At Least Four Carbon Atoms Patents (Class 526/348.6)
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Publication number: 20120022223Abstract: 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: ApplicationFiled: January 12, 2010Publication date: January 26, 2012Applicant: Evonik Oxeno GmbHInventors: Michael Grass, Ted Pettijohn, Stefan Buchholz, Gerhard Ellermann, Pal Bentzrod, Tore Dreng, Jarmo Lindroos
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Patent number: 8101695Abstract: A propylene-based terpolymer comprising: a) from 10.0% by mol to 79.0% by mol of propylene derived units; b) from 89.5% by mol to 20.5% by mol of 1-butene derived units; and c) from 0.5% by mol to 15% by mol of derived units of alpha olefin of formula CH2?CHZ wherein Z is a C4-C20 alkyl radical.Type: GrantFiled: November 21, 2005Date of Patent: January 24, 2012Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Simona Guidotti
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Patent number: 8101674Abstract: A pharmaceutical/medical rubber compound contains the following components: (A) a composition obtainable by crosslinking (a) 100 parts by weight of an isobutylene polymer having terminal alkenyl groups with (d) a hydrosilyl-containing compound in the presence of (b) from 5 to 100 parts by weight of a polyolefin and (c) from 5 to 100 parts by weight of polybutene during melt kneading, and (B) an ultra-high molecular weight polyethylene powder. Compared with conventional thermoplastic elastomers, the pharmaceutical/medical rubber compound and its molded article are free from deformations and have sufficient permanent set resistance even under high temperature conditions, have excellent mechanical properties, low water absorption property, low reactivity and superb gas barrier properties, and can withstand high-temperature sterilization.Type: GrantFiled: June 9, 2008Date of Patent: January 24, 2012Assignee: Daikyo Seiko, Ltd.Inventors: Yasushi Kawauchi, Katsuhiko Kimura
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Patent number: 8101684Abstract: A material which is excellent in mechanical strength, solar cell sealing properties, transparency, etc., even in an uncrosslinked state and is used in producing a sheet for solar cell sealing. The thermoplastic resin composition for solar cell sealing comprises (A) 0-70 wt. % propylene polymer having a melting point of 100° C. or higher and (B) 30-100 wt. % propylene copolymer satisfying the following requirements (b). (b) The copolymer has an MFR (230° C., 2.16-kg load) in the range of 0.01-100 g/10 min and satisfies at least one of the following requirements (b-1) and (b-2): (b-1) the rr content is 60% or higher; and (b-2) the copolymer comprises 55-90 mol % structural units derived from propylene and 10-45 mol % structural units derived from a C2-20 ?-olefin (excluding propylene) and has an intrinsic viscosity [?] (dL/g) (measured in 135° C. decalin) satisfying a specific relationship with the MFR.Type: GrantFiled: July 27, 2007Date of Patent: January 24, 2012Assignee: Mitsui Chemicals, Inc.Inventor: Hiroshi Hoya
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Patent number: 8097681Abstract: A 1-butene/propylene copolymer composition having a content of propylene derived units from 1 to 4% by weight, wherein at least 50% of the crystalline polymer is present in the thermodynamically stable, trigonal Form I (detected by DSC analysis) after 100 hours of the first melting at room temperature comprising: b) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: i) isotactic pentads (mmmm) measured by 13C-NMR, higher than 80%; ii) melting point (Tm(II)) higher than 70° C.; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4.Type: GrantFiled: August 22, 2007Date of Patent: January 17, 2012Assignee: Basell Polyolefine GmbHInventors: Giampaolo Pellegatti, Daniele Bigiavi, Rita Martelli, Maria Silvia Tonti, Luigi Resconi, Simona Guidotti
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Patent number: 8097682Abstract: A 1-butene/propylene copolymer composition having a content of propylene derived units from 4 to 10% by weight, wherein at least 50% of the polymer is present in the thermodynamically stable, trigonal form I after 100 hours at room temperature, said composition comprising: a) from 5% by weight to 95% by weight of an atactic 1-butene propylene copolymer having the following features: i) distribution of molecular weight Mw/Mn equal to or lower than 4; ii) no enthalpy of fusion detectable at a differential scanning calorimeter (DSC); and iii) infrared crystallinity lower than 0.5%; b) from 5% by weight to 95% by weight of an isotactic 1-butene propylene copolymer having the following features: i) isotactic pentads (mmmm) measured by 13C-NMR, higher than 80%; ii) melting point (Tm(II)) higher than 70° C.; and iii) distribution of molecular weight Mw/Mn equal to or lower than 4.Type: GrantFiled: August 23, 2007Date of Patent: January 17, 2012Assignee: Basell Polyolefine GmbHInventors: Giampaolo Pellegatti, Daniele Bigiavi, Rita Martelli, Maria Silvia Tonti, Luigi Resconi, Simona Guidotti
