Non-metal Material Is Organic Nitrogen-containing Compound Patents (Class 526/141)
  • Patent number: 6624107
    Abstract: The present invention relates to a Group 15 containing transition catalyst compound, a catalyst system and a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: September 23, 2003
    Assignee: Univation Technologies, LLC
    Inventors: Timothy T. Wenzel, Thomas Henry Peterson
  • Patent number: 6608152
    Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with a Ziegler-Natta type catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provide is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein. Further provided are novel polyethylenes, and films and articles produced therefrom.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: August 19, 2003
    Assignee: Eastman Chemical Company
    Inventors: Randal Ray Ford, Richard Kingsley Stuart, Jr.
  • Publication number: 20030120005
    Abstract: The invention is a two part composition useful for initiating cure of one or more polymerizable monomers which cure when exposed to free radicals comprising in one part an organoboraneamine complex and in a second part an isocyanate which is capable of decomplexing the organoborane complex wherein the ratio of amine nitrogen atoms to boron atoms is greater than 4.0:1.0.
    Type: Application
    Filed: October 30, 2001
    Publication date: June 26, 2003
    Inventors: Steven P. Webb, Mark F. Sonnenschein
  • Publication number: 20030119662
    Abstract: This invention is based upon the unexpected discovery that certain catalyst systems which are comprised of (A) a transition metal compound selected from the group consisting of iron (II) compounds, iron (III) compounds, cobalt (II) compounds, cobalt (III) compounds, and nickel (II) compounds; (B) a ligand selected from the group consisting of certain azopyridines and certain iminopyridines; and (C) methylalumoxane can be used to catalyze the polymerization of diene monomers, such as 1,3-butadiene and isoprene, into polymers, such as high cis-1,4-polybutadiene rubber. Some representative examples of azopyridines that can be utilized in the catalyst systems of this invention include 2-phenylazopyridine, 4-methyl-2-phenylazopyridine, and 2,6-diphenylazopyridine. The subject invention more specifically discloses a process for synthesizing a polybutadiene rubber which comprises polymerizing 1,3-butadiene at a temperature which is within the range of about 10° C. to about 100° C.
    Type: Application
    Filed: November 11, 2002
    Publication date: June 26, 2003
    Applicant: The Goodyear Tire & Rubber Company
    Inventors: Michael Lester Kerns, Daniel Edward Bowen, Stephan Rodewald
  • Patent number: 6576724
    Abstract: A catalytic composition for the dimerization, the codimerization or the oligomerization of olefins results from the dissolution of at least one nickel complex that contains a heterocyclic carbene in a liquid mixture that comprises at least one ammonium halide or quaternary phosphonium halide, at least one aluminum halide and optionally at least one organometallic aluminum compound. It is used in a process of dimerization, codimerization or oligomerization of olefins.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: June 10, 2003
    Assignee: Institut Francais du Petrole
    Inventors: Helene Olivier-Bourbigou, Dominique Commereuc, Stephane Harry
  • Patent number: 6576723
    Abstract: A catalyst system which can be used in the polymerization of propylene comprises at least one metallocene as a rac/meso isomer mixture, at least one organoboroaluminum compound, at least one passivated support, at least one Lewis base and, if desired, at least one further organometallic compound.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: June 10, 2003
    Assignee: Basell Polyolefine GmbH
    Inventors: Hans Bohnen, Markus Göres, Cornelia Fritze
  • Patent number: 6573345
    Abstract: The present invention is directed to processes of polymerizing olefin monomers and copolymerizing olefin monomer(s) with functionalized alpha-olefin monomers in the presence of certain late transition metal pyrrolaldimine chelates, especially bidenate or in the presence of a combination of a transition metal in its zero valence and a pyrrolaldimine represented by the formula: wherein each R1, R2, R3, R4, R5, R6, M and L are defined in the specification herein below.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: June 3, 2003
    Assignee: Cryovac, Inc.
