Transition Metal Is Group Vb, Vib Or Viii Metal Patents (Class 526/169)
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Publication number: 20030036615Abstract: Alpha-olefins are manufactured in high yield and with very high selectivity by contacting ethylene with an iron complex of a selected 2,6-pyridinedicarboxaldehyde bisimine or a selected 2,6-diacylpyridine bisimine, and in some cases a selected activator compound such as an alkyl aluminum compound. Novel bisimines and their iron complexes are also disclosed. The &agr;-olefins are useful as monomers and chemical intermediates.Type: ApplicationFiled: September 5, 2002Publication date: February 20, 2003Inventors: Maurice S. Brookhart, Brooke L. Small
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Patent number: 6517284Abstract: A reservoir drainage system drains water away from a soil around a footing foundation of a structure and collects the drained water outside of the same. The system includes a network of drainage tubes externally rounding a perimeter of the footing foundation and connected to a collecting tube. The latter collects the drained water from the network and directs it by gravity into a collecting reservoir member located outside of the structure below a bottom level of the foundation. The drainage network has a first part that is substantially horizontally leveled and longitudinally runs along a first portion of the perimeter and generally against the same. The network also includes a second part that continues the first part, is connected to it at an upper end and longitudinally runs along a complementary second portion of the perimeter. The second part slightly outwardly diverts away and is downwardly inclined from the footing foundation down to a lower end connected to the collecting tube.Type: GrantFiled: April 23, 2001Date of Patent: February 11, 2003Inventor: Jean-Claude Gamache
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Patent number: 6518379Abstract: In a process for polymerizing dienes in a solvent comprising vinylaromatic monomers, the polymerization is carried out in the presence of a metal compound of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo or W as catalyst and a Lewis acid as cocatalyst and, if desired, an alkylating agent and, if desired, a regulator. This process can be used for preparing high-impact polystyrene, acrylonitrile-butadiene-styrene copolymers or methyl methacrylate-butadiene-styrene copolymers.Type: GrantFiled: November 14, 2001Date of Patent: February 11, 2003Assignee: BASF AktiengesellschaftInventors: Stephan Jüngling, Christian Schade, Hermann Gausepohl, Volker Warzelhan, Rainer Moors, Hansjörg Schäch, Joachim Queisser, Gerrit Luinstra, Jürgen Demeter
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Patent number: 6511756Abstract: A thermoplastic dicyclopentadiene ring-opening polymer obtained by ring-opening polymerization of a monomer component containing a dicyclopentadiene monomer, characterized in that polycyclic rings which are repeating units of the polymer are bonded in cis-position relative to the carbon-carbon double bond of the main chain of the polymer in 50 mol % or more of the repeating units based on the total repeating units and the content of a low-molecular weight component of 2,000 or less in molecular weight is 10% by weight or less based on the total polymer components, and a hydrogenation product obtained by hydrogenating the carbon-carbon unsaturated bond of the thermoplastic dicyclopentadiene ring-opening polymer.Type: GrantFiled: April 24, 2000Date of Patent: January 28, 2003Assignee: Nippon Zeon Co., Ltd.Inventors: Kazuyuki Obuchi, Masaharu Tokoro, Teruhiko Suzuki, Hajime Tanisho, Kenji Otoi
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Patent number: 6506861Abstract: Olefins are polymerized by novel transition metal complexes of selected iminocarboxylate and iminoamido ligands, sometimes in the presence of cocatalysts such as alkylaluminum compounds or neutral Lewis acids. Olefins which may be (co)polymerized include ethylene, &agr;-olefins, and olefins containing polar groups such as olefinic esters for example acrylate esters. Also described are certain “Zwitterionic” transition metal complexes as polymerization catalysts for making polar copolymers. The resulting polymers are useful as thermoplastics and elastomers.Type: GrantFiled: May 31, 2001Date of Patent: January 14, 2003Assignee: E. I. du Pont de Nmeours and CompanyInventors: Lin Wang, Lynda Kaye Johnson, Alex Sergey Ionkin
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Patent number: 6500907Abstract: Catalyst system suitable for polymerizing unsaturated monomers and comprising active constituents obtainable by reacting A) a transition metal compound with B) aluminum trifluoride, C) a cation-forming compound and, if desired, D) further components.Type: GrantFiled: October 11, 2000Date of Patent: December 31, 2002Assignee: Basell Polyolefine GmbHInventors: Carsten Süling, Marc Oliver Kristen, Günther Schweier, Andrei Gonioukh, Gerhard Hauck