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Publication number: 20120010354Abstract: 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: ApplicationFiled: January 12, 2010Publication date: January 12, 2012Applicant: Evonik Oxeno GmbHInventors: Michael Grass, Ted M. Pettijohn, Stefan Buchholz, Gerhard Ellermann, Tore Dreng, Arild Follestad, Jarmo Lindroos
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Patent number: 8092821Abstract: According to an aspect of the present invention, implantable or insertable medical devices are provided, which contain at least one polymeric region in contact with a metallic region. The polymeric region contains at least one block copolymer that contains at least one low Tg block and at least one high Tg block. The polymeric region contains at least one polymer that contains at least one adhesion promoting group selected from one or more of halo-silane, alkoxy-silane, epoxy, anhydride, phenoxy, hydroxyl, amino, sulfonate and carboxyl groups, which at least one polymer may correspond to the block copolymer, a supplemental polymer, or both.Type: GrantFiled: June 1, 2007Date of Patent: January 10, 2012Assignee: Boston Scientific Scimed, Inc.Inventor: Frederick H. Strickler
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Publication number: 20110313119Abstract: 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: ApplicationFiled: April 24, 2007Publication date: December 22, 2011Inventors: Wayde V Konze, Daniel D. VanderLende
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Publication number: 20110293867Abstract: Propylene copolymer (a) comprising at least 1-butene as a comonomer, (b) having a comonomer content in the range of 1.0 to 3.0 wt.-%, (c) having a xylene soluble fraction equal or below 2.5 wt.-%, and (d) being partially crystallized in the ?-modification.Type: ApplicationFiled: November 16, 2009Publication date: December 1, 2011Applicant: Borealis AGInventors: Klaus Bernreitner, Manfred Stadlbauer, Norbert Hafner, Wilfried Töltsch
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Patent number: 8067518Abstract: Ethylene alpha-olefin copolymers formed by contacting at least one supported metallocene catalyst, ethylene, and an alpha-olefin in a gas phase reactor are disclosed. In some embodiments, the polymer may have: a density of between 0.890 and 0.970 g/cc; a melt index of between 0.7 and 200 dg/min; a melt index ratio of less than 30; an ESCR value of greater than 1000 hours; and a 1% secant modulus of greater than 75,000 psi. In other embodiments, the polymer may have: a density of between 0.930 g/cc and 0.970 g/cc; a melt index of between 10 dg/min and 200 dg/min; a melt index ratio of between 10 and 25; a part weight of greater than 3 g and a part length of greater than 38 cm in a spiral flow test, and; a zero shear viscosity of less than 150 Pa·s. Processes to produce these polymers are also disclosed.Type: GrantFiled: June 7, 2007Date of Patent: November 29, 2011Assignee: Univation Technologies, LLCInventors: Christopher R. Davey, James M. Farley, Rainer Kolb, Mark P. Ossowski
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Patent number: 8067319Abstract: A fiber is obtainable from or comprises an ethylene/?-olefin interpolymer characterized by an elastic recovery, Re, in percent at 300 percent strain and 1 cycle and a density, d, in grams/cubic centimeter, wherein the elastic recovery and the density satisfy the following relationship: Re>1481?1629(d). Such interpolymer can also be characterized by other properties. The fibers made therefrom have a relatively high elastic recovery and a relatively low coefficient of friction. The fibers can be cross-linked, if desired. Woven or non-woven fabrics can be made from such fibers.Type: GrantFiled: July 19, 2010Date of Patent: November 29, 2011Assignee: Dow Global Technologies LLCInventors: Benjamin C. Poon, Yunwa W. Cheung, Shih-Yaw Lai, Ashish Sen, Hongyu Chen, Yuen-Yuen D. Chiu, Rajen M. Patel, Andy C. Chang, Antonios K. Doufas, Hong Peng