    Inventors: Donald Albert Bansleben, Stefan K. Friedrich, Todd Ross Younkin, Robert Howard Grubbs, Chunming Wang, Robert Tan Li
  • Publication number: 20030065113
    Abstract: A catalyst system useful for polymerizing olefins is disclosed. It comprises an activator and an organometallic complex. The complex includes a Group 3-10 transition or lanthanide metal and a 1,3-bis(arylimino)isoindoline or 1,3-bis(heteroarylimino)isoindoline ligand. Activities of the Group 8-10 catalyst systems rival or exceed those of late transition metal bis(imines). The resulting polyolefins typically have high molecular weights, broad molecular weight distributions, and a high degree of crystallinity, which makes them valuable for film applications.
    Type: Application
    Filed: September 6, 2001
    Publication date: April 3, 2003
    Inventors: Jia-Chu Liu, Jonathan L. Schuchardt
  • Publication number: 20030050406
    Abstract: A process for producing a hydrogenated product of a polymer prepared through ring-opening polymerization which comprises a polymerization step of polymerizing a cyclic olefin through ring-opening polymerization in the presence of a polymerization catalyst comprising an organoruthenium compound or an organoosmium compound to prepare a polymer, and a hydrogenation step of adding a hydrogenation catalyst and hydrogen into a polymerization system resulting from the polymerization step to hydrogenate the carbon-carbon double bonds of the polymer prepared through the ring-opening polymerization. When the organoruthenium compound- or organoosmium compound-containing catalyst further comprises a carbene compound, the catalyst exhibits a higher activity for the ring-opening polymerization.
    Type: Application
    Filed: October 7, 2002
    Publication date: March 13, 2003
    Applicant: ZEON CORPORATION
    Inventors: Yasuo Tsunogae, Masato Sakamoto, Masaharu Tokoro, Kazunori Taguchi
  • Patent number: 6518444
    Abstract: A method to synthesize a Group 15 containing metal polymerization catalyst is disclosed. The method includes an efficient high temperature synthesis of Group 15 containing ligands, especially arylamine ligands, for use in preparing polymerization catalysts and catalyst systems.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: February 11, 2003
    Assignee: Univation Technologies, LLC
    Inventors: David H. McConville, Jaimes Sher
  • Patent number: 6511756
    Abstract: 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: Grant
    Filed: April 24, 2000
    Date of Patent: January 28, 2003
    Assignee: Nippon Zeon Co., Ltd.
    Inventors: Kazuyuki Obuchi, Masaharu Tokoro, Teruhiko Suzuki, Hajime Tanisho, Kenji Otoi
  • Patent number: 6482902
    Abstract: The present invention relates to a catalyst system comprising metallocene, cocatalyst, support material and, if desired, further organometallic compounds. The catalyst system can advantageously be used for the polymerization of olefins, where the use of aluminoxanes such as methylaluminoxane (MAO), which usually has to be used in a large excess, as cocatalyst can be dispensed with and a high catalyst activity and good polymer morphology are nevertheless achieved.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 19, 2002
    Assignee: Targor GmbH
    Inventors: Hans Bohnen, Cornelia Fritze
  • Patent number: 6479601
    Abstract: This invention is based upon the unexpected discovery that certain catalyst systems which are comprised of (A) a transition metal compound selected from the group consisting of iron (II) compounds, iron (III) compounds, cobalt (II) compounds, cobalt (III) compounds, and nickel (II) compounds; (B) a ligand selected from the group consisting of certain azopyridines and certain iminopyridines; and (C) methylalumoxane can be used to catalyze the polymerization of diene monomers, such as 1,3-butadiene and isoprene, into polymers, such as high cis-1,4-polybutadiene rubber. Some representative examples of azopyridines that can be utilized in the catalyst systems of this invention include 2-phenylazopyridine, 4-methyl-2-phenylazopyridine, and 2,6-diphenylazopyridine. The subject invention more specifically discloses a process for synthesizing a polybutadiene rubber which comprises polymerizing 1,3-butadiene at a temperature which is within the range of about 10° C. to about 100° C.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: November 12, 2002
