Six Carbon Atoms Only Patents (Class 526/348.4)
  • Patent number: 11117991
    Abstract: Methods for olefin polymerization are described. The methods include a) forming a first polyolefin under a first set of polymerization conditions in the presence of a first catalyst composition and a first concentration of at least a first continuity additive composition, the first polyolefin composition having a target density, ?1, and a target Flow Index, FI1; and b) forming a second polyolefin composition under a second set of polymerization conditions in the presence of a second catalyst composition and a second concentration of a second continuity additive composition, the second polyolefin composition having a target density, ?2, and a target Flow Index, FI2; wherein the process is essentially free of providing a polymerization neutralizing composition between steps a) and b).
    Type: Grant
    Filed: August 5, 2019
    Date of Patent: September 14, 2021
    Assignee: Univation Technologies, LLC
    Inventors: Bruce J. Savatsky, R. Eric Pequeno, Brandon C. Locklear
  • Patent number: 10120257
    Abstract: Disclosed herein is an electrochromic device including an active layer in which a catalyst facilitating oxidation-reduction reaction is homogeneously dispersed. The electrochromic device includes at least one active layer to reversibly exhibit a transparent state upon hydrogenation and a reflective state upon dehydrogenation, wherein the active layer includes a catalyst to facilitate a rate of reversible conversion between the transparent state and the reflective state.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: November 6, 2018
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Cho-Young Lee, Hye Jin Kim, Jun Sung Choi
  • Patent number: 9567411
    Abstract: Process for polymerizing monomer in a reactor by withdrawing an effluent from the reactor which is a slurry of polymer solids in a liquid medium and contacting a first stream containing vapor derived from the effluent withdrawn from the reactor with a feed stream to the reactor. The first stream which has the majority of the vaporized components of the liquid medium in the effluent withdrawn from the reactor is brought into contact with the feedstream to the reactor at a pressure of 0.5 MPa or above and/or the first stream is separated from the polymer withdrawn from the reactor at a pressure of 0.5 MPa or above.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 14, 2017
    Assignee: INEOS EUROPE AG
    Inventors: Daniel Marissal, Philip Van Breuseghem, Brent R. Walworth
  • Patent number: 9127889
    Abstract: Process for producing a polymer product in a slurry polymerization process, which slurry polymerization process includes a slurry heater for heating a stream of polymer product slurry withdrawn from a slurry reactor. The process includes reconfiguring the slurry heater from an initial slurry heater configuration to a subsequent slurry heater configuration and further where the slurry heater is reconfigured to form a subsequent slurry heater having a different total length and/or a different average internal diameter than the initial slurry heater.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: September 8, 2015
    Assignee: INEOS EUROPE AG
    Inventors: Marc Parisel, Brent R. Walworth
  • Patent number: 8962755
    Abstract: A dual reactor solution process gives high density polyethylene compositions containing a first ethylene copolymer and a second ethylene copolymer and which have good processability, toughness, and environmental stress crack resistance combined with good organoleptic properties. The polyethylene compositions are suitable for compression molding or injection molding applications and are particularly useful in the manufacture of caps and closures for bottles.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: February 24, 2015
    Assignee: Nova Chemicals (International) S.A.
    Inventors: XiaoChuan Wang, Yves Lacombe, Mark Edmund Weber
  • Patent number: 8927671
    Abstract: The present invention relates to an ethylene-?-olefin copolymer satisfying the following requirements (A) to (E): (A) the MFR is 0.1 to 50 g/10 min., (B) the density is 860 to 970 kg/m3, (C) the Mz/Mw is from 3.0 to 6.0, (D) the fraction having a molecular weight of 106.5 g/mol of the ethylene-?-olefin copolymer has a branching index g? of 0.26 or more, and (E) the Ea is 60 to 90 kJ/mol.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 6, 2015
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Jumma Nomura, Masato Takano, Yoshinobu Nozue
  • Patent number: 8921500
    Abstract: The instant invention provides an ethylene/alpha-olefin interpolymer suitable for use in shrinkage film applications, and articles made therefrom. The ethylene/alpha-olefin interpolymer according to the present invention has a CDBI of less than 60%, and comprises at least two fractions in crossfractionation of the ethylene/alpha-olefin interpolymer, eluting from 85° C. to 90° C. and from 90° C. to 95° C., comprising a weight fraction ratio of >0.68 and a molecular weight homogeneity index of greater than 0.65; wherein the weight fraction ratio is the ratio of the weight of polymer in each fraction divided by the weight of polymer eluting between 95° C. and 100° C. and the molecular weight homogeneity index is the ratio of the weight average molecular weight of the polymer in the fraction divided by the weight average molecular weight of the polymer eluting between 95° C. and 100° C., and wherein the ethylene/alpha-olefin interpolymer has a density in the range of 0.920 to 0.940 g/cm3.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Teresa P. Karjala, Lawrence J. Effler, Jr., Mehmet Demirors, Cristina Serrat, Lonnie G. Hazlitt
  • Patent number: 8889200
    Abstract: A chewing gum contains a water-insoluble gum base portion containing a polyolefin thermoplastic elastomer; a water-soluble bulk portion; and at least one flavor component, which is cud-forming and chewable at mouth temperature.