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Publication number: 20020198337Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) an molybdenum-containing compound, (b) a silyl phosphonate, and (c) an organoaluminum compound.Type: ApplicationFiled: June 8, 2001Publication date: December 26, 2002Applicant: Bridgestone Corp.Inventors: Steven Luo, Michael W. Hayes, Dennis R. Brumbaugh
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Patent number: 6465585Abstract: A catalyst composition that is the combination of or the reaction product of ingredients comprising (a) a chromium-containing compound; (b) an organomagnesium compound; and (c) a silyl phosphonate, also, a process for forming conjugated diene polymers by using the catalyst composition.Type: GrantFiled: February 19, 2001Date of Patent: October 15, 2002Assignee: Bridgestone CorporationInventor: Steven Luo
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Patent number: 6455648Abstract: A process is provided which comprises preparing an olefin oligomerization or trimerization catalyst system and producing olefins in the presence of the olefin oligomerization or trimerization catalyst system and a solvent, wherein said catalyst system preparation comprises the steps of first contacting a chromium source and a pyrrole-containing compound to form a chromium/pyrrole mixture; second, contacting said chromium/pyrrole mixture with a metal alkyl to form a catalyst system; and then contacting said catalyst system with an alpha-olefin, preferably ethylene.Type: GrantFiled: December 29, 1999Date of Patent: September 24, 2002Assignee: Chevron Phillips Chemical Company LPInventors: Jeffrey W. Freeman, Warren M. Ewert, Bruce E. Kreischer, Ronald D. Knudsen, Glyndal D. Cowan
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Publication number: 20020111446Abstract: A polymerization system for ring opening polymerization of cycloolefins, comprising a catalyst [MOX2L2], a Lewis acid as co-catalyst, and a chain-transfer agent, 1Type: ApplicationFiled: December 7, 2000Publication date: August 15, 2002Inventors: Shakti L. Mukerjee, Vernon L. Kyllingstad
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Patent number: 6433113Abstract: A polymerization system for ring opening polymerization of cycloolefins, comprising a catalyst [MoOX2L2], a Lewis acid as co-catalyst, and a chain-transfer agent, wherein (1) both X groups are the same halogen atom selected from the group consisting of Cl and Br, and both L groups are the same halogen atom as X; or (2) both of the X groups are the same halogen atom selected from the group consisting of Cl and Br, and both of the L groups are the same straight chain or branched alkyl group having 1-4 carbon atoms; or (3) both X groups are the same halogen atom selected from the group consisting of Cl and Br, and both L groups are the same straight chain or branched alkoxy group having 1-4 carbon atoms; or (4) both X groups are the same alkyl group having 1-4 carbon atoms, and both L groups are the same alkoxy group having 1-4 carbon atoms; or (5) one X group is a halogen atom selected from the group consisting of Cl and Br, and the other X group together with both L groups consType: GrantFiled: December 7, 2000Date of Patent: August 13, 2002Assignee: Zeon CorporationInventors: Shakti L. Mukerjee, Vernon L. Kyllingstad
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Patent number: 6388032Abstract: A cyclic olefin polymer having a small content of a catalyst residue, a production process for the same and use of the same as an optical material. Catalysts used for polymerization and/or hydrogenation reaction for forming the cyclic olefin polymer are decomposed efficiently by adding at least one compound selected from the group consisting of an &agr;-oxyacid and &bgr;-oxyacid having one hydroxyl group and one carboxyl group in the molecule and derivatives obtained by substituting hydroxyl group thereof by an alkoxyl group, and the decomposition products are removed by rendering them insoluble in a reaction solvent used for the polymerization and/or hydrogenation reaction and precipitating them efficiently.Type: GrantFiled: April 14, 2000Date of Patent: May 14, 2002Assignee: Teijin LimitedInventors: Michio Yamaura, Kiyonari Hashidzume, Hideaki Nitta, Masaki Takeuchi, Kaoru Iwata
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Publication number: 20020049287Abstract: The present invention relates to photoresist monomers, polymers formed therefrom and photoresist compositions suitable for photolithography processes employing a DUV light source, such as KrF (249 nm) and ArF(193 nm); EUV; VUV; E-beam; ion-beam; and X-ray.Type: ApplicationFiled: August 26, 1999Publication date: April 25, 2002Inventors: CHI HYEONG ROH, JAE CHANG JUNG