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Michael Lester Kerns, Daniel Edward Bowen, III, Stephan Rodewald
  • Patent number: 6476165
    Abstract: An olefin polymerization process is described. The process comprises polymerizing an olefin in the presence of a support, a single-site catalyst, an optional activator, and a fatty amine. The support is chemically treated with an organoboron compound. The single-site catalyst contains a polymerization-stable, heteroatomic ligand. The fatty amine is added directly to the reactor. The combination of pre-treating the support with an organoboron compound and the addition of fatty amine to the process unexpectedly increases catalyst activity.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: November 5, 2002
    Assignee: Equistar Chemicals, LP
    Inventor: Shaotian Wang
  • Patent number: 6462155
    Abstract: The invention provides a catalyst comprising a transition metal compound which has a nitrogen-containing tridentate ligand and of which the transition metal is of Groups 8 to 10 of the Periodic Table, and an organoaluminium compound, the catalyst of the invention has high activity. In the method of using the catalyst for producing polyolefins, of which the advantages are that the catalysts do not require methylaluminoxane which is expensive and difficult to handle, and of which storage stability is poor, and is extremely dangerous. The invention realizes efficient production of polyolefins (especially polyethylene) on an industrial scale.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: October 8, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventor: Fumio Okuda
  • Patent number: 6433111
    Abstract: In a process for preparing a supported catalyst which comprises the following steps: A) reacting an inorganic support material with an organometallic compound I B) reacting the support material obtained as described in A) with a metallocene complex and a compound capable of forming metallocenium ions and C) subsequently reacting the resulting material with an organometallic compound II, the supported catalyst obtained in this way or its precursor is brought into contact with a Lewis base in an amount of from 0.1 to <10 mole per mole of metallocene complex.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: August 13, 2002
    Assignee: Basell Polyolefine GmbH
    Inventors: Marc Oliver Kristen, Heike Gregorius, Ursula Rief
  • Patent number: 6423794
    Abstract: Complexes of certain transition metals with certain phosphorous-nitrogen bidentate ligands are part of all of catalyst systems for the polymerization of ethylene. Under certain polymerization conditions novel, highly branched, homopolyethylenes may be produced.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 23, 2002
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Zhibin Guan
  • Patent number: 6410664
    Abstract: The present invention is directed to processes of polymerization of olefins and copolymerization of olefins and functionalized olefins in the presence of certain late transition metal bidentate salicylaldimine chelates represented by the formula: wherein each of the symbols R, R1, R2, R3, R4, R5, R6, L, M, A, X and z are defined within the specification herein below.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: June 25, 2002
    Assignee: Cryovac, Inc.
    Inventors: Donald Albert Bansleben, Stefan K. Friedrich, Todd Ross Younkin, Robert Howard Grubbs, Chunming Wang, Robert Tan Li
  • Publication number: 20020068803
    Abstract: The present invention relates to a copolymer resin for a photoresist used in far ultraviolet ray such as KrF or ArF, process for preparation thereof, and photoresist comprising the same resin. The copolymer resin according to the present invention is easily prepared by conventional radical polymerization due to the introduction of mono-methyl cis-5-norbonen-endo-2,3-dicarboxylate unit to a structure of norbornene-maleic anhydride copolymer for photoresist. The resin has high transparency at 193 nm wavelength, provides increased etching resistance and settles the problem of offensive odor occurred in the course of copolymer resin synthesis. Further, as the resin composition can be easily controlled due to the molecular structure, the resin can be manufactured in a large scale.
    Type: Application
    Filed: January 22, 2002
    Publication date: June 6, 2002
    Applicant: Hyundai Electronics industries Co., Ltd.
