Solid Polymer Derived From Ethylene Or Propylene Patents (Class 525/240)
  • Patent number: 10336921
    Abstract: The present invention is related to a polymer blend, having a melt viscosity at 190° C. of 3,000 cP to 12,000 cP, and one or more tackifiers, having a softening point of 80° C. to 145° C., an aromaticity of 3 mol % to 11 mol % aromatic protons, and a Cloud Point of ?10° C. to 15° C. for use in an adhesive composition. The polymer blend includes a first propylene-based polymer and a different second propylene-based polymer, both selected from a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: July 2, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Jennifer J. Austin, Ranjan Tripathy
  • Patent number: 10279766
    Abstract: A vehicle body assembly includes a first body wholly or partly made of a first polymeric material. The first polymeric material includes a polycarbonate and has a 60-degree gloss that is equal to or greater than 80 gloss units. The first body defines an outermost surface of the vehicle body assembly. The first body may be an exterior trim component, such as a grille portion, and may have a black color. The vehicle body assembly further includes a second body coupled (e.g., chemically bonded) to the first body. The second body may be a support body configured to support the exterior trim component and is wholly or partly made of a second polymeric material. The second polymeric material is different from the first polymeric material, and the outermost surface of the first body faces away from the second body.
    Type: Grant
    Filed: June 16, 2017
    Date of Patent: May 7, 2019
    Assignee: GM Global Technology Operations LLC
    Inventors: Thomas J. Pickett, Robert Dallos, Jr.
  • Patent number: 10253439
    Abstract: This disclosure relates to an article that includes a nonwoven substrate and a film supported by the nonwoven substrate. The film can include a first polymer and a polymer that is immiscible with the first polymer. The first polymer can include a polyolefin and the second polymer can include a polycycloolefin, a polymethylpentene, or a copolymer thereof.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 9, 2019
    Assignee: Fiberweb, LLC
    Inventor: Mehdi Afshari
  • Patent number: 10221292
    Abstract: A method of producing a polypropylene resin in-mold expanded product, includes: placing polypropylene resin particles obtained from a base material resin having a melting point of 140° C. to 150° C., the base material resin comprising: a polypropylene resin A comprising 3 weight % to 15 weight % of 1-butene and having a melting point of 130° C. to 140° C.; and a polypropylene resin B having a melting point of 145° C. to 165° C.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: March 5, 2019
    Assignee: KANEKA CORPORATION
    Inventors: Toru Yoshida, Shintaro Miura
  • Patent number: 10196506
    Abstract: The invention relates to an heat-activated fabric comprising a polymer blend of 70 to 100 wt % of a polymer blend component and 0 to 30 wt % of a propylene polymer, wherein the polymer blend component comprises a first propylene-based polymer, wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin and a second propylene-based polymer, wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin, wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend component has a MFR of greater than or equal to 20 g/10 min to less than 10,000 g/10 min; and wherein the propylene polymer has a MFR of greater than or equal to 20 g/10 min to less than 5,000 g/10 min.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: February 5, 2019
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: James N. Coffey, Galen C. Richeson, Jennifer J. Austin, Jurgen J. M. Schroeyers
  • Patent number: 10160849
    Abstract: The present disclosure relates to a polyolefin composition comprising, in some embodiments: A) 90.0-99.0 wt % of a propylene homopolymer; B) f1.0-10.0 wt % of a propylene/ethylene copolymer composition comprising: b1) 14-52 wt % of a propylene homopolymer or a propylene/ethylene copolymer; b2) 48-86 wt % of a propylene ethylene copolymer comprising an ethylene derived units content of 20.0-55.0 wt %; wherein the resulting polyolefin composition has a melt flow rate (MFR; ISO 1133, 230° C., 5 kg) of 0.2-4.0 g/10 min; the sum of A+B equals 100% by weight and the sum of b1+b2 equals 100% by weight.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 25, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Claudio Cavalieri, Monica Galvan, Giampaolo Pellegatti, Francesca Tisi
  • Patent number: 10155861
    Abstract: A composition includes (A) 30-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 ?-olefins of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) a density of 0.90 g/cc or less, and (iii) an MFR of 1 g/10 min or greater (230° C./2.16 kg); and (B) 5-70 wt % of a block composite nucleator comprising: (1) a first polymer that includes polypropylene; (2) a second polymer that includes an alpha-olefin based polymer, the alpha-olefin being selected from at least one of a C2 and C4-10 ?-olefins, and (3) a block copolymer having a first segment and a second segment, the first segment of the block copolymer having the same composition as the first polymer in the block composite nucleator and the second segment of the block copolymer having the same composition as the second polymer of the block composite nucleator.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: December 18, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Yi Jin, Kim L. Walton, Morgan M. Hughes, Thomas W. Karjala, Lamy J. Chopin, III, Dean Lee, Rongjuan Cong
  • Patent number: 10155828
    Abstract: The present invention is directed to a heterophasic propylene copolymer (HECO), a polyolefin composition (PO) comprising the heterophasic propylene copolymer (HECO), an automotive article comprising the heterophasic propylene copolymer (HECO) and/or the polyolefin composition (PO) and a process for the preparation of the polyolefin composition (PO) as well as the use of the heterophasic propylene copolymer (HECO) for improving the mechanical properties of a polyolefin composition (PO).