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Patent number: 6348550Abstract: A catalyst composition that is the combination of or the reaction product of ingredients including (a) a molybdenum-containing compound, (b) a hydrogen phosphite, and (c) a blend of two or more sterically distinct organoaluminum compounds. This catalyst composition is particularly useful for polymerizing conjugated dienes. When this catalyst composition is used to polymerize 1,3-butadiene into syndiotactic 1,2-polybutadiene, the ratio of the organoaluminum compounds can be adjusted to vary the melting temperature and molecular weight of the polymer product.Type: GrantFiled: April 13, 2000Date of Patent: February 19, 2002Assignee: Bridgestone CorporationInventor: Steven Luo
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Publication number: 20020007026Abstract: An object of the present invention is to provide a novel poly(cyclic conjugated diene) and a process for producing the same; and a modifying product, a hydrogenated product, and a poly(cyclic conjugated diene) comprising phenylene thereof.Type: ApplicationFiled: May 6, 1999Publication date: January 17, 2002Inventors: MITSURU NAKANO, ARIMITSU USUKI, QING YAO
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Patent number: 6316565Abstract: A novel copolymer useful for photoresist, which allows a formation of patterns showing a significantly improved resolution in a photolithography using ArF (193 nm) light source, is prepared by copolymerizing at least two cycloaliphatic olefins with an amide or imide.Type: GrantFiled: July 18, 1997Date of Patent: November 13, 2001Assignee: Hyundai Electronics Industries Co., Ltd.Inventors: Jae Chang Jung, Chi Hyeong Roh
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Publication number: 20010034456Abstract: This invention relates to a composition producible by mixing an iron carbonyl complex selected from among the group Fe(CO)5, Fe2(CO)9, Fe3(CO)12 or of anhydrous iron salts FemXn, wherein m=1 or 2 and n=2 or 3 and X=halide, carbonate, nitrate, nitrite, sulfide, sulfate, phosphate, rhodanide, acetate, acetylacetonate or a mixture of two or three of these compounds with a cyclopentadiene derivative of the general formula I, 1Type: ApplicationFiled: March 14, 2001Publication date: October 25, 2001Inventors: Peter Schertl, Josef Sanders
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Patent number: 6303710Abstract: The polymerization rate of olefins polymerizations using late transition metal catalysts which are coordinated to various ligands may be controlled by the amount of hydrogen present in the polymerization. The effect of hydrogen on polymerization rate is reversible.Type: GrantFiled: January 27, 2000Date of Patent: October 16, 2001Assignee: E. I. du Pont de Nemours and CompanyInventor: Tuyu Xie
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Patent number: 6303717Abstract: Oily hyperbranched polymers derived from ethylene, propylene, butene and/or a C5-C24 &agr;-olefin, and a method for their synthesis, are disclosed. The polymers have non-regular microstructures and are characterized by a ratio ()of methyl hydrogens centered around 0.85 ppm on the 1H-NMR spectra of the polymers relative to total aliphatic hydrogens of from about 0.40 to about 0.65 for polymers derived from ethylene or butene, and a ratio ()of from greater than 0.50 to about 0.65 for polymers derived from propylene. A method for grafting hyperbranched polymers derived from ethylene, propylene, butene and/or a C5-C24 &agr;-olefin onto aromatic rings in organic molecules and polymers, and the resulting grafted materials, are also disclosed. The hyperbranched polymers and grafted materials are useful, for example, as lubricants and lubricant additives.Type: GrantFiled: February 3, 1998Date of Patent: October 16, 2001Assignee: The Penn State Research Foundation University Park PAInventors: Ayusman Sen, Jang Sub Kim, James H. Pawlow, Shahid Murtuza, Smita Kacker, Louis M. Wojcinski, III
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Publication number: 20010023281Abstract: A catalytic composition is obtained by mixing at least one chromium compound with at least one aryloxy compound of an element M selected from the group formed by magnesium, calcium, strontium and barium, with general formula M(RO)2-nXn, where RO is an aryloxy radical containing 6 to 80 carbon atoms, X is a halogen or a hydrocarbyl radical containing 1 to 30 carbon atoms and n is a whole number that can take values of 0 to 2, and with at least one aluminum compound selected from hydrocarbylaluminum compounds (tris(hydrocarbyl)-aluminum, chlorinated or brominated hydrocarbylaluminum compounds) and aluminoxanes. The catalytic composition can be used in an ethylene oligomerization process, in particular to produce 1-hexene.Type: ApplicationFiled: December 26, 2000Publication date: September 20, 2001Inventors: Dominique Commereuc, Sebastien Drochon, Lucien Saussine
