture; and iv) optionally adding a protic agent to the reaction mixture so as to deactivate the catalyst. The invention further includes polymers that are obtainable according to this process, as well as products including the polymer.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: April 9, 2019
    Assignee: TRINSEO EUROPE GMBH
    Inventors: Thomas D. Ruehmer, Sven Thiele, Anke Schmudde, Dieter Bellgardt
  • Patent number: 10239964
    Abstract: A method for manufacturing a conjugated diene polymer that can increase the robustness of a polymerization reaction system is provided. Also, a conjugated diene polymer, with a high cis-1,4-bond content, that is manufactured by this method for manufacturing is provided. A method for manufacturing a conjugated diene polymer includes polymerizing a conjugated diene monomer using a polymerization catalyst composition including a rare earth element compound and a compound having a cyclopentadiene skeleton, and a conjugated diene polymer manufactured with this method for manufacturing has a cis-1,4-bond content of 95% or greater.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: March 26, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yusuke Yamagata, Narukuni Hirata, Tomoe Tanabe, Shojiro Kaita, Madoka Kimura
  • Patent number: 10202475
    Abstract: Extrusion blow molded article comprising a propylene copolymer having a high bottle appearance factor and good impact properties.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: February 12, 2019
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Johanna Lilja, Markus Gahleitner, Juliane Braun
  • Patent number: 10189916
    Abstract: The present disclosure provides a novel transition metal compound having excellent structural stability together with polymerization reactivity, and thereby is useful as a catalyst in preparing an olefin-based polymer, particularly, a low density olefin-based polymer, and a catalyst composition including the same.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: January 29, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Yoon Hee Cho, Jung Ho Jun, Jin Sam Gong, Choong Hoon Lee, Seung Hwan Jung
  • Patent number: 10155783
    Abstract: Manganese complexes, methods of making the same, and use thereof in thin film deposition, such as CVD and ALD are provided herein.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: December 18, 2018
    Assignee: Merck Patent GmbH
    Inventors: Ravi Kanjolia, Shaun Garratt
  • Patent number: 10144791
    Abstract: A process for preparing an olefin homopolymer or copolymer comprises contacting ethylene, an alpha-olefin, or a combination, and a catalytic amount of a metal-ligand complex catalyst of a particular formula that requires at least one halogen atom that is ortho to a bridging moiety. The strategic location of the halogen atom(s) ensures a product having a molecular weight that is predictably and significantly reduced in comparison with that of copolymers produced using otherwise identical metal-ligand complex catalysts that lack halogen atoms at the specified sites.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: December 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Jerzy Klosin, Ruth Figueroa, Robert D J Froese
  • Patent number: 10138187
    Abstract: The present invention relates to a novel process for the synthesis of 9,9-bis(hydroxymethyl)fluorene. The syntheses from fluorene to 9,9-bis(hydroxymethyl)fluorene via a hydroxymethylation and further to 9,9-bis(methoxymethyl)fluorene via a etherification are known. 9,9-bis(methoxymethyl)fluorene is a compound that is used as an electron donor for Ziegler-Natta catalysts. The present invention is related to an improvement in the synthesis of 9,9-bis(hydroxymethyl)fluorene leading to a decrease in the amount of solvent used and an easier work up while achieving high yield and purity.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: November 27, 2018
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventor: Jaiprakash Brijlal Sainani
  • Patent number: 10124326
    Abstract: A modified solid polyalkylaluminoxane is provided, which is capable of providing ?-olefin suppressing adhesion of any polymer produced as a by-product onto the reactor wall and the stirrer, and which is capable of providing a highly active olefin oligomerization reaction catalyst. An olefin oligomerization reaction catalyst containing the modified solid polyalkylaluminoxane is also provided. The modified solid polyalkylaluminoxane for olefin oligomerization reactions contains structural units represented by general formula (a) and structural units represented by general formula (b), whose median diameter is equal to or larger than 0.1 ?m and equal to or smaller than 50 ?m, in which R? in the general formula (a) represents an alkyl group having 1 to 20 carbon atoms, and R? in the general formula (b) represents a halogenated alkoxy group having 1 to 20 carbon atoms or a halogenated aryloxy group having 6 to 20 carbon atoms.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: November 13, 2018
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Kenji Sogoh, Yohei Kashiwame, Takahiro Hino
  • Patent number: 10119016
    Abstract: This invention relates to heterophasic copolymers of propylene and an alpha olefin comonomer having a high fill phase content (?15%), and heterophasic polymerization processes using a single site catalyst system with a support having high average particle size (PS?30 ?m), high surface area (SA?400 m2/g), low pore volume (PV?2 mL/g), and a mean pore diameter range of 1?PD?20 nm.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: November 6, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Lubin Luo, Gregory S. Day, Matthew W. Holtcamp
  • Patent number: 10016923
    Abstract: A polyethylene resin having a multimodal molecular weight distribution comprising at least two polyethylene fractions A and B, fraction A being substantially free of comonomer and having a lower weight average molecular weight and a higher density than fraction B, each fraction prepared in different reactors of two reactors connected in series in the presence of a Ziegler-Natta catalyst system, the polyethylene resin having a density of from 0.950 to 0.965 g/cm3 and a melt index MI2 of from 0.5 to 5 g/10 min.
    Type: Grant
    Filed: February 27, 2017
    Date of Patent: July 10, 2018
    Assignee: TOTAL RESEARCH & TECHNOLOGY FELUY
    Inventors: Jean-Marie Boissiere, Aurélien Vantomme, Pierre Belloir, Alain Van Sinoy
  • Patent number: 10017617
    Abstract: Disclosed herein are ethylene-based polymers having low densities and narrow molecular weight distributions, but high melt strengths for blown film processing. Such polymers can be produced by peroxide-treating a metallocene-catalyzed resin.