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: December 18, 2018
    Assignee: Borealis AG
    Inventors: Georg Grestenberger, Martina Sandholzer
  • Patent number: 10145027
    Abstract: The present disclosure is directed to a fiber that is composed of a polymeric blend including (i) 95 wt % to 99 wt % of a high density ethylene-based polymer having a Mw/Mn from 2.0 to 3.0 and (ii) from 5 wt % to 1 wt % of a low density ethylene-based polymer having a melt index from 5 g/10 min to 15 g/10 min. The fiber has a density from 1 denier to 2 denier and a 3% secant modulus from 8.5 g/denier to 20 g/denier.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: December 4, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Arnaldo Lorenzo, Selim Bensason, Jacquelyn A. Degroot
  • Patent number: 10113058
    Abstract: A polymer composition providing optical clarity and impact resistance includes from about 40 weight percent (wt. %) to about 99.9 wt. % (e.g., 50-95 wt. %) of a continuous matrix, and from about 0.01 wt. % to about 60 wt. % (e.g., 5-50 wt. %) of a dispersed phase. The weight percentages of the matrix phase and the dispersed phase are based on the total weight of the matrix phase and the dispersed phase. The matrix phase may comprise a polypropylene polymer comprising from 0 to 7 mole percent (mol. %) of units derived from ethylene, a C4-C10 alpha olefin or combinations thereof. The dispersed phases may be a propylene/alpha olefin copolymer having from 10 mol. % to 70 mol. % of units derived from ethylene or a C4-C10 alpha olefin or combinations thereof.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: October 30, 2018
    Assignee: Braskem America, Inc.
    Inventors: Leslie Bockman, Elliot Carnevale, Jon Scott Larson, Kevin Herrington
  • Patent number: 10100185
    Abstract: The present invention is directed to a new heterophasic propylene copolymer (RAHECO) and an injection molded article comprising the heterophasic propylene copolymer (RAHECO) as well as a thin wall packaging comprising the heterophasic propylene copolymer (RAHECO). The present invention is further directed to the use of the heterophasic propylene copolymer (RAHECO) for improving the toughness of an injection molded article.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: October 16, 2018
    Assignee: Borealis AG
    Inventors: Jingbo Wang, Pauli Leskinen, Johanna Lilja, Markus Gahleitner
  • Patent number: 10093759
    Abstract: A gas-phase process for making a propylene-based polymer in a fluidized-bed reactor, the reactor containing a fluidized bed including polymer product particles and a catalyst, the process having a set of quantitative criteria for maximum monomer partial pressure, maximum reactor temperature, and comonomer content(s) in the propylene-based polymer. The propylene-based polymer may be EBPT or BPRCP. The catalyst may include a catalyst/donor system comprising (1) a supported Ziegler-Natta pro-catalyst, (2) a co-catalyst, and (3) a mixed external electron donor system including (a) an activity limiting agent including at least one carboxylate ester functional group, and (b) a selectivity control agent.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: October 9, 2018
    Assignee: W. R. Grace & Co.-Conn.
    Inventors: Ping Cai, Matthew J. Fedec, Jeffrey D. Goad, Jan W. Van Egmond, Chai-Jing Chou
  • Patent number: 10087318
    Abstract: Ethylene polymer composition comprising, all percent amounts being by weight: A) 30-60% of an ethylene polymer containing 10% or less, referred to the weight of A), of a fraction XSA soluble in xylene at 25° C.; B) 40-70% of a copolymer of ethylene with at least one olefin of formula HC2?CHR, where R is a alkyl radical, linear or branched, having from 2 to 8 carbon atoms, containing 65-90% of ethylene and 55-15% of a fraction XSB soluble in xylene at 25° C., both the ethylene of the copolymer and XSB amounts being referred to the weight of B), the intrinsic viscosity [?] of the XSB fraction ranging from 0.8 to 3.2 dl/g; wherein the amounts of A) and B) are referred to the total weight of A)+B).
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: October 2, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Claudio Cavalieri, Michele Grazzi, Roberto Pantaleoni
  • Patent number: 10087317
    Abstract: Ethylene polymer composition having a fusion enthalpy ?Hfus, measured by Differential Scanning Calorimetry with a heating rate of 20° C. per minute, of 60 J/g or more, comprising, all percent amounts being by weight: A) 25-55% of an ethylene polymer containing 10% or less, referred to the weight of A), of a fraction XSA soluble in xylene at 25° C.; B) 45-75% of a copolymer of ethylene and propylene containing from 45% to 70%, of ethylene and 60% or more of a fraction XSB soluble in xylene at 25° C., both the ethylene of the copolymer and XSB amounts being referred to the weight of B); wherein the amounts of A) and B) are referred to the total weight of A)+B).
