Patents Examined by Rip A. Lee
  • Patent number: 11326005
    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: July 8, 2021
    Date of Patent: May 10, 2022
    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, Youlu Yu
  • 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: 11326045
    Abstract: Disclosed herein is a film comprising a layer that comprises a polyethylene composition comprising the reaction product of ethylene and optionally one or more alpha-olefin comonomers, wherein said polyethylene composition is characterized by the following properties: a melt index, I2, measured according to ASTM D1238 (2.16 kg, 190 C), of from 0.5 to 10 g/10 min; a density (measured according to ASTM D792) of less than 0.935 g/cm3; a melt flow ratio, I10/I2, wherein I10 is measured according to ASTM D1238 (10 kg, 190 C) of from 6.0 to 7.5; a molecular weight distribution (Mw/Mn) of from 2.8 to 3.9; and a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms, and a low density polyethylene.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: May 10, 2022
    Assignee: Dow Global Technologies LLC
    Inventors: Nicolas Cardoso Mazzola, Teresa P. Karjala, João Gargalaka, Jr., Mustafa Bilgen, Marcelo Delmar Cantu, Mehmet Demirors, Jorge Caminero Gomes
  • Patent number: 11325927
    Abstract: An activated, titanium-based, spray-dried Ziegler-Natta catalyst system containing a titanium-based Ziegler-Natta catalyst, a carrier material, and an activator mixture comprising an effective amount of an activator mixture comprising triethylaluminum and diethylaluminum chloride for producing a substantially uniform comonomer composition distribution. Also, polyolefins; methods of making and using same; and articles containing same.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: May 10, 2022
    Assignee: UNIVATION TECHNOLOGIES, LLC
    Inventors: Wesley R. Mariott, C. Dale Lester, Nitin Borse
  • Patent number: 11306167
    Abstract: To provide a fluorinated elastic copolymer excellent in adhesion, processability, mechanical properties, heat resistance and chemical resistance. A fluorinated elastic copolymer having units based on a monomer (a), units based on a monomer (b) and optionally units based on a monomer (c), which has an iodine atom bonded to a terminal of a molecular chain and the unit based on the monomer (b) adjacent to the iodine atom, and which has a proportion of the units based on the monomer (b) of from 0.09 to 2.0 mol % to all units. Monomer (a): monomer selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, chlorotrifluoroethylene, a perfluoro(alkyl vinyl ether) and 2,3,3,3-tetrafluoropropene; monomer (b): a monomer having at least one type of functional group selected from the group consisting of an epoxy group, a hydroxy group, a carbonyl group-containing group and an isocyanate group; monomer (c): a monomer selected from the group consisting of ethylene and propylene.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: April 19, 2022
    Assignee: AGC Inc.
    Inventors: Satoko Yasuda, Keisuke Yagi, Takehiro Kose, Yukiko Hattori, Toshikazu Yoneda
  • Patent number: 11299566
    Abstract: Embodiments in accordance with the present invention encompass compositions comprising a organopalladium compound, a photoacid generator, a photosensitizer, one or more olefinic monomers and a stabilizer, such as for example a hindered amine, which undergo vinyl addition polymerization when said composition is exposed to a suitable actinic radiation to form a substantially transparent film. The compositions of this invention are stable at room temperature for several days to several months and can also be stored at higher temperatures from about 40° C. to 60° C. for several days and undergo mass polymerization only when subjected to suitable actinic radiation. The monomers employed therein have a range of optical and mechanical properties, and thus these compositions can be tailored to form films having various opto-electronic properties.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: April 12, 2022
    Assignee: PROMERUS, LLC
    Inventors: Shun Hayakawa, Guodong Deng, Ruslan Burtovyy, Leah Langsdorf, Larry F Rhodes
  • Patent number: 11299652
    Abstract: This invention relates to cyanoacrylate-containing compositions that include (a) a beta-alkoxy cyanoacrylate component, (b) a cyanoacrylate component selected from butyl cyanoacrylates, octyl cyanoacrylates, and combinations thereof; (c) a rubber toughening component (d) a surface modified component; and (e) an adhesion promoter. Cured products of the inventive cyanoacrylate compositions demonstrate improved toughness without an odor typically found with cyanoacrylate-containing compositions.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: April 12, 2022
    Assignee: Henkel AG & Co. KGaA
    Inventors: Rory B. Barnes, Rachel Hersee, Barry N. Burns
  • Patent number: 11299562
    Abstract: Catalyst deactivating agents and compositions containing catalyst deactivating agents are disclosed. These catalyst deactivating agents can be used in methods of controlling polymerization reactions, methods of terminating polymerization reactions, methods of operating polymerization reactors, and methods of transitioning between catalyst systems.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: April 12, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Max P. McDaniel, Qing Yang, Kathy S. Clear, Tony R. Crain, Timothy O. Odi
  • Patent number: 11292899
    Abstract: An object of the present invention is to provide a highly heat resistant and highly rigid propylene-based polymer having unprecedentedly high stereoregularity. The propylene-based polymer of the present invention satisfies requirements (1) to (4) and preferably requirement (5): (1) an average meso chain length is 800 to 100,000; (2) a MFR is 0.5 to 1,000 g/10 minutes; (3) a ratio of Mw to Mn, Mw/Mn, as measured by GPC is 4.2 to 20; (4) when the ratio of a component which elutes at a temperature of 122° C. or more as measured by temperature rising elution fractionation (TREF) is A % by weight and the melt flow rate of the requirement (2) is B g/10 minutes, 100?A?20×EXP(?0.01×B); (5) an amount of a component soluble in n-decane at 23° C. is 0.01 to 2% by weight.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: April 5, 2022
    Assignees: MITSUI CHEMICALS, INC., PRIME POLYMER CO., LTD.
