Boron Compound Contains Boron Bonded To Hydrogen Or To Carbon Atom Patents (Class 526/134)
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Patent number: 8623974Abstract: This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.Type: GrantFiled: March 5, 2012Date of Patent: January 7, 2014Assignee: ExxonMobil Chemical Patents Inc.Inventors: Peijun Jiang, Patrick Brant
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Patent number: 8618229Abstract: The present invention discloses catalyst compositions employing transition metal complexes with a thiolate ligand. Methods for making these transition metal complexes and for using such compounds in catalyst compositions for the polymerization of olefins also are provided.Type: GrantFiled: March 8, 2011Date of Patent: December 31, 2013Assignee: Chevron Phillips Chemical Company LPInventor: Mark L. Hlavinka
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Publication number: 20130317187Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.Type: ApplicationFiled: July 30, 2013Publication date: November 28, 2013Applicant: LG CHEM, LTD.Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
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Patent number: 8580902Abstract: Provided are catalyst systems, processes for polymerizing one or more olefins, polymers resulting therefrom, and articles prepared from such polymers. The processes comprise contacting under polymerization conditions one or more olefin monomers, preferably propylene, with a catalyst system comprising a transition metal compound and an activator of the formula (1) or (2) as described herein. The polymer compositions described herein exhibit advantageously narrow composition distributions and high melting points in comparison to conventional polymers having the same comonomer content. The polymers described herein exhibit improved properties, e.g., pellet stability, impact properties, heat seal properties, and structural integrity in film and fabricated parts applications.Type: GrantFiled: August 14, 2009Date of Patent: November 12, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Peijun Jiang, Rainer Kolb
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Publication number: 20130274407Abstract: The present invention relates to a novel catalytic system for polymerization, and more particularly for preparing conjugated diene polymers bearing a polar function at the chain end. This catalytic system is based on a metal salt of a rare-earth metal and, as alkylating agent, an organometallic compound based on a metal belonging to the 2nd column or the 13th column of the Periodic Table, capable of transferring a polar function to the diene elastomer during the conjugated diene polymerization step. The novel catalytic system makes it possible to reduce the steps for synthesizing a chain-end functionalized elastomer, while ensuring optimal functionalization, advantageously close or equal to 100%.Type: ApplicationFiled: December 10, 2012Publication date: October 17, 2013Inventors: Guillaume CORTIAL, Pascal Le Floch, Francois Nief, Julien Thuilliez
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Patent number: 8536081Abstract: Supported catalyst system for the polymerization of olefins, having at least two different monocyclopentadienyl transition metal compounds, one or more activators including an ionic compound having (i) a cation and (ii) an anion having up to 100 non-hydrogen atoms and the anion containing at least one substituent comprising a moiety having an active hydrogen, and one or more support materials. The supported “mixed or dual site” catalyst systems having different monocyclopentadienyl catalysts when activated by specific ionic activators lead to catalyst systems showing an improved balance of properties which may be used to prepare LLDPE polymers having broad melt flow ratios.Type: GrantFiled: November 10, 2005Date of Patent: September 17, 2013Assignee: Ineos Europe LimitedInventors: Grant Berent Jacobsen, Dusan Jeremic, Sergio Mastroianni, Ian Douglas McKay
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Patent number: 8507621Abstract: 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: GrantFiled: October 30, 2012Date of Patent: August 13, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Kumundini C. Jayaratne, Michael D. Jensen, Qing Yang