    Type: Grant
    Filed: July 7, 2017
    Date of Patent: July 10, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Lili Cui, Ashish M. Sukhadia, Vivek Rohatgi
  • Patent number: 10005858
    Abstract: A metallocene complex I, II, III and IV, wherein Y is a C1-C20 linear, branched or cyclic hydrocarbyl group, or a C6-C30 aryl or substituted aryl group; L is an electron-donating ligand; A is an element selected from Group 15 or 16; R is a C1-C30 alkyl, aryl, or substituted aryl group; n is an integer from 1 to 3; m is an integer from 1 to 4; B is a boron atom; M is selected from lanthanides or transition metals from group 3, 4, 5 or 6; X is an anionic ligand to M and z is the valence of M minus 2; and a catalyst comprising a 2-indenyl metallocene complex, a ligand precursor, a process for preparation of a ligand precursor, a process for preparation of olefin polymers in the presence of 2-indenyl metallocene complexes, articles comprising an olefin polymer, and methods of making the articles.
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: June 26, 2018
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Haif Al-Shammari, Yunshan Sun, Douglas Wade Stephan, Salah Al Hubish, Zhu Jiangtao
  • Patent number: 10000594
    Abstract: Disclosed herein are ethylene-based polymers generally characterized by a Mw ranging from 70,000 to 200,000 g/mol, a ratio of Mz/Mw ranging from 1.8 to 20, an IB parameter ranging from 0.92 to 1.05, and an ATREF profile characterized by one large peak. These polymers have the dart impact, tear strength, and optical properties of a metallocene-catalyzed LLDPE, but with improved processability, melt strength, and bubble stability, and can be used in blown film and other end-use applications.
    Type: Grant
    Filed: November 8, 2016
    Date of Patent: June 19, 2018
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Mark L. Hlavinka, Chung Ching Tso, Yongwoo Inn, Deloris R. Gagan, Randy S. Muninger
  • Patent number: 9994657
    Abstract: This invention relates to a process to polymerize olefins comprising: i) contacting one or more olefins with a catalyst system comprising: 1) a support comprising an organoaluminum treated layered silicate and an inorganic oxide; and 2) a bisphenolate compound; and ii) obtaining olefin polymer having high molecular weight and layered silicate dispersed therein. Preferably the support is in the form of spheroidal particles.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: June 12, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, Matthew W. Holtcamp, Xuan Ye, Gregory S. Day, David A. Cano, Michelle E. Titone, Machteld M. W. Mertens, Gerardo J. Majano Sanchez
  • Patent number: 9994716
    Abstract: A method for treating a powder, includes: dry mixing the powder with an effective amount of a treating additive to distribute a layer of the treating additive on a surface of a particle of the powder, a primary particle size of the treating additive being smaller than an average particle size of the powder. An associated treated powder is also described.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: June 12, 2018
    Assignee: General Electric Company
    Inventors: Wenqing Peng, Guoliang Wang, Michael Francis Xavier Gigliotti, Jr., Prabhjot Singh
  • Patent number: 9988471
    Abstract: Disclosed are novel hafnium-based metallocene catalyst compounds with the following characteristics: 1) 4,5-dialkyl substitutions on a fluorenyl ligand, and optionally additional substitutions, 2) a cyclopentadienyl ligand, optionally with substitutions, and 3) a bridging group from group 14 of the Periodic Table. Also disclosed are catalyst systems comprising such catalyst compounds and their uses thereof, and polymers produced using such catalyst systems.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 5, 2018
    Assignee: ExxonMobil Chemical Patents Inc
    Inventors: Jo Ann M. Canich, Ian C. Stewart, Ilya S. Borisov, Bogdan A. Guzeev, Dmitry V. Uborsky, Alexander Z. Voskoboynikov
  • Patent number: 9975973
    Abstract: Catalyst compounds and catalyst systems including an asymmetric Salan ligands having a fluorenyl moiety are disclosed. Methods of preparing such catalyst compounds and catalyst systems, polymerization processes using such catalysts systems and olefin polymers prepared according to such processes using the catalysts systems are described.
    Type: Grant
    Filed: August 19, 2016
    Date of Patent: May 22, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Crisita Carmen H. Atienza, David A. Cano, Meagan E. Evans
  • Patent number: 9975972
    Abstract: An object of the present invention is to provide a polyethylene-based resin composition excellent in the moldability and at the same time, excellent in the balance between impact strength and stiffness as well as in the transparency, and a molded product and a film, which are obtained by the molding of the polyethylene-based resin composition. The polyethylene-based resin composition of the present invention comprises from 41 to 99 wt % of (A) an ethylene-based polymer satisfying specific conditions and from 1 to 59 wt % (B) an ethylene-based polymer satisfying specific conditions, wherein MFR of the composition as a whole is from 0.05 to 50 g/10 min and the density is from 0.910 to 0.960 g/cm3.
    Type: Grant
    Filed: February 11, 2016
    Date of Patent: May 22, 2018
    Assignee: JAPAN POLYETHYLENE CORPORATION
    Inventors: Yoshiyuki Ishihama, Ryousuke Asakawa, Tsutomu Sakuragi, Tetsurou Fukuda, Kazuya Sakata, Masaru Aoki, Kenji Kawagishi, Keiichi Yoshimoto