    Type: Grant
    Filed: September 12, 2008
    Date of Patent: November 18, 2014
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Chungsea Shen, Joo H. Song, Bruno Padovani, David W. Record
  • Patent number: 8841398
    Abstract: The present invention provides a process for producing an ?-olefin polymer comprising polymerizing or copolymerizing (a) C3 or higher ?-olefin(s) in the presence of an olefin polymerization catalyst comprising solid titanium catalyst component (I) containing titanium, magnesium, halogen, and a compound with a specific structure having two or more ether linkages and organometallic catalyst component (II) with high catalytic activity. In this process, particularly even in (co)polymerizing (a) higher olefin(s), demineralization is unnecessary. A 4-methyl-1-pentene-based polymer obtained by polymerization using the catalyst of the present invention is excellent in tacticity, transparency, heat resistance, and releasability, and the polymer is particularly suitable for a release film.
    Type: Grant
    Filed: August 6, 2010
    Date of Patent: September 23, 2014
    Assignee: Mitsui Chemicals, Inc.
    Inventor: Tooru Tanaka
  • Publication number: 20140248488
    Abstract: [Object] To provide a resin composition with excellent mold releasability and blocking resistance. [Solution] A resin composition containing a 4-methyl-1-pentene polymer includes 0.01 to 10 parts by mass of a 4-methyl-1-pentene polymer (B) per 100 parts by mass of at least one resin (A) selected from the group consisting of thermoplastic resins and thermosetting resins, wherein the 4-methyl-1-pentene polymer (B) has (B1) an intrinsic viscosity [?] of 0.01 or more but less than 0.50 dl/g measured at 135° C. in a decalin solvent.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Kuniaki KAWABE, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
  • Patent number: 8802768
    Abstract: A novel polymer composition is described comprising ethylene homopolymers and/or copolymers of ethylene with C3-C8-alpha-olefins which polymer composition has a density of from 0.940 to 0.949 g/cm3, a melt index (HLMI) according to DIN EN ISO 1133:2005, condition G at 190° C. and 21.6 kg, of from 3 to 7 g/10 min. and a Hostalen Long Chain Branching Index (HLCBI) of from 3 to 8, and which polymer composition is produced by polymerisation with one or more Ziegler catalysts in a series of at least two polymerization reactors. The new polymer composition can in particular be used for blow moulding of intermediate bulk containers.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: August 12, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Diana Dotsch, Bernd Lothar Marczinke, Gerhardus Meier, Maclovio Herrera Salinas
  • Publication number: 20140179872
    Abstract: This invention relates to inventive ethylene-based copolymers comprising 75.0 wt % to 99.5 wt % of ethylene-derived units and 0.5 wt % to 25.0 wt % of C3 to C20 olefin derived units; the inventive ethylene-based copolymer having: a density in the range of from 0.900 to less than 0.940 g/cm3; a g?(vis) of less than 0.80; a melt index, I2, of from 0.25 to 1.5 g/10 min.; a Mw/Mn within a range from 3.0 to 6.0, and Mz/Mn greater than 8.0; and an absence of a local minimum loss angle at a complex modulus, G*, of 1.00×104 to 3.00×104 Pa.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 26, 2014
    Inventors: David M. Fiscus, Laughlin G. McCullough, John F. Walzer, Jr., Jay L. Reimers
  • Patent number: 8759460
    Abstract: New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s?1, at 150° C.), branching index g? equal or lower than 0.9 (at Mw of 2·106 g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100° C., for a time of at least 10 minutes.