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Publication number: 20110288256Abstract: The present invention relates to a process to make alpha olefins comprising: dehydrating ethanol to recover an ethylene stream, introducing said ethylene stream into an oligomerization zone containing an oligomerization catalyst and into contact with said oligomerization catalyst, operating said oligomerization zone at conditions effective to produce an effluent consisting essentially of 1-butene, 1-hexene, optionally heavier alpha olefins and unconverted ethylene if any, introducing the above effluent into a fractionation zone to recover a stream consisting essentially of 1-butene, a stream consisting essentially of 1-hexene, optionally a stream consisting essentially of heavier alpha olefins and an optional ethylene stream. In an advantageous embodiment the 1-hexene or at least one heavier alpha olefins, if any, are isomerized to an internal olefin and subsequently transformed by metathesis with the aid of additional ethylene into different alpha-olefins with even or odd number of carbons.Type: ApplicationFiled: December 10, 2009Publication date: November 24, 2011Applicant: TOTAL PETROCHEMICALS RESEARCH FELUYInventor: Walter Vermeiren
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Publication number: 20110281195Abstract: A fuel cell adhesive comprises a polyolefin adhesive having a bonding strength sufficient to adhere two fuel cell stack components together. The bonding strength of the polyolefin adhesive is less than the cohesive strength of any of the fuel cell stack components such that two adhesively bonded fuel cell stack components can be easily separated and re-joined without causing any mechanical damages to the fuel cell stack components. The polyolefin adhesive may be prepared by polymerizing at least an ?-olefin monomer in the presence of a molecular weight controlling agent.Type: ApplicationFiled: May 12, 2010Publication date: November 17, 2011Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INCInventors: Timothy J. Fuller, Vindo Kumar
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Patent number: 8058379Abstract: 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: GrantFiled: July 7, 2008Date of Patent: November 15, 2011Assignee: Mitsui Chemicals, Inc.Inventors: Kazuaki Yasuda, Tooru Tanaka
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Publication number: 20110263807Abstract: A process for the polymerization of one or more olefins under solution polymerization conditions to produce a polymeric solution, said process comprising contacting the produced polymeric solution with one or more antioxidant compounds before or concurrently with subjecting the polymeric solution to a devolatilization step to separate the polymer from the unreacted monomers.Type: ApplicationFiled: November 11, 2009Publication date: October 27, 2011Applicant: BASELL POLIOLEFINE ITALIA S.R.L.Inventors: Stefano Spataro, Pier Luigi Di Federico, Giampaolo Pellegatti
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Patent number: 8044160Abstract: The present invention relates to a multimodal polyethylene composition wherein (i) the composition has an MFR2 of 0.1 to 100 g/10 min, (ii) the shear thinning index SHI(1,100) and the log MFR2 of the composition satisfy the following relation: SHI(1,100)??10.58 log MFR2 [g/10 min]/(g/10 min)+12.94, and (iii) the composition has an environmental stress crack resistance ESCR of 10 h or more. Furthermore, the present invention relates to a process for the production of said composition, an injection moulded article, in particular a cap or closure, comprising said composition and to the use of said composition for the production of an injection moulded article.Type: GrantFiled: November 2, 2005Date of Patent: October 25, 2011Assignee: Borealis Technology OyInventors: Katrin Nord-Varhaug, Svein Staal Eggen, Hans Joerg Fell
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Patent number: 8039569Abstract: Monomodal molding compositions based on polymers of ethylene, wherein the density of the molding compositions is in the range from 0.940 to 0.96 g/cm3, the Mi is in the range from 0.5 to 10.0 g/10 min. the polydispersity Mw/Mn is in the range from 3 to 20, the branches/1000 carbon atoms is in the range from 0.1 to 10 and the weight average molar mass Mw is in the range from 50 000 g/mol to 150 000 g/mol, and also injection-molded shaped bodies as well as screw closures comprising the molding compositions.Type: GrantFiled: April 15, 2006Date of Patent: October 18, 2011Assignee: Basell Polyolefine GmbHInventors: Jennifer Kipke, Shahram Mihan, Rainer Karer
