Al Trialkyl Patents (Class 585/522)
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Patent number: 7199075Abstract: A catalyst for the oligomerization of olefins, especially ethylene contains: at least one nickel complex e.g. Li2 Ni X2 that results from bringing into contact a nickel salt e.g. a nickel carboxylate with a bidentate chelating ligand containing a nitrogen-containing heterocyclic compound with an alcohol e.g. Ha-C(OH)RR?; and at least one hydrocarbylaluminum compound from tris(hydrocarbyl)aluminum compounds, chlorinated or brominated hydrocarbylaluminum compounds or at least one aluminoxane.Type: GrantFiled: May 28, 2003Date of Patent: April 3, 2007Assignee: Institut Francais du PetroleInventors: Fredy Speiser, Pierre Braunstein, Lucien Saussine
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Patent number: 7157612Abstract: A process is provided to stabilize and/or reactivate an olefin production catalyst system which comprises contacting an olefin production catalyst system, either before or after use, with an aromatic compound.Type: GrantFiled: June 18, 2004Date of Patent: January 2, 2007Assignee: Phillips Petroleum CompanyInventors: Warren M. Ewert, William M. Woodard, Harvey D. Hensley, Mark E. Lashier, Glyndal D. Cowan, Jeffrey W. Freeman, Ralph V. Franklin, Ronald D. Knudsen, Richard L. Anderson, Lyle R. Kallenbach, Bruce E. Kreischer
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Patent number: 7126037Abstract: Butene oligomer derivatives having tert-butyl groups as one of the terminal groups, having a repeating unit of the main hydrocarbon chain consisting of 80% by mole or more of —CH2C(CH3)2—, and carrying the other terminal group consisting of 60% by mole or more of 1,4-butanediol type functional groups. These derivatives are useful as macromonomers which can be subjected to polycondensation, polyaddition, etc.Type: GrantFiled: December 19, 2000Date of Patent: October 24, 2006Assignee: Nippon Petrochemicals Co., Lt.Inventors: Tsutomu Takashima, Koji Fujimura, Yuichi Tokumoto
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Patent number: 6930218Abstract: A process for the preparation of low molecular weight linear alpha olefins is disclosed. The process comprises oligomerising ethylene in an inert aliphatic or aromatic solvent in the presence of a catalyst comprising of a first component selected from zirconium alkoxide and zirconium aryloxide and a second component selected from alkyl aluminum halide and/or alkyl aluminum.Type: GrantFiled: August 23, 2001Date of Patent: August 16, 2005Assignee: Indian Petrochemicals Corporation LimitedInventors: Gopal Laxman Tembe, S. Muthukumaru Pillai, M. Ravindranathan
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Patent number: 6858767Abstract: A liquid polyalphaolefin homo- or copolymer, preferably 1-decene, which is substantially amorphous is obtained by a polymerization process employing hydrogen and a particular type of metallocene catalyst. Additionally, liquid polyalphaolefin homo- or copolymer containing from 2 to about 12 carbon atoms possess a unique combination of properties, i.e., low molecular weight (Mw), low polydispersity index (Mw/Mn controllable kinematic viscosity (Kv100), low Iodine Number (I2) and low glass transition temperature (Tg) and are substantially amorphous. The liquid polyalphaolefin homo- or copolymers provided herein are useful for manufacturing a variety of products including lubricating oils in which the polyalphaolefin functions as a viscosity modifier.Type: GrantFiled: August 11, 2000Date of Patent: February 22, 2005Assignee: Uniroyal Chemical Company, Inc.Inventors: Anthony J. DiMaio, John R. Baranski, John G. Bludworth, Daniel J. Gillis