    Type: Grant
    Filed: November 30, 2009
    Date of Patent: June 24, 2014
    Assignee: Bassell Polyolefine GmbH
    Inventors: Eleonora Ciaccia, Iakovos Vittorias, Shahram Mihan, Lenka Lukesova, Dieter Lilge, Maclovio Herrera Salinas, Gerhardus Meier, Gerd Mannebach
  • Patent number: 8716423
    Abstract: A novel polyethylene is devised which polyethylene is particularly advantageous for manufacturing rotomoulded articles.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: May 6, 2014
    Assignee: Basell Polyolefine GmbH
    Inventors: Gerd Mannebach, Heinz Vogt, Fabiana Fantinel, Shahram Mihan, Peter Bisson, Cees Besems, Gerhardus Meier, Ulf Schüller, Barbara Gall, Iakovos Vittorias, Manfred Hecker, Michael Olmscheid
  • Publication number: 20140030460
    Abstract: An object of the invention is to provide an ethylene-based polymer excellent in moldability and durability, and also excellent in the balance of stiffness and durability, and to provide a molded product of hollow plastic using the ethylene-based polymer. The ethylene-based polymer according to the invention is an ethylene-based polymer having specific characteristics and manufactured by a homopolymerization of ethylene or a copolymerization of ethylene and ?-olefin using a chromium catalyst.
    Type: Application
    Filed: March 29, 2012
    Publication date: January 30, 2014
    Applicant: JAPAN POLYETHYLENE CORPORATION
    Inventors: Takashi Monoi, Yuuichi Kuzuba, Satoshi Kanazawa, Kouichi Ogawa
  • Publication number: 20130345377
    Abstract: Ethylene copolymers having a relatively high melt flow ratio and a multimodal profile in a temperature rising elution fractionation (TREF) plot are disclosed. The copolymers can be made into film having good dart impact values and good stiffness properties under decreased extruder pressures.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 26, 2013
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Victoria Ker, Patrick Lam, Yan Jiang, Peter Phung Minh Hoang, Darryl J. Morrison, Charles Ashton Garret Carter
  • Publication number: 20130324691
    Abstract: The present invention rerates to an ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, wherein the ethylene-?-olefin copolymer has a density of 860 to 950 kg/m3, a melt flow rate of 0.1 to 20.0 g/10 minutes, a ratio of a weight average molecular weight to a number average molecular weight measured by gel permeation chromatography of 2.0 to 3.5, a swell ratio of 2.0 to 2.8, and an activation energy of flow of 31.0 to 35.0 kJ/mol.
    Type: Application
    Filed: February 21, 2012
    Publication date: December 5, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventor: Yoshinobu Nozue
  • Publication number: 20130317185
    Abstract: A novel gas phase polymerisation method is devised, for polymerisation of low and ultralow density polyethylene.
    Type: Application
    Filed: November 24, 2011
    Publication date: November 28, 2013
    Applicant: Basell Polyolefine GmbH
    Inventors: Fabiana Fantinel, Shahram Mihan, Gerhardus Meier, Ulf Schueller, Maclovio Herrera Salinas, Giampaolo Pellegatti, Gerd Mannebach
  • Patent number: 8586163
    Abstract: Heterophasic propylene copolymer (HECO) comprising wherein the heterophasic propylene copolymer (HECO) is ?-nucleated and the elastomeric phase has an intrinsic viscosity measured in tetraline at 135° C. of equal or below 4.0 dl/g.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: November 19, 2013
    Assignee: Borealis Technology Oy
    Inventors: Bo Malm, Klaus Bernreitner, Franz Ruemer
  • Patent number: 8492498
    Abstract: A polymer having a density of from about 0.94 g/cm3 to about 0.96 g/cm3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.
    Type: Grant
    Filed: February 21, 2011
    Date of Patent: July 23, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Richard M. Buck, Albert P. Masino, Qing Yang, Paul J. DesLauriers, Steven J. Secora, Elizabeth M. Lanier, Guylaine St. Jean, Jon D. Ratzlaff, Christopher E. Wittner
  • Patent number: 8450437
    Abstract: The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity.