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: October 2, 2018
    Assignee: Basell Polyolefine GmbH
    Inventors: Claudio Cavalieri, Michele Grazzi, Roberto Pantaleoni
  • Patent number: 10072140
    Abstract: Polymer blend comprising components A, B and C: A: 1 to 19.5% by weight of an elastomeric block copolymer A based on styrene (S-TPE); B: 0.5 to 8% by weight of a compatibilizer component B; and C: 80 to 98.5% by weight of at least one semi-crystalline olefin homo- or copolymer C. The invention further relates to a composition comprising thermoplastic elastomers based on styrene (S-TPE) for use as compatibilizer of S-TPE block copolymers and polyolefins, a process for the preparation of the polymer blend, a master batch for the preparation of the polymer blend, and single- and multilayer films comprising said polymer blend and their use for food packaging and as shrink hood.
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: September 11, 2018
    Assignee: INEOS STYROLUTION GROUP GMBH
    Inventors: Konrad Knoll, Andrea Colombo
  • Patent number: 10059785
    Abstract: The invention is related to a composition of polypropylene and polyethylene, which contains specific compatibilizer and flow enhancer. Furthermore the present invention is also related to articles comprising the said composition and the use of said articles in packaging application.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: August 28, 2018
    Assignee: Borealis AG
    Inventors: Bhawna Kulshreshtha, Markus Gahleitner
  • Patent number: 10047203
    Abstract: A stretch film including at least a first layer and a second layer, in which the first layer includes a metallocene linear low density polyethylene (m-LLDPE) with incorporated long chain branching resin and a lower density m-LLDPE resin; and the second layer includes a lower melt index m-LLDPE resin.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: August 14, 2018
    Assignee: PARAGON FILMS, INC.
    Inventor: Shaun Eugene Pirtle
  • Patent number: 10017591
    Abstract: An object of the invention is to provide compositions which have low-temperature heat sealing properties, are free from stickiness, may achieve a heat seal strength controlled within a certain definite range when heat sealing takes place at low temperatures, have small changes in heat seal strength with time, and are such that in the packaging applications, the strength required to open the packages may be easily controlled within a certain definite range, and high-performance packages may be designed. The invention resides in a 1-butene.?-olefin copolymer composition including 99 to 1 parts by mass of at least one olefin polymer (X) selected from propylene polymers (X-1) and ethylene polymers (X-2), and 1 to 99 parts by mass of a 1-butene.?-olefin copolymer (Y) containing 0.1 to 30 mol % of one or more ?-olefins selected from ?-olefins and having a molecular weight distribution (Mw/Mn) of 1.0 to 3.5 [wherein the total of (X) and (Y) in the composition is 100 parts by mass].
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: July 10, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Ikuo Akai, Tomohiro Abe, Koya Yoshimoto, Masayoshi Yamaguchi, Shinya Tanaka, Koji Matsunaga, Makoto Egawa
  • Patent number: 10011693
    Abstract: [Problem] To provide polypropylene for a microporous film having excellent heat resistance and strength. [Solution] Polypropylene for a microporous film satisfying the following requirements (1) and (2): (1) the weight-average molecular weight (Mw) value, as determined by gel permeation chromatography (GPC), is not less than 100,000 but less than 800,000, the value (Mw/Mn) obtained by dividing the weight-average molecular weight by the number-average molecular weight is more than 7.0 but not more than 12.0, and the value (Mz/Mw) obtained by dividing the Z-average molecular weight by the weight-average molecular weight is not less than 3.8 but not more than 9.0, and (2) the mesopentad fraction, as measured by 13C-NMR (nuclear magnetic resonance method), is not less than 95.5%.
    Type: Grant
    Filed: October 23, 2013
    Date of Patent: July 3, 2018
    Assignee: PRIME POLYMER CO., LTD.
    Inventors: Yoshio Yanagishita, Chikara Satou, Satoshi Tamura, Katsutoshi Ohta
  • Patent number: 10000592
    Abstract: The present invention is a process for producing copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low content of extractable material and can be extruded to films which can be used in food contact applications.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: June 19, 2018
    Assignee: BOREALIS AG
    Inventors: Yi Liu, John Jamieson, Ravindra Tupe, Jarmo Kela
  • Patent number: 9994705
    Abstract: A thermoplastic elastomer composition comprising 100 parts by mass of a hydrogenated block copolymer (A) comprising a polymer block (a) consisting of a structural unit derived from an aromatic vinyl compound and a polymer block (b) comprising 1 to 100% by mass of a structural unit (b1) derived from farnesene and comprising 99 to 0% by mass of a structural unit (b2) derived from a conjugated diene other than farnesene, a mass ratio [(a)/(b)] of the polymer block (a) to the polymer block (b) being 1/99 to 70/30; and 5 to 300 parts by mass of a polar group-containing olefinic polymer (B), is excellent in flexibility and molding processability and capable of adhering to a ceramic, a metal, a synthetic resin, or the like even through a heat treatment at low temperatures (for example, 190° C. or lower) without requiring a primer treatment or the like.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: June 12, 2018
    Assignees: KURARAY CO., LTD., AMYRIS, INC.