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Patent number: 6743960Abstract: The present invention is related to a method for oligomerizing olefinic monomers under oligomerization conditions to form higher olefins. The novel method comprises contacting a feed comprising the olefinic monomers with a catalyst composition comprising the reaction product of: (a) a compound having a formula selected from the group consisting of M[S2C2(RaRb)]2 and M[S2C6(R1R2R3R4)]2, wherein M is a late transition metal, Ra, Rb, R1, R2, R3 and R4 are independently selected and may be the same or different and are selected from hydrogen, electron-withdrawing groups and unsubstituted and substituted hydrocarbyl groups; and (b) an activating cocatalyst. The improved method advantageously relates to oligomerizing olefinic monomers from feed streams having contaminants, especially sulfur-containing contaminants.Type: GrantFiled: November 30, 2001Date of Patent: June 1, 2004Assignee: ExxonMobil Research and Engineering CompanyInventors: Kun Wang, Edward Ira Stiefel, Abhimanyu Onkar Patil, Stephen Zushma
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Patent number: 6680417Abstract: A process for the production of an oligomer oil by the polymerization of a feedstock containing one or more C3 to C20 1-olefins in the presence of a solid unsupported metallocene- and activator-containing catalyst system which is formed by removing the solvent from a solution of the soluble metallocene- and activator-containing catalyst system.Type: GrantFiled: January 3, 2002Date of Patent: January 20, 2004Assignee: BP Corporation North America Inc.Inventors: Vahid Bagheri, Robert E. Farritor, Randall J. Stolk, Andrew D. Overstreet, David Eisenberg, Frederic Grzeszczak
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Patent number: 6555723Abstract: A manufacturing process for &agr;-olefins using certain iron containing ethylene oligomerization catalysts together with alkylaluminum cocatalysts, in which using a low ratio of Al:Fe in the process results in a lowered formation of undesired polyethylene waxes and polymer. This results in less fouling of the process lines and vessels in the manufacturing plant.Type: GrantFiled: August 3, 2001Date of Patent: April 29, 2003Assignee: E. I. du Pont de Nemours and CompanyInventor: Rinaldo S. Schiffino
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Patent number: 6534691Abstract: An efficient manufacturing process for &agr;-olefins using certain iron containing ethylene oligomerization catalysts, comprises one or more liquid full reactors which are approximately at the bubble point of reacting ethylene, and optionally a final reactor which is at a lower pressure than the first reactor, both operating under other specified conditions. This process minimizes both the capital and operating costs for the plant. The &agr;-olefins produced are useful as monomers for polymers and as chemical intermediates, for example for making detergents.Type: GrantFiled: July 17, 2001Date of Patent: March 18, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: David A. Culver, Rinaldo S. Schiffino, Joel David Citron
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Patent number: 6518384Abstract: Ethylene and/or propylene are polymerized to form highly branched, liquid polymers by contacting ethylene and/or propylene monomer, in the presence of an inert reaction medium, with a catalyst system which comprises (1) an alkyl aluminum component, (2) an aluminum or gallium trihalide component, and, optionally, (3) a Group 4 metallocene dihalide component.Type: GrantFiled: November 1, 2000Date of Patent: February 11, 2003Inventors: Ayusman Sen, Louis M. Wojcinski, II, Shahid Murtuza
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Publication number: 20020183575Abstract: The present invention relates to a solid catalyst component for the polymerization of olefins CH2═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from substituted succinates of a particular formula. Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.Type: ApplicationFiled: October 1, 2001Publication date: December 5, 2002Inventors: Giampiero Morini, Giulio Balbontin, Peter A.A. Klusener
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Publication number: 20020183574Abstract: The invention provides a hydrocarbon conversion process for converting olefins to longer chain hydrocarbons, the process using a catalyst system including a non-nickel transition metal derived catalyst and one or more ionic liquids at a reaction temperature of between 10° C. and 130° C. and a reaction pressure of up to 100 Bar. The hydrocarbon conversion process may be oligomerisation and trimerisation.Type: ApplicationFiled: May 23, 2002Publication date: December 5, 2002Inventors: John Thomas Dixon, Jacobus Johannes Cronje Grove, Alta Ranwell