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Patent number: 8039555Abstract: The invention provides a thermoplastic resin composition including a thermoplastic resin component (I) in an amount of 100 parts by mass, and a filler (II) in an amount of 1 to 900 parts by mass, wherein the thermoplastic resin component (I) contains a block copolymer (A) in an amount of 5 to 90 mass %, the block copolymer (A) being at least one species selected from among a block copolymer and a hydrogenated product thereof, the block copolymer having a polymer block (a1) formed mainly of an aromatic vinyl compound unit(s), and a polymer block (a2) formed mainly of a conjugated diene unit(s); a polyolefin resin (B) in an amount of 5 to 90 mass %; and a block copolymer (C) in an amount of 5 to 90 mass %, the block copolymer (C) having a polymer block formed from a repeating unit having a polar group.Type: GrantFiled: April 4, 2007Date of Patent: October 18, 2011Assignee: Kuraray Co., Ltd.Inventors: Hiromitsu Sasaki, Kenji Shachi, Daisuke Konishi
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Publication number: 20110251360Abstract: 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: ApplicationFiled: November 30, 2009Publication date: October 13, 2011Applicant: BASELL POLYOLEFINE GMBHInventors: Eleonora Ciaccia, Iakovos Vittorias, Shahram Mihan, Lenka Lukesova, Dieter Lilge, Maclovio Herrara Salinas, Gerhardus Meier, Gerd Mannebach
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Patent number: 8030421Abstract: A process for polymerizing 1-butene comprising the step of contacting under polymerization conditions 1-butene and optionally from 0 to 20% by mol of an alpha olefin with a catalyst system obtainable by contacting a bridged metallocene compound of formula (I) wherein R1 and R2 are an hydrocarbon radical A is a carbon atom, a germanium atom or a silicon atom; m is 1, 2; M is a metal of group 4 of the Periodic Table of the Elements; X, is hydrogen, a halogen atom, or a group R, OR, OSO2CF3, OCOR, SR, NR2 or PR2, wherein the substituents R are hydrocarbon radical; L is a moiety of formula (IIa) or (IIb) wherein T is an oxygen (O) or sulphur (S) atom or a CH2 group; and R3 and R4 are hydrogen atoms or hydrocarbon radicals; one or more alumoxanes or compounds able to form an alkylmetallocene cation; and optionally an organo aluminum compound.Type: GrantFiled: October 22, 2008Date of Patent: October 4, 2011Assignee: Basell Polyolefine GmbHInventor: Luigi Resconi
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Patent number: 8030424Abstract: Described is a cyclobutene polymer comprising: monomeric units of cyclobutene, said cyclobutene having at least one fused ring system substituted thereon, said polymer comprising not more than 10 mol percent ring-opened units of said cyclobutene; and said polymer having a molecular weight of at least 1,000; said polymer optionally copolymerized with a comonomer to form a copolymer therewith. Compositions thereof and methods of making the same are also described.Type: GrantFiled: August 16, 2007Date of Patent: October 4, 2011Assignee: North Carolina State UniversityInventors: Bruce M. Novak, Keitaro Seto
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Publication number: 20110230632Abstract: The present invention generally relates to a method for sequestering carbon dioxide. Biomass is converted into paraffinic hydrocarbons. The paraffinic hydrocarbons are steam cracked into olefins. The olefins are polymerized into non-biodegradable polyolefins.Type: ApplicationFiled: March 18, 2010Publication date: September 22, 2011Inventor: Ramin Abhari
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Publication number: 20110224394Abstract: 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: ApplicationFiled: October 8, 2010Publication date: September 15, 2011Applicant: Ineos Europe LimitedInventors: JR Llinas, JL Selo
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Publication number: 20110218308Abstract: 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: ApplicationFiled: November 10, 2009Publication date: September 8, 2011Inventors: Yoshinobu Nozue, Yasutoyo Kawashima, Naoko Ochi, Takuya Ogane
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Publication number: 20110217537Abstract: 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: ApplicationFiled: September 22, 2009Publication date: September 8, 2011Applicant: BASELL POLYOLEFINE GMBHInventors: Fabiana Fantinel, Gerd Mannebach, Shahram Mihan, Gerhardus Meier, Iakovos Vittorias
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Publication number: 20110217499Abstract: A polyethylene for IM having excellent processing properties in terms of spiral flow testing is devised.Type: ApplicationFiled: August 27, 2009Publication date: September 8, 2011Applicant: Basell Polyolefine GmbHInventors: Gerd Mannebach, Harald Schmitz, Shahram Mihan, Rainer Karer, Manfred Hecker, Guido Funk, Adrian Popa