    Inventors: Yasuhiro Kai, Naoya Noda, Kenji Michiue, Keita Itakura
  • Patent number: 11292858
    Abstract: The invention relates to a polypropylene composition which combines low sealing initiation temperature (SIT) and high melting point (Tm), thus having a broad sealing window.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: April 5, 2022
    Assignee: BOREALIS AG
    Inventors: Luca Boragno, Luigi Resconi, Mattias Hoff, Shital Das, Kauno Alastalo, Markku Vahteri, Friedrich Berger, Davide Tranchida
  • Patent number: 11286317
    Abstract: The present invention provides a morphology modified heterophase polymer having No-Break impact strength in the range of 500 J/m-700 J/m as per ASTM standard D256, a high melt flow index in the range of 100 g/10 min as per ASTM D1238, and a balanced flexural modulus as per ASTM standard D790. More particularly, the present invention relates to a process for the modification of morphology of heterophase propylene polymer in the presence of an initiator in the form of organic peroxide and a multifunctional unsaturated organic vinyl compound on the ex-reactor Heterophase Propylene Copolymer powder and/or pellet using special extrusion device.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 29, 2022
    Assignee: Indian Oil Corporation Limited
    Inventors: Vimal Kakkarakkal Kottiyath, Saranya Sethuramalingam, Naresh Shiva, Jatinder Dhaliwal Singh, Vishal Goel, Ptabhu Narain Chakrawal, Abhilasha Mishra, Shashikant, Gurpreet Singh Kapur, Sankara Sri Venkata Ramakumar
  • Patent number: 11279777
    Abstract: The present invention relates to A Ziegler-Natta catalyst component in the form of solid particles having a median a particle size (D50vol) of 5 to 200 ?m and comprising i) a compound of Group 1 to 3, preferably of Group 2 metal, IUPAC, Nomenclature of Inorganic Chemistry, 1989 ii) a compound of a transition metal of Group 4 to 10, or of a lanthanide or actinide, preferably a transition metal of Group 4 to 6, IUPAC, Nomenclature of Inorganic Chemistry, 1989 and iii) an internal electron donor, wherein the solid particles a have a numerical SPAN of 0.80 or below and a ratio of numerical mode to volumetric mode (Modenum/Modevol) of 0.60 or more and we Wherein Modenum<Modevol. The invention also relates to a process for producing said catalyst component and use thereof producing C2 to C10 ?-olefin polymers, especially propylene or ethylene polymers or copolymers thereof with ?-olefins of 2 to 12 C-atoms.
    Type: Grant
    Filed: October 23, 2018
    Date of Patent: March 22, 2022
    Assignee: Borealis AG
    Inventors: Hanna-Leena Rönkkö, Kumudini Jayaratne, Timo Leinonen, Peter Denifl
  • Patent number: 11274171
    Abstract: The present invention relates to a catalyst composition comprising: catalyst component A comprising a bridged metallocene compound with two indenyl groups, each indenyl being substituted with one or more substituents, wherein at least one of the substituent is an aryl or heteroaryl; catalyst component B comprising a bridged metallocene compound with a substituted or unsubstituted cyclopentadienyl group and a substituted or unsubstituted fluorenyl group; an optional activator; an optional support; and an optional co-catalyst. The present invention also relates to a polymerization process using said composition. The invention further relates to olefin polymers at least partially catalyzed by said catalyst composition and articles comprising said olefin polymers.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: March 15, 2022
    Assignee: Total Research & Technology Feluy
    Inventors: Virginie Cirriez, Alexandre Welle, Aurélien Vantomme
  • Patent number: 11267911
    Abstract: A butene-1 polymer composition having a MFR value of from 100 to 300 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; B) a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; wherein the composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 75% by weight or less, determined on the total weight of A) and B).