    Type: Grant
    Filed: January 12, 2012
    Date of Patent: May 28, 2013
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, Joel L. Martin, Youlu Yu, David C. Rohlfing, Michael D. Jensen
  • Patent number: 8431662
    Abstract: This invention relates to a polymacromonomer comprising at least one macromonomer and from 0 to 20 wt % of a C2 to C12 comonomer, wherein the macromonomer has vinyl termination of at least 70%, and wherein the polymacromonomer has: a) a g value of less than 0.6, b) an Mw of greater than 30,000 g/mol, c) an Mn of greater than 20,000 g/mol, d) a branching index (g?)vis of less than 0.5, e) less than 25% vinyl terminations, f) at least 70 wt % macromonomer, based upon the weight of the polymacromonomer, g) from 0 to 20 wt % aromatic containing monomer, based upon the weight of the polymacromonomer and h) optionally, a melting point of 50° C. or more. This invention also relates to processes to make such polymacromonomers.
    Type: Grant
    Filed: August 20, 2012
    Date of Patent: April 30, 2013
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Patrick Brant, Andrew G. Narvaez, Jr., Donna J. Crowther
  • Patent number: 8383731
    Abstract: An adhesive blend is described that can include a semi-crystalline copolymer of propylene and at least one comonomer selected from the group consisting of ethylene and at least one C4 to C20 ?-olefin, the copolymer having a weight average molecular weight (Mw) from about 15,000 to about 200,000; an melt index (MI) from about 7 dg/min to about 3000 dg/min as measured by ASTM D 1238 (B), and a (Mw/Mn) of approximately 2. Various production processes are also described. Also described are adhesive compositions and methods for making adhesive compositions having polymers or polymer blends with melt flow rates (MFRS) equal to and above 250 dg/min. at 230°C. Certain specific embodiments of the invention involve the use of a free radical initiator, e.g., a peroxide.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: February 26, 2013
    Assignee: Exxonmobil Chemical Patents Inc.
    Inventors: Kenneth Lewtas, Sudhin Datta, Charles Cozewith, Bruce A. Harrington, David J. Lohse, Olivier J. F. Georjon, Anthony G. Karandinos, Keith A. Nelson, Jean M. Tancrede
  • Patent number: 8349975
    Abstract: Method for transitioning from a first process for producing a first polymer to a second process for producing a second polymer. The first and second processes each include contacting a principal olefin and a comonomer with a catalyst under gas phase polymerization conditions to form the first or second polymer. The first and second processes utilize the same olefin but differ in at least one of the comonomer used and the reaction temperature at which the polymer is produced. The respective first or second polymer is then contacted with a purge gas to remove unreacted monomers. The method includes changing the flow rate of purge gas from a first rate to a second rate defined relative to a flow rate and temperature used for an earlier polymer produced using the same comonomer as the second process.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: January 8, 2013
    Assignee: Ineos Europe Limited
    Inventor: Jean-Louis Chamayou
  • Patent number: 8318873
    Abstract: Catalyst compositions comprising a first metallocene compound, a second metallocene compound, an activator-support, and an organoaluminum compound are provided. An improved method for preparing cyclopentadienyl complexes used to produce polyolefins is also provided.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: November 27, 2012
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Kumudini C. Jayaratne, Michael D. Jensen, Qing Yang
  • Patent number: 8318883
    Abstract: A polymer having a density of from about 0.960 g/cc to about 0.965 g/cc and a melt index of from about 0.2 g/10 min. to about 0.6 g/10 min. wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 150 hours when measured in accordance with ASTM D 1693 condition B, 100% Igepal. A polymer having a density of from about 0.955 g/cc to about 0.960 g/cc and a melt index of from about 0.2 g/10 min. to about 0.6 g/10 min. wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 500 hours when measured in accordance with ASTM D 1693 condition B, 100% Igepal.