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Patent number: 6281304Abstract: In a process for preparing polymers of vinylaromatic compounds at from 0 to 150° C. in the presence of metallocene complexes as catalysts, the polymerization is carried out at a pressure of from 5 to 300 bar in the presence of aliphatic C1-C4-hydrocarbons using a coordination complex selected from the group consisting of strong, uncharged Lewis acids, ionic compounds having Lewis acid cations and ionic compounds having Bronsted acids as cations as cocatalyst.Type: GrantFiled: September 4, 1997Date of Patent: August 28, 2001Assignee: BASF AktiengesellschaftInventors: Josef Wünsch, David Fischer
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Patent number: 6245869Abstract: A process for producing medium density polyethylene by copolymerizing ethylene and an alpha-olefinic comonomer comprising from 3 to 10 carbon atoms in the presence of a chromium-based catalyst having a support comprising silica and titania, the catalyst being fluorinated and having been chemically reduced by carbon monoxide, and in the presence of a co-catalyst selected from at least one of an aluminum alkyl and a zinc alkyl to produce a polyethylene copolymer having a density of from 0.930 to 0.945 g/cc and a dispersion index (D) of from 9 to 13.Type: GrantFiled: June 24, 1999Date of Patent: June 12, 2001Assignee: Fina Research, S.A.Inventors: Guy Debras, Philippe Bodart
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Patent number: 6239238Abstract: Organometallic complexes having two phosphinimine ligands and at least one activatable ligand are catalyst components for olefin polymerization. Preferred polymerization systems are prepared by combining the organometallic complexes with an ionic activator and/or an alumoxane. Preferred catalyst components contain titanium, zirconium, or hafnium and are activated with an ionic activator to form catalysts for ethylene polymerization.Type: GrantFiled: June 15, 1999Date of Patent: May 29, 2001Assignee: Nova Chemicals (International) S.A.Inventors: Stephen John Brown, Xiaoliang Gao, Daryll G. Harrison, Ian McKay, Linda Koch, Qinyan Wang, Wei Xu, Rupert Edward von Haken Spence, Douglas W. Stephan
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Patent number: 6214951Abstract: Thermoplastic cycloolefin copolymers (COCs) having high tear strength and low optical attenuation, a process for their preparation, and their use as optical waveguides (optical fibers).Type: GrantFiled: April 28, 1997Date of Patent: April 10, 2001Assignee: Hoechst AktiengesellschaftInventors: Michael-Joachim Brekner, Hellmuth Deckers, Frank Osan
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Patent number: 6169152Abstract: An olefin-polymerizing catalyst which comprises (A) a transition metal compound having at least one cyclic amide ligand and (B) an organoaluminum compound and/or an aluminoxane compound with or without (C) an ionic compound, the catalyst component of which is simple to synthesize, and which can polymerize an olefin at a lower temperature at a lower pressure than conventional catalysts, and particularly is high in copolymerizability of &agr;-olefins, and is particularly effective in producing ethylene/polar group-containing cyclic olefin copolymers.Type: GrantFiled: July 2, 1997Date of Patent: January 2, 2001Assignee: JSR CorporationInventor: Tatsuya Sakai
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Patent number: 6093779Abstract: Compositions comprising at least one nonvolatile acetylene alone or together with a strained cycloolefin and catalytic amounts of a catalyst for metathesis polymerization, which comprise at least one one-component catalyst from the group molybdenum compounds, tungsten compounds, niobium compounds and tantalum compounds which comprise (a) either at least two methyl groups or two monosubstituted methyl groups without .alpha. hydrogen atoms in the substituent or (b) at least one halogen and only one silylmethyl group attached to the metal. The storage-stable compositions can be polymerized by the action of actinic radiation or by short-term irradiation and subsequent thermal curing. The polymers can be used to prepare shaped articles, films, coatings and relief images.Type: GrantFiled: June 16, 1997Date of Patent: July 25, 2000Assignee: Ciba Specialty Chemicals CorporationInventors: Paul Adriaan Van Der Schaaf, Andreas Hafner, Andreas Muhlebach