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Publication number: 20020128532Abstract: A process for preparing very high viscosity polyalphaolefins using an acidic ionic liquid oligomerization catalyst in the absence of an organic diluent and the products formed thereby.Type: ApplicationFiled: February 19, 2002Publication date: September 12, 2002Applicant: Chevron Chemical Company LLCInventors: Kenneth D. Hope, Michael S. Driver, Thomas V. Harris
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Publication number: 20010051758Abstract: The present invention relates to a process for dimerizing lower olefins characterized by the use of a catalyst comprising the following three components: (1) at least one salt or complex of a transition metal belonging to the platinum group of the periodic table, (2) at least one organoaluminum compound and (3) at least one inorganic metallic compound.Type: ApplicationFiled: October 8, 1998Publication date: December 13, 2001Inventors: YUKITOSHI FUKUDA, KEIICHI HASHIMOTO, SHOSHIRO MATSUSHITA
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Publication number: 20010006931Abstract: A catalyst for addition polymerization obtained by contacting (A) an organoaluminum compound, (B) a specific boron compound and (C) a solid inorganic compound, and a process for producing an addition polymer characterized by polymerizing an addition-polymerizable monomer in the presence of the catalyst.Type: ApplicationFiled: December 22, 2000Publication date: July 5, 2001Inventors: Wataru Hirahata, Yoshinori Seki
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Patent number: 6232257Abstract: Ethylene and/or propylene are polymerized to form highly branched, liquid polymers by contacting ethylene and/or propylene monomer, in the presence of an inert reaction medium, with a catalyst system which comprises (1) an alkyl aluminum component, (2) an aluminum or gallium trihalide component, and, optionally, (3) a Group 4 metallocene dihalide component.Type: GrantFiled: March 19, 1999Date of Patent: May 15, 2001Assignee: The Penn State-Research FoundationInventors: Ayusman Sen, Louis M. Wojcinski, II, Shahid Murtuza
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Patent number: 6153807Abstract: A copolymer of ethylene and an alpha-olefin having an ethylene content of from 30 to 90 mole %, a number average molecular weight of from 300 to 30,000 and a molecular weight distribution defined by a Q value (the ratio of the weight average molecular weight to the number average molecular weight of not more than 3 and a Z value (the ratio of the maximum value of the molecular weight to the minimum value of the molecular weight when the molecular weight is measured by gel permeation chromatography) of from 15 to 200. The said copolymer can be produced by a process comprising copolymerizing ethylene with an alpha-olefin in the liquid phase in the presence of a polymerization catalyst composed of a combination of a soluble vanadium compound and an organoaluminum compound in the co-presence of hydrogen, characterized in that(a) the copolymerization is carried out in a continuous manner,(b) the concentration of the vanadium compound in the polymerization system is maintained at 0.Type: GrantFiled: July 14, 1993Date of Patent: November 28, 2000Assignee: Mitsui Chemicals, Inc.Inventors: Hidekuni Oda, Tatuo Kinoshita, Akiyoshi Shimizu
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Patent number: 6150576Abstract: The novel synthetic polyethylene fluids of the present invention are characterized by high viscosity indices (about 94-151 VI), low pour points (about -60 to -10.degree. C.), and a kinematic viscosity of about 6 to 28 cSt KV at 100.degree. C. The product compositions comprise polymers having a molecular weight of from about 300 to 30,000 and a high branching index of 151 to 586 branches per 1000 CH.sub.2 groups, or BI=0.18-0.40, wherein the polymer is substantially free of methyl branches. Highly-branched polyethylene fluids that have less than 5 methyl branches per 1000 CH.sub.2 groups are prepared by polymerizing ethylene in the presence of a catalyst system consisting of [C] and [B], wherein [C] is a catalyst having the empirical formula MX.sub.4 and [B] is a co-catalyst having the empirical formula R.sub.n AlX.sub.3-n, where M is a Group IVB transition metal, X is a halogen anion, R is a C.sub.1 -C.sub.Type: GrantFiled: March 19, 1999Date of Patent: November 21, 2000Assignees: Mobil Oil Corporation, The Pennsylvania UniversityInventors: Zhaozhong Jiang, Gregory S. Long, Shahid Murtuza, Ayusman Sen, Suzanne E. Schramm, Jeffrey C. Trewella