    Type: Grant
    Filed: June 8, 2011
    Date of Patent: November 27, 2012
    Assignee: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, William B. Beaulieu, Youlu Yu, Tony R. Crain
  • Patent number: 8314197
    Abstract: Process for producing a degassed polymer powder, by a) feeding i) a principal monomer, and ii) one or more comonomers in an amount of at least 5000 ppmw relative to the principal monomer feed rate, and iii) optionally an added alkane having 2 to 10 carbon atoms, fed in an amount of at least 1000 ppmw relative to the principal monomer feed rate; into a polymerization reactor. The monomer and comonomers react to form a polymer including residual hydrocarbons having one or more hydrocarbons with 3 to 10 carbon atoms, and b) passing the polymer to a degassing step where it is contacted with a purge gas to remove some of the residual hydrocarbons.
    Type: Grant
    Filed: September 21, 2009
    Date of Patent: November 20, 2012
    Assignee: Ineos Europe Limited
    Inventors: Jean-Louis Chamayou, Daniel Marissal
  • Patent number: 8273838
    Abstract: Embodiments of the invention provide a class of propylene/?-olefin block interpolymers. The propylene/?-olefin interpolymers are characterized by an average block index, ABI, which is greater than zero and up to about 1.0 and a molecular weight distribution, Mw/Mn, greater than about 1.3. Preferably, the block index is from about 0.2 to about 1. In addition or alternatively, the block propylene/?-olefin interpolymer is characterized by having at least one fraction obtained by Temperature Rising Elution Fractionation (“TREF”), wherein the fraction has a block index greater than about 0.3 and up to about 1.0 and the propylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.3.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: September 25, 2012
    Assignee: Dow Global Technologies LLC
    Inventors: Colin Li Pi Shan, Lonnie G. Hazlitt, Yunwa Wilson Cheung, Benjamin C. Poon, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, XiaoHua Qiu, Angela N. Taha
  • Publication number: 20120238720
    Abstract: Polyethylene films having a good balance of optical and mechanical properties are disclosed. The films are derived from ethylene copolymer compositions made with a suitably substituted phosphinimine catalyst. The ethylene copolymers have very narrow molecular weight distributions and broadened comonomer distributions.
    Type: Application
    Filed: February 27, 2012
    Publication date: September 20, 2012
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: Patrick Lam, Victoria Ker, Charles Ashton Garret Carter, Benjamin Milton Shaw, Cliff Robert Baar, Alexei Kazakov, Ian Douglas McKay, Dusan Jeremic
  • Publication number: 20120214954
    Abstract: A polymer having a density of from about 0.94 g/cm3 to about 0.96 g/cm3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.
    Type: Application
    Filed: February 21, 2011
    Publication date: August 23, 2012
    Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LP
    Inventors: Richard M. BUCK, Albert P. MASINO, Qing YANG, Paul J. DESLAURIERS, Steven J. SECORA, Elizabeth M. LANIER, Guylaine ST. JEAN, Jon D. RATZLAFF, Christopher E. WITTNER
  • Publication number: 20120172548
    Abstract: A polyolefin has 1) a density in the range of 0.93 to 0.97 g/cm3, 2) a BOCD (Broad Orthogonal Co-monomer Distribution) index defined by a given equation in the range of 1 to 5, and 3) a molecular weight distribution (weight average molecular weight/number average molecular weight) in the range of 4 to 10. A supported hybrid metallocene catalyst comprises a first metallocene compound represented by a first given formulae, a second metallocene compound represented by one of three given formulae, and a support.
    Type: Application
    Filed: December 27, 2011
    Publication date: July 5, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Joon-Hee CHO, Ki-Soo LEE, Yong-Gyu HAN, Dae-Sik HONG, Heon-Yong KWON, Jong-Sang PARK, Seon Kyoung KIM
  • Patent number: 8211981
    Abstract: Disclosed is a poly(4-methyl-1-pentene) resin composition having an excellent balance between micropore formability and toughness, which can sufficiently form fine pores by drawing and does not cause a break during drawing. The poly(4-methyl-1-pentene) resin composition contains 0-90 parts by mass of a 4-methyl-1-pentene homopolymer (A) and 10-100 parts by mass of a 4-methyl-1-pentene copolymer (B) having a structural unit derived from 4-methyl-1-pentene and a structural unit derived from a C2-20 ?-olefin other than 4-methyl-1-pentene. The content of the structural unit derived from a C2-20 ?-olefin other than 4-methyl-1-pentene is 0.1-2.1% by mass relative to the total amount of the homopolymer (A) and the copolymer (B). The poly(4-methyl-1-pentene) resin composition also contains 0.1-800 ppm of a nucleator (C) relative to the total weight of the homopolymer (A) and the copolymer (B).