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Patent number: 6031058Abstract: Silyl substituted polymers of polycycloolefins are provided as well as catalyst systems for their preparation. The polymers of the invention include polycyclic repeat units that contain pendant silyl functional groups represented by the following formulae: ##STR1## wherein A is a divalent radical selected from the following structures: ##STR2## R.sup.9 independently represents hydrogen, methyl, or ethyl; R.sup.10, R.sup.11, and R.sup.12 independently represent halogen, linear or branched (C.sub.1 to C.sub.20) alkyl, linear or branched (C.sub.1 to C.sub.20) alkoxy, linear or branched (C.sub.1 to C.sub.20) alkyl carbonyloxy, (C.sub.1 to C.sub.20) alkyl peroxy, and substituted or unsubstituted (C.sub.6 to C.sub.20) aryloxy; R.sup.10, R.sup.11, and R.sup.12 together with the silicon atom to which they are attached form the group: ##STR3## n is a number from 0 to 5; and n' is 0 or 1; and n" is a number from 0 to 10.Type: GrantFiled: March 8, 1999Date of Patent: February 29, 2000Assignee: The B.F. Goodrich CompanyInventors: Lester H. McIntosh, III, Brian L. Goodall, Robert A. Shick, Saikumar Jayaraman
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Patent number: 6013745Abstract: The present invention relates to the polymerization of one or more alpha olefins in the presence of a transition metal catalyst having either a heterobifunctional ligand, having a phosphorus and a nitrogen atom, or a bis-phosphinimine ligand having two nitrogen atoms, in the presence of an activator.Type: GrantFiled: August 4, 1997Date of Patent: January 11, 2000Assignee: The Governors of the University of AlbertaInventors: Ian McKay, Alison Ciupa, Arpad F. Somogyvari, Beth Lorraine Creed, Alan Rodney Sanger, David John Law, Ronald George Cavell
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Patent number: 6011127Abstract: A process for the production of ethylenic polymers is disclosed in which an ethylenic monomer is polymerized in the presence of a catalyst comprising a chromium compound, an alumoxane and an organometallic alkoxide and/or organometallic siloxide and a carrier supporting thereon these compounds. The resultant polymer has a balanced proportion of rigidity and environmental stress cracking resistance (ESCR) and an excellent moldability property.Type: GrantFiled: March 7, 1997Date of Patent: January 4, 2000Assignee: Showa Denko K.K.Inventors: Takashi Monoi, Masakazu Yamamoto, Hidenobu Torigoe, Yoshimitsu Ishihara, Shintaro Inazawa
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Patent number: 5965678Abstract: The present invention relates to a catalyst system based on monoazadiene metal complexes of the formula ##STR1## and a co-catalyst suitable for activating the metal complex, and to the use of the catalyst system for the polymerization of unsaturated compounds, especially for the polymerization and copolymerization of olefins and/or dienes.The novel catalyst system is characterised in particular by its ease of access, its lack of sensitivity to external influences and its ease of handling.Type: GrantFiled: June 12, 1998Date of Patent: October 12, 1999Assignee: Bayer AGInventors: Sigurd Becke, Heike Windisch, Joachim Scholz, Steffen Kahlert
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Patent number: 5854363Abstract: An (omega-alkenyl) (cyclopentacarbyl) metallocene compound is provided. Polymerization processes therewith are also provided.Type: GrantFiled: November 24, 1997Date of Patent: December 29, 1998Assignee: Phillips Petroleum CompanyInventors: Michael Jung, Helmut G. Alt, M. Bruce Welch
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Patent number: 5851946Abstract: The invention relates to the use of intramolecularly stabilized organometallic compounds as components in coordination catalyst systems, corresponding coordination catalyst systems and processes for the preparation of polymers by coordination polymerization of unsaturated hydrocarbons by catalysed metathesis of alkenes and alkynes using such coordination catalyst systems.Type: GrantFiled: September 25, 1995Date of Patent: December 22, 1998Assignee: Merck Patent Gesellschaft mit Beschrankter HaftungInventors: Ludwig Pohl, Eike Poetsch, Hans-Ludwig Hirsch, Herbert Schumann, Karin Weiss
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Patent number: 5840820Abstract: The present invention provides a process for olefin metathesis. The process comprises (a) providing a reaction mixture comprising an olefin, a metathesis initiator, and a reaction medium comprising carbon dioxide, and (b) reacting the reaction mixture to provide a metathesis modified olefin. The olefin metathesis reaction may be an olefin metathesis exchange reaction, an olefin metathesis degradation reaction, or a metathesis polymerization reaction. The carbon dioxide medium may be liquid, supercritical, and gaseous carbon dioxide.Type: GrantFiled: June 6, 1995Date of Patent: November 24, 1998Assignee: The University of North Carolina at Chapel HillInventors: Joseph M. DeSimone, Chad D. Mistele
