Utilizing Hydrocarbon Containing Unsaturation Not Part Of Benzene Ring Patents (Class 502/108)
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Publication number: 20030171208Abstract: The present invention relates to a catalytic component for the polymerization of olefins combining a number of catalytic components for the polymerization of olefins and to a process for preparing it. The catalytic component according to the invention is obtained by impregnation of a prepolymer with a solution of a catalytic component for the polymerization of olefins. The invention brings about control of the combination of different catalytic components and provides for improvement in the control of the quality of the polymers manufactured by virtue of the catalytic action of the combined catalytic components. Another advantage of the invention is to be able to control the morphology and the particle size distribution of the polymers by choosing the morphology of a single catalytic component. The prepolymer and the polymer obtained from the catalytic component according to the invention are also subjects of the present invention.Type: ApplicationFiled: March 6, 2003Publication date: September 11, 2003Inventor: Jean Malinge
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Patent number: 6605563Abstract: A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefin(s) utilizing the catalyst systems described herein.Type: GrantFiled: February 6, 2003Date of Patent: August 12, 2003Assignee: Univation Technologies, LLCInventors: Sun-Chueh Kao, Jaimes Sher, Frederick J. Karol
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Publication number: 20030149202Abstract: A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefin(s) utilizing the catalyst systems described herein.Type: ApplicationFiled: February 6, 2003Publication date: August 7, 2003Inventors: Sun-Chueh Kao, Jaimes Sher, Frederick J. Karol
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Publication number: 20030105252Abstract: A solid particulate metallocene-containing catalyst system is produced by combining an alkenyl substituted indenyl (t-butylamido)dimethyl silane titanium dichloride half sandwich metallocene in which the alkenyl substituent on the indenyl has terminal olefinic unsaturation and 5 to 6 carbon atoms with a suitable cocatalyst in a liquid and conducting prepolymerization of at least one olefin, optionally in multiple steps, to produce a prepolymerized solid catalyst, and separating the resulting solid from the liquid and the components dissolved in the liquid, said solid being the inventive solid particulate metallocene catalyst system. The use of the solid particulate catalyst in the polymerization of olefins is also disclosed.Type: ApplicationFiled: October 31, 2001Publication date: June 5, 2003Inventors: Alexander Reb, Helmut G. Alt, M. Bruce Welch
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Publication number: 20030104927Abstract: A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of an unsaturated hydrocarbon passivating compound.Type: ApplicationFiled: September 12, 2002Publication date: June 5, 2003Inventors: Richard A. Hall, Jerome A. Streeky, Roger Uhrhammer
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Patent number: 6552137Abstract: A polymerization catalyst system and a method for preparing the catalyst system is disclosed. The catalyst system includes a bulky ligand metallocene catalyst compound, preferably containing a single cyclopentadienyl or substituted cyclopentadienyl-type ring system, a Group 13 element containing first modifier, and a cycloalkadiene second modifier. The present invention also provides a process for polymerizing olefin(s) utilizing the catalyst systems described herein.Type: GrantFiled: November 16, 2000Date of Patent: April 22, 2003Assignee: Univation Technologies, LLCInventors: Sun-Chueh Kao, Jaimes Sher, Frederick J. Karol
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Patent number: 6551955Abstract: Described are solid olefin polymerization catalysts that have, inter alia, very high productivities as shown by a standard test procedure for measuring this property or characteristic, and excellent morphology. Such particulate catalysts can be prepared by prepolymerizing a controlled amount of vinylolefin with a Group 4 metallocene-aluminoxane solution, in which the original metallocene ingredient used in the process has in its molecular structure at least one polymerizable olefinic substituent. These particulate catalysts do not contain, and thus are not produced in the presence of, a preformed support such as an inorganic compound (silica or etc.) or a preformed particulate polymeric support.Type: GrantFiled: June 16, 2000Date of Patent: April 22, 2003Assignee: Albemarle CorporationInventor: Steven P. Diefenbach
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Patent number: 6551956Abstract: The present invention relates to a catalytic composition for the polymerization of olefins combining a number of catalytic components for the polymerization of olefins and to a process for preparing it. The catalytic component according to the invention is obtained by impregnation of a prepolymer with a solution of a catalytic component for the polymerization of olefins. The invention brings about control of the combination of different catalytic components and provides for improvement in the control of the quality of the polymers manufactured by virtue of the catalytic action of the combined catalytic components.Type: GrantFiled: October 17, 1997Date of Patent: April 22, 2003Assignee: Elf AtochemInventor: Jean Malinge
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Publication number: 20030069127Abstract: A modified particle obtained by contacting the following (a), the following (b), the following (c) and a particle (d) with one another,Type: ApplicationFiled: August 26, 2002Publication date: April 10, 2003Inventors: Kazuo Takaoki, Takuya Ogane, Hideki Oshima, Yasuki Fujiwara, Kenichiro Yada, Masatada Tasaka
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Patent number: 6541411Abstract: The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams.Type: GrantFiled: November 27, 2001Date of Patent: April 1, 2003Assignee: Bayer AktiengesellschaftInventors: Andreas Hoffmann, Hartmut Nefzger, Erika Bauer
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Patent number: 6534609Abstract: Methods are disclosed for preparing a highly active solid metallocene-containing catalyst system and its use in the polymerization of olefins. The catalyst system is prepared by creating a catalyst system solution by combining an aluminoxane with a metallocene having a substituent which has olefinic unsaturation in an aliphatic liquid to form a liquid catalyst system, conducting prepolymerization of an olefin in the liquid catalyst system, preferably in multiple stages, and separating the resulting solid metallocene-containing catalyst system from the reaction mixture. Also polymerization of olefins using the inventive solid catalyst system is disclosed.Type: GrantFiled: March 13, 2001Date of Patent: March 18, 2003Assignee: Chevron Phillips Chemical Company LPInventors: Kent E. Mitchell, Gary L. Glass, L. Matthew Kirchman, Robert K. Provence, Leigh A. Ford, Randall S. Muninger
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Publication number: 20030040427Abstract: Catalyst components for the preparation of ethylene (co)polymers capable to produce polymers with high bulk density, to avoid the problems of formation of fines and that have a high activity are provided. Said catalyst components are characterized by comprising a non-stereospecific solid catalyst component, comprising a titanium compound and a magnesium dihalide, which is pre-polymerized with an alpha olefin CH2═CHR1 wherein R is a C1-C8 alkyl group, to such an extent that the amount of the &agr;-olefin pre-polymer is up to 100 g per g of said solid catalyst component.Type: ApplicationFiled: January 8, 2002Publication date: February 27, 2003Inventors: Mario Sacchetti, Diego Brita, Gianni Collina
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Patent number: 6521728Abstract: Described are solid olefin polymerization catalysts that have, inter alia, very high productivities (at least 18,000 grams of polyethylene per gram of catalyst in one hour) as shown by a standard test procedure for measuring this property or characteristic. Such particulate catalysts can be prepared by prepolymerizing &agr;-olefin with a Group 4 metallocene-aluminoxane solution, using proportions of &agr;-olefin (most preferably, ethylene) in the range of about 150 to about 1500, and preferably in the range of about 175 to about 1000, moles per mole of Group 4 metallocene used in forming the solution. The atom ratio of aluminum to Group 4 metal in the solution is in the range of about 150:1 to about 1500:1, and preferably in the range of about 175:1 to about 1000:1. In addition, the Group 4 metallocene ingredient used in forming these highly productive catalysts has in its molecular structure at least one polymerizable olefinic substituent.Type: GrantFiled: May 16, 2000Date of Patent: February 18, 2003Assignee: Albemarle CorporationInventor: Steven P. Diefenbach
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Patent number: 6518214Abstract: This invention discloses a process for making dilithium initiators in high purity. This process can be conducted in the absence of amines which is desirable since amines can act as modifiers for anionic polymerizations. The dilithium compounds made are highly desirable because they are soluble in aromatic solvents. The present invention more specifically discloses a process for synthesizing a dilithium initiator which comprises reacting disopropenylbenzene with a tertiary alkyl lithium compound in an aromatic solvent at a temperature which is within the range of about 0° C. to about 100° C. The present invention further discloses a process for synthesizing m-di-(1-methyl-3,3-dimethylbutyllithio)benzene which comprises reacting diisopropenylbenzene with tertiary-butyllithium in an aromatic solvent at a temperature which is within the range of about 0° C. to about 100° C.Type: GrantFiled: May 25, 2001Date of Patent: February 11, 2003Assignee: The Goodyear Tire & Rubber CompanyInventors: Adel Farhan Halasa, Wen-Liang Hsu
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Publication number: 20020177676Abstract: Methods are disclosed for preparing a highly active solid metallocene-containing catalyst system and its use in the polymerization of olefins. The catalyst system is prepared by creating a catalyst system solution by combining an aluminoxane with a metallocene having a substituent which has olefinic unsaturation in an aliphatic liquid to form a liquid catalyst system, conducting prepolymerization of an olefin in the liquid catalyst system, preferably in multiple stages, and separating the resulting solid metallocene-containing catalyst system from the reaction mixture. Also polymerization of olefins using the inventive solid catalyst system is disclosed.Type: ApplicationFiled: March 13, 2001Publication date: November 28, 2002Inventors: Kent E. Mitchell, Gary L. Glass, L. Matthew Kirchman, Robert K. Provence, Leigh A. Ford, Randall S. Muninger
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Patent number: 6482967Abstract: Metallocenes having a 9-fluorenyl group and another cyclic dienyl group connected by a single carbon having a terminally unsaturated hydrocarbyl substituent wherein the 9-fluorenyl group has a hydrocarbyl substituent in the 4 position, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.Type: GrantFiled: August 7, 2001Date of Patent: November 19, 2002Assignee: Phillips Petroleum CompanyInventors: Alexander Köppl, Helmut G. Alt, M. Bruce Welch
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Patent number: 6482764Abstract: A method for producing a supported catalyst useful in polymerization of ethylene and copolymerization of ethylene and &agr;-olefin is disclosed. The method includes treating the magnesium-containing carrier with a titanium compound containing oxygen atom(s), wherein said carrier is obtained by reaction of an organomagnesium compound of the structure of MgPh2.nMgCl2.mR2O (n=0.37˜0.7; m≧1; R20=ether; Ph=phenyl) with an organic chloride compound in a mole ratio of organic chloride compound/Mg≧0.5, at −20˜80° C. In one embodiment, the organic chloride compound may be carbon tetrachloride. A specific catalyst is provided whose activity is low in the beginning but slowly rises to a sufficient degree as the process of polymerization progresses, the polymer produced with the use of said catalyst having high bulk density, a well adjusted particle size distribution, and a narrow molecular weight distribution.Type: GrantFiled: April 16, 1999Date of Patent: November 19, 2002Assignee: Samsung General Chemicals Co., Ltd.Inventors: Ho-Sik Chang, Youn-Kyung Kang, Vladimir Alexandrovich Zakharov, Valentin Evgenievich Nikitin
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Patent number: 6458904Abstract: A catalyst composition suitable for the (co)polymerization of alk-1-enes is obtainable by mixing a metallocene complex with a C3-C20-alk-1-ene in an inert solvent, reacting the resulting mixture in a controlled manner with a compound capable of forming metallocenium ions and diluting the resulting mixture with an inert nonpolar, essentially aliphatic solvent, and also, if desired, applying the catalyst composition to a particulate support material.Type: GrantFiled: February 17, 2000Date of Patent: October 1, 2002Assignee: BASELL Polyolefine GmbHInventors: Andrei Gonioukh, Andreas Deckers, Eckard Schauss, Roger Klimesch, Wilhelm Weber
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Patent number: 6455649Abstract: A catalyst comprising an organoaluminum compound and a vanadium chelate compound having the lability to cause olefins to undergo living coordination polymerization is contacted with a terminal diolefin to obtain a catalyst for living polymer production. When the above contact is:conducted in the presence of a cycloolefin or an internal olefin, the yield of a living polymer can be improved. By modifying all ends of the living polymer obtained, a telechelic olefin polymer is obtained in which all the polymer chains are modified with functional groups.Type: GrantFiled: March 3, 2000Date of Patent: September 24, 2002Assignees: Japan as represented by Director General of Agency of Industrial Science and Technology, Japan Chemical Innovation InstituteInventors: Yoshihumi Fukui, Masahide Murata, Kazuo Soga, Michihiko Asai, Yasuzou Suzuki, Akira Miyazawa, Kenji Tsuchihara, Hiroyuki Ozaki, Masanao Kawabe, Naoya Kishi
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Publication number: 20020107143Abstract: The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed orthoesters of titanium and/or zirconium, with one or more polyalcohols. Suitable polyalcohols comprise those compounds having at least two hydroxyl groups and a number average molecular weight of at least 180 g/mol. The invention also relates to a process for preparing (poly)esters from these novel catalysts, which exhibit little discoloration and are suitable to be used as a reaction component in the preparation of polyurethane (PUR) foams.Type: ApplicationFiled: November 27, 2001Publication date: August 8, 2002Inventors: Andreas Hoffmann, Hartmut Nefzger, Erika Bauer
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Patent number: 6426314Abstract: There has been invented a codeposition process for fabricating hydrogen scavengers. First, a &pgr;-bonded allylic organometallic complex is prepared by reacting an allylic transition metal halide with an organic ligand complexed with an alkali metal; and then, in a second step, a vapor of the &pgr;-bonded allylic organometallic complex is combined with the vapor of an acetylenic compound, irradiated with UV light, and codeposited on a substrate.Type: GrantFiled: May 31, 2001Date of Patent: July 30, 2002Assignee: The Regents of the University of CaliforniaInventors: David W. Carroll, Kenneth V. Salazar, Mitchell Trkula, Cynthia W. Sandoval
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Patent number: 6413901Abstract: A catalyst composition for alpha olefin polymerization is provided. The catalyst composition is prepared by a process including treating PVC containing particles with an organomagnesium compound in an inert solvent, contacting the treated PVC containing particles with a transition metal compound from the group TiCl4, VCl4 or ZrCl4, in the absence of an electron donor, and activating the product particles with a cocatalyst. An organoaluminum compound can also be mixed with the organomagnesium compound prior to treating the PVC containing particles.Type: GrantFiled: June 9, 2000Date of Patent: July 2, 2002Assignee: Saudi Basic Industries CorporationInventors: Akhlaq Moman, Atieh Abu-Raqabah, Navin Nallaveerapan
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Patent number: 6413489Abstract: The present invention relates to a method of producing particles having a particle size of less than 100 nm and surface areas of at least 20 m2/g where the particles are free from agglomeration. The method involves synthesizing the particles within an emulsion having a 1-40% water content to form reverse micelles. In particular, the particles formed are metal oxide particles. The particles can be used to oxidize hydrocarbons, particularly methane.Type: GrantFiled: April 15, 1998Date of Patent: July 2, 2002Assignee: Massachusetts Institute of TechnologyInventors: Jackie Y. Ying, Andrey Zarur
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Patent number: 6403739Abstract: Catalytic component for the polymerization of ethylene with propylene prepared by: a) impregnation of an inert support with a solution of a compound of Vanadium having an oxidation state of between 3 and 5; b) subsequent treatment with a solution of a compound having general formula (I) RnAlXm wherein R is a C1-C20 alkyl radical, X is a halogen, n+m=3, and m is an integer between 0 and 2, the molar ratio between Aluminium in step (b) and Vanadium in step (a) being from 1/1 to 6/1.Type: GrantFiled: November 14, 1995Date of Patent: June 11, 2002Assignee: Enichem Elastomeri SrlInventors: Tiziano Tanaglia, Gianni Loberti
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Patent number: 6383969Abstract: Disclosed is for the preparation of a catalytic composition for the polymerization of alpha-olefins. The catalyst comprises a compound of a transition metal (i) of Groups 4 to 6 of the Periodic Table, containing at least one possibly substituted cyclopentadiene ligand, and an activator (ii) chosen from aluminoxanes and ionizing agents supported on a support (iii) consisting of porous particles of polyolefin(s). Preparation includes a preliminary polymerization which includes contact with an alpha-olefin, under polymerizing conditions, in a diluent whose kinematic viscosity, measured at 20° C., is from 3 to 3000 cSt (centistokes) from 3 to 3000 mm2/s, such as mineral oil which may be derived from coal tars and petroleum fractions, to form from 0.01 to 50 g of polyolefin per g of catalyst containing compounds (i), (ii) and (iii).Type: GrantFiled: December 21, 1999Date of Patent: May 7, 2002Assignee: Solvay Polyolefins Europe - BelgiumInventors: Philippe Francois, Serge Bettonville, Dominique Marchand
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Publication number: 20020028892Abstract: A prepolymerization catalyst for use in a gas phase polymerization of an olefin or combinations of olefins which comprises (A) a solid catalyst component comprising magnesium, halogen, titanium and an electron donor and having a weight-average particle diameter of 15 to 45 &mgr;m, (B) at least one organoaluminum compound and (C) a prepolymer of an ethylene and/or at least one &agr;-olefin, wherein the molar ratio of aluminum to titanium in the prepolymerization catalyst (Al/Ti ratio) is 3 to 11 (mol/mol), the weight ratio of the prepolymerization catalyst to the solid catalyst component (prepolymerization catalyst/solid catalyst component) is 2 to 35 (g/g), the content of volatile materials (VM) in the prepolymerization catalyst is 2.0% by weight or less, and the intrinsic viscosity [&eegr;] measured in tetralin at 135° C. is 2.0 dl/g or less, and a process for a production thereof.Type: ApplicationFiled: March 30, 2001Publication date: March 7, 2002Inventors: Tomoaki Goto, Kazuki Wakamatsu, Shinichi Kumamoto
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Patent number: 6350714Abstract: The present invention relates to a process for preparing a catalyst by activating a catalytic composition which comprises a) at least one metal of group IB or IIB or a compound thereof, b) where appropriate a carrier which comprises treating the composition with an alkyne of the general formula I R1—C≡C—R2 (I) in which R1 is alkyl, cycloalkyl, aryl, hydroxyalkyl, haloalkyl, alkoxy or alkoxyalkyl, R2 is a hydrogen atom, alkyl, cycloalkyl or aryl, and a carbonyl compound of the general formula II in which R3 and R4 are, independently of one another, a hydrogen atom, alkyl, haloalkyl, cycloalkyl or aryl, to catalysts obtainable by this process, and to alkynylations and aminoalkylations employing these catalysts.Type: GrantFiled: May 31, 2000Date of Patent: February 26, 2002Assignee: BASF AktiengesellschaftInventors: Arnd Böttcher, Jochem Henkelmann, Thomas Preiss, Melanie Brunner
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Publication number: 20020010078Abstract: A catalyst which is useful in slurry or gas phase olefin polymerizations and which is prepared by depositing a combination of an organometallic complex of a group 4 metal and a so-called ionic activator on a metal oxide support. The organometallic complex is characterized by being unbridged and by having a cyclopentadienyl ligand, a phosphinimine ligand and an activatable ligand. The “ionic activator” (for example, triphenylcarbenium tetrakis (pentafluorophenyl) boron) is co-deposited with the organometallic complex. The metal oxide support is pre-treated with, for example, an aluminum alkyl in an amount which is at least equivalent to the molar concentration of surface hydroxyls on the support.Type: ApplicationFiled: April 4, 2001Publication date: January 24, 2002Applicant: NOVA CHEMICAL (INTERNATIONAL) S.A.Inventors: Dusan Jeremic, Stephen John Brown, Ian McKay
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Patent number: 6335405Abstract: Catalysts for olefin polymerization comprising (a) a compound of a transition metal of Groups 8 to 10 of the Periodic Table, (b) clay, a clay mineral or an ion-exchanging layered compound, (c) a silane compound, and optionally (d) an organic aluminium compound and/or (e) an alkylating agent, and those comprising (a) a compound of a transition metal of Groups 8 to 10 of the Periodic Table, (b) clay, a clay mineral or an ion-exchanging layered compound, (d) an organic aluminium compounds and optionally (e) an alkylating agent have high activity, though not containing a large amount of aluminoxane. Using the catalysts, high-quality olefin polymers with good morphology are produced efficiently. The amount of the residual metal to remain in the polymers produced is small.Type: GrantFiled: December 13, 1999Date of Patent: January 1, 2002Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Fumio Okuda, Haruhito Sato, Toshiya Abiko
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Publication number: 20010053831Abstract: A polypropylene composition comprising 0.001 to 10 parts by weight of a polyethylene having an intrinsic viscosity [&eegr;E] of 0.01 to less than 15 dl/g s measured in tetralin at 135° C. and 100 parts by weight of a polyolefin comprising at least polypropylene, wherein the polyethylene is finely dispersed as particles with a number average particle diameter of, e.g., 1 to 5000 nm in the polyolefin comprising at least polypropylene. By virtue of the above constitution, the polypropylene composition has excellent transparency and rigidity, is free from the creation of a sweeper roll flow mark in the preparation of a film and substantially free from a neck-in phenomenon of a film, and has high productivity.Type: ApplicationFiled: January 11, 1999Publication date: December 20, 2001Inventors: KATSUHIKO OHNO, MASAMI KIMURA, TAKETO HIROSE, YOSHITAKA MORIMOTO, JUN SAITO
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Publication number: 20010053742Abstract: A process is provided to modify an olefin production catalyst system which comprises contacting an olefin production catalyst system with ethylene prior to use. A second embodiment of the invention comprises contacting an aluminum alkyl and a pyrrole-containing compound prior to contacting a chromium containing compound and prior to contacting an olefin. A process also is provided to trimerize and/or oligomerize olefins with the novel, modified olefin catalyst production systems. These modified olefin production catalyst systems can produce less solids, such as, for example, polymer, during a trimerization reaction.Type: ApplicationFiled: December 18, 1998Publication date: December 20, 2001Inventors: RONALD D. KNUDSEN, JEFFREY W. FREEMAN
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Patent number: 6294496Abstract: Described are solid olefin polymerization catalysts that have, inter alia, very high productivities (at least 18,000 grams of polyethylene per gram of catalyst in one hour) as shown by a standard test procedure for measuring this property or characteristic. Such particulate catalysts can be prepared by prepolymerizing vinylolefin with a Group 4 metallocene-aluminoxane solution, using proportions of vinylolefin (most preferably, ethylene) in the range of about 150 to about 1500, and preferably in the range of about 175 to about 1000, moles per mole of Group 4 metallocene used in forming the solution. The atom ratio of aluminum to Group 4 metal in the solution is in the range of about 150:1 to about 1500:1, and preferably in the range of about 175:1 to about 1000:1. In addition, the Group 4 metallocene ingredient used in forming these highly productive catalysts has in its molecular structure at least one polymerizable olefinic substituent.Type: GrantFiled: May 16, 2000Date of Patent: September 25, 2001Assignee: Albemarle CorporationInventor: Steven P. Diefenbach
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Patent number: 6291382Abstract: Metallocenes having a 9-fluorenyl group and another cyclic dienyl group connected by a single carbon having a terminally unsaturated hydrocarbyl substituent wherein the 9-fluorenyl group has a hydrocarbyl substituent in the 4 position, olefin polymerization catalyst systems prepared therefrom, and the use of such catalyst systems are disclosed.Type: GrantFiled: May 24, 1999Date of Patent: September 18, 2001Assignee: Phillips Petroleum CompanyInventors: Alexander Köppl, Helmut G. Alt, M. Bruce Welch
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Patent number: 6255247Abstract: This invention is for a process for the polymerization of propylene to a minimum level of xylene solubles by use of the molar ratio of co-catalyst to external electron donor (selectivity control agent). Using a conventional supported heterogeneous Ziegler-Natta catalyst component with an trialkyl aluminum co-catalyst and an cycloalkylalkyldialkoxysilane external electron nor (selectivity control agent) in a Al/Si molar ratio of about results in the minimum amount of xylene solubles.Type: GrantFiled: July 13, 1999Date of Patent: July 3, 2001Assignee: Fina Technology, Inc.Inventors: Edwar Shoukri Shamshoum, David John Rauscher
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Publication number: 20010004657Abstract: An olefin (co-)polymer composition including 0.01 to 5.0 weight parts of high molecular weight polyethylene which is an ethylene homopolymer or an ethylene-olefin copolymer containing 50 weight % or more of an ethylene polymerization unit; and 100 weight parts of an olefin (co-)polymer other than the high molecular weight polyethylene, wherein said high molecular weight polyethylene has an intrinsic viscosity [&eegr;E] of 15 to 100 dl/g measured in tetralin at 135° C. or more, and said high molecular weight polyethylene exists as dispersed fine particles having a numerical average particle size of 1 to 5000 nm.Type: ApplicationFiled: September 14, 1998Publication date: June 21, 2001Applicant: CHISSO CORPORATIONInventors: JUN SAITO, HIDEO NOBUHARA, SHINGO KIKUKAWA, HITOSHI SATO, AKIRA YAMAUCHI
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Patent number: 6239060Abstract: The present invention provides a new type of supported metallocene catalyst system. In one aspect of the invention, an inorganic oxide support, such as silica, is impregnated with a Group XIII element such as B, Al or GA. The support is then contacted with a liquid catalyst system prepared by combining in a liquid an organo aluminoxane and a metallocene having two cyclopetadienyl-type ligands selected from substituted or unsubstituted cyclopentadienyl, indenyl, benzoindenyl, tetrahdroindenyl, benzofluorenyl, octahydrofluorenyl, and fluorenyl ligands to form a supported metallocene catalyst system. In preferred embodiments the process further includes conducting prepolymerization of at least one olefin in the presence of the supported metallocene catalyst system to produce a prepolymerized metallocene catalyst system. The prepolymerized metallocene catalyst system prepared in this manner yields substantially increased activity for the polymerization of olefins.Type: GrantFiled: December 31, 1998Date of Patent: May 29, 2001Assignee: Phillips Petroleum CompanyInventors: David W. Dockter, Bryan E. Hauger, M. Bruce Welch, Randall S. Muninger
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Patent number: 6235854Abstract: The invention provides a process for preparing a solid titanium catalyst component for use in the preparation of an olefin polymerization catalyst, which comprises: (1) a step wherein a suspension is prepared which contains a solid material prepared by contacting a magnesium compound with a first titanium compound and having a polybasic carboxylic acid ester supported thereon; (2) a step wherein the solid material is separated from the suspension; and (3) a step wherein the solid material is contacted with a second titanium compound under heating; wherein while the solid material is separated from the suspension in the step (2) and the solid material is supplied to the step (3), the solid material is maintained at a temperature in the range of 70-130° C.Type: GrantFiled: June 10, 1997Date of Patent: May 22, 2001Assignee: Mitsui Chemicals, Inc.Inventors: Mamoru Kioka, Shinichi Kojo, Tsuneo Yashiki
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Patent number: 6228791Abstract: The present invention is a solid catalyst component for polymerization of olefins prepared by contacting a magnesium compound, a tetravalent halogen-containing titanium compound, a diester of an aromatic dicarboxylic acid, an aromatic hydrocarbon and an organic aluminum compound containing a hydroxyl group represented by the following general formula (R1CO2)mAl(OH)3-m or aluminum hydroxide. The catalyst for polymerization of olefins comprising said solid catalyst component, an organic aluminum compound represented by the general formula R2pAlQ3-p and an organic silicon compound represented by the general formula R3qSi(OR4)4-q can retard the rate of forming a polymer having a low molecular weight or a low stereoregular polymer which is soluble in a polymerization solvent in slurry polymerization and can obtain a high stereoregular polymer in a high yield, and also can obtain a copolymer having an excellent property in a high yield in the copolymerization of olefins.Type: GrantFiled: July 6, 1999Date of Patent: May 8, 2001Assignee: Toho Titanium Co., Ltd.Inventors: Takuo Kataoka, Masayoshi Saito, Isa Nishiyama
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Patent number: 6218330Abstract: A process for the preparation of supported metallocene-alumoxane catalysts comprising the steps of: a) reacting a metallocene with an alumoxane at a temperature comprised between 15 and 50° C., b) recovering a mixture comprising an alkylmetallocenium cation and an anionic alumoxane oligomer, c) reacting said mixture with a support, and d) recovering a supported metallocene-alumoxane catalyst as a dry solid, the reaction with the support being carried out at a temperature comprised between 85° C. and 110° C., preferably between 90 and 130° C., and their use for the polymerization or copolymerization of olefins.Type: GrantFiled: April 21, 1999Date of Patent: April 17, 2001Assignee: Fina Research, S. A.Inventors: Abbas Razavi, Guy Debras
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Patent number: 6184170Abstract: This invention relates generally to metallocene catalyst systems and to methods for their production and use. Specifically, this invention relates to a method for preparing metallocene catalyst systems using olefin additives which promote catalyst activity.Type: GrantFiled: May 5, 2000Date of Patent: February 6, 2001Assignee: Exxon Chemical Patents, Inc.Inventor: Main Chang
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Patent number: 6136742Abstract: This invention relates to metallocene catalyst systems and to methods for their production and use. Specifically, this invention relates to catalyst promoters which increase the activity of the metallocene catalyst systems. The promoters can be, for example, styrene or substituted styrene in one embodiment. The metallocene catalyst systems can be used, for example, to make olefins. The catalyst systems of this invention can be supported.Type: GrantFiled: May 22, 1997Date of Patent: October 24, 2000Assignee: Exxon Chemical Patents, Inc.Inventor: Main Chang
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Patent number: 6136743Abstract: The invention provides catalysts which have a high polymerization activity, enable the obtaining of olefin polymers of wide molecular weight distribution, and which comprise (a)(a-1) a metallocene compound or (a-2) a titanium catalyst component containing magnesium, titanium, and halogen, (b) a compound of a transition metal from Groups 8 to 10 of the periodic table and is of the general formula shown below, and a cocatalyst component. ##STR1## The invention also provides olefin polymer compositions excellent in rigidity and impact resistance which can be produced using a catalyst comprising the transition metal compound (b) and which comprises a non-crystalline olefin polymer having a specific intrinsic viscosity, glass transition temperature and density, and another known olefin polymer.Type: GrantFiled: October 7, 1998Date of Patent: October 24, 2000Assignee: Mitsui Chemicals, INC.Inventors: Kenji Sugimura, Kiyotaka Yorozu, Yasuhiko Suzuki, Tetsuo Hayashi, Shin-ya Matsunaga
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Patent number: 6124231Abstract: The present invention relates to a supported composition, to processes for its preparation and to its use for polymerizing olefins. The supported catalyst composition comprises at least one transition metal compound of subgroup 3, 4 or 5 of the ##STR1## Periodic Table of the Elements and at least one cocatalyst having the formula II in which R.sup.6 independently at each occurrence are a halogen atom or a C.sub.1 -C.sub.40 carbon-containing group, X is independently at each occurrence a C.sub.1 -C.sub.40 carbon containing group, M.sup.Type: GrantFiled: August 12, 1997Date of Patent: September 26, 2000Assignee: Targor GmbHInventors: Cornelia Fritze, Frank Kuber, Hans Bohnen
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Patent number: 6124229Abstract: Disclosed is a process for preparing a supported metallocene catalyst by introducing, in a first stage, a gas stream comprising an organoaluminum compound, an inert support material and water, into a first gas phase reactor; allowing the mixture to react under conditions effective to form an aluminoxane supported on said inert support material; metering a second gas stream comprising a metallocene into said gas phase reactor; allowing said mixture to react under conditions effective to form a supported metallocene catalyst; and drying, in a second stage, said supported metallocene catalyst, wherein said drying is carried out in a gas phase reactor.Type: GrantFiled: August 22, 1996Date of Patent: September 26, 2000Assignee: Witco GmbHInventors: Ralf-Jurgen Becker, Rainer Rieger
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Patent number: 6117957Abstract: A process for polymerization of olefins having increased molecular weight and melting point uses a catalyst formed by combining a chiral, stereorigid metallocene compound with an organoaluminum compound. The metallocene compound has a silicon hydrocarbyl radical as an interannular bridge between two cyclopentadienyl or substituted cyclopentadienyl rings which are coordinated with a metal which is bonded to a hydrocarbon radical or a halogen. The cyclopentadienyl rings are described by the formula (C.sub.5 R'.sub.m) wherein R' is hydrogen or hydrocarbyl radical having from 1-20 carbon atoms, each R' being the same or different. The metal is a group 4b, 5b or 6b metal as designated in the Periodic Table of Elements.Type: GrantFiled: March 5, 1997Date of Patent: September 12, 2000Assignee: Fina Technology, Inc.Inventor: John A. Ewen
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Patent number: 6114276Abstract: A heterogeneous catalyst system comprising a novel titanium catalyst component, the product of a sequential reaction of titanium halide with carbodiimide compound and an organometallic aluminum compound, supported on such an inorganic carrier as magnesium halide and an organometallic aluminum cocatalyst component which is not methylaluminoxane, and a process for polymerization of olefin using the said catalyst system. The catalyst system has an excellent (co)polymerization properties and produces copolymers having a narrow compositional distribution, a broad molecular weight distribution and excellent morphological properties such as spherical shape and a high bulk density.Type: GrantFiled: September 5, 1998Date of Patent: September 5, 2000Assignee: Samsung General Chemicals Co., Ltd.Inventors: Gap-Goung Kong, Gyo-Hyun Hwang
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Patent number: 6100212Abstract: A catalyst composition for the polymerization of olefins is provided, which comprises the reaction product of a spirocycle, a complex of an atom selected from Groups 3-14 and the Lanthanides, and an activating cocatalyst.Type: GrantFiled: June 30, 1998Date of Patent: August 8, 2000Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventor: Timothy Todd Wenzel
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Patent number: 6087291Abstract: This invention is generally directed toward a supported catalyst system useful for polymerizing olefins. The method for supporting the catalyst system of the invention provides for a metallocene catalyst and alumoxane activator supported on a porous support using a total volume of catalyst solution that is less than that of which a slurry is formed. The metallocene and alumoxane aer mixed in solution, then the solution is added to a porous support in a volume between the total pore volume of the support and the volume at which a slurry forms. The solvent is then removed, leaving an activated supported metallocene.Type: GrantFiled: October 24, 1997Date of Patent: July 11, 2000Assignee: Exxon Chemical Patents, Inc.Inventors: Anthony Nicholas Speca, Jeffrey Lawrence Brinen, George Alan Vaughan, Patrick Brant, Terry John Burkhardt
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Patent number: 6077804Abstract: According to the present invention, there are provided a catalyst and a process for the preparation of polyolefins having a relatively wide molecular weight distribution, good particle properties, a narrow composition distribution in copolymerization and a high molecular weight and being less sticky. The catalyst is prepared by contacting the following constituents (1) to (4) with one another:(1) a compound represented by the general formula Me.sup.1 R.sup.1.sub.p (OR.sup.2).sub.q X.sub.4-p-q, where Me.sup.1 is Zr, Ti or Hf, R.sup.1 and R.sup.2 are each independently a hydrocarbon group having 1 to 24 carbon atoms, X is a halogen atom, p and q are each an integer in the ranges of 0.ltoreq.p.ltoreq.4 and 0.ltoreq.q.ltoreq.4 , provided 0.ltoreq.p+q.ltoreq.4;(2) a compound represented by the general formula Me.sup.2 R.sup.3.sub.m (OR.sup.4).sub.n X.sup.2.sub.z-m-n, where Me.sup.2 is a Group I-III element in the Periodic Table, R.sup.3 and R.sup.Type: GrantFiled: May 19, 1997Date of Patent: June 20, 2000Assignee: Nippon Oil Company, LimitedInventors: Yoshio Tajima, Naoki Kataoka, Akira Sano, Kazuo Matsuura
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Patent number: 6071846Abstract: An olefin polymerization catalyst comprising (A) a solid titanium catalyst component containing a magnesium atom, titanium atom, halogen atom and electron donor, in which divalent titanium atom account for not more than 25 atomic % of the whole titanium atom and trivalent titanium atom account for at least 30 atomic % of the whole titanium atom and (B) an organoaluminum compound component having no halogen atom; and an olefin production method which comprises polymerizing an olefin in the presence of the above olefin polymerization catalyst.Type: GrantFiled: April 22, 1996Date of Patent: June 6, 2000Assignee: Tokuyama CorporationInventors: Yoshiyuki Kitajima, Katsufumi Tsuboi, Junichi Ito