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 3, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Tooru Tanaka, Youhei Houtani, Atsushi Morita
  • Patent number: 8163858
    Abstract: A polyvinylidene difluoride copolymer with a fluoroolefin selected from 2,3,3,3-tetrafluoropropene, 1,1,3,3,3-pentafluoropropene, 2-chloro-pentafluoropropene, hexafluoropropylene, trifluoroethylene, chlorotrifluoroethylene, 3,3,3-trifluoro-2-trifluoromethylpropene and a mixture thereof, wherein the stoichiometry of the co-monomers defines the barrier properties of the copolymer. Such polymers include moisture barrier copolymers and oxygen barrier copolymer. Processes for preparing such moisture barrier copolymers and oxygen barrier copolymers are also provided.
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: April 24, 2012
    Assignee: Honeywell International Inc.
    Inventors: George J Samuels, Gregory J Shafer, Tao Li, Clinton A Threlfall, Nancy Iwamoto, Eric J Rainal
  • Publication number: 20120095157
    Abstract: The present invention describes polymer comprising one or more C3 to C40 olefins and having a Mw of 100,000 or less and a Dot T-Peel of 1 Newton or more. The polymer may have a branching index (g?) of 0.95 or less measured at the Mz of the polymer, and a heat of fusion of 1 to 70 J/g. Also described are polymers of homopolypropylene or a copolymer of propylene and up to 5 mole % ethylene having: an isotactic run length of 1 to 30 as determined by Carbon 13 NMR and a percent of r dyad of greater than 20%, preferably from 20 to 70% as determined by Carbon 13 NMR. Also described are methods of making these and other polymers.
    Type: Application
    Filed: October 25, 2011
    Publication date: April 19, 2012
    Inventors: Peijun Jiang, Armenag Hagop Dekmezian, Jo Ann Marie Canich, Charles Lewis Sims, Ramin Abhari, Cesar Alberto Garcia-Franco, David Raymond Johnsrud
  • Publication number: 20120088894
    Abstract: A catalyst composition comprising a zirconium complex of a polyvalent aryloxyether and a polymerization processes employing the same, especially a continuous, solution polymerization of ethylene and one or more C3-30 olefins or diolefins to prepare interpolymers having improved processing properties, are disclosed.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: Dow Global Technologies LLC
    Inventors: Wayde V. Konze, Daniel D. VanderLende
  • Publication number: 20120065351
    Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 850 to 970 kg/m3, having a melt flow rate (MFR) of 0.01 to 100 g/10 min, having a bimodal molecular weight distribution, and having a ratio (Mw/Mn) of the weight average molecular weight (Mw) thereof to the number average molecular weight (Mn) thereof of 31 to 70, wherein the number (NLCB) of branches having 5 or more carbon atoms measured by 13C-NMR is from 0.7 to 1.0 per 1000 carbon atoms. This copolymer is superior in a balance between a melt tension, an extrusion load at extruding, and a mechanical strength.
    Type: Application
    Filed: May 27, 2010
    Publication date: March 15, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yoshinobu Nozue, Naoko Ochi
  • Publication number: 20120065346
    Abstract: An ethylene-?-olefin copolymer comprising monomer units derived from ethylene and monomer units derived from an ?-olefin having 3 to 20 carbon atoms, having a density (d) of 860 to 950 kg/m3, having a melt flow rate (MFR) of 0.01 to 100 g/10 min, having a bimodal molecular weight distribution, and having a single melting peak measured by a differential scanning calorimeter (DSC).
    Type: Application
    Filed: May 27, 2010
    Publication date: March 15, 2012
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yoshinobu Nozue, Naoko Ochi
  • Patent number: 8129489
    Abstract: The present invention provides an ethylene polymer that has excellent fluidity and moldability as well as gives a molded product having excellent mechanical strength. The ethylene polymer of the present invention contains 0.02 to 1.50 mol % of a constitutional unit derived from ?-olefin having 6 to 10 carbon atoms, and has the density of 945 to 975 kg/m3, which satisfies both of the following requirements [1] and [2] simultaneously: [1] in CFC, all the components having a molecular weight of 100,000 or more are eluted at a temperature of 85° C. or higher; and [2] the components eluted at a temperature of 80° C. or lower account for up to 5% of all the components eluted in CFC.