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Publication number: 20130203949Abstract: The present invention relates to a novel ligand derived from a tetrahydroquinoline derivative, and a transition metal compound prepared using the ligand, where an amido ligand is linked to an ortho-phenylene ligand to form a condensed ring and a 5-membered cyclic pi-ligand linked to the ortho-phenylene ligand is fused with a heterocyclic thiophene ligand. Compared with the catalysts not fused with a heterocyclic thiophene ligand, the transition metal compound of the present invention as activated with a co-catalyst has higher catalytic activity in olefin polymerization and provides a polymer with higher molecular weight.Type: ApplicationFiled: April 12, 2011Publication date: August 8, 2013Applicant: OTTE CHEMICAL CORPORATIONInventors: Bun-Yeoul Lee, Ji-Hae Park, Seung-Hyun Do
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Patent number: 8501654Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.Type: GrantFiled: June 5, 2012Date of Patent: August 6, 2013Assignee: Chevron Philips Chemical Company LPInventors: Rex E. Murray, William B. Beaulieu, Qing Yang, Errun Ding, Gary L. Glass, Alan L. Solenberger, Steven J. Secora
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Patent number: 8497331Abstract: The present invention relates to the field of single site catalyst systems based on pyrrol-iminophenol, pyrrol-iminoalcohol or pyrrol-iminoamine complexes and suitable for oligomerising or homo- or co-polymerising ethylene and alpha-olefins.Type: GrantFiled: November 9, 2007Date of Patent: July 30, 2013Assignee: Total Petrochemicals Research FeluyInventors: Caroline Hillairet, Guillaume Michaud, Sabine Sirol
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Patent number: 8455597Abstract: This invention relates to a homogenous process for making a vinyl terminated propylene polymer, wherein the process comprises: contacting, propylene, under polymerization conditions, with a catalyst system comprising an activator and at least one metallocene compound, where the metallocene compound is represented by the formula: where: M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halides, dienes, amines, phosphines, ethers, and a combination thereof, (two X's may form a part of a fused ring or a ring system); each R1 is, independently, a C1 to C10 alkyl group; each R2 is, independently, a C1 to C10 alkyl group; each R3 is, independently, hydrogen; each R4, R5, and R6, is, independently, hydrogen or a substituted or unsubstituted hydrocarbyl group, a heteroatom or heteroatom containing group; T is a bridging group; each R7 is, independently, hydrogen, halogType: GrantFiled: March 25, 2011Date of Patent: June 4, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Patrick Brant, Carlos U. De Gracia, Jacqueline A. Lovell
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Patent number: 8450436Abstract: The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.Type: GrantFiled: November 20, 2012Date of Patent: May 28, 2013Assignee: Chevron Phillips Chemical Company LPInventors: Albert P. Masino, Rex E. Murray, Qing Yang, Steve J. Secora, Kumudini C. Jayaratne, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger, Ted H. Cymbaluk
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Publication number: 20130123444Abstract: The present invention generally relates to a new method of polymerizing ethylene. In one embodiment, the present invention relates to compounds utilized in the polymerization of ethylene and to a synthesis/polymerization method that uses same. In another embodiment branched polyethylene is synthesized from an ethylene monomer using, in this embodiment, at least one nickel iminophosphonamide (PN2) complex. In still another embodiment, the reaction of (phenyl) (triphenylphosphine) (diphenyl-bis (trimethylsilylimino) phosphorato)-nickel, with Rh(acac) (C2H4)2 and ethylene yield a branched polyethylene. In an alternative of this embodiment, the reaction of (phenyl) (triphenylphosphine) (methyl-cis(trimethylsilyl)amino-bis(trimethylsilylimino) phosphorato)-nickel and ethylene, with or without Ni(COD)2, yields a branched polyethylene.Type: ApplicationFiled: November 2, 2012Publication date: May 16, 2013Applicant: THE UNIVERSITY OF AKRONInventor: The University of Akron
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Patent number: 8436113Abstract: There is provided a method for producing copolymer that is composed of ethylene and alpha-olefin by a solution polymerization, and more specifically, a method for producing copolymer that is composed of ethylene and aromatic monomer as main components by using a transition metal catalyst including a cyclopentadiene derivative, and one or more anionic ligand having aryloxy group in which an aryl derivative is substituted at an ortho-positionType: GrantFiled: December 14, 2010Date of Patent: May 7, 2013Assignees: SK Innovations Co., Ltd., SK Global Chemical Co., Ltd.Inventors: Hwan Kyu Jung, Young Wook Kim, Byoung Tak Yim, Ho Seong Lee, Myung Ahn Ok, Jong Sok Hahn, Dong Cheol Shin