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 8, 2022
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Roberta Marchini, Stefano Spataro, Roberta Pica
  • Patent number: 11267912
    Abstract: A butene-1 polymer composition having MFR values of from 20 to less than 100 g/10 min., measured according to ISO 1133 at 190° C. with a load of 2.16 kg, made from or containing: A) a butene-1 homopolymer or a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of up to 5% by mole; and B) a copolymer of butene-1 with one or more comonomers selected from the group consisting of ethylene and higher alpha-olefins, having a copolymerized comonomer content of from 6% to 20% by mole; wherein the composition having a total copolymerized comonomer content from 4% to 15% by mole, referred to the sum of A) and B), and a content of fraction soluble in xylene at 0° C. of 75% by weight or less, determined on the total weight of A) and B).
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 8, 2022
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Roberta Marchini, Stefano Spataro, Roberta Pica
  • Patent number: 11267909
    Abstract: Disclosed herein are oligomerization processes in which ethylene and a catalyst system are first combined for a suitable residence time in an activation vessel, prior to introduction into a reaction zone to oligomerize ethylene to form a desired oligomer product, such as 1-hexene and/or 1-octene. Related oligomerization reaction systems that include the activation vessel also are disclosed. In these oligomerization processes and reaction systems, the catalyst system can be fully activated as it leaves the activation vessel and enters the reaction zone, thus providing greater catalyst utilization and less catalyst waste.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: March 8, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Steven M. Bischof, James L. Hillier, Uriah J. Kilgore, Steve R. Hutchison, Bruce E. Kreischer, Orson L. Sydora
  • Patent number: 11267919
    Abstract: Ethylene-based polymers are characterized by a melt index less than 1 g/10 min, a density from 0.94 to 0.965 g/cm3, a Mw from 100,000 to 250,000 g/mol, a relaxation time from 0.5 to 3 sec, and an average number of long chain branches (LCBs) per 1,000,000 total carbon atoms in a molecular weight range of 300,000 to 900,000 g/mol that is greater than that in a molecular weight range of 1,000,000 to 2,000,000 g/mol, or an average number of LCBs per 1,000,000 total carbon atoms in a molecular weight range of 1,000,000 to 2,000,000 g/mol of less than or equal to about 5 and a maximum ratio of ?E/3? at an extensional rate of 0.1 sec?1 from 1.2 to 10. These polymers have substantially no long chain branching in the high molecular weight fraction of the polymer, but instead have significant long chain branching in a lower molecular weight fraction, such that polymer melt strength and parison stability are maintained for the fabrication of blow molded products and other articles of manufacture.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 8, 2022
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Jeremy M. Praetorius, Alfred E. Brown, Jr., Yongwoo Inn, Youlu Yu, Qing Yang, Ashish M. Sukhadia
  • Patent number: 11261206
    Abstract: This invention relates generally to olefin metathesis catalyst compounds, to the preparation of such compounds, compositions comprising such compounds, methods of using such compounds, articles of manufacture comprising such compounds, and the use of such compounds in the metathesis of olefins and olefin compounds. The invention has utility in the fields of catalysts, organic synthesis, polymer chemistry, and industrial and fine chemicals industry.
    Type: Grant
    Filed: August 17, 2017
    Date of Patent: March 1, 2022
    Inventors: Li-sheng Wang, Mark S. Trimmer
  • Patent number: 11254756
    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: June 19, 2019
    Date of Patent: February 22, 2022
    Assignee: W.R. GRACE & CO.-CONN.
    Inventors: Linfeng Chen, Tak W. Leung, Tao Tao, Kuanqiang Gao
  • Patent number: 11254809
    Abstract: A polymer composition comprising a base resin is disclosed herein. The base resin includes a very high molecular weight polyethylene component, a low molecular weight polyethylene component having a weight average molecular weight lower than a weight average molecular weight of the very high molecular weight component and a high molecular weight component having a weight average molecular weight higher than the weight average molecular weight of the low molecular weight component, but lower than the weight average molecular weight of the very high molecular weight component. The composition has a complex viscosity at 0.05 rad/s Eta0.05 rad/s of equal to or more than 800 kPa·s, a viscosity at a shear stress of 747 Pa (eta747) of equal to or less than 34000 kPas and a melt flow rate MFR5 of equal to or less than 0.17 g/10 min.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: February 22, 2022
    Assignee: Borealis AG
    Inventors: Yi Liu, Qizheng Dou