    Type: Grant
    Filed: August 12, 2005
    Date of Patent: March 6, 2012
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Masahiko Okamoto, Tetsuji Kasai, Yasushi Tohi, Koji Endo, Shiro Otsuzuki, Takahiro Akashi, Kenji Iwamasa, Yoshiyuki Hirase, Keiko Fukushi, Shinichi Nagano
  • Publication number: 20120022223
    Abstract: An alkene interpolymer is prepared by polymerizing at least one 3-substituted C4-10 alkene and at least one C2-8 alkene in a gas phase polymerization using a polymerization catalyst system.
    Type: Application
    Filed: January 12, 2010
    Publication date: January 26, 2012
    Applicant: Evonik Oxeno GmbH
    Inventors: Michael Grass, Ted Pettijohn, Stefan Buchholz, Gerhard Ellermann, Pal Bentzrod, Tore Dreng, Jarmo Lindroos
  • Publication number: 20120010354
    Abstract: A film, comprising: an interpolymer of ethylene; and a 3-substituted C4-10 alkene, wherein said interpolymer is prepared using a catalyst system comprising a single site catalyst.
    Type: Application
    Filed: January 12, 2010
    Publication date: January 12, 2012
    Applicant: Evonik Oxeno GmbH
    Inventors: Michael Grass, Ted M. Pettijohn, Stefan Buchholz, Gerhard Ellermann, Tore Dreng, Arild Follestad, Jarmo Lindroos
  • Publication number: 20110313119
    Abstract: A catalyst composition comprising one or more metal complexes of a multifunctional Lewis base ligand comprising a bulky, planar, aromatic- or substituted aromatic-group and polymerization processes employing the same, especially continuous, solution polymerization of one or more ?-olefins at high catalyst efficiencies are disclosed.
    Type: Application
    Filed: April 24, 2007
    Publication date: December 22, 2011
    Inventors: Wayde V Konze, Daniel D. VanderLende
  • Patent number: 8058379
    Abstract: The present invention provides a 4-methyl-1-pentene polymer having excellent balance between heat resistance and rigidity, a process for producing the polymer, and a film and a LED mold formed from the polymer. The 4-methyl-1-pentene polymer comprises 50 to 100% by mass of a constituting unit derived from 4-methyl-1-pentene and 0 to 50% by mass of a constituting unit derived from at least one of olefins having 2 to 20 carbon atoms excluding 4-methyl-1-pentene, wherein the 4-methyl-1-pentene polymer is obtainable by continuously feeding a monomer forming the 4-methyl-1-pentene polymer and an organic solvent to a polymerization reactor and continuously extracting a polymerization reaction mixture containing the resulting 4-methyl-1-pentene polymer from the polymerization reactor.
    Type: Grant
    Filed: July 7, 2008
    Date of Patent: November 15, 2011
    Assignee: Mitsui Chemicals, Inc.
    Inventors: Kazuaki Yasuda, Tooru Tanaka
  • Publication number: 20110257348
    Abstract: The present invention provides a polymerization process utilizing a dual ansa-metallocene catalyst system. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, a non-bimodal molecular weight distribution, a ratio of Mw/Mn from about 3 to about 8, and a ratio of Mz/Mw from about 3 to about 6.
    Type: Application
    Filed: April 19, 2010
    Publication date: October 20, 2011
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Qing Yang, Max P. McDaniel, William B. Beaulieu, Joel L. Martin, Tony R. Crain
  • Publication number: 20110251360
    Abstract: New ethylene polymers having broad molecular weight distribution and long-chain branching, above all at high molecular weight fractions; the polymers have strain hardening equal or higher than 1.4 (at constant elongational rate of 0.5 s?1, at 150° C.), branching index g? equal or lower than 0.9 (at Mw of 2·106 g/mol). The polymers are prepared by using a mixed catalyst system comprising a polymerization catalyst based on a late transition metal component having a tridentate ligand, and a Ziegler polymerization catalyst annealed at a temperature higher than 100° C., for a time of at least 10 minutes.