    Inventors: Yusuke Tanaka, Hiromitsu Sasaki, Shota Suzuki, Yosuke Uehara
  • Patent number: 9988475
    Abstract: The instant invention provides a method for polymerizing one or more ethylene-based polymers. The method for polymerizing one or more ethylene-based polymers according to the present invention comprises the following steps: (1) selecting ethylene and optionally one or more alpha-olefin comonomers; (2) selecting one or more catalyst systems comprising one or more procatalysts comprising Ti, one or more cocatalysts comprising Al, and one or more self-limiting agents (SLA); wherein the ratio of SLA to Ti is from 5:1 to 40:1 and the ratio of Al to SLA is from 2:1 to 40:1; (3) polymerizing said ethylene and optionally one or more alpha-olefin comonomers in the presence of said one or more catalyst systems via a slurry polymerization process or gas-phase polymerization process in one or more reactors; (4) thereby producing one or more ethylene; wherein said catalyst system has a loss of least 85% of catalyst productivity when the temperature is increased from 85 to 115 C.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: June 5, 2018
    Inventors: Linfeng Chen, Robert J. Jorgensen, Stephanie M. Whited
  • Patent number: 9982120
    Abstract: The present disclosure relates to a heterophasic polypropylene compositions comprising 78-85% by weight of a propylene homopolymer or copolymer matrix with up to 2.0% by weight of ethylene units, 15-22% by weight of an elastomeric ethylene-propylene copolymer and a clarifying agent. The composition has an intrinsic viscosity of the xylene soluble fraction at room temperature of from 0.5 to 1.5 dl/g and a melt flow rate (230° C., 2.16 kg) of 0.5 to 10 g/10 min. The compositions of the present disclosure can be used to prepare sheets for thermoforming applications.
    Type: Grant
    Filed: February 4, 2015
    Date of Patent: May 29, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Takeshi Nakajima, Kazuhiko Sakai, Minoru Kuriyama, Masanori Maruyama
  • Patent number: 9969870
    Abstract: A propylene polymer composition comprising: A) from 81 wt % to 91 wt % of a propylene ethylene copolymer containing from 1.0 wt % to 3.5 wt % of ethylene derived units having a fraction soluble in xylene at 25° C. comprised between 10 wt % and 3 wt %; and a melt flow rate ranging from 5 to 50 g/10 min; B) from 9 wt % to 19 wt %, of a copolymer of propylene and ethylene with from 21.0 wt % to 31.0 wt % of ethylene derived units; the sum A)+B) being 100; the composition having an melt flow rate ranging from 20 to 35 g/10 min; the xylene soluble fraction to 25° C. ranging from 13.0 wt % to 25.0 wt % and the intrinsic viscosity of the fraction soluble in xylene at 25° C. ranging from 0.7 dl/g to 1.9 dl/g.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: May 15, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Paola Massari, Marco Ciarafoni, Tiziana Caputo, Nicoletta Martini
  • Patent number: 9969853
    Abstract: Means for solving the problems The thermoplastic resin composition (X1) of the present invention comprises (A1), (B1), (C1), and optionally (D1) below: 1 to 90 wt % of an isotactic polypropylene (A1); 9 to 98 wt % of a propylene/ethylene/?-olefin copolymer (B1) containing 45 to 89 mol % of propylene-derived structural units, 10 to 25 mol % of ethylene-derived structural units, and optionally, 0 to 30 mol % of C4-C20 ?-olefin-derived structural units (a1); 1 to 80 wt % of a styrene-based elastomer (C1); and 0 to 70 wt % of an ethylene/?-olefin copolymer (D1) whose density is in the range of 0.850 to 0.910 g/cm3, wherein (A1)+(B1)+(C1)+(D1)=100 wt %.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: May 15, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Hiroshi Hoya, Kiminori Noda, Norihide Inoue, Hiroshi Uehara, Eiji Shiba, Masayoshi Yamaguchi, Manabu Kawamoto, Akira Yamashita
  • Patent number: 9951213
    Abstract: The present invention is a process for producing low density copolymers of ethylene and alpha-olefins having from 4 to 10 carbon atoms in three polymerization stages in the presence of an olefin polymerization catalyst where a low molecular weight copolymer of ethylene is produced in two of the stages and a high molecular weight copolymer in one of the stages. The resulting copolymers have a low density of not more than 920 kg/m3.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: April 24, 2018
    Assignee: BOREALIS AG
    Inventors: Ravindra Tupe, Jani Aho, Markku Vahteri, Tuomas Noopila, Jarmo Kela
  • Patent number: 9932470