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Patent number: 6127301Abstract: 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: GrantFiled: June 27, 1997Date of Patent: October 3, 2000Assignee: Sumitomo Chemical Company, LimitedInventors: Kiyoshi Iwanaga, Mitsuhisa Tamura
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Patent number: 6103946Abstract: Alpha-olefins are manufactured in high yield and with very high selectivity by contacting ethylene with an iron complex of a selected 2,6-pyridinedicarboxaldehyde bisimine or a selected 2,6-diacylpyridine bisimine, and in some cases a selected activator compound such as an alkyl aluminum compound. Novel bisimines and their iron complexes are also disclosed. The .alpha.-olefins are useful as monomers and chemical intermediates.Type: GrantFiled: January 12, 1998Date of Patent: August 15, 2000Assignees: E. I. du Pont de Nemours and Company, University of North CarolinaInventors: Maurice S. Brookhart, III, Brooke L. Small
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Patent number: 6063973Abstract: The novel synthetic polyethylene fluids of the present invention are characterized by high viscosity indices (about 94-151 VI), low pour points (about -60 to -10.degree. C.), and a kinematic viscosity of about 6 to 28 cSt KV at 100.degree. C. The product compositions comprise polymers having a molecular weight of from about 300 to about 30,000 and a branching index of 151 to 586 branches per 1000 CH.sub.2 groups, or BI=0.18-0.40. A process for preparing such novel synthetic polyethylene fluids comprises polymerizing ethylene in the presence of a catalyst system, said catalyst system comprising [A] and [B], wherein [A] is a catalyst having the formula MX.sub.5 and [B] is a co-catalyst having the formula R.sub.n AlX.sub.3-n where M is a Group VB, VIB, or VIII transition metal; X is a halogen anion; R is a C.sub.1 -C.sub.20 alkyl group; and n is 1-2.Type: GrantFiled: March 19, 1999Date of Patent: May 16, 2000Assignees: Mobil Oil Corporation, The Pennsylvania UniversityInventors: Ayusman Sen, Suzanne E. Schramm, Jeffrey C. Trewella, Zhaozhong Jiang, Gregory S. Long, Shahid Murtuza
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Patent number: 6043401Abstract: Catalysts and processes are described to make low molecular weight, essentially terminally-unsaturated, viscous poly(1-olefin) or copoly(1-olefin) having a high terminal vinylidine content from a feed stock containing one or more 1-olefin and other volatile hydrocarbon liquids using a Ziegler catalyst made from a Group IVb metallocene and an aluminoxane cocatalyst, particularly bis(cyclopentadienyl) and bis(indenyl) titanium(IV), zirconium(IV) or hafnium(IV) compounds and methylaluminoxane. A particularly useful feed stock is a refinery stream containing 1-olefins and isobutylene which is used to make polyisobutylene.Type: GrantFiled: January 15, 1998Date of Patent: March 28, 2000Assignee: BP Amoco CorporationInventors: Vahid Bagheri, Bruce Edward Firth, Frank Calabrese, Robert Scott Hensey
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Patent number: 6002060Abstract: A process for the oligomerization and co-oligomerization of alpha olefins by subjecting olefins to the step of oligomerization in the presence of a supported aluminum chloride catalyst and an organoaluminum compound as a promoter. The catalyst is separated and the reaction product is subjected to the step of fractional distillation for removal of the solvent. The oligomers are further fractionated to obtain poly alpha olefins.Type: GrantFiled: April 22, 1998Date of Patent: December 14, 1999Inventors: Rakesh Sarin, Sabyasachi Sinha Ray, Deepak Kumar Tuli, Madan Mohan Rai, Sobhan Ghosh, Akhilesh Kumar Bhatnagar, Swaminathan Sivaram, Thekke Pangil Mohandas, Dattatraya Haribhau Gholap, Mallinamadugu Jogimarappa Gari Yanjarappa