    Type: Application
    Filed: November 30, 2009
    Publication date: October 13, 2011
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Eleonora Ciaccia, Iakovos Vittorias, Shahram Mihan, Lenka Lukesova, Dieter Lilge, Maclovio Herrara Salinas, Gerhardus Meier, Gerd Mannebach
  • Publication number: 20110224394
    Abstract: The present invention relates to a method for reducing/suppressing sheeting or agglomerates during polymerisation of olefins, especially during the fluidised bed gas phase polymerisation of olefins. In particular, the present invention relates to a method for reducing/suppressing sheeting or agglomerates during the product grade transition and/or catalyst transitions occurring during polymerisation of olefins.
    Type: Application
    Filed: October 8, 2010
    Publication date: September 15, 2011
    Applicant: Ineos Europe Limited
    Inventors: JR Llinas, JL Selo
  • Publication number: 20110218308
    Abstract: The purpose of the invention is to provide an ethylene-?-olefin copolymer, which has a high melt tension but a small neck-in, and a molded object produced by extrusion molding of the copolymer. An ethylene-?-olefin copolymer having a monomer unit based on ethylene and a monomer unit based on an ?-olefin having 3 to 20 carbon atoms, which has a melt flow rate (MFR) of 0.1 to 100 g/10 min, a density (d) of 850 to 940 kg/m3, a ratio (Mw/Mn) of weight average molecular weight (Mw) to number average molecular weight (Mn) of 2 to 12, and a value g* defined by the following formula (I) of 0.50 to 0.75: g*=[?]/([?]GPC×gSCB*)??(I).
    Type: Application
    Filed: November 10, 2009
    Publication date: September 8, 2011
    Inventors: Yoshinobu Nozue, Yasutoyo Kawashima, Naoko Ochi, Takuya Ogane
  • Publication number: 20110217499
    Abstract: A polyethylene for IM having excellent processing properties in terms of spiral flow testing is devised.
    Type: Application
    Filed: August 27, 2009
    Publication date: September 8, 2011
    Applicant: Basell Polyolefine GmbH
    Inventors: Gerd Mannebach, Harald Schmitz, Shahram Mihan, Rainer Karer, Manfred Hecker, Guido Funk, Adrian Popa
  • Publication number: 20110217537
    Abstract: A novel PE material is devised showing excellent mechanical/optical properties and process ability, e.g. for film extrusion. The polyethylene of the invention is produced in one single e.g. gas phase reactor.
    Type: Application
    Filed: September 22, 2009
    Publication date: September 8, 2011
    Applicant: BASELL POLYOLEFINE GMBH
    Inventors: Fabiana Fantinel, Gerd Mannebach, Shahram Mihan, Gerhardus Meier, Iakovos Vittorias
  • Patent number: 8008403
    Abstract: A polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with 1-alkenes and has a molar mass distribution width Mw/Mn of from 5 to 30, a density of from 0.92 to 0.955 g/cm3, a weight average molar mass Mw of from 50000 g/mol to 500 000 g/mol and has from 0.01 to 20 branches/1000 carbon atoms and a z-average molar mass Mz of less than 1 million g/mol, a process for its preparation, catalysts suitable for its preparation and also films in which this polyethylene is present.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: August 30, 2011
    Assignee: Basell Polyolefine GmbH
    Inventors: Jennifer Kipke, Shahram Mihan, Rainer Karer, Dieter Lilge
  • Publication number: 20110207637
    Abstract: This invention relates to an ethylene copolymer for lubricating oil, comprising: ethylene; at least one alpha-olefin having 3 or more carbon atoms; and at least one vicinally substituted olefin having 2 to 40 carbon atoms, wherein: the copolymer has a weight-average molecular weight (Mw) of about 50,000 to about 500,000; and an intensity ratio of S?? to S?? insertions, as determined by a 13C-NMR spectrum of less than 0.5.
    Type: Application
    Filed: December 29, 2010
    Publication date: August 25, 2011
    Inventors: Sudhin Datta, Smita Kacker, Mun F. Tse, Thomas T. Sun, Eric B. Sirota, Vera Minak-Bernero, Liehpao O. Farng