At Least One Group Ivb Metal Atom (ti, Zr, Hf) And At Least One Group Vb Meta L (v, Nb, Ta) Patents (Class 526/116)
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Patent number: 6956089Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: February 24, 2003Date of Patent: October 18, 2005Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Patent number: 6943225Abstract: The present invention relates to a multinuclear metallocene catalyst for olefin polymerization and a process for olefin polymerization using the same, in which the multinuclear metallocene catalyst for olefin polymerization comprises, as a main catalyst, a transition metal compound that contains at least two metal atoms in the groups III to X of the periodic table as central metals and a ligand having a cyclopentadienyl structure bridging between the two metal atoms, and, as a cocatalyst, an aluminoxane compound, an organoaluminum compound or a bulky compound reactive to the transition metal compound to impart a catalytic activity to the transition metal compound.Type: GrantFiled: January 28, 2002Date of Patent: September 13, 2005Assignee: Honam Petrochemical CorporationInventors: Min-Hyung Lee, Sung-Jin Park, Seong-Kyun Kim, Young-Jo Kim, Yong-Gyu Han, Young-Kyu Do, Ki-Ho Choi, Seung-Woong Yoon, Bo-Geun Song, Han-Seock Cho
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Patent number: 6936667Abstract: A process to produce a first catalyst composition is provided. The process comprises contacting at least one first organometal compound and at least one activator to produce the first catalyst composition. The activator is selected from the group consisting of aluminoxanes, fluoro-organo borates, and treated solid oxide components in combination with at least one organoaluminum compound. In another embodiment of this invention, a process to produce a second catalyst composition for producing bimodal polymers is provided. The process comprises contacting at least one first organometal compound, at least one activator, and at least one second organometal compound to produce the second catalyst composition. The first and second catalyst compositions are also provided as well as polymerization processes using these compositions to produce polymers.Type: GrantFiled: January 21, 2003Date of Patent: August 30, 2005Assignee: Phillips Petroleum CompanyInventors: Michael D. Jensen, Max P. McDaniel, Elizabeth A. Benham, Anthony P. Eaton, Joel L. Martin, Gil R. Hawley, Tony R. Crain, Martha J. Tanner
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Patent number: 6933353Abstract: A method for preparing a supported organometallic complex is disclosed. An organometallic complex is combined with a support material that has been treated with an organozinc compound. The organometallic complex comprises a Group 3 to 10 transition metal and an indenoindolyl ligand that is bonded to the transition metal. Also disclosed is a process for polymerizing an olefin using the supported complex. Organozinc treatment of the support unexpectedly boosts catalyst activity and polyolefin molecular weight.Type: GrantFiled: July 7, 2003Date of Patent: August 23, 2005Assignee: Equistar Chemicals, LPInventor: Shaotian Wang
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Patent number: 6924342Abstract: A polymerization process comprises contacting one or more olefinic comonomers in the presence of at least a high molecular weight catalyst and at least a low molecular weight catalyst in a single reactor, and effectuating the polymerization of the olefinic comonomers in the reactor to obtain an olefin polymer. Preferably, both catalysts have the ability to incorporate a substantially similar amount of comonomers in the olefin polymer. The polymers produced by the process may have a relatively higher level of long chain branching while maintaining a relatively narrow molecular weight distribution, i.e., MWD less than about 6. These interpolymers may exhibit processability similar to or better than LDPE but have physical properties similar to metallocene catalyzed polymers.Type: GrantFiled: March 15, 2002Date of Patent: August 2, 2005Assignee: Dow Global Technologies Inc.Inventors: James C. Stevens, Daniel D. VanderLende
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Patent number: 6900281Abstract: A gas-phase olefin polymerization process in a plug flow reactor uses a catalyst system containing a magnesium halide supported titanium-containing component, an organoaluminum component, and at least one external electron donor component; in the process a first external donor component is added to the reactor at an injection point axially near an injection point for the supported transition metal containing component, and at least a second external donor component is added to the reactor axially downstream from the injection point for the first external donor component.Type: GrantFiled: December 19, 2002Date of Patent: May 31, 2005Inventors: Jerome A. Streeky, David A. Kreider, Chi-Hung Lin, Mark G. Reichmann