    Abstract: The present disclosure relates to highly filled polyolefin compositions with improved balance of properties particularly for applications where puncture and tear resistance is requested comprising a flexible heterophasic polyolefin composition (I), consisting of a crystalline polymer fraction (A) consisting of a copolymer of propylene with ethylene having a fraction insoluble in xylene at 25° C. of at least 90% by weight, and an elastomeric fraction (B) consisting of a copolymer or blend of copolymers of ethylene with propylene; the copolymer or blend containing units derived from ethylene in a quantity lower than 40% by weight. The fraction soluble in xylene at 25° C. of the polyolefin composition having an IVgpc lower than 2.5 dl/g, a broad molecular weight distribution Mw/Mn (GPC) equal to or higher than 4, and a Mz/Mw (GPC) equal to or higher than 2.5.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: April 3, 2018
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Gisella Biondini, Michele Grazzi, Luca Lunghi, Claudio Cavalieri
  • Patent number: 9902527
    Abstract: A coated fabric (11), comprising a fabric (12) from polymer tapes (12a, 12b), wherein the fabric (12) is coated with a sealing layer (13), wherein • at least a portion of the polymer tapes (12a, 12b) have a breaking tenacity of less than 45 cN/tex, preferably 15 to 40 cN/tex and an elongation at break of more than 30%, preferably of 40 to 90%, and/or • wherein the sealing layer (13) is formed from a composition A comprising at least one ethylene/?-olefin interpolymer, and wherein the composition has a density from 0.905 to 0.930 g/cc, preferably from 0.910 to 0.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: February 27, 2018
    Assignees: DOW CHEMICAL IBERICA S.L., HAVER & BOECKER OHG, STARLINGER & CO GESELLSCHAFT M.B.H.
    Inventors: Maria Isabel Arroyo Yillan, Thomas Schütte, Franz Schneider
  • Patent number: 9890275
    Abstract: The present invention relates to a polyolefin composition comprising two heterophasic propylene copolymers which differ in the melt flow rate.
    Type: Grant
    Filed: August 18, 2014
    Date of Patent: February 13, 2018
    Assignee: Borealis AG
    Inventors: Martina Sandholzer, Susanne Kahlen, Georg Grestenberger
  • Patent number: 9879364
    Abstract: The invention relates to a fiber comprising a polymer blend of (a) from about 90 to about 99 wt % of a propylene polymer and (b) from about 1 to about 10 wt % of a polymer blend modifier, comprising a first propylene-based polymer wherein the first propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin and a second propylene-based polymer wherein the second propylene-based polymer is a homopolymer of propylene or a copolymer of propylene and ethylene or a C4 to C10 alpha-olefin, wherein the second propylene-based polymer is different than the first propylene-based polymer and wherein the polymer blend modifier has a MFR of greater than about 1,000 g/10 min to less than about 10,000 g/10 min; and wherein the propylene polymer has a MFR of less than about 15 g/10 min.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: January 30, 2018
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: John M. Donahue, Lyn B. Greenwood
  • Patent number: 9872598
    Abstract: A drying system for a dishwasher including a passive vent assembly mounted to a top portion of the dishwasher. The passive vent assembly includes a passive vent structure having a series of air vents defined therein and through which drying air flows are drawn into the wash chamber of the dishwasher, a diffuser mounted over the air vents and including a series of fins for spreading the drying air flows across the wash chamber, and a moisture trap hood mounted over an upper surface of the passive vent structure.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 23, 2018
    Assignee: VIKING RANGE, LLC
    Inventors: Jemsheer Thayyullathil, Kevin Brown
  • Patent number: 9840616
    Abstract: Unoriented film comprising at least 70 wt.-% of an heterophasic propylene copolymer, said heterophasic propylene copolymer comprises a matrix being a random propylene copolymer and an elastomeric propylene copolymer dispersed in said matrix, wherein the heterophasic propylene copolymer has (a) a melt flow rate MFR2 (230° C.) in the range of 3.0 to 10.0 g/10 min, (b) a melting temperature in the range of 130 to 150° C., (c) a xylene cold soluble content in the range of 25 to 50 wt.-%, (d) comonomer content in the range of 10.0 to 15.0 wt.-%, wherein further the xylene cold soluble content of the heterophasic propylene copolymer has (e) a comonomer content in the range of 20 to 30 wt.-% and (f) an intrinsic viscosity in the range of 0.8 to below 2.0 dl/g.