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Patent number: 8008403Abstract: 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: GrantFiled: April 25, 2005Date of Patent: August 30, 2011Assignee: Basell Polyolefine GmbHInventors: Jennifer Kipke, Shahram Mihan, Rainer Karer, Dieter Lilge
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Patent number: 8008417Abstract: Disclosed herein is a polymer composition, its manufacture and use, said composition may comprise greater than about 90 mole % propylene monomer, and having a unique combination of properties, including one or more of the following: a heat of fusion of more than about 108 J/g, a melting point of 165° C. or higher, a Melt Flow Rate so low that it is essentially not measurable and a molecular weight of greater than about 1.5×106. Further disclosed herein are blends or mixtures of the present novel polymer composition and products, such as, for example, microporous film structures and the like comprising same.Type: GrantFiled: December 8, 2010Date of Patent: August 30, 2011Assignee: Toray Tonen Specialty Separator Godo KaishaInventors: Patrick Brant, Jeffrey L. Brinen, Zerong Lin, Koichi Kono, Kohtaro Kimishima, Hiroyuki Ozaki
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Publication number: 20110207637Abstract: 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: ApplicationFiled: December 29, 2010Publication date: August 25, 2011Inventors: Sudhin Datta, Smita Kacker, Mun F. Tse, Thomas T. Sun, Eric B. Sirota, Vera Minak-Bernero, Liehpao O. Farng
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Patent number: 8003743Abstract: A process for preparing 1-butene polymers comprising polymerizing 1-butene and optionally ethylene, propylene or higher alpha-olefin, in the presence of a catalyst system obtainable by contacting: a) metallocene compound of formula (I): wherein: M is a transition metal; p is an integer from 0 to 3; X, same or different, is a hydrogen atom, a halogen atom, or a hydrocarbon group; L is a divalent C1-C40 hydrocarbon radical; R1 is a C1-C40 hydrocarbon radical; T1, is a moiety of formula (IIa) or (IIb): wherein R2 and R3, are C1-C40 hydrocarbon radicals or they can form together a C3-C7-membered ring; R4 is C1-C40 hydrocarbon radicals; T2 and T3, are a moiety of formula (IIIa) or (IIIb): wherein R6 and R7, equal to or different from each other, are hydrogen atoms or C1-C40 hydrocarbon radicals; R5 is a hydrogen atom or a C1-C40 hydrocarbon radicals; with the proviso that if T1 is a moiety of formula (IIa) at least one between T2 and T3 is a moiety of formula (IIIb), and if T1 is a moiety of formulaType: GrantFiled: May 31, 2005Date of Patent: August 23, 2011Assignee: Basell Poliolefine Italia, S.R.L.Inventors: Luigi Resconi, Friederike Morhard
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Patent number: 7989543Abstract: An adhesive composition comprises: (i) at least one ethylene/?-olefin interpolymer, (ii) at least one tackifÊer; and (iii) optionally at least one additive, such as a plasticizer, wax and antioxidant. Preferably, the ethylene/?-olefin interpolymer has a Mw/Mn from about 1.7 to about 3.5, at least one melting point, Tm, in degrees Celsius, and a density, d, in grams/cubic centimeter, wherein the numerical values of Tm and d correspond to the relationship: Tm?858.91?1825.3(d)+1112.8(d)2. The composition has relatively higher SAFT temperature and can be used in hot melt adhesives pressure-sensitive adhesives, and thermoplastic marking paints.Type: GrantFiled: March 15, 2006Date of Patent: August 2, 2011Assignee: Dow Global Technologies LLCInventors: Teresa P. Karjala, Selim Yalvac, Charles F. Diehl, Yunwa W. Cheung, Cynthia L. Rickey
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Patent number: 7985817Abstract: Disclosed is a homogeneous catalyst system for producing an ethylene homopolymer or an ethylene copolymer with ?-olefin. Specifically, this invention pertains to a transition metal catalyst which has stability under high temperature solution polymerization at 120˜250° C., in which a cyclopentadiene derivative and an electron donating substituent, both of which are bonded to a Group IV transition metal acting as a central metal, are crosslinked through a silyl derivative substituted with a cyclohexyl, to a catalyst system including such a transition metal catalyst and an aluminoxane cocatalyst or a boron compound cocatalyst, and to a method of producing an ethylene homopolymer or an ethylene copolymer with ?-olefin, having high molecular weight, using the catalyst system under conditions of high-temperature solution polymerization.Type: GrantFiled: September 8, 2006Date of Patent: July 26, 2011Assignee: SK Energy Co., Ltd.Inventors: Tae Woo Woo, Myung Ahn Ok, Jong Sok Hahn, Sang Ook Kang, Jae Ho Jung