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Patent number: 5741869Abstract: Addition polymers derived from norbornene-functional monomers are terminated with an olefinic moiety derived from a chain transfer agent selected from a compound having a terminal olefinic double bond between adjacent carbon atoms, excluding styrenes, vinyl ethers, and conjugated dienes and at least one of said carbon atoms has two hydrogen atoms attached thereto. The addition polymers of this invention are prepared from a single or multicomponent catalyst system including a Group VIII metal ion source. The catalyst systems are unique in that they catalyze the insertion of the chain transfer agent exclusively at a terminal end of the polymer chain.Type: GrantFiled: June 7, 1995Date of Patent: April 21, 1998Assignee: The B.F. Goodrich CompanyInventors: Brian Leslie Goodall, George Martin Benedikt, Lester Howard McIntosh, III, Dennis Allen Barnes, Larry Funderburk Rhodes
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Patent number: 5707913Abstract: Catalyst systems which are suitable for the polymerization of olefinically unsaturated hydrocarbons contain, as active components,A) an amidinato metal complex of the formula A ##STR1## where M is a metal from group IIIb, IVb, Vb or VIb of the Periodic Table of Elements or a metal from the lanthanide group,X is a negative leaving atom or a negative leaving group, and the radicals X may be identical or different if (n-m)>1,R.sup.1, R.sup.2 and R.sup.3 are each a C-organic or Si-organic radical,n is the valency of M in the metal complex A andm is from 1 to 5, with the proviso that n-m.gtoreq.0,and,B) an activator in a molar ratio of activator B to metal complex A of from 0.5:1 to 10,000:1.Type: GrantFiled: June 6, 1995Date of Patent: January 13, 1998Assignee: BASF AktiengesellschaftInventors: Ruger Schlund, Martin Lux, Frank Edelmann, Ulrike Reissmann, Wolfgang Rohde
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Patent number: 5646220Abstract: Cycloolefin block copolymers, which in particular are suitable as phase promoters, are preferably obtained by copolymerization of polycyclic olefins, such as norbornene, with acyclic olefins, such as ethylene, by, at a molecular weight distribution M.sub.w /M.sub.n of the polymer block forming of less than 2, changing the reaction conditions one or more times in such a way that the monomer/comonomer ratio changes by at least 10% or a further polymerizable monomer is metered into the monomer or the monomers.Type: GrantFiled: June 1, 1995Date of Patent: July 8, 1997Assignee: Hoechst AktiengesellschaftInventors: Michael-Joachim Brekner, Frank Osan, Jurgen Rohrmann
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Patent number: 5629392Abstract: Process for the preparation of (co) polymers of .alpha.-olefins which comprises polymerizing at least one .alpha.-olefin in the presence of a catalytic system consisting essentially of:a) a complex of a metal of groups VIB or VB having general formula (I):M(OCONRR').sub.n (I)wherein M represents a transition metal selected from the group consisting of Ti, Zr, H& and V; R and R', the same or different, represent a C.sub.1 -C.sub.12 aliphatic or C.sub.18 aromatic radical whereas n represents the oxidation state of the metal; andb) a cocatalyst consisting of aluminoxane.Type: GrantFiled: May 23, 1996Date of Patent: May 13, 1997Assignee: Enichem S.p.A.Inventors: Roberto Santi, Giuseppe Cometti, Liliana Gila, Antonio Proto
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Patent number: 5621047Abstract: This invention relates to a process for preparation of non-crosslinked linear monofunctional and telechelic difunctional unsaturated polymers wherein the functional groups are acrylate or methacrylate groups. The average functionality number of the monofunctional unsaturated polymers is at least 0.7, as determined by nuclear magnetic resonance spectroscopy (NMR). The average functionality number of the telechelic difunctional polymers is at least 1.7, as determined by NMR. Alkyl acrylates or alkyl methacrylates are reacted with cyclic olefinic non-conjugated compounds or unsaturated hydrocarbon polymers to prepare monofunctional and difunctional polymers. The process is substantially free of side reactions comprising double bond migration and cyclization.Type: GrantFiled: October 13, 1995Date of Patent: April 15, 1997Assignee: Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, Steven A. Cohen, William G. Bouslog