    Type: Grant
    Filed: July 10, 2012
    Date of Patent: December 12, 2017
    Assignee: Borealis AG
    Inventors: Markus Gahleitner, Martina Sandholzer, Klaus Bernreitner, Pauli Leskinen
  • Patent number: 9840570
    Abstract: An ethylene alpha-olefin copolymer having (a) a density of from about 0.910 g/cc to about 0.940 g/cc; (b) a weight average molecular weight of from about 150,000 g/mol to about 300,000 g/mol; and (c) a melt index at a load of 2.16 kg of from about 0.01 dg/10 min. to about 0.5 dg/min.; wherein a 1 mil blown film formed from the polymer composition is characterized by (i) a Dart Impact strength greater than about 175 g/mil; (ii) an Elmendorf machine direction tear strength greater than about 20 g/mil; and (iii) an Elmendorf transverse direction tear strength greater than about 475 g/mil.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: December 12, 2017
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Ashish M Sukhadia, Guylaine St. Jean, Qing Yang, Max P. McDaniel
  • Patent number: 9828698
    Abstract: The present invention is directed to a new polypropylene composition comprising a propylene homopolymer, to a melt-blown fiber comprising the polypropylene composition, to a melt blown web comprising the melt blown fiber and/or the polypropylene composition, to an article comprising the melt blown fiber and/or the melt blown web as well as to the use of the polypropylene composition for improving the relation between pressure drop and hydrohead of a melt-blown web.
    Type: Grant
    Filed: December 1, 2014
    Date of Patent: November 28, 2017
    Assignee: BOREALIS AG
    Inventors: Jingbo Wang, Katja Klimke, Joachim Fiebig, Henk Van Paridon, Anita Luyten, Markus Gahleitner
  • Patent number: 9809666
    Abstract: The present invention relates to a polypropylene composition comprising a multimodal propylene random copolymer with at least one comonomer selected from alpha-olefins with 2 or 4 to 8 carbon atoms, wherein the polypropylene composition has a melt flow rate MFR2 (2.16 kg, 230° C.) of 0.05 to 1.0 g/10 min, determined according to ISO 1133, a polydispersity index (PI) of 2.0 to 7.0, and a Charpy Notched Impact Strength at 0° C. of more than 4.0 kJ/m2, determined according to ISO 179/1eA:2000 using notched injection moulded specimens, a process for producing said polypropylene composition, an article comprising said polypropylene composition and the use of said polypropylene composition for the production of an article.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: November 7, 2017
    Assignees: ABU DHABI POLYMERS COMPANY LIMITED (BOROUGE), BOREALIS AG
    Inventors: Cristian Hedesiu, Kauno Alastalo
  • Patent number: 9796840
    Abstract: A polyolefin composition made using a propylene/ethylene copolymer (90.0 wt % to 99.0 wt %) and a heterophasic (second) propylene/ethylene copolymer (1.0 wt % to 10.0 wt %). The composition is useful for the production of pressure pipes, e.g., for use at low temperature, and of pipes for use in heat radiating systems, among other applications. The propylene/ethylene copolymer has between 1.0 wt % and 8.0 wt % ethylene derived units. The second propylene/ethylene copolymer is made using (1) a propylene homopolymer or a propylene/ethylene copolymer (12 wt % to 52 wt %) and (2) a propylene ethylene copolymer (48 wt % to 88 wt %) that has a content of ethylene derived units ranging from 15.0 wt % to 42.0 wt %.
    Type: Grant
    Filed: April 28, 2015
    Date of Patent: October 24, 2017
    Assignee: Basell Poliolefine Italia S.r.l.
    Inventors: Monica Galvan, Francesca Tisi, Giampaolo Pellegatti, Sandro Bolognesi, Andreas Neumann
  • Patent number: 9791358
    Abstract: A method of preparing a polymer article comprising determining a zero-shear viscosity for a polymer sample; sieving the polymer sample to produce a plurality of sieved polymer samples; determining a molecular weight distribution for each of the plurality of sieved polymer samples; determining a zero-shear viscosity for each of the plurality of sieved polymer samples; determining a compositional diversity of each of the plurality of sieved polymer samples based on a ratio of the zero shear viscosity for each of the plurality of sieved polymer samples to the zero shear viscosity for the polymer sample; identifying a polymer sample having a ratio of the zero shear viscosity to zero shear viscosity for the polymer sample of from about 0.5 to equal to or greater than about 3; and preparing a polymer article from the identified polymer sample.