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Patent number: 8431660Abstract: The present invention provides a non-metallocene transition metal compound that is easily produced, includes a tetrazol group having the high polymerization activity and high temperature stability in the polymerization of olefins, and a catalytic composition that includes the transition metal compound and a cocatalyst. In addition, the present invention provides a method for efficiently producing an olefin homopolymer or copolymer by using the catalytic composition.Type: GrantFiled: December 5, 2008Date of Patent: April 30, 2013Assignee: LG Chem, Ltd.Inventors: Heon-Yong Kwon, Nicola Maggiarosa, Ki-Soo Lee, Min-Seok Cho, Jong-Sang Park, Joon-Hee Cho, Yong-Ho Lee, Byung-Ryul Lee, Seon-Kyoung Kim, Dae-Sik Hong
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Patent number: 8431662Abstract: 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: GrantFiled: August 20, 2012Date of Patent: April 30, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Patrick Brant, Andrew G. Narvaez, Jr., Donna J. Crowther
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Patent number: 8426529Abstract: Disclosed is a selected type of copolymer composition comprising copolymers having units derived from ethylene and dicyclopentadiene (DCPD) co-monomers. Such copolymer compositions: a) have a DCPD-derived comonomer unit content of from about 25 mole % to about 45 mole %; b) have a Weight Average Molecular Weight, Mw, of greater than about 170,000; c) comprise amorphous material and have glass transition temperatures, Tg, of from about 8° C. to about 129° C., which also fit the equation Tg (in ° C.)?[(mole % DCPD×3.142)?4.67]; and d) comprise no significant amount of crystalline polyethylene homopolymer or crystallizable polyethylene segments within the ethylene-dicyclopentadiene copolymers. Such copolymers can be readily derivatized by hydrogenation and/or epoxidation to provide polymeric materials suitable for use as engineering thermoplastics.Type: GrantFiled: May 10, 2007Date of Patent: April 23, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Lisa Saunders Baugh, Abhimanyu Onkar Patil, Christian Peter Mehnert, Kevin R. Squire, Kenneth A. Cook, Caiguo Gong, Enock Berluche, Karla Schall Colle, Alan J. Oshinski, Stephen Zushma, Beverly J. Poole
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Publication number: 20130096269Abstract: The present invention relates to an ethylene-based terpolymer having high elasticity and a preparation method thereof, and more particularly, to a highly elastic, ethylene-based terpolymer, which comprises a specific molar ratio of a ethylene unit, a C6-12 ?-olefin unit and at least one functional unit selected from the group consisting of divinylbenzene and para-methylstyrene and to a method of preparing the highly elastic, ethylene-based terpolymer using a metallocene catalyst.Type: ApplicationFiled: October 5, 2012Publication date: April 18, 2013Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGYInventor: Korea Institute of Industrial Technology
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Patent number: 8420755Abstract: The present invention relates to a novel metallocene compound, a catalyst composition including the compound and an olefin polymer prepared using the same. The metallocene compound and the catalyst composition can be used for preparing the olefin polymer with high copolymerization degree and high molecular weight. Particularly, the block copolymer with high heat resistance can be prepared by using the metallocene compound, and the olefin polymer with high melting point (Tm) can be obtained, even if co-monomer is used at an increased amount in preparation of olefin polymer.Type: GrantFiled: August 17, 2010Date of Patent: April 16, 2013Assignee: LG Chem, Ltd.Inventors: Young-Chul Won, Sung-Ho Chun, Dai-Seung Choi, Dong-Woo Yoo, Bun-Yeoul Lee
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Publication number: 20130085232Abstract: This invention relates to a process to alter comonomer distribution in a copolymer (as compared to a copolymer made absent the Lewis base modifier) comprising contacting ethylene and one or more C3 to C40 comonomers; with a catalyst system comprising: 1) a Lewis base modifier; 2) an activator; and 3) a bridged bisindenyl group 4 transition metal metallocene catalyst compound having a hydrogen atom at least one 2 position.Type: ApplicationFiled: September 20, 2012Publication date: April 4, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventor: ExxonMobil Chemical Patents Inc.