    Inventors: Min Ho Jung, Jae Chang Jung, Cheol Kyu Bok, Ki Ho Baik
  • Publication number: 20020065379
    Abstract: A catalyst precursor having the formula:
    Type: Application
    Filed: October 24, 2001
    Publication date: May 30, 2002
    Inventor: Rex Eugene Murray
  • Patent number: 6395846
    Abstract: The invention relates to high-activity catalysts for olefin polymerization, to efficient methods for producing them, and to efficient methods of using the catalysts for producing high-quality polyolefins. The olefin polymerization with the catalysts does not require a large amount of an organic aluminium compound, and the residual metal in the polyolefins produced is much reduced. The catalysts are characterized by containing a product as prepared by contacting any of clay, a clay mineral and an ion-exchanging layered compound, an organic silane compound, and water with each other, or by containing a silane compound-processed clay.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: May 28, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Haruhito Sato, Masahiko Kuramoto
  • Patent number: 6365688
    Abstract: The invention relates to an organometallic compound comprising a central transition metal atom and a ligand coordinated thereto having a heteroatomic ring structure, characterized in that the ligand includes at least three nitrogen atoms, three of them being bonded to the same carbon atom.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 2, 2002
    Assignee: Borealis Technology Oy
    Inventors: Ove Andell, Janne Maaranen
  • Publication number: 20020035030
    Abstract: The present invention includes novel ligands which may be utilized as part of a catalyst system. A catalyst system of the present invention is a transition metal-ligand complex. In particular, the catalyst system includes a transition metal component and a ligand component comprising a Nitrogen atom and/or functional groups comprising a Nitrogen atom, generally in the form of an imine functional group. In certain embodiments, the ligand component may further comprise a phosphorous atom. Preferred ligand components are bidentate (bind to the transition metal at two or more sites) and include a nitrogen-transition metal bond. The transition metal-ligand complex is generally cationic and associated with a weakly coordinating anion.
    Type: Application
    Filed: February 5, 2001
    Publication date: March 21, 2002
    Inventors: James Allen Ponasik,Jr., Jason Patrick McDevitt, Christopher Moore Killian, Peter Borden Mackenzie, Leslie Shane Moody
  • Publication number: 20020010292
    Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with a Ziegler-Natta type catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provide is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, a Ziegler-Natta catalyst and a compound specified herein. Further provided are novel polyethylenes, and films and articles produced therefrom.
    Type: Application
    Filed: July 27, 2001
    Publication date: January 24, 2002
    Inventors: Randal Ray Ford, Richard Kingsley Stuart
  • Publication number: 20020004566
    Abstract: A novel process for the polymerization of olefins is provided. The process involves contacting at least one olefin with at least one metallocene catalyst in the presence of a specified compound that results in the production of polymeric products having a narrower molecular weight distribution. Also provided is a process for narrowing the molecular weight distribution of a polyolefin comprising contacting an olefin, at least one metallocene catalyst and a compound specified herein. Further provided are novel polyolefins, and films and articles produced therefrom.
    Type: Application
    Filed: August 22, 2001
    Publication date: January 10, 2002
    Inventors: Randal Ray Ford, Richard Kingsley Stuart
  • Patent number: 6333292
    Abstract: Novel compounds are disclosed comprising the skeletal unit depicted in Formula (I) wherein O is oxygen; N is nitrogen; R1 is hydrogen, hydrocarbyl, substituted hydrocarbyl, heterohydrocarbyl or substituted heterohydrocarbyl; R3, R4, R5 and R6 are hydrogen or hydrocarbyl or heterohydrocarbyl groups containing 1 to 10 carbon atoms and the R12 groups are independently selected from hydrogen, hydrocarbyl, substituted hydrocarbyl, heterocarbyl and substituted heterocarbyl; A is carbon or silicon; and r is 1 or more; M is scandium, yttrium, or a Group IV or Group V metal or a lanthanide or actinide; T is the oxidation state of M and is II or greater; X represents a monodentate atom or group covalently or ionically bonded to M; L is a mono- or bidentate molecule datively bound to M, and n is from 0 to 5.
    Type: Grant
    Filed: April 28, 1999
    Date of Patent: December 25, 2001
    Assignee: BP Chemicals Limited
    Inventors: Vernon Charles Gibson, Brian Stephen Kimberley
  • Patent number: 6320005
    Abstract: A catalyst precursor having the formula: AqMLn wherein each A has the formula: M is a metal selected from the group consisting of Group 3 to 13 elements and Lanthanide series elements; each L is a monovalent, bivalent, or trivalent anion; X and Y are each heteroatoms; Cyclo is a cyclic moiety; each R1 is a group containing 1 to 50 atoms selected from the group consisting of hydrogen and Group 13 to 17 elements, and two or more adjacent R1 groups may be joined to form a cyclic moiety; each R2 is a group containing 1 to 50 atoms selected from the group consisting of hydrogen and Group 13 to 17 elements, and two or more adjacent R2 groups may be joined to form a cyclic moiety; Q is a bridging group; each m is independently an integer from 0 to 5; n is an integer from 1 to 4; q is 1 or 2; and when q is 2, the A groups are optionally connected by a bridging group Z is provided. The catalyst precursor may be made by reacting an organometal compound with a heteroatom-containing ligand.