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Patent number: 5585509Abstract: Metallocene complexes of the general formula I ##STR1## where the substituents Y, M, x, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.6, R.sup.7, R.sup.8, and R.sup.9 are as described in the disclosure, and ligand systems of the general formula II ##STR2## as intermediates.Type: GrantFiled: March 1, 1995Date of Patent: December 17, 1996Assignee: BASF AktiengesellschaftInventors: Franz Langhauser, David Fischer, J urgen Kerth, G unther Schweier, Hans-Herbert Brintzinger, Elke Barsties, Werner Roell
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Patent number: 5571881Abstract: Addition polymers derived from norbornene-functional monomers are terminated with an olefinic moiety derived from a chain transfer agent selected from a compound having a terminal olefinic double bond between adjacent carbon atoms, excluding styrenes, vinyl ethers, and conjugated dienes and at least one of said carbon atoms has two hydrogen atoms attached thereto. The addition polymers of this invention are prepared from a single or multicomponent catalyst system including a Group VIII metal ion source. The catalyst systems are unique in that they catalyze the insertion of the chain transfer agent exclusively at a terminal end of the polymer chain.Type: GrantFiled: June 7, 1995Date of Patent: November 5, 1996Assignee: The B. F. Goodrich CompanyInventors: Brian L. Goodall, George M. Benedikt, Lester H. McIntosh, III, Dennis A. Barnes, Larry F. Rhodes
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Patent number: 5569730Abstract: Addition polymers derived from norbornene-functional monomers are terminated with an olefinic moiety derived from a chain transfer agent selected from a compound having a terminal olefinic double bond between adjacent carbon atoms, excluding styrenes, vinyl ethers, and conjugated dienes and at least one of said carbon atoms has two hydrogen atoms attached thereto. The addition polymers of this invention are prepared from a single or multicomponent catalyst system including a Group VIII metal ion source. The catalyst systems are unique in that they catalyze the insertion of the chain transfer agent exclusively at a terminal end of the polymer chain.Type: GrantFiled: November 15, 1994Date of Patent: October 29, 1996Assignee: The B. F. Goodrich CompanyInventors: Brian L. Goodall, George M. Benedikt, Lester H. McIntosh, III, Dennis A. Barnes, Larry F. Rhodes
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Patent number: 5519101Abstract: A polymerization process for preparation of oligomers and polymers having at least one internal carbon-to-carbon double bond and containing functional groups comprising terminal carbon-to-carbon double bonds is disclosed. The polymerization process is substantially free of side reactions comprising double bond migration. The oligomers and polymers are prepared from acyclic polyenes of from 2 to about 30 carbon atoms. The catalyst system comprises a metathesis catalyst (A) comprising a transition metal compound, an activator (B) selected from the group consisting of organic tin compounds and organic aluminum halides and (C) an organic Lewis base. Yields are at least 60% of theoretical based on acyclic polyene reactant.Type: GrantFiled: May 27, 1993Date of Patent: May 21, 1996Assignee: Amoco CorporationInventors: Philip O. Nubel, Vahid Bagheri
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Patent number: 5512635Abstract: This invention relates to a process for preparation of non-crosslinked linear monofunctional and telechelic difunctional unsaturated polymers wherein the functional groups are reactive terminal groups other than vinyl groups. The average functionality number of the monofunctional unsaturated polymers is at least 0.7, as determined by nuclear magnetic resonance spectroscopy (NMR). The average functionality number of the telechelic difunctional polymers is at least 1.7, as determined by NMR. Monofunctional olefins and difunctional olefins are reacted with cyclic olefins or unsaturated polymers to prepare difunctional polymers. The process is substantially free of side reactions comprising double bond migration and cyclization.Type: GrantFiled: December 15, 1993Date of Patent: April 30, 1996Assignee: Amoco CorporationInventors: Philip O. Nubel, Howard B. Yokelson, Steven A. Cohen, Raymond T. Behrends, William G. Bouslog, James P. Nelson