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Publication number: 20130085246Abstract: The present invention relates to an olefin-based polymer which exhibits superior processability and superior adhesive properties and therefore is desirably applicable to a hot-melt adhesive (HMA) or the like, and a preparation method thereof. The olefin-based polymer has a molecular weight distribution (Mw/Mn, PDI) of 2˜3, and a density of 0.85 to 0.88 g/cm3, and satisfies the relation of Tc?Tm>0, wherein Tc (° C.) is a crystallization temperature and Tm (° C.) is a melting point.Type: ApplicationFiled: July 1, 2011Publication date: April 4, 2013Applicant: LG Chem LtdInventors: Don-Ho Kum, Eun-Jung Lee, Jong-Joo Ha, Choong-Hoon Lee
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Patent number: 8394737Abstract: The present invention discloses a method for preparing an activating support and its use to activate metallocene or post-metallocene catalyst component for use in the oligomerization and polymerization of ethylene and alpha-olefins.Type: GrantFiled: July 16, 2008Date of Patent: March 12, 2013Assignees: Total Petrochemicals Research Feluy Seneffe, Centre National de la Recherche ScientifiqueInventors: Abdelkrim El Kadib, Karine Molvinger, Daniel Brunel, Floran Prades, Sabine Sirol
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Publication number: 20130035460Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer which comprises: (A) polymerizing ethylene, and an ?-olefin comonomer selected from propylene and/or 1-butene, and mixtures thereof, under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 20%; and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min and an I21/I2 of from 30 to 400.Type: ApplicationFiled: August 7, 2012Publication date: February 7, 2013Inventors: Narayanaswami R. DHARMARAJAN, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
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Publication number: 20130023633Abstract: This invention relates to higher olefin vinyl terminated polymers having an Mn of at least 200 g/mol (measured by 1H NMR) including of one or more C4 to C40 higher olefin derived units, where the higher olefin vinyl terminated polymer comprises substantially no propylene derived units; and wherein the higher olefin polymer has at least 5% allyl chain ends and processes for the production thereof. These vinyl terminated higher olefin polymers may optionally include ethylene derived units.Type: ApplicationFiled: September 27, 2012Publication date: January 24, 2013Applicant: ExxonMobil Chemical Patents Inc.Inventor: ExxonMobil Chemical Patents Inc.
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Patent number: 8354484Abstract: 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: GrantFiled: April 24, 2007Date of Patent: January 15, 2013Assignee: Dow Global Technologies, LLCInventors: Wayde V. Konze, Daniel D. VanderLende
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Patent number: 8344081Abstract: The present invention relates to a transition metal complex useful as a transition metal catalyst in the preparation of an ethylene homopolymer or a copolymer of ethylene and an ?-olefin, a catalyst composition comprising the same and a process of preparing an ethylene homopolymer or a copolymer of ethylene and an ?-olefin using the same. More particularly, it relates to a transition metal complex having a cyclopentadiene derivative and at least one phenyl oxide ligand substituted at the 2-position of phenyl with, for example, a silyl group having a C1-C30 hydrocarbon group or a C1-C20 hydrocarbon group, around a group IV transition metal, with no crosslinkage between the ligands, a catalyst composition comprising the transition metal complex and a cocatalyst selected from the group consisting of an aluminoxane and a boron compound, and a process for preparing an ethylene homopolymer or a copolymer of ethylene and an ?-olefin using the same.Type: GrantFiled: October 30, 2008Date of Patent: January 1, 2013Assignee: SK Innovation Co., Ltd.Inventors: Jong-Sok Hahn, Myung-Ahn Ok, Dong-Cheol Shin, Ho-Seong Lee, Sang-Ook Kang, Tae-Jin Kim
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Patent number: 8338324Abstract: The present invention relates to the covalent anchorage of non-coordinating anions on mineral supports to prepare activating supports for the polymerisation of ethylene and alpha-olefins and wherein the activating species is provided by a phosphonium-borate or phosphonium alane pair. The invention also discloses the concomitant covalent anchorage of zwitterionic systems containing both the non-coordinating anion and the counter cation parts of the activating supports.Type: GrantFiled: December 11, 2008Date of Patent: December 25, 2012Assignees: Total Petrochemicals Research Feluy, Centre National de la Recherche ScientifiqueInventors: Abdelkrim El Kadib, Karine Molvinger, Daniel Brunel, Floran Prades, Sabine Sirol