    Type: Grant
    Filed: March 28, 2017
    Date of Patent: October 17, 2017
    Assignee: Chevron Phillips Chemical Company, LP
    Inventors: Youlu Yu, Qing Yang, Paul J. Deslauriers, Mark J. Lamborn, Yongwoo Inn
  • Patent number: 9790303
    Abstract: A method for controlling a slurry polymerization for the preparation of polyethylene, where the polyethylene is formed in a polymerization reactor comprising a vapor section by contacting a Ziegler-type catalyst, ethylene, and either hydrogen or, as comonomer(s), one or more C3 to C10 alpha-olefins or hydrogen and one or more C3 to C10 alpha-olefins, wherein the ethylene partial pressure is maintained by adjusting the flow rate of the catalyst to the polymerization reactor and the hydrogen/ethylene and comonomer/ethylene partial pressure ratios are maintained by adjusting the flow rates of hydrogen and/or of the one or more comonomers to the polymerization reactor.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: October 17, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Reinhard Kuehl, Rodrigo Carvajal, Gerhardus Meier, Elke Damm, Phil Pyman
  • Patent number: 9783661
    Abstract: High density polyethylene blend, comprising (A) 55 to 99 wt % of a high density multimodal polyethylene component having a density of at least 930 kg/m3, and (B) 1 to 45 wt % of an ultra-high molecular weight polyethylene homo- or copolymer component having (i) an intrinsic viscosity of at least 15.0 dl/g (ii) an a nominal viscosity molecular weight (Mv) of at least 2.0*106 g/mol and (iii) a molecular weight of (Mw) of at least 0.7*106 g/mol, and wherein said blend has an MFR21 of 0.05 to 10.0 g/10 min and a density of at least 925 kg/m3.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: October 10, 2017
    Assignee: BOREALIS AG
    Inventors: Qizheng Dou, Alexandra Romina Albunia, Yi Liu
  • Patent number: 9758654
    Abstract: A polypropylene resin composition, particularly, an olefin-based polypropylene resin composition includes: about 50 to 70% by weight of a high crystalline polypropylene; about 10 to 20% by weight of a reactor made thermoplastic polyolefin (RTPO) polypropylene; about 5 to 20% by weight of an inorganic filler; about 10 to 20% by weight of a rubber elastomer; and about 3% by weight or less of a slip agent, based on the total weight of the composition. The composition provides excellent physical properties such as high strength and impact resistance, and thus superior resistance to damage, and shows low gloss characteristics and excellent fluidity. The polypropylene resin composition is used as interior and exterior materials for vehicles.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: September 12, 2017
    Assignees: Hyundai Motor Company, Daeha Co., Ltd.
    Inventors: Kyeong-Hoon Jang, Dae-Sik Kim, Han-Ki Lee, Hak-Soo Kim, Jung-Gyun Noh, Tae-Sik Lee, Im-Taek Sung, Kyung-Beom Seo
  • Patent number: 9754690
    Abstract: A filled composition for radiation shielding includes at least one polymer ingredient and at least one metal-containing filler. The at least one polymer ingredient is selected from the group consisting of a polyolefin elastomer, a polyolefin co-polymer, a polyolefin ter-polymer, and a combination thereof. The polyolefin elastomer, the polyolefin co-polymer, or the polyolefin ter-polymer includes monomer units derived from ethylene and at least one vinyl monomer having more than three carbon atoms. The at least one metal-containing filler is selected from a metal filler, a metal compound or a combination thereof.
    Type: Grant
    Filed: October 31, 2013
    Date of Patent: September 5, 2017
    Assignee: LITE-TECH, INC.
    Inventors: Victoria A. Rebar, Andrew B. Crawford, Nicholas A. Moses, David M. Krug
  • Patent number: 9738778
    Abstract: A two steps polymerization process for obtaining a polyolefin composition comprising: a) from 25 wt % to 70 wt % of a propylene homopolymer or a propylene-ethylene copolymer containing from 0.1 wt % to 10 wt % of ethylene derived units; b) from 27 wt % to 70 wt % of a copolymer of ethylene and at least one C3-C20 alpha olefins, wherein the ethylene derived units content ranges from 15 wt % to 70 wt %; c) from 3 wt % to 20 wt % of polyethylene homopolymer or an ethylene and at least one C3-C20 alpha olefins copolymer; the sum a)+b)+c) being 100, wherein said process comprises: step a) contacting under polymerization conditions propylene, optionally ethylene and the catalyst system in order to obtain component a), step b) contacting under polymerization conditions ethylene and at least one C3-C20 alpha-olefins and the catalyst system in order to obtain components b) and c); wherein the catalyst system comprises a metallocene compound and an iron complex.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Fabiana Fantinel, Bodo Richter, Shahram Mihan, Massimo Covezzi, Claudio Cavalieri, Michele Grazzi
  • Patent number: 9738735
    Abstract: The present disclosure relates to a process for the preparation of polyethylene by polymerizing in a slurry ethylene and optionally one or more C3 to C10 alpha-olefins. In some embodiments, the polymerization is carried out in a cylindrical polymerization reactor equipped with an agitator for mixing the contents of the reactor and inducing a flow of the slurry, the ethylene is fed into the reactor by an ethylene injection system comprising one or more injection nozzles which project through the bottom reactor head or through the reactor wall and extend from 0.02-0.5 times the inner diameter D into the reactor, and the ethylene exits the injection nozzle with an exit velocity from 10-200 m/s.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Reinhard Kuehl, Harald Prang, Rodrigo Carvajal, Elke Damm, Phil Pyman
  • Patent number: 9738777
    Abstract: The present disclosure relates to a polyethylene composition with improved swell ratio and mechanical properties for use in preparing blow-molded articles and having the following features: 1) a density from 0.945 to less than 0.952 g/cm3; 2) an MIF/MIP ratio from 15 to 30; 3) a Shear-Induced Crystallization Index (SIC) from 2.5 to 5.5.