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Patent number: 6897273Abstract: This invention relates to a process to polymerize olefin(s) comprising combining a solution, slurry or solid comprising one or more bulky ligand metallocene catalyst compounds, an optional support, and or one or more activator(s) with a solution comprising one or more phenoxide catalyst compounds, and thereafter, introducing one or more olefin(s) and the combination into a polymerization reactor. This invention also relates to a polymer of ethylene wherein the polymer has a density of 0.910 to 0.930 g/cc, a melt index of 0.3 to 2.0 dg/min, and a 15 to 35 ?m thick film of the polymer has a 45° gloss of 60 or more, a haze of 7% or less, and a dart impact of 600 g or more.Type: GrantFiled: December 4, 2000Date of Patent: May 24, 2005Assignee: Univation Technologies, LLCInventors: John F. Szul, Tae Hoon Kwalk, David James Schreck, Simon Mawson, Matthew G. McKee, Kersten Anne Terry, Mark G. Goode, Gregory T. Whiteker, Eric A. Lucas
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Patent number: 6894128Abstract: Catalyst compositions and methods useful in polymerization processes utilizing at least two metal compounds are disclosed. At least one of the metal compounds is a Group 15 containing metal compound and the other metal compound is preferably a bulky ligand metallocene-type catalyst. The invention also discloses a new polyolefin, generally polyethylene, particularly a multimodal polymer and more specifically, a bimodal polymer, and its use in various end-use applications such as film, molding and pipe. The Group 15 containing metal compound is represented in one embodiment by the formulae: wherein M is a Group 4, 5, or 6 metal; each X is independently a leaving group; y is 0 or 1; n is the oxidation state of M; m is the formal change of the ligand comprising the YZL or YZL? groups; L is a Group 15 or 16 element; L? is a Group 15 or 16 element or Group 14 containing group; Y is a Group 15 element; Z is a Group 15 element; and the other groups are as defined herein.Type: GrantFiled: August 5, 2003Date of Patent: May 17, 2005Assignee: Univation Technologies, LLCInventors: Donald R. Loveday, David H. McConville, John F. Szul, Kersten Anne Erickson, Simon Mawson, Tae Hoon Kwack, Frederick J. Karol, David James Schreck
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Patent number: 6891001Abstract: A process for preparing and controlling the density of high density polyethylene in the gas phase comprising contacting ethylene or a mixture of ethylene and one or more alpha-olefins with a chromium oxide catalyst supported on a granular or microspherical refractory oxide in a fluidized bed reactor in the presence of oxygen.Type: GrantFiled: March 29, 2001Date of Patent: May 10, 2005Assignee: BP Chemicals LimitedInventor: Jean-Jacques Kuhlburger
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Patent number: 6855655Abstract: A supported catalyst composition comprising the reaction product of i) a magnesium halide, ii) a solvent, iii) an electron donor compound, iv) and a transition metal compound; an inert support; and a cocatalyst composition wherein the supported catalyst is substantially free of other alcohols and wherein the molar ratio of the first alcohol to magnesium is less than or equal to 1.9. Methods of making supported catalyst compositions and methods of making polymers with supported catalysts.Type: GrantFiled: July 15, 2002Date of Patent: February 15, 2005Assignee: Univation Technologies, LLCInventors: Burkhard Eric Wagner, Michael D. Awe
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Patent number: 6846886Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: February 24, 2003Date of Patent: January 25, 2005Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Patent number: 6838533Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises contacting an organometal compound, an organoaluminum compound, and a solid, wherein said solid is selected from the group consisting of titanium tetrafluoride, zirconium tetrafluoride, and a treated solid oxide compound.Type: GrantFiled: May 23, 2003Date of Patent: January 4, 2005Assignee: Philips Petroleum CompanyInventors: Max P. McDaniel, Marvin M. Johnson, Bruce B. Randolph, Kathy S. Collins, Elizabeth A. Benham, Michael D. Jensen, Gil R. Hawley, Joel L. Martin
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Patent number: 6805955Abstract: In a process for producing fine monofilaments having improved abrasion resistance from a polypropylene having a melt flow index (MFI)230° C./2.16 kg of 2-16 g/10 min at a linear density of 5-20 dtex (0.027 mm-0.053 mm), a compound consisting of 80 to 99.9% by weight of chips and 20 to 0.1% by weight of an additive is added to the extruder, the melt is spun at a speed of at least 1200 m/min, the fiber is cooled in an air bath at room temperature, supplementarily stretched at a temperature of 110-150° C. to a linear density of 5-20 dtex and wound up. The monofilaments comprising a polypropylene having a melt flow index (MFI) 230° C./2.16 kg of 2-16 g/10 min, having improved abrasion resistance, and a linear density of 5-20 dtex (0.027 mm-0.053 mm) and an abrasion resistance score ≦2.Type: GrantFiled: March 15, 2004Date of Patent: October 19, 2004Assignee: Rhodia Industrial Yarns AGInventors: Gustav Schütze, Max Kurt
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Publication number: 20040186251Abstract: The invention provides ethylene/&agr;-olefin copolymers exhibiting improved environmental stress cracking resistance properties, and methods for the production of the copolymers in a single reactor by means of a bimetallic catalyst including a Ziegler component and a metallocene component.Type: ApplicationFiled: May 12, 2004Publication date: September 23, 2004Inventors: David Bruce Barry, Gary M Diamond, Hitesh A Fruitwala, Shih-May Christine Ong, Chunming Wang
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Patent number: 6784263Abstract: A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or a mixture of organoaluminum compounds to provide a catalyst composition useful for olefin polymerization, e.g., to produce linear low, medium and high density polyethylenes or copolymerization of ethylene with alpha-olefins. Product polyolefin polymers have a varied range of molecular weight distributions. The catalyst composition is prepared by a process comprising combining polymer support particles, magnesium compound, transition metal-containing metallocene compound, and non-cyclopentadienyl transition metal compound to provide a solid catalyst component, and, combining the solid catalyst component with a cocatalyst compound to provide a polyolefin polymerization catalyst composition.Type: GrantFiled: January 18, 2002Date of Patent: August 31, 2004Assignee: Saudi Basic Industries CorporationInventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah
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Patent number: 6774078Abstract: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system includes an organometallic complex that incorporates a Group 3 to 10 transition metal and an annulated cyclopentadienyl ligand that is pi-bonded to the metal. A one-pot method for making organometallic complexes from fulvene precursors is also disclosed. Additionally, the invention includes bimetallic complexes from cyclopentazulenyl compounds and a one-pot method for making them. Molecular modeling studies reveal that organometallic complexes incorporating such annulated cyclopentadienyl ligands, when combined with an activator such as MAO, should actively polymerize olefins.Type: GrantFiled: April 23, 2003Date of Patent: August 10, 2004Assignee: Equistar Chemicals, LPInventors: Sandor Nagy, Barbara M. Tsuie, Jonathan L. Schuchardt
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Publication number: 20040143077Abstract: The new metallocene catalysts according to the present invention are prepared by reacting a metallocene compound with a compound having at least two functional groups. The metallocene compound is a transition metal compound which a transition metal is coordinated with a main ligand such as cycloalkanedienyl group and an ancillary ligand. The functional groups of the compound having at least two functional groups are selected from the group consisting of a hydroxy group, a thiol group, a primary amine group, a secondary amine group, etc. The metallocene catalysts according to the present invention have a structure which an ancillary ligand of a metallocene compound is bonded with functional groups. A structure of the metallocene catalysts can be varied according to the metallocene compounds, the compound having at least two functional groups, and the molar ratio of each reactant. The metallocene catalyst is employed with a co-catalyst for styrene and olefin polymerization.Type: ApplicationFiled: January 7, 2004Publication date: July 22, 2004Applicant: Samsung General Chemicals Co., Ltd.Inventors: Yi-Yeol Lyu, Jin-Heong Yim
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Patent number: 6723807Abstract: A catalyst obtained by contacting a transition metal compound (A) of the general formula [1]: [LpXoCpjM(N2)nM′XmLl]X′k [1], wherein M and M′ independently represent a transition metal of Group 3 to 10; X independently represents a hydrogen atom, halogen atom, a specific hydrocarbon group or the like; Cp is a cyclopentadienyl group; L represents a group which bonds to M or M′ by lone pair of electrons or a &pgr; electron; X′ represents a counter anion; k, l, m, o and p each independently represent an integer of 0 to 5; j represents an integer of 0 to 2; n+o+p+j≦6; n represents an integer of 1 to 3; and n+l+m≦6, with an organoaluminum, and an aluminoxane and/or boron compound, or with an aluminoxane and/or boron compound, and a process for producing an addition polymerization with the catalyst.Type: GrantFiled: December 20, 2002Date of Patent: April 20, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Masanobu Hidai, Masaaki Nabika
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Patent number: 6706827Abstract: The new metallocene catalysts according to the present invention are prepared by reacting a metallocene compound with a compound having at least two functional groups. The metallocene compound is a transition metal compound which a transition metal is coordinated with a main ligand such as cycloalkanedienyl group and an ancillary ligand. The functional groups of the compound having at least two functional groups are selected from the group consisting of a hydroxy group, a thiol group, a primary amine group, a secondary amine group, etc. The metallocene catalysts according to the present invention have a structure which an ancillary ligand of a metallocene compound is bonded with functional groups. A structure of the metallocene catalysts can be varied according to the metallocene compounds, the compound having at least two functional groups, and the molar ratio of each reactant. The metallocene catalyst is employed with a co-catalyst for styrene and olefin polymerization.Type: GrantFiled: October 31, 2000Date of Patent: March 16, 2004Assignee: Samsung Atofina Co. Ltd.Inventors: Yi-Yeol Lyu, Jin-Heong Yim
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Patent number: 6689847Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: November 27, 2001Date of Patent: February 10, 2004Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Patent number: 6677266Abstract: There are described a process for preparing catalyst components comprising vanadium, titanium, electron donor and magnesium chloride, supported or unsupported; catalyst systems incorporating the catalyst components; and the use of the catalyst systems in olefin polymerizations and interpolymerizations.Type: GrantFiled: July 9, 2002Date of Patent: January 13, 2004Assignee: Eastman Chemical CompanyInventor: Francesco De Rege Thesauro
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Patent number: 6664347Abstract: Modified polybutadiene having a high-cis and low-trans structure with a moderate 1,2-structure content and exhibiting improved characteristics such as cold flow properties, which is obtained by modifying starting polybutadiene having a Tcp/ML1+4 ratio (Tcp: 5% toluene solution viscosity at 25° C.ML1+4: Mooney viscosity at 100° C.) of 2.5 or more in the presence of a transition metal catalyst.Type: GrantFiled: September 5, 2002Date of Patent: December 16, 2003Assignee: Ube Industries, Ltd.Inventors: Michinori Suzuki, Masato Murakami
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Patent number: 6653254Abstract: Provided is a catalyst system for polymerization of monomers having at least one Ziegler-Natta polymerizable bond, comprising: a) a supported Ziegler-Natta transition metal catalyst having a magnesium component modified with a metallocene catalyst component, such that the ratio of magnesium component to metallocene component is within the range of about 1:1 to about 4:1, during its synthesis or production; and b) an effective co-catalyst.Type: GrantFiled: February 22, 1999Date of Patent: November 25, 2003Assignee: Fina Technology, INCInventors: Edwar Shoukri Shamshoum, Hong Chen, Margarito Lopez
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Patent number: 6653416Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided solid oxide compound.Type: GrantFiled: February 28, 2002Date of Patent: November 25, 2003Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6613852Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.Type: GrantFiled: December 21, 2001Date of Patent: September 2, 2003Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6605675Abstract: The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.Type: GrantFiled: December 4, 2000Date of Patent: August 12, 2003Assignee: Univation Technologies, LLCInventors: Simon Mawson, Sun-Chueh Kao, Tae Hoon Kwalk, Timothy Roger Lynn, David H. McConville, Matthew Gary McKee, John Francis Szul, Kersten Anne Terry, Timothy T. Wenzel, Mark Gregory Goode, John Henry Oskam, Robert J. Jorgensen, Robert Harold Vogel
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Publication number: 20030134990Abstract: Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for example substantially-amorphous polyolefins. By introducing a second catalyst capable of producing a powdery polymer into the polymerization system during production of the sticky polymers, these normally sticky, tenacious polymers are rendered into a form which may be processed using conventional means and equipment.Type: ApplicationFiled: December 19, 2002Publication date: July 17, 2003Applicant: Huntsman Polymers CorporationInventor: Lixin Sun
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Patent number: 6593442Abstract: A semicrystalline propylene polymer composition with good suitability for producing biaxially oriented films and prepared by polymerizing propylene, ethylene and/or C4-C18-1-alkenes, where at least 50 mol % of the monomer units present arise from the polymerization of propylene. Also described is the use of the semicrystalline propylene polymer composition for producing films, fibers or moldings, the films, fibers and moldings made from these compositions, biaxially stretched films made from the semicrystalline propylene polymer compositions, and also a method for characterizing the semicrystalline propylene polymer compositions.Type: GrantFiled: December 18, 2000Date of Patent: July 15, 2003Assignee: Basell Polypropylen GmbHInventors: Wolfgang Bidell, Roland Hingmann, Franz Langhauser, Dieter Lilge, Volker Rauschenberger, Günther Schweier, Florian Stricker, Jürgen Suhm
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Publication number: 20030130110Abstract: There are provided:Type: ApplicationFiled: January 21, 2003Publication date: July 10, 2003Inventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
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Patent number: 6573343Abstract: Olefin polymers are prepared in a plurality of polymerization stages, optionally in a plurality of polymerization reactors, in the presence of hydrogen and an olefin polymerization multisite catalyst, preferably a dualsite catalyst, having at least catalytic sites A and B, site A capable of yielding polymers of different molecular weights and differing MFR2 or MFR21 depending on the concentration of hydrogen in the polymerization reactor and site B capable of yielding polymers of certain molecular weight and MFR2 or MFR21 depending on the concentration of hydrogen in the polymerization reactor where the ratio between MFR2 or MFR21 of polymers produced by site B at two different selected hydrogen concentrations is less than ten and the ratio between MFR2 or MFR21 of polymers produced by site A at the same hydrogen concentrations is more than 50.Type: GrantFiled: June 15, 2001Date of Patent: June 3, 2003Assignee: Borealis Technology OyInventor: Arild Follestad
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Patent number: 6548441Abstract: This invention provides a catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises an organometal compound, an organoaluminum compound, and a treated solid oxide compound comprising nickel, a halogen, and a solid oxide compound.Type: GrantFiled: October 27, 1999Date of Patent: April 15, 2003Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6544921Abstract: There are provided: (I) a solid catalyst component (A-1) for olefin polymerization, which is obtained by a process comprising the step of contacting: (a-1) a carrier of carboxyl group-carrying polymer particles having an average particle diameter of from 1 to 300 &mgr;m, and (b) a transition metal compound of the number 4 group of metals in the periodic table of elements; (II) a catalyst for olefin polymerization, which is obtained by a process comprising the step of contacting: (A-1) the above solid catalyst component, and (B) at least one compound selected from the group consisting of an organoaluminum compound and an organoaluminumoxy compound; (III) a process for producing an olefin polymer, which comprises the step of polymerizing an olefin in the presence of the above catalyst; and (IV) a process for producing the above solid catalyst component (A-1), which comprises the step of contacting: (a-1) the above carrier, and (b) the above transition metal compound.Type: GrantFiled: September 13, 2000Date of Patent: April 8, 2003Assignee: Sumitomo Chemical Comapny, LimitedInventors: Tatsuya Miyatake, Masaaki Nabika, Seiki Kiuchi
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Patent number: 6492473Abstract: The invention encompasses a mixed transition metal olefin polymerization catalyst system suitable for the polymerization of olefin monomers comprising one late transition metal catalyst system and at least one different catalyst system selected from the group consisting of late transition metal catalyst systems, transition metal metallocene catalyst systems or Ziegler-Natta catalyst systems. Preferred embodiments include at least one late transition metal catalyst system comprising a Group 9, 10, or 11 metal complex stabilized by a bidentate ligand structure and at least one transition metal metallocene catalyst system comprising a Group 4 metal complex stabilized by at least one ancillary cyclopentadienyl ligand. The polymerization process for olefin monomers comprises contacting one or more olefins with these catalyst systems under polymerization conditions.Type: GrantFiled: August 8, 2000Date of Patent: December 10, 2002Assignee: ExxonMobil Chemical Patents Inc.Inventors: Jo Ann Marie Canich, George Alan Vaughan, Phillip T. Matsunaga, David Edward Gindelberger, Timothy Daniel Shaffer, Kevin Richard Squire
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Patent number: 6482901Abstract: The present invention relates to a chromium/silca-aluminophosphate catalyst, titanated under specific conditions and used for the homopolymerisation or the copolymerisation of ethylene. The polyethylene obtained with this catalyst has a high melt potential and a high shear resistance. The catalyst has a high level of activity.Type: GrantFiled: January 23, 2001Date of Patent: November 19, 2002Assignee: Fina Research, S.A.Inventor: Guy L Debras
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Publication number: 20020165085Abstract: A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or a mixture of organoaluminum compounds to provide a catalyst composition useful for olefin polymerization, e.g., to produce linear low, medium and high density polyethylenes or copolymerization of ethylene with alpha-olefins. Product polyolefin polymers have a varied range of molecular weight distributions.Type: ApplicationFiled: January 18, 2002Publication date: November 7, 2002Applicant: Saudi Basic Industries CorporationInventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah
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Patent number: 6465386Abstract: A polymerization catalyst comprising (1) a catalyst having a compound of the Formula (I): (2) a further catalyst for the polymerization of 1-olefins which is different from catalyst (1).Type: GrantFiled: October 18, 2000Date of Patent: October 15, 2002Assignee: BP Chemicals LimitedInventors: Peter James Maddox, Stephen Roy Partington
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Patent number: 6462149Abstract: Bimodal resin products are produced in a single reactor by using two bicomponent catalyst compositions, each having a high molecular weight and a low molecular weight component, in different ratios. The HMW/LMW split of the final resin product is controlled accurately by controlling the ratio of the feed of the two bicomponent catalyst compositions. Bimodal or polymodal effects are also achieved for properties or characteristics other than molecular weight. More complex results can be achieved with more than two components. The invention is applicable to a wide variety of polymer products, particularly polyolefins and polyethylene.Type: GrantFiled: September 22, 2000Date of Patent: October 8, 2002Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Michael W. Tilston, Vinayak Maheshwari, Mark Bradley Davis
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Patent number: 6461994Abstract: The present invention relates to transition metal complex compounds, to polymerization catalysts based thereon and to their use in the polymerization and copolymerization of olefins.Type: GrantFiled: October 30, 2000Date of Patent: October 8, 2002Assignee: BP Chemicals LimitedInventors: Vernon Charles Gibson, Brian Stephen Kimberley, Peter James Maddox, Sergio Mastroianni
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Patent number: 6451933Abstract: A bimetallic olefin polymerization catalyst is described. The catalyst comprises an organometallic compound, and optionally, an activator. The organometallic compound comprises a Group 3-5 transition or lanthanide metal, M1, a Group 6-10 transition metal, M2, and a multidentate ligand characterized by a cyclopentadienyl group that is covalently linked to two Group 15 atoms, wherein the cyclopentadienyl group is &pgr;-bonded to M1 and the two Group 15 atoms are coordinated to M2. The bimetallic catalyst is useful for producing copolymers from ethylene without using a co-monomer by oligomerizing ethylene and simultaneously polymerizing ethylene and the co-formed oligomer.Type: GrantFiled: November 16, 2000Date of Patent: September 17, 2002Assignee: Equistar Chemicals, LPInventor: Sandor Nagy
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Publication number: 20020128401Abstract: A solid self-supported cycloalkadienyl catalyst component is disclosed that includes: (i) a mixed metal alkoxide complex which is the reaction product of a magnesium alkoxide or aryloxide and at least one group IVB metal-containing alkoxide or aryloxide; and (ii) Cp, where Cp is a cyclic or polycyclic hydrocarbon having from 3-30 carbon atoms. A self-supported hybrid catalyst also is disclosed which contains the above components (i) and (ii), as well as (iii) a Ziegler-Natta catalyst species. A method of making the self-supported cycloalkadienyl catalyst and the self-supported hybrid catalyst and a method of polymerizing olefins using the catalysts also are disclosed. The catalysts are capable of producing polyolefins in high yield having a broad molecular weight distribution, or a bimodal distribution.Type: ApplicationFiled: December 28, 1999Publication date: September 12, 2002Inventors: ROBERT CHARLES JOB, WALTER THOMAS REICHLE
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Patent number: 6448356Abstract: An ethylene-&agr;-olefin copolymer which is a copolymer of ethylene with a C3-20 &agr;-olefin and which satisfies the following conditions (a) to (c): (a) the density (D) is from 0.850 to 0.950 g/cm3, (b) the relation between the melt tension (MT) and the melt flow rate (MFR) at 190° C. satisfies the following formula (1): log(MT)≧−0.91×log(MFR)+0.06 (1), and (c) the following three formulae (2), (3) and (4) are satisfied: Tmax≦972D−813 (2) logW60≦−0.114 Tmax+9.48 (3) logW90≧0.0394 Tmax−2.95 (4) where D is the density, Tmax is the elution peak temperature (°C.) by the cross fractionation measurement, W60 is the weight percentage (wt %) of a soluble content at 60° C. or lower, and W90 is the weight percentage (wt %) of a soluble content at 90° C. or higher.Type: GrantFiled: August 20, 2001Date of Patent: September 10, 2002Assignee: Mitsubishi Chemical CorporationInventors: Yumito Uehara, Yoshiyuki Ishihama, Yukitaka Goto
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Patent number: 6444605Abstract: A solid self-supported cycloalkadienyl catalyst component is disclosed that includes: (i) a mixed metal alkoxide complex which is the reaction product of a magnesium alkoxide or aryloxide and at least one group IVB metal-containing alkoxide or aryloxide; and (ii) Cp, where Cp is a cyclic or polycyclic hydrocarbon having from 3-30 carbon atoms. A self-supported hybrid catalyst also is disclosed which contains the above components (i) and (ii), as well as (iii) a Ziegler-Natta catalyst species. A method of making the self-supported cycloalkadienyl catalyst and the self-supported hybrid catalyst and a method of polymerizing olefins using the catalysts also are disclosed. The catalysts are capable of producing polyolefins in high yield having a broad molecular weight distribution, or a bimodal distribution.Type: GrantFiled: December 28, 1999Date of Patent: September 3, 2002Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Robert Charles Job, Walter Thomas Reichle
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Patent number: 6417244Abstract: Metal oxide and metal oxide-silica nanoparticles are disclosed wherein the surfaces thereof are complexed with a polymerizable, biocompatible, heterocyclic base. Polymerizable compositions are prepared by loading such nanoparticles into acrylate based monomer matrices, which compositions can then be photocured into X-ray opaque, transparent or translucent solids. Methods are disclosed for forming such complexed nanoparticles and compositions and for using such compositions as medical or dental restoratives.Type: GrantFiled: October 13, 2000Date of Patent: July 9, 2002Assignees: Southwest Research Institute, Board of Regents, The University of Texas SystemInventors: Stephen T. Wellinghoff, Hong Dixon, Henry R. Rawls, Barry K. Norling
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Patent number: 6403738Abstract: Various olefins may be polymerized using a catalyst systems containing selected &agr;-diimine, urethane or urea ligands, some of them novel, complexed to nickel, palladium or other selected transition metals. The polymers are useful as molding resins and elastomers.Type: GrantFiled: July 28, 1999Date of Patent: June 11, 2002Assignee: E. I. du Pont de Nemours and CompanyInventors: Lynda Kaye Johnson, Lissa Taka Jennings Nelson
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Patent number: 6403520Abstract: A solid catalyst component comprises a transition metal-containing metallocene compound, a non-cyclopentadienyl transition metal compound, a magnesium compound and a polymeric material which acts as a support. The catalyst component is combined with co-catalyst organoaluminum compound or a mixture of organoaluminum compounds to provide a catalyst composition useful for olefin polymerization, e.g., to produce linear low, medium and high density polyethylenes or copolymerization of ethylene with alpha-olefins. Product polyolefin polymers have a varied range of molecular weight distributions. The catalyst composition is prepared by a process comprising combining polymer support particles, magnesium compound, transition metal-containing metallocene compound, and non-cyclopentadienyl transition metal compound to provide a solid catalyst component, and, combining the solid catalyst component with a cocatalyst compound to provide a polyolefin polymerization catalyst composition.Type: GrantFiled: September 17, 1999Date of Patent: June 11, 2002Assignee: Saudi Basic Industries CorporationInventors: Orass Hamed, Akhlaq Moman, Atieh Abu-Raqabah
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Patent number: 6395666Abstract: This invention provides catalyst composition for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises as organometal compound, as organoaluminum compound, and a fluorided solid oxide compound.Type: GrantFiled: September 29, 1999Date of Patent: May 28, 2002Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, James L. Smith, Elizabeth A. Benham, Marvin M. Johnson, Anthony P. Eaton, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6380327Abstract: 1,4-Cyclohexadienes and triarylmethanes are chain transfer agents for certain late transition metal complex catalyzed polymerizations of olefins.Type: GrantFiled: November 7, 2000Date of Patent: April 30, 2002Assignee: E. I. du Pont de Nemours and CompanyInventor: Mark F Teasley
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Patent number: 6355594Abstract: This invention provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer. This invention also provides catalyst compositions that are useful for polymerizing at least one monomer to produce a polymer, wherein said catalyst composition comprises a post-contacted organometal compound, a post-contacted organoaluminum compound, and a post-contacted fluorided silica-alumina.Type: GrantFiled: September 27, 1999Date of Patent: March 12, 2002Assignee: Phillips Petroleum CompanyInventors: Max P. McDaniel, Kathy S. Collins, Anthony P. Eaton, Elizabeth A. Benham, Michael D. Jensen, Joel L. Martin, Gil R. Hawley
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Patent number: 6353070Abstract: Star polymers obtainable by polymerization of vinylaromatic monomers with a branching monomer unit containing at least two vinylaromatic functional radicals in the presence of a catalyst obtainable from A) a transition-metal complex from sub-group II to VIII, B) a cation-forming agent and C), if desired, an aluminum compound.Type: GrantFiled: February 22, 1999Date of Patent: March 5, 2002Assignee: BASF AktiengesellschaftInventors: Josef Wünsch, Michael Geprägs
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Publication number: 20010047064Abstract: Disclosed herein are methods for producing polymeric materials which are normally tenacious in their character to such degree that their processing by conventional means is not possible, for example substantially-amorphous polyolefins. By introducing a second catalyst capable of producing a powdery polymer into the polymerization system during production of the sticky polymers, these normally sticky, tenacious polymers are rendered into a form which may be processed using conventional means and equipment.Type: ApplicationFiled: May 17, 2001Publication date: November 29, 2001Applicant: Huntsman Polymers CorporationInventor: Lixin Sun