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Patent number: 8329834Abstract: The present invention provides dual catalyst systems and polymerization processes employing these dual catalyst systems. The disclosed polymerization processes can produce olefin polymers at higher production rates, and these olefin polymers may have a higher molecular weight and/or a lower melt index.Type: GrantFiled: June 28, 2010Date of Patent: December 11, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Albert P. Masino, Rex E. Murray, Qing Yang, Steve J. Secora, Kumudini C. Jayaratne, William B. Beaulieu, Errun Ding, Gary L. Glass, Alan L. Solenberger, Ted H. Cymbaluk
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Patent number: 8318875Abstract: This invention relates to processes for producing an isotactic propylene homopolymer having more than 15 and less than 100 regio defects (sum of 2,1-erythro and 2,1-threo insertions and 3,1-isomerizations) per 10,000 propylene units; a weight-averaged molecular weight of 35000 g/mol or more; a peak melting temperature of greater than 149° C.; an mmmm pentad fraction of 0.85 or more; a heat of fusion of 80 J/g or more; and a peak melting temperature minus peak crystallization temperature (Tmp?Tcp) of less than or equal to (0.907 times Tmp) minus 99.64 (Tmp?Tcp<(0.907×Tmp)?99.64), as measured in ° C. on the homopolymer having 0 wt % nucleating agent.Type: GrantFiled: November 4, 2008Date of Patent: November 27, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: Aspy K. Mehta, Manika Varma-Nair, Gabor Kiss, Robert P. Reynolds, John W. Chu, Steven P. Rucker
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Patent number: 8318998Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.Type: GrantFiled: March 25, 2011Date of Patent: November 27, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: Donna J. Crowther, Renuka N. Ganesh, Andrew G. Narvaez, Jr., Patrick Brant
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Publication number: 20120245299Abstract: This invention relates to a process for polymerization, comprising (i) contacting, at a temperature greater than 35° C., one or more monomers comprising ethylene and/or propylene, with a catalyst system comprising a metallocene catalyst compound and an activator, (ii) converting at least 50 mol % of the monomer to polyolefin; and (iii) obtaining a branched polyolefin having greater than 50% allyl chain ends, relative to total unsaturated chain ends. The invention also relates to the branched polyolefins and functionalized branched polyolefins.Type: ApplicationFiled: March 5, 2012Publication date: September 27, 2012Inventors: Peijun Jiang, Patrick Brant
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Publication number: 20120245313Abstract: This invention relates to a transition metal catalyst compound represented by the structure: wherein M is hafnium or zirconium; each X is, independently, selected from the group consisting of hydrocarbyl radicals having from 1 to 20 carbon atoms, hydrides, amides, alkoxides, sulfides, phosphides, halogens, dienes, amines, phosphines, ethers, or a combination thereof; each R1 and R3 are, independently, a C1 to C8 alkyl group; and each R2, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, and R14 are, independently, hydrogen, or a substituted or unsubstituted hydrocarbyl group having from 1 to 8 carbon atoms, provided however that at least three of the R10-R14 groups are not hydrogen, compositions thereof and methods of use thereof to prepare polymers.Type: ApplicationFiled: March 25, 2011Publication date: September 27, 2012Inventors: Donna J. Crowther, Renuka N. Ganesh, Andrew G. Narvaez, JR., Patrick Brant
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Patent number: 8268949Abstract: Borohydride metallocene complex of lanthanide, preparation process, catalytic system incorporating it, copolymerization of olefins employing catalytic system and ethylene/butadiene copolymer, the butadiene units comprise 1,2-cyclohexane or 1,2- and 1,4-cyclohexane links. The complex corresponds to of formulae A and/or B: where, in A two ligands Cp1 and Cp2, each of a fluorenyl group, are connected to the lanthanide Ln, where, in B, a ligand molecule, composed of two fluorenyl groups Cp1 and Cp2 are connected via bridge P of formula MR1R2, is an element from group IVa, R1 and R2, which are identical or different, represent an alkyl group comprising from 1 to 20 carbon atoms, connected to lanthanide Ln, L is alkali metal, N is molecule of a complexing solvent, x is integral or non-integral number ?0 and p is integer ?1.Type: GrantFiled: November 7, 2011Date of Patent: September 18, 2012Assignees: Michelin Recherche et Technique S.A., Total Petrochemicals France, Centre National de la Recherche Scientifique, Ecole Superieure de Chimie-Physique-Electronique de LyonInventors: Julien Thuilliez, Christophe Boisson, Roger Spitz