    Type: Grant
    Filed: January 17, 2017
    Date of Patent: August 22, 2017
    Assignee: Basell Polyolefine GmbH
    Inventors: Iakovos Vittorias, Jens Wiesecke, Bernd Lothar Marczinke, Gerhardus Meier, Ulf Schüller, Volker Dolle, Johannes-Friedrich Enderle, Dieter Lilge, Barbara Gall
  • Patent number: 9732209
    Abstract: Polypropylene composition having a melt flow rate MFR2 (230° C.) of equal or above 15 g/10 min comprising: (a) a crystalline polypropylene matrix; (b) an elastomeric propylene copolymer phase having a propylene content in the range of 40 to 80 wt.-%, and an intrinsic viscosity in the range of more than 0.7 to less or equal 2.5 dl/g; (c) a first polyethylene having a density in the range 905 to 925 kg/m3 and melt flow rate MFR2 (190° C.) of below 30 g/10 min; (d) a second polyethylene having a density of above 915 kg/m3, and a melt flow rate MFR2 (190° C.) of equal or above 30 g/10 min.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: August 15, 2017
    Assignee: Borealis AG
    Inventors: Cornelia Kock, Christelle Grein, Floran Prades
  • Patent number: 9732208
    Abstract: Provided are: a polyethylene laminate that exhibits excellent flexibility, barrier properties, and cleanliness (a low occurrence of fine particles), that does not deform even after sterilization treatment at 121° C., and that maintains high transparency; and a medical container using same. The medical container is configured by layering: an outer layer and an inner layer that comprise from 20 to 80 wt % of a high-density polyethylene (A) having specific properties, from 0 to 50 wt % of a linear low-density polyethylene (B1), and from 5 to 40 wt % of an ethylene-based polymer (C); and an intermediate layer that comprises from 10 to 40 wt % of the high-density polyethylene (A) and from 60 to 90 wt % of the linear low-density polyethylene (B1).
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: August 15, 2017
    Assignee: TOSOH CORPORATION
    Inventors: Akeharu Tsuruta, Shinpei Hama, Yoshiyuki Moro
  • Patent number: 9708427
    Abstract: A polymerization process for stable gas phase reactor start-up when making ethylene copolymers having relatively high molecular weight distribution and melt flow ratio.
    Type: Grant
    Filed: May 24, 2016
    Date of Patent: July 18, 2017
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Victoria Ker, Sergio Alejandro Guillen-Castellanos, Yan Jiang
  • Patent number: 9701774
    Abstract: Provided are a metallocene compound having a novel structure capable of preparing a polyolefin having a broad molecular weight distribution and a high molecular weight, and a method of preparing the same. The metallocene compound according to the present invention includes a non-crosslinked catalyst structure, and implements copolymerizability in an ansa-type catalyst level, thereby preparing a polyolefin having a high molecular weight of 300,000 or more.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: July 11, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Se Young Kim, Min Seok Cho, Dae Hwan Kim, Sung Min Lee, Sung Ho Park, Ki Soo Lee, Bog Ki Hong, Yong Ho Lee, Kyung Jin Cho, Chang Woan Han, Jin Young Park
  • Patent number: 9695290
    Abstract: Films including a Layer A comprising 50.0 to 100.0 wt. %, based on the weight of the Layer A, of an ethylene-based polymer composition having therein a hafnium:zirconium (ppm/ppm) ratio >1.0, a CDBI less than 50%, and a g?vis?0.98; wherein the Layer A is substantially free of polyethylene having 0.50?g?vis?0.85 are described. Particular films are suitable as cast films for TD shrink and draw tape bag applications.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 4, 2017
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventor: Alan M. Malakoff
  • Patent number: 9689098
    Abstract: The method of producing a spunbond nonwoven fabric promotes the bleed out of the additive, which has pleasant texture such as tactile feel and excellent flexibility. The spunbond nonwoven fabric is obtained by this method. Specifically, (1) the method of producing a spunbond nonwoven fabric includes annealing a spunbond nonwoven fabric formed by using a crystalline resin composition (I) containing a low crystalline olefin polymer (a) with an elastic modulus of 10 to 450 MPa in a content of 1 to 50% by mass, a high crystalline olefin polymer (b) with an elastic modulus of 500 to 2,000 MPa, the content of the component (b) being the rest, and an additive (c) in a content of 1 to 20,000 ppm by mass.
    Type: Grant
    Filed: January 31, 2012
    Date of Patent: June 27, 2017
    Assignee: IDEMITSU KOSAN CO., LTD.
    Inventors: Yohei Koori, Tomoaki Takebe, Yutaka Minami