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Patent number: 5468819Abstract: A single component ionic catalyst consists essentially of an organonickel complex cation, and a weakly coordinating neutral counteranion. The cation is a neutral bidentate ligand removably attached to a Group VIII transition metal in an organometal complex. The ligand is easily displaced by a norbornene-type (NB-type) monomer in an insertion reaction which results in an unexpectedly facile addition polymerization. A NB-type monomer includes NB or substituted NB, or a multi-ringed cycloolefin having more than three rings in which one or more of the rings has a structure derived from NB, and a ring may have an alicyclic alkyl, alkylene or alkylidene substituent. The insertion reaction results in the formation of a unique propagating species more soluble in a polar than in a non-polar solvent and devoid of an available .beta.-hydrogen for termination. The ensuing propagation of a polymer chain proceeds without measurable unsaturation.Type: GrantFiled: November 16, 1993Date of Patent: November 21, 1995Assignee: The B.F. Goodrich CompanyInventors: Brian L. Goodall, George M. Benedikt, Lester H. McIntosh, III, Dennis A. Barnes
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Patent number: 5463002Abstract: A halogenated aluminum-based cocatalyst provides a metathesis catalyst system with high activity, moisture insensitivity, and long pot lives. The cocatalyst can be employed in solution or in in-mold bulk polymerization processes.Type: GrantFiled: September 28, 1992Date of Patent: October 31, 1995Assignee: Nippon Zeon Co., Ltd.Inventors: Tomoo Sugawara, Shingo Kudo, Kin-ichi Okumura
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Patent number: 5403904Abstract: A process is disclosed for preparation of telechelic difunctional unsaturated oligomers and polymers having at least one internal carbon-to-carbon double bond wherein the functional groups are terminal reactive groups. The reactants are acyclic polyenes with terminal carbon-to-carbon double bonds and olefins with at least one functional group. The polymerization process is substantially free of side reactions comprising double bond migration and cyclization. The telechelic difunctional unsaturated oligomers and polymers have a functionality of about 2 and are suitable for preparation of block copolymers, ion exchange resins, adhesives, and flocculants and for further functionalization.Type: GrantFiled: May 27, 1993Date of Patent: April 4, 1995Assignee: Amoco CorporationInventors: Philip O. Nubel, Robert B. Morland, Howard B. Yokelson
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Patent number: 5399634Abstract: Disclosed is a catalyst system for the homopolymerization and copolymerization of alpha-olefins having 2-8 carbon atoms, said catalyst system comprising a cyclopentadienyl Group 6b metal compound having at least one oxo, thio, imido or phosphido group bonded directly to the Group 6b metal, and at least one organic radical bonded to the Group 6b metal through a carbon atom, said Group 6b metal compound being supported on an inorganic support. The catalyst system may also contain a Group 2 or Group 3 metal alkyl compound cocatalyst.Type: GrantFiled: June 13, 1994Date of Patent: March 21, 1995Assignee: Chevron Chemical CompanyInventors: Michael J. Carney, David L. Beach
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Patent number: 5391658Abstract: A process for increasing the molecular weight of cycloolefin monomers is provided by this invention which can be incorporated into ring-opening polymerization methods. This method is particularly suited for bulk polymerization processes but can also be used for solution polymerization processes. By increasing the molecular weight of the cycloolefin monomers, polymers having higher glass transition temperatures are obtained.Type: GrantFiled: January 25, 1989Date of Patent: February 21, 1995Assignee: B. F. Goodrich CompanyInventors: Parley C. Lane, Linwood P. Tenney, George M. Benedikt, Paul T. Stricharczuk
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Patent number: 5319042Abstract: This invention relates to a two component catalyst system for the polymerization of metathesis polymerizable cycloolefins, comprising (a) a tungsten compound of the formula WOX.sub.4-x (OAr).sub.x where X is chlorine, bromine or fluorine, Ar is a hindered phenyl ring having 1-5 specified substituents and x = 1, 2 or 3; and (b) an activator compound.Among the preferred molecules or groups that are substituted on the phenyl ring of the tungsten compound are phenyl, chlorine, bromine, methoxy and isopropyl groups. Ar can also represent a multi-substituted phenyl group such as 2,4-dichloro-6-methylphenyl.Type: GrantFiled: October 18, 1991Date of Patent: June 7, 1994Assignee: Hercules IncorporatedInventor: Andrew Bell
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Patent number: RE35717Abstract: A cycloolefin copolymerization method, feed composition and product made from the feed which includes: a nonpolar cycloolefin, a polar cycloolefin and a catalyst. Preferably, the nonpolar cycloolefin is dicyclopentadiene, the catalyst comprises WCl.sub.6, the polar cycloolefin is an ester, and the composition also includes an activator.Type: GrantFiled: September 17, 1993Date of Patent: January 20, 1998Assignee: Metton America, Inc.Inventor: Steven H. Nahm