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Patent number: 8263722Abstract: The invention relates to a continuous polymerization process for preparing a random ethylene interpolymer with propylene and/or 1-butene which comprises: (A) polymerizing ethylene, and as an ?-olefin comonomer propylene and/or 1-butene under continuous random polymerization conditions in the presence of single site catalyst system employing an ionic activator having cyclic ligands shielding a central charge bearing atom, at a temperature of 140° C. to 250° C. at a conversion of ethylene of 80 to 99% and a comonomer conversion of from at least 30% and (B) devolatilizing the polymer to provide an ethylene copolymer having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.01 to 100 g/10 min, preferably from 0.1 to 20, and an I21/I2 of from 30 to 400. The invention also relates to polymers made by such processes containing as ?-olefin comonomer propylene and/or 1-butene, having a density of from 0.85 to 0.92 g/cm3, an MI of from 0.Type: GrantFiled: March 21, 2005Date of Patent: September 11, 2012Assignee: Exxonmobil Chemical Patents Inc.Inventors: Narayanaswami Raja Dharmarajan, Rui Zhao, Bruce Allan Harrington, George James Pehlert, Periagaram S. Ravishankar, Kent L. Chasey
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Patent number: 8242220Abstract: Copolymer of ethylene and an alpha-olefin having (a) a density in the range 0.900-0.940 g/cm3, (b) a melt index MI2 (2.16 kg, 190° C.) in the range of 0.01-50 g/10 min, (c) a molecular weight distribution (Mw/Mn) in the range 3.5 to 4.5, and (d) a melt elastic modulus G?(G?=500 Pa) in the range 40 to 150 Pa. The copolymer has a melt index MI2 (2.16 kg, 190° C.) Dow Rheology Index (DRI) and melt elastic modulus G?(G?=500 Pa) satisfying the equations of [DRI/MI2]>0 and [DRI/MI2]<0.0225G??0.745.Type: GrantFiled: December 11, 2007Date of Patent: August 14, 2012Assignee: Ineos Europe LimitedInventor: Choon Kool Chai
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Patent number: 8236909Abstract: The present invention provides a method for preparing a polymer by precipitation polymerization, comprising the steps of mixing an antisolvent a), a monomer b), and a catalyst c), and while polymerizing the monomers, simultaneously precipitating a polymer formed by the monomers b) in a solid phase.Type: GrantFiled: December 5, 2007Date of Patent: August 7, 2012Assignee: LG Chem, Ltd.Inventors: Seung-Young Park, Sung-Cheol Yoon
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Patent number: 8222358Abstract: In a process for producing a propylene copolymer, propylene and at least one olefin monomer selected from ethylene and alpha olefins having 4 to 20 carbon atoms are contacted with a catalyst system comprising (a) a catalyst precursor comprising an organometallic compound and (b) an activator comprising a fluoroarylborate anion represented by the formula: Ct+[B(Ar)x(R)n]? where Ct+ is a cation capable of extracting an alkyl group from, or breaking a carbon-metal bond of, the organometallic compound; Ar is a fluorophenyl group; R is a fluoronaphthyl group and each of x and n is 1, 2, or 3, with the proviso that the sum of x+n=4.Type: GrantFiled: January 26, 2007Date of Patent: July 17, 2012Assignee: ExxonMobil Chemical Patents Inc.Inventors: George Rodriguez, Bruce Allan Harrington
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Patent number: 8207280Abstract: The present invention provides dual catalyst systems containing a metallocene catalyst and a hydrogen scavenging catalyst, and polymerization processes employing these dual catalyst systems. Due to a reduction in hydrogen levels in the polymerization processes, olefin polymers produced from these polymerization processes may have a higher molecular weight, a lower melt index, and higher levels of unsaturation.Type: GrantFiled: June 28, 2010Date of Patent: June 26, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Rex E. Murray, William B. Beaulieu, Qing Yang, Errun Ding, Gary L. Glass, Alan L. Solenberger, Steven J. Secora
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Publication number: 20120149854Abstract: The present invention provides polymerization catalyst compositions employing novel heterodinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization of olefins are also provided.Type: ApplicationFiled: February 16, 2012Publication date: June 14, 2012Applicant: CHEVRON PHILLIPS CHEMICAL COMPANY LPInventors: REX E. MURRAY, KUMUDINI C. JAYARATNE, QING YANG, JOEL L. MARTIN, GARY L. GLASS
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Patent number: 8188202Abstract: A polymer comprising a unit represented by the following formula (1); and a process for producing the polymer comprising the step of polymerizing a diene compound such as 9,9-diallylfluorene in the presence of a polymerization catalyst formed by contacting a nickel compound with an organoaluminum compound and/or a boron compound:Type: GrantFiled: May 26, 2010Date of Patent: May 29, 2012Assignees: Sumitomo Chemical Company, Limited, Tokyo Institute of TechnologyInventors: Kohtaro Osakada, Daisuke Takeuchi, Yusuke Fukuda, Osamu Ihata, Hiroshi Kuribayashi
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Publication number: 20120123071Abstract: The invention is directed to a process for the production of high density polyethylene by polymerisation of ethylene in the presence of a supported chromium oxide based catalyst and an activator characterised in that the activator comprises the reaction mixture of a boron compound and/or an alkyl aluminium compound and a nitrogen containing compound wherein the boron compound is a (C1-C10) alkyl boron compound or a (C5-C20) aromatic boron compound, wherein the alkyl aluminum compound is an organo aluminium compound having the formula AIR3 in which R is a hydrocarbon radical containing 1-10 carbon atom and wherein the nitrogen containing compound comprises —NH2, —NHR, —NR2, wherein R may be an alkyl or a substituted alkyl having from 1 to 40 carbon atoms.Type: ApplicationFiled: April 6, 2010Publication date: May 17, 2012Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Wei Xu, Ali Saad Headan, Sirajudeen Mohamed, Atieh Aburaqabah
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Patent number: 8168556Abstract: A metallocene compound with the 4- and 7-positions on the indenyl moiety possessing large aromatic substituents is prepared in accordance with a method which produces substantially 100 percent racemic isomer. Advantageously, polymerization catalysts including the metallocene of the invention provide superior olefin polymerization results.Type: GrantFiled: October 25, 2007Date of Patent: May 1, 2012Assignee: Lummus Novolen Technology GmbHInventors: Joerg Schulte, Thorsten Sell, Matthew Grant Thorn, Andreas Winter, Anita Dimeska
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Patent number: 8163860Abstract: The invention relates to a norbornene copolymer having excellent properties such as transparency, heat resistance, low water absorption and electric insulating property, which copolymer comprises a monomer unit represented by formula (1) and formula (2) and having a number average molecular weight (Mn) of 300,000 to 2,000,000. (In the formulae, R1 represents an alkyl group having 1 to 10 carbon atoms; and R2, R3 and R4 independently represent a hydrogen atom or an alkyl group having 1 to 10 carbon atoms.Type: GrantFiled: January 29, 2010Date of Patent: April 24, 2012Assignees: Showa Denko K.K., RikenInventors: Shojiro Kaita, Nobuyuki Kibino, Kazufumi Kai
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Patent number: 8158735Abstract: This invention relates to (meth)acrylate-based polymerizable compositions and adhesive systems prepared therefrom, which include a alkylated borohydride or tetraalkyl borane metal or ammonium salt and a polymerizable siloxane. The inventive compositions and adhesive systems are particularly well suited for bonding applications which involve at least one low energy bonding surface, for example, the polyolefins, polyethylene, and polypropylene.Type: GrantFiled: July 28, 2008Date of Patent: April 17, 2012Assignee: Loctite (R&D) LimitedInventors: Brendan J. Kneafsey, Edward P. Scott
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Patent number: 8158732Abstract: A method for preparing a cyclic olefin addition polymer of high gas permeability, which method including subjecting a specific type of cyclic olefin-functional siloxane and a mixture thereof with a specific type of cyclic olefin compound to addition polymerization in the presence of a multi-component catalyst containing (A) a zero-valent palladium compound, (B) an ionic boron compound, and (C) a phosphine compound having a substituent group selected from an alkyl group having 3 to 6 carbon atoms, a cycloalkyl group and an aryl group, to obtain a cyclic olefin addition polymer of high gas permeability wherein a ratio of the structural units derived from the cyclic olefin-functional siloxane is at 10 to 100 mole % of the addition polymer and a number average molecular weight (Mn) ranges from 100,000 to 2,000,000.Type: GrantFiled: July 28, 2011Date of Patent: April 17, 2012Assignee: Shin-Etsu Chemical Co., Ltd.Inventors: Yasuo Wakatsuki, Hiroaki Tetsuka
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Patent number: 8158733Abstract: Catalysts useful for polymerizing olefins are disclosed. The catalysts comprise an activator and a Group 4 metal complex that incorporates a dianionic, tridentate 2-(2-aryloxy)quinoline or 2-(2-aryloxy)dihydroquinoline ligand. In one aspect, supported catalysts are prepared by first combining a boron compound having Lewis acidity with excess alumoxane to produce an activator mixture, followed by combining the activator mixture with a support and the tridentate, dianionic Group 4 metal complex. The catalysts are easy to synthesize, support, and activate, and they enable facile production of high-molecular-weight polyolefins.Type: GrantFiled: July 22, 2009Date of Patent: April 17, 2012Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Linda N. Winslow, Shahram Mihan, Reynald Chevalier, Lenka Lukesova, Ilya E. Nifant'ev, Pavel V. Ivchenko
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Patent number: 8143183Abstract: The present invention provides polymerization catalyst compositions employing novel dinuclear metallocene compounds. Methods for making these new dinuclear metallocene compounds and for using such compounds in catalyst compositions for the polymerization and copolymerization of olefins are also provided.Type: GrantFiled: November 10, 2010Date of Patent: March 27, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Rex E. Murray, Kumudini C. Jayaratne, Qing Yang, Joel L. Martin
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Patent number: 8129488Abstract: Provided are a novel transition metal complex where a monocyclopentadienyl ligand to which an amido or alcoxy group is introduced is coordinated, a method of synthesizing the same, and olefin polymerization using the transition metal complex. Compared to a conventional transition metal complex having a silicon bridge and an oxido ligand, the transition metal complex has a phenylene bridge, so that a monomer easily approaches the transition metal complex in terms of structure and a pentagon ring structure of the transition metal complex is stably maintained. The catalyst composition including the transition metal complex is used to synthesize a polyolefin copolymer having a very low density less than 0.910 g/cc.Type: GrantFiled: April 21, 2009Date of Patent: March 6, 2012Assignee: LG Chem, Ltd.Inventors: Choong Hoon Lee, Eun-Jung Lee, Seungwhan Jung, Jong Joo Ha, Beomdoo Seo, Bun Yeoul Lee, Ui Gab Joung, Dae June Joe
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Patent number: 8114946Abstract: The present invention provides a polymerization process which is conducted by contacting an olefin monomer and at least one olefin comonomer in the presence of hydrogen and a metallocene-based catalyst composition. Polymers produced from the polymerization process are also provided, and these polymers have a reverse comonomer distribution, low levels of long chain branches, and a ratio of Mw/Mn from about 3 to about 6.Type: GrantFiled: December 18, 2008Date of Patent: February 14, 2012Assignee: Chevron Phillips Chemical Company LPInventors: Qing Yang, Max P. McDaniel, Joel L. Martin, Tony R. Crain, Randy S. Muninger, Jerry T. Lanier, Jeff S. Fodor, Paul J. Deslauriers, Chung C. Tso, David C. Rohlfing
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Publication number: 20120035339Abstract: The invention is directed to a slurry phase polymerisation process for the preparation of ethylene-?-olefin copolymers by polymerising ethylene in the presence of a chromium containing catalyst and a diluent. The polymerisation takes place in the presence of·a chromium-containing catalyst, ·an aliphatic or alicyclic boron compound having at least one boron to carbon linkage and·an aliphatic or alicyclic group MA or group IMA element based compound having at least one metal or metalloid to carbon linkage wherein the chromium containing catalyst is not reduced by carbon monoxide after the activation in a non-reducting atmosphere and wherein the metal or metalloid is present in an amount higher than 1 ppm relative to the amount of diluent.Type: ApplicationFiled: April 6, 2010Publication date: February 9, 2012Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Godefridus Arnoldus Henricus Nooijen, Matthijs van Kessel