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Patent number: 7981993Abstract: A 1-butene ethylene copolymer having an ethylene derived units content ranging from 15.10% by molto 18.00% by mol having the following properties: a) distribution of molecular weight lower than 3; preferably b) hardness shore A (measured according to ISO 868) lower than 65; c) tension set lower than 30% at 100% of deformation (ISO 2285) d) no melting pointdetectable at the DSC; e) Melting enthalpy measured after 10 days of aging at room temperature comprised between 4 and 15 J/g.Type: GrantFiled: June 9, 2008Date of Patent: July 19, 2011Assignee: Basell Polyolefine GmbHInventors: Giampaolo Pellegatti, Stefano Spataro, Roberta Marchini, Simona Guidotti, Simona Esposito
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Patent number: 7981992Abstract: Copolymers, especially multi-block copolymer containing therein two or more segments or blocks, are prepared by polymerizing propylene, 4-methyl-1-pentene, or another C4-8 ?-olefin in the presence of a composition comprising the admixture or reaction product resulting from combining: (A) a first metal complex olefin polymerization catalyst, (B) a second metal complex olefin polymerization catalyst capable of preparing polymers having increased incidence of regio-irregular branching compared to the polymer prepared by catalyst (A) under equivalent polymerization conditions, and (C) a chain shuttling agent.Type: GrantFiled: January 30, 2006Date of Patent: July 19, 2011Assignee: Dow Global Technologies LLCInventors: Daniel J. Arriola, Edmund M. Carnahan, David D. Devore, Phillip D. Hustad, Roger L. Kuhlman, Timothy T. Wenzel
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Patent number: 7977444Abstract: A process for preparing a polymer containing derived units of one or more alpha olefins of formula CH2?CHW wherein W is a C3-C10 hydrocarbon radical and optionally from 0 to 81% by mol of derived units of propylene or 1-butene, comprising contacting under polymerization conditions one or more alpha olefins of formula CH2?CHW and optionally propylene or 1-butene in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I) wherein M, X, L, T, R1, R2, R7 and R8 are described in the text; and (b) an alumoxane or a compound capable of forming an alkyl metallocene cation.Type: GrantFiled: March 8, 2005Date of Patent: July 12, 2011Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Eleonora Ciaccia, Friederike Morhard, Giampaolo Pellegatti
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Publication number: 20110165416Abstract: [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: ApplicationFiled: January 10, 2011Publication date: July 7, 2011Inventors: Kuniaki KAWABE, Masayoshi Sutou, Toshiyuki Itou, Mai Kurihara, Akinori Etoh, Shinichirou Asao, Kenji Sugimura, Hiroshi Hoya, Koji Matsunaga, Yoji Hayakawa, Kunihiko Mizumoto
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Publication number: 20110165357Abstract: The present invention deals with polymer compositions suitable for making pipes. The compositions comprise a multimodal copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms wherein the multimodal ethylene copolymer has a density of from 937 to 950 kg/m3, a melt index MFR5 of from 0.3 to 3.0 g/10 min, a melt index MFR2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI2.7/210 of from 2 to 30.Type: ApplicationFiled: May 25, 2009Publication date: July 7, 2011Applicant: BOREALIS AGInventors: Mats Backman, Carl-Gustaf Ek, Anneli Pakkanen, Magnus Palmlof, Tarja-Tuulikki Turpeinen, John Severn
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Publication number: 20110160420Abstract: The present invention provides a process for the production of a degassed polymer powder, which process comprises a) feeding i) a principal monomer, and ii) one or more comonomers fed in an amount of at least 5000 ppmw relative to the principal monomer feed rate, and iii) optionally one or more added alkanes having 2 to 10 carbon atoms, fed in an amount of at least 1000 ppmw relative to the principal monomer feed rate; into a polymerisation reactor wherein the monomer and comonomers react to form a polymer comprising residual hydrocarbons comprising one or more hydrocarbons having 3 to 10 carbon atoms, and b) passing the polymer to a degassing step wherein it is contacted with a purge gas to remove at least some of the residual hydrocarbons, characterised in that: 1) the G/P ratio in the degassing step is higher than a minimum G/P ratio, G being the purge gas mass flow rate in the degassing step and P being the polymer throughput of the degassing step, and 2) the purge gas has a concentration of critical hydrType: ApplicationFiled: September 21, 2009Publication date: June 30, 2011Inventors: Jean-Louis Chamayou, Daniel Marissal