    Type: Grant
    Filed: December 8, 1999
    Date of Patent: November 20, 2001
    Assignee: Union Carbide Chemicals & Plastics Technology Corporation
    Inventor: Rex Eugene Murray
  • Patent number: 6310151
    Abstract: Conjugated diolefins, optionally in combination with other unsaturated compounds which may be copolymerized with the diolefins, are polymerized by performing the polymerization of the diolefins in the presence of catalysts based on cobalt compounds, organoaluminum compounds and modifiers in the presence of aromatic vinyl compounds at temperatures of −30° C. to +80° C. By means of the process according to the invention, it is possible straightforwardly to produce solutions of polydiolefins, such as polybutadiene, having different 1,2 unit contents in aromatic vinyl compounds, which solutions may then, for example, be further processed to yield ABS or HIPS.
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: October 30, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heike Windisch, Werner Obrecht, Gisbert Michels, Norbert Steinhauser
  • Patent number: 6303717
    Abstract: 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: Grant
    Filed: February 3, 1998
    Date of Patent: October 16, 2001
    Assignee: The Penn State Research Foundation University Park PA
    Inventors: Ayusman Sen, Jang Sub Kim, James H. Pawlow, Shahid Murtuza, Smita Kacker, Louis M. Wojcinski, III
  • Publication number: 20010025007
    Abstract: The present invention includes novel ligands which may be utilized as part of a catalyst system. A catalyst system of the present invention is a transition metal—ligand complex. In particular, the catalyst system includes a transition metal component and a ligand component comprising a Nitrogen atom and/or functional groups comprising a Nitrogen atom, generally in the form of an imine functional group. In certain embodiments, the ligand component may further comprise a phosphorous atom. Preferred ligand components are bidentate (bind to the transition metal at two or more sites) and include a nitrogen—transition metal bond. The transition metal—ligand complex is generally cationic and associated with a weakly coordinating anion.
    Type: Application
    Filed: February 9, 2001
    Publication date: September 27, 2001
    Inventors: James Allen Ponasik, Jason Patrick McDevitt, Christopher Moore Killian, Peter Borden Mackenzie, Leslie Shane Moody
  • Patent number: 6265506
    Abstract: A method of preparing generally amorphous copolymers of ethylene and at least one norbornene (NB)-type comonomer. These polymers may be random or alternating, depending on the choice of catalyst and/or the relative ratio of the monomers used. This method comprises polymerizing said monomers in a diluent or in bulk in the presence of a cationic palladium catalyst resulting from reacting a chelating ligand with a palladium (II) compound. The catalysts employed in this invention may be represented by the formula: wherein X and Y each independently is a donor heteroatom selected from P, N, O, S and As or an organic group containing said heteroatoms, and the heteroatoms are bonded to the bridging group A; A is a divalent group selected from an organic group and phosphorus forming together with X, Y and Pd a 4, 5, 6, or 7-membered ring, and preferably a 5-membered ring; R is a hydrocarbyl group; and CA is a weakly coordinating anion.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: July 24, 2001
    Assignee: The B. F. Goodrich Company
    Inventors: Brian Leslie Goodall, Lester Howard McIntosh, III
  • Patent number: 6252021
    Abstract: This invention relates to a process for polymerizing isobutene using a catalytic system comprising a transition metal compound, a benzene derivative compound, and methylaluminoxane, and the catalytic system applied to the polymerization of isobutene, (1) the added benzene derivative compound and methyl aluminoxane to the transition metal species provides higher stability of cation active site so that polyisobutene with a high molecular weight can be produced even at a higher reaction temperature than the conventional cationic polymerization temperature; (2) nonhalogen solvent such as toluene can be employed as a polymerization solvent instead of halogenated solvents such as methyl chloride; and (3) under the stable catalytic system, a final product with a high yield can be ensured for its long-term use.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 26, 2001
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Kwanyoung Lee, Pil Sung Kim, IL Sang Maeng, Jong Mok Kim
  • Patent number: 6245871
    Abstract: Provided are certain transition metal complexes which are useful as catalysts in the polymerization of olefinic monomers. In particular, the invention provides complexes of certain bidentate ligands bonded to Ni, Pd, Co, or Fe, and optionally, one or more neutral Lewis acids, and their use in the polymerization of olefins. Suitable complexes include those of the following structure: wherein M represents the transition metal, and Q, T, L, W, Z, R1,R2 and R10 represent functional groups.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: June 12, 2001
    Assignee: Eastman Chemical Company
    Inventors: Peter Borden Mackenzie, Christopher Moore Killian, Leslie Shane Moody, Jason Patrick McDevitt
  • Patent number: 6239061
    Abstract: Aluminum-phosphinimine complexes function as a component in a catalyst system for the (co)polymerization of ethylene. The inventive catalyst components form a highly productive polymerization system when activated with so-called “ionic activators”. The need for conventional transition metal catalyst metals (such as titanium, hafnium, zirconium or vanadium) is eliminated.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: May 29, 2001
    Assignee: Nova Chemicals (International) S.A.
    Inventors: Qinyan Wang, Xiaoliang Gao, John McMeeking, Wei Xu, Douglas W. Stephan
  • Patent number: 6239062
    Abstract: A constrained geometry single-site olefin polymerization catalyst is described. The catalyst comprises an activator and an organometallic compound that includes a Group 3 to 10 transition or lanthanide metal, M, and a multidentate ligand characterized by an indolyl group that is covalently linked to an amido group, wherein the indolyl group is &pgr;-bonded to M and the amido group is &sgr;-bonded to M. The indolyl-amido ligand is formed from readily available organic compounds and allows easy synthesis of a constrained geometry catalyst system.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 29, 2001
    Assignee: Equistar Chemicals, L.P.
    Inventor: Leonard V. Cribbs
  • Patent number: 6231804
    Abstract: A high molecular weight polyethylene prepared by preliminary polymerization is added at the time of main polymerization of an olefin, for example, propylene, to prepare an olefin (co)polymer composition comprising the above high molecular weight polyethylene finely dispersed as fine particles in the polyolefin, such as polypropylene, and a cross-linked structure is formed in the olefin (co)polymer composition. This process can provide a modified olefin (co)polymer composition improved in the strength in a molten state in terms of melt tension or the like and in crystallization temperature and excellent in moldability such as high-speed producibility, and a molded modified olefin (co)polymer composition excellent in properties such as heat resistance and rigidity.
    Type: Grant
    Filed: October 1, 1999
    Date of Patent: May 15, 2001
    Assignee: Chisso Corporation
    Inventors: Akira Yamauchi, Shingo Kikukawa, Jun Saito, Hitoshi Sato
  • Patent number: 6200925
    Abstract: The present invention provides catalyst systems useful in the polymerization of olefins comprising a transition metal component and a ligand component comprising a Nitrogen atom and/or functional groups comprising a Nitrogen atom, generally in the form of an imine functional group. In certain embodiments, the ligand component may further comprise a phosphorous atom. Preferred ligand components are bidentate (bind to the transition metal at two or more sites) and include a nitrogen-transition metal bond. The transition metal-ligand complex is generally cationic and associated with a weakly coordinating anion. In a preferred embodiment, the catalyst system of the present invention further comprises a Lewis or Bronsted acid complexed with the ligand component of the transition metal-ligand complex.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: March 13, 2001
    Assignee: Eastman Chemical Company
    Inventors: James Allen Ponasik, Jr., Jason Patrick McDevitt, Christopher Moore Killian, Peter Borden Mackenzie, Leslie Shane Moody, Gino Georges Lavoie
  • Patent number: 6184316
    Abstract: A catalyst for the polymerization of vinylaromatic monomers, and particularly styrene, with a high yield and a high syndiotacticity index, comprises the product consisting of the following two components in contact with each other: A) an &eegr;5-cyclopentadienyl complex of titanium; B) an organo-oxygenated compound of aluminum; and contains a sufficient amount of at least one carboxylated product having the following general formula: R—COO—G  (I) wherein R—COO is a carboxylic group comprising the organic radical R having from 1 to 30 carbon atoms, and G represents a hydrogen atom, an aliphatic or aromatic hydrocarbon group having from 1 to 20 carbon atoms or a metal atom, possibly substituted, linked to said carboxylic group.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: February 6, 2001
    Assignee: Enichem S.p.A.
    Inventors: Francesco Masi, Riccardo PO′, Francesco Menconi, Giuseppe Conti, Francesco Ciardelli, Angelina Altomare, Federico Orsini, Roberto Santi, Nicoletta Cardi
  • Patent number: 6177528
    Abstract: Novel aminomethylphosphine ligands have particular substituents on the central carbon atom. Such ligands form coordination complexes that may be catalysts for the polymerization of monomers or other catalytic induced reactions.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: January 23, 2001
    Assignee: Symyx Technologies, Inc.
    Inventors: Anne Marie LaPointe, Anil Guram, Timothy S. Powers, Bernd Jandeleit, Thomas Boussie, Cheryl Lund
  • Patent number: 6140432
    Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported metallocene catalyst which when utilized in a polymerization process substantially reduces reactor fouling and sheeting in a gas or slurry polymerization process.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: October 31, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Agapios Kyriacos Agapiou, Chi-I Kuo, Michael Elroy Muhle, Anthony Nicholas Speca
  • Patent number: 6127301
    Abstract: The present invention provides a novel catalyst system which can be preferably used in the trimerization, oligomerization reaction or polymerization reaction of an olefin, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system. A catalyst system obtained by contacting the following components (A) to (C):(A) a chromium compound,(B) an imine compound, and(C) a metal alkyl compound, and a method for the trimerization, oligomerization or polymerization reaction of an olefin, which comprises using the catalyst system are disclosed.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: October 3, 2000
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Kiyoshi Iwanaga, Mitsuhisa Tamura
  • Patent number: 6127497
    Abstract: The invention encompasses late transition metal catalyst systems and their use in polymerization processes, particularly in solution, 2-phase suspension and super-critical phase polymerization of ethylene-containing polymers. Preferred embodiments include the use of a late transition metal catalyst system comprising a Group 8, 9, 10, or 11 metal complex stabilized by a bidentate ligand structure for polymerization under elevated ethylene pressure, or concentration, conditions.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: October 3, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Phillip T. Matsunaga, Jo Ann Marie Canich, George Alan Vaughan, David Edward Gindelberger, Rinaldo Soria Schiffino, Kevin Richard Squire, Rolf Bodo Temme
  • Patent number: 6124230
    Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported bulky ligand transition metal catalyst which when utilized in a polymerization process substantially reduces the reactor fouling and sheeting in a gas, slurry or liquid pool polymerization process.
    Type: Grant
    Filed: July 13, 1995
    Date of Patent: September 26, 2000
    Assignee: Exxon Chemical Patents, Inc.
    Inventors: Anthony Nicholas Speca, Jeffrey Lawrence Brinen
  • Patent number: 6117955
    Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst of the invention provides for a supported metallocene catalyst which when utilized in a polymerization process substantially reduces reactor fouling and sheeting in a gas or slurry polymerization process.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: September 12, 2000
    Assignee: Exxon Chemical Patents Inc
    Inventors: Agapios Kyriacos Agapiou, Chi-I Kuo, Michael Elroy Muhle, Anthony Nicholas Speca
  • Patent number: 6100214
    Abstract: The described invention provides a low fouling, high particle density polymerization process and an olefin polymerization catalyst composition comprising the reaction product of a) an organic polymeric support i) having a surface area of from about 1 to 10 m.sup.2 /g and ii) functionalized with an acidic proton-containing ammonium salt of a non-coordinating anion, and b) an organometallic transition metal compound having ancillary ligands, at least one labile ligand capable of abstraction by protonation by said ammonium salt and at least one labile ligand into which an olefinic monomer can insert for polymerization. In a preferred embodiment, the polymeric support has a surface area of .ltoreq.10 m.sup.2 /g and is particularly suitable for use with high activity organometallic, transition metal catalyst compounds.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: August 8, 2000
    Assignee: Exxon Chemical Patents Inc.
    Inventors: John F. Walzer, Jr., Anthony J. Dias, Jean M J Frechet, Stephen B. Roscoe
  • Patent number: 6100351
    Abstract: Methods of producing polyolefin polymers by polymerizing an .alpha.-olefin in the presence of a catalyst including a pro-catalyst having a magnesium halide, an aluminum halide, a tetravalent titanium halide, an electron donor, and a silane having the formula R.sub.1 R.sub.2 Si(OR.sub.3) (OR.sub.4), wherein R.sub.1 and R.sub.2 are each an H, C.sub.1-6 alkyl, aryl, C.sub.5-12 cycloalkyl, each of which may be unsubstituted, mono- or di-substituted, and R.sub.3 and R.sub.4 are H, C.sub.1-6 alkyl, or a mono- or di-substituted C.sub.1-6 alkyl, and a co-catalyst comprising an organometallic compound, or reaction products of the pro-catalyst and the co-catalyst, wherein the electron donor is present in an amount sufficient to reduce the stickiness of the resultant polyolefin polymers. Moreover, the polymers produced thereby, and methods of preparing resultant products from the polymers are part of the present invention.
    Type: Grant
    Filed: June 18, 1997
    Date of Patent: August 8, 2000
    Assignee: Huntsman Polymers Corporation
    Inventors: Lixin Sun, George C. Allen, Michael P. Hughes
  • Patent number: 6087461
    Abstract: A process for making silyl endblocked organic polymers of the formula R.sup.1.sub.3 SiM is disclosed which comprises contacting under anhydrous conditions M' monomers and/or oligomers of M' with a silyl cation R.sup.1.sub.3 Si.sup.+ devoid of any siloxane bonds wherein each R.sup.1 independently denotes an optionally substituted hydrocarbon or hydrocarbonoxy group, hydrogen, a halogen or a monovalent siloxane-free silicon-containing group and M is an organic polymer made by the addition polymerisation of ethylenically unsaturated monomers M' of the formula H(R.sup.3)--C.dbd.C--(R.sup.2).sub.2 wherein each R.sup.2 independently denotes an optionally substituted hydrocarbon, hydrogen or a halogen and R.sup.3 denotes a hydrogen or methyl group. Preferably the monomer M' is an olefin.
    Type: Grant
    Filed: June 23, 1998
    Date of Patent: July 11, 2000
    Assignee: Dow Corning Limited
    Inventors: Jean Habimana, Claire Thompson
  • Patent number: 6077806
    Abstract: A catalysis system containing an olefin polymerization catalyst having at least one Group 3 to Group 10 transition metal or one of the Lanthanide series of the Periodic Table and an organic support is homogeneous and has particular applicability in the production of polyolefins having narrow molecular weight distribution. The support of the catalysis system is the reaction product of a silicone and a polyamine. The catalysis system has high thermal stability.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: June 20, 2000
    Assignee: Equistar Chemicals, LP
    Inventors: Leonard V. Cribbs, John A. Tyrell, Sandor Nagy
  • Patent number: 6066705
    Abstract: By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of:(1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure;(2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 35.degree. C. to about 70.degree. C.
    Type: Grant
    Filed: May 2, 1997
    Date of Patent: May 23, 2000
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Nissim Calderon, Kenneth Floyd Castner, Howard Allen Colvin, Joel Muse, Jr.
  • Patent number: 6015841
    Abstract: This invention relates to an initiator system for the polymerization of isoolefins having 4 to 16 carbon atoms, optionally with monomers polymerizable with isoolefins, the system consisting of or one or more aromatic or heteroaromatic, polycyclic hydrocarbons and an aged, organic solution of vanadium tetrachloride, wherein the concentration of the vanadium tetrachloride is 0.01 mmol to 500 mmol per liter of solvent and the molar ratio of aged vanadium tetrachloride to polycyclic hydrocarbons is in the range from 100:1 to 1:100.It is possible by means of the initiator system according to the invention to produce polyisoolefins, in particular butyl rubbers, at relatively high temperatures with only a low gel content and of a sufficiently high molecular weight.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: January 18, 2000
    Assignee: Bayer AG
    Inventors: Gerhard Langstein, Martin Bohnenpoll, Uwe Denninger, Werner Obrecht, Peter Plesch