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Patent number: 5902919Abstract: A supported Lewis acid catalyst, which comprises an inorganic oxide substrate having immobilized thereon at least one Lewis acid and a modifying agent containing at least one functional moiety capable of reacting with surface hydroxyl groups originally present on said substrate and which is effective as a catalyst for hydrocarbon conversion reactions including cationic polymerization, alkylation, isomerization and cracking reactions is disclosed.Type: GrantFiled: June 2, 1998Date of Patent: May 11, 1999Assignee: Exxon Chemical Patents Inc.Inventors: Frank Joung-yei Chen, Christophe Le Deore, Alain Guyot, Alain Louis Pierre Lenack, Jon Edmond Stanat
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Patent number: 5859303Abstract: A process is provided to trimerize or oligomerize olefins in the presence of an olefin oligomerization catalyst and a solvent which is a product of the olefin oligomerization process.Type: GrantFiled: December 18, 1995Date of Patent: January 12, 1999Assignee: Phillips Petroleum CompanyInventor: Mark E. Lashier
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Patent number: 5856612Abstract: The present invention relates to a process for producing an .alpha.-olefin oligomer by subjecting .alpha.-olefin to oligomerization in a reaction zone in the presence of a reaction solution containing a chromium-based catalyst, which comprises,continuously conducting said oligomerization of .alpha.-olefin by using said chromium-based catalyst comprising at least a chromium compound (a), a nitrogen-containing compound (b) selected from the group consisting of amines, amides and imides, and an alkyl aluminum compound (c) while maintaining a molar ratio of the .alpha.-olefin oligomer to .alpha.-olefin in the range of 0.05 to 1.00.Type: GrantFiled: January 29, 1997Date of Patent: January 5, 1999Assignee: Mitsubishi Chemical CorporationInventors: Yoshitaka Araki, Hirofumi Nakamura, Yoshiaki Nanba, Takeshi Okano
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Patent number: 5817902Abstract: The invention provides a process for making .alpha.-olefins. In the chain growth reaction step of the process a jet loop reactor is used to fully use high pressure ethylene, and two or more stages of the chain growth reaction is used to raise the selectivity of C.sub.6-10 olefins.Type: GrantFiled: November 12, 1996Date of Patent: October 6, 1998Assignees: China Petro-Chemical Corporation, Daqing Petrochemical Works, China Petrochemical CorporationInventors: Minghe Xie, Anshun Sun, Daohua Jiang, Jiabo Qu, Qian Chen, Weibin Li, Zongsheng Yuan, Chunmei Yu, Xixia Song, Shubao Wan, Zhengnian Luo, Fengrong Wang, Qun Xu, Shulan Wang, Yingjie Feng, Yongchen Sun
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Patent number: 5817905Abstract: The invention concerns an improved process for the conversion of ethylene into light alpha olefins wherein the ethylene is brought into contact with a catalyst obtained by mixing a compound of zirconium with an organic compound selected from the class of acetals and ketals, esters, ketones, ethers, amines, nitrites, anhydrides, chlorides of acids, amides, aldehydes, thioethers, sulphides and disulphides, thiophenes, thioureas and phosphines, and with a chloro or bromo compound of aluminium hydrocarbyl, in the presence of an additive formed by at least one quaternary ammonium salt.Type: GrantFiled: April 24, 1997Date of Patent: October 6, 1998Assignee: Institut Francais du PetroleInventors: Dominique Commereuc, Yves Glaize, Fran.cedilla.ois Hugues, Pierre Panzarella, Lucien Saussine
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Patent number: 5792895Abstract: The invention concerns an improved process for the conversion of ethylene into but-1-ene, wherein the ethylene is brought into contact with a catalyst obtained by the interaction of an alkyl titanate, possibly mixed with an ether, with a compound of aluminium of the formula AlR.sub.3 or AlR.sub.2 H, and in the presence of an additive formed by at least one polyethylene glycol and/or one of its derivatives such as a monoether or a monoester of polyethylene glycol.Type: GrantFiled: April 24, 1997Date of Patent: August 11, 1998Assignees: Institut Francais du Petrole, Saudi Basic Industries CorporationInventors: Dominique Commereuc, Yves Chauvin, Francois Hugues, Yves Glaize
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Patent number: 5780697Abstract: A process for deactivating a nickel, cobalt, or nickel and cobalt displacement catalyst during a reaction wherein an alkyl group is displaced from a trialkyl aluminum compound in a reaction mixture containing said catalyst is disclosed. The process involves adding a deactivating amount of a catalyst poison containing silver, silver compounds, silver complexes, thallium, thallium compounds, thallium complexes, or mixtures thereof to the reaction mixture after the displacement has proceeded to the desired extent.Type: GrantFiled: June 17, 1997Date of Patent: July 14, 1998Assignee: Amoco CorporationInventors: Ronny Wen-Long Lin, Richard Andrew Holub, Richard Neil Hollenshead
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Patent number: 5750817Abstract: The disclosure describes a process for preparing .alpha.-olefin oligomers, which comprises carrying out oligomerization of an .alpha.-olefin in a solvent by reacting said .alpha.-olefin in a chromium-based catalyst system composed of a combination of at least a chromium compound, an amine or metal amide, and an alkylaluminum compound, in a contacting mode that the chromium compound and the alkylaluminum compound are not previously contacted with each other.Type: GrantFiled: March 13, 1996Date of Patent: May 12, 1998Assignee: Mitsubishi Chemical CorporationInventors: Eiji Tanaka, Hisao Urata, Toshiyuki Oshiki, Takayuki Aoshima, Riichirou Kawashima, Shinji Iwade, Hirofumi Nakamura, Syunji Katsuki, Takeshi Okano
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Patent number: 5744678Abstract: An oligomerization catalyst according to the invention comprises a nickel compound (A); an organophosphoric compound (B); an organoaluminum compound (C); and a compound of the group consisting of carbon-halogen bond-containing compounds, oxoacid and salts thereof, sulfonic acid and derivatives thereof, and compounds of any of the formulae QX.sup.4.sub.n, QR.sub.n, QR'.sub.n, QX.sup.4.sub.1 R.sub.m, QX.sup.4.sub.1 R'.sub.m, QR.sub.1 R'.sub.m, Q.sup.1 (BR.sub.4).sub.p and R"(BR.sub.4) wherein Q is an element of the group consisting of Mg, Ti, Zr, B and Sn, Q.sup.1 is an element of the group consisting of Li, Na, K, Ca and Zn, X.sup.4 is a halogen or hydrogen atom, R is a C.sub.1 -C.sub.12 hydrocarbon group, R' is a C.sub.1 -C.sub.12 oxygen-containing hydrocarbon group, R" is a C.sub.1 -C.sub.20 hydrocarbon group or an ammonium group, n is a valence of Q, l, m is a natural member that satisfied n=l+m, and p is a valence of Q.sup.1. This catalyst is useful for the production of alpha-olefinic oligomers.Type: GrantFiled: November 1, 1996Date of Patent: April 28, 1998Assignee: Nippon Oil Co., Ltd.Inventors: Fuyuki Aida, Takashi Nakano, Yoshio Tajima, Kazuo Matsuura
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Patent number: 5731487Abstract: The present invention provides a process for producing olefin having a terminal double bond by trimerizing at least one monomer selected from a group consisting of ethylene, propylene, and 1-butene, which comprises using a catalyst comprising a product prepared from(1) component (A): a chromium compound represented by the formula ?1!CrXmYn ?1!wherein X represents carboxylic acid residue, 1,3-diketone residue, halogen atom or alkoxyl group, Y represents amine, phosphine, phosphine oxide, nitrosyl group or ether, m means an integer of from 2 to 4 and n means an integer of from 0 to 4,component (B): a heterocyclic compound having a pyrrole ring unit or an imidazole ring unit, andcomponent (C): an aluminum compound represented by the formula ?2!AlR.sub.k Z.sub.Type: GrantFiled: August 9, 1996Date of Patent: March 24, 1998