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Patent number: 7968665Abstract: A 1-butene polymer satisfying the following (1), (2) and either (3) or (3?): a process for producing the polymer; a resin modifier comprising the polymer; and a hot-melt adhesive containing the polymer. (1) The intrinsic viscosity [?] as measured in tetralin solvent at 135° C. is 0.01 to 0.5 dL/g. (2) The polymer is a crystalline resin having a melting point (Tm-D) of 0 to 100° C., the melting point being defined as the top of the peak observed on the highest-temperature side in a melting endothermic curve obtained with a differential scanning calorimeter (DSC) in a test in which a sample is held in a nitrogen atmosphere at ?10° C. for 5 min and then heated at a rate of 10° C./min. (3) The stereoregularity index {(mmmm)/(mmrr+rmmr)} is 30 or lower. (3?) The mesopentad content (mmmm) determined from a nuclear magnetic resonance (NMR) spectrum is 68 to 73%.Type: GrantFiled: September 21, 2007Date of Patent: June 28, 2011Assignee: Idemitsu Kosan Co., Ltd.Inventors: Yutaka Minami, Masami Kanamaru, Toyozo Fujioka, Tomoaki Takebe, Masao Inoue
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Patent number: 7964679Abstract: A process for preparing 1-butene polymers, comprising polymerizing 1-butene or copolymerizing 1-butene with ethylene, propylene or an alpha-olefin of formula CH2?CHT wherein T is a C3-C10 alkyl group, in the presence of a catalyst system obtainable by contacting: A) a metallocene compound belonging to formula (I): wherein M is zirconium titanium or hafnium; X, equal to or different from each other, is a hydrogen atom, a halogen atom, a hydrocarbon radical, optionally containing heteroatoms; R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13 are hydrogen atoms, or C1-C4O hydrocarbon radicals optionally containing heteroatoms; R1, R2 and R3, are linear or branched, C1-C20-alkyl radicals, optionally containing heteroatoms: B) a lumoxane or a compound capable of forming an alkyl metallocene cation; and optionally C) organo aluminum compound.Type: GrantFiled: April 12, 2006Date of Patent: June 21, 2011Assignee: Basell Poliolefine Italia s.r.l.Inventors: Luigi Resconi, Simona Guidotti, Iolanda Santoriello
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Patent number: 7947793Abstract: Embodiments of the invention provide a class of ethylene/?-olefin block interpolymers. The ethylene/?-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 ethylene/?-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 ethylene/?-olefin interpolymer has a molecular weight distribution, Mw/Mn, greater than about 1.4.Type: GrantFiled: January 30, 2009Date of Patent: May 24, 2011Assignee: Dow Global Technologies LLCInventors: Gary R. Marchand, Yunwa W. Cheung, Benjamin C. Poon, Jeffrey D. Weinhold, Kim L. Walton, Pankaj Gupta, Colin Lipishan, Phillip D. Hustad, Roger L. Kuhlman, Edmund M. Carnahan, Eddy I. Garcia-Meitin, Patricia L. Roberts
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Patent number: 7947348Abstract: Polypropylene compositions, particularly suited for preparation of stretched/oriented articles, especially for injection stretch blow moulded bottles, comprising: A) one or more propylene homopolymers or propylene copolymers or their mixtures; B) from 500 to about 1500 ppm by weight of talc in form of particles having average particle diameter of equal to or less than 1.5 ?m. Said compositions display higher crystallization temperature with respect to the same polyolefin (A) without addition of (B), while keeping good levels of transparency, particularly when (A) is or comprises a random polymer.Type: GrantFiled: December 15, 2006Date of Patent: May 24, 2011Assignee: Basell Poliolefine Italia, s.r.l.Inventors: Fiorella Pradella, Pierre-Alain Weiss, Claudio Cavalieri, Gabriella Sartori
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Patent number: 7943716Abstract: A process for preparing a polymer containing derived units of one or more alpha olefins of formula CH2?CHW wherein W is a C3-C10 hydrocarbon radical and optionally from 0 to 81% by mol of derived units of propylene or 1-butene, comprising contacting under polymerization conditions one or more alpha olefins of formula CH2?CHW and optionally propylene or 1-butene in the presence of a catalyst system obtainable by contacting: a) a metallocene compound of formula (I) wherein M, X, L, T1, T2, T3 and R1 are described in the text; and (b) an alumoxane or a compound capable of forming an alkyl metallocene cation.Type: GrantFiled: March 8, 2005Date of Patent: May 17, 2011Assignee: Basell Polyolefine GmbHInventors: Luigi Resconi, Eleonora Ciaccia, Friederike Morhard, Giampaolo Pellegatti
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Patent number: 7943717Abstract: The present invention relates to butene-1 copolymers containing up to 40% by mol of ethylene and/or propylene derived characterized by the following properties: d) Product of the reactivity ratios r1·r2?2; e) Content of butene-1 units in form of isotactic pentads (mmmm)>98%; and f) absence of 4,1 insertions of butene units.Type: GrantFiled: November 3, 2003Date of Patent: May 17, 2011Assignee: Basell Poliolefine Italia, S.p.A.Inventors: Giampiero Morini, Fabrizio Piemontesi, Gianni Vitale, Daniele Bigiavi, Anteo Pelliconi, Enea Garagnani, Pietro Baita
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Publication number: 20110108121Abstract: The present invention deals with polymer compositions suitable for making pipes. The compositions comprise a multimodal copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms wherein the multimodal ethylene copolymer has a density of from 924 to 935 kg/m3, a melt index MFR5 of from 0.5 to 6.0 g/10 min, a melt index MFR2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI27/210 of from 2 to 50.Type: ApplicationFiled: May 25, 2009Publication date: May 12, 2011Applicant: BOREALIS AGInventors: Mats Backman, Carl-Gustaf Ek, Anneli Pakkanen, Magnus Palmlöf
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Publication number: 20110098422Abstract: Polyethylene compositions having improved properties are provided. In one aspect, a polyethylene composition having a long chain branching index (g?avg) of 0.5 to 0.9; a Melt Flow Rate (MFR) of greater than (49.011×MI(?0.4304)), where MI is Melt Index; and a weight average molecular weight to number average molecular weight (Mw/Mn) of less than or equal to 4.6 is provided.Type: ApplicationFiled: October 9, 2008Publication date: April 28, 2011Applicant: Univation Technologies, LLCInventors: Dongming Li, Mark G Goode, Rainer Kolb, Chi-I Kuo, Tae Hoon Kwalk, Ching-Tai Lue, Francis C. Rix, Daniel P. Zilker, JR.
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Publication number: 20110091674Abstract: The present invention deals with polymer compositions suitable for making pipes. The compositions comprise a multimodal copolymer of ethylene and one or more alpha-olefins having from 4 to 10 carbon atoms wherein the multimodal ethylene copolymer has a density of from 924 to 960 kg/m3, a melt index MFR5 of from 0.5 to 6.0 g/10 min, a melt index MFR2 of from 0.1 to 2.0 g/10 min and a shear thinning index SHI2.7/210 of from 2 to 50. The compositions further have a level of volatile compounds of at most 100 ppm by weight and/or a homogeneity rating of at most 3.Type: ApplicationFiled: May 25, 2009Publication date: April 21, 2011Applicant: BOREALIS AGInventors: Mats Backman, Carl-Gustaf Ek, Anneli Pakkanen, Magnus Palmlof
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Patent number: 7928051Abstract: Polyethylene which comprises ethylene homopolymers and/or copolymers of ethylene with 1-alkenes and has a molar mass distribution width Mw/Mn of from 3 to 30, a density of from 0.945 to 0.965 g/cm3, a weight average molar mass Mw of from 50 000 g/mol to 200 000 g/mol, a HLMI of from 10 to 300 g/10 min and has from 0.1 to 15 branches/1000 carbon atoms, wherein the 1 to 15% by weight of the polyethylene having the highest molar masses have a degree of branching of more than 1 branch of side chains larger than CH3/1000 carbon atoms, a process for its preparation, catalysts suitable for its preparation and also injection moldings in which this polyethylene is present.Type: GrantFiled: April 25, 2005Date of Patent: April 19, 2011Assignee: Basell Polyolefine GmbHInventors: Jennifer Kipke, Shahram Mihan, Rainer Karer, Dieter Lilge
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Publication number: 20110086993Abstract: Articles made of and/or including ultrahigh molecular weight polyethylene (UMWPE) having increased strength and/or wear resistance, such as high yield strength, high tensile strength, high load strength, and/or high impact strength. Some embodiments of articles made of and/or including UHMWPE having increased strength and/or wear resistance, such as that listed above, include UHMWPE having co-monomers.Type: ApplicationFiled: December 20, 2010Publication date: April 14, 2011Applicant: SMITH & NEPHEW ORTHOPAEDICS AGInventors: Paul Smith, Jeroen Visjager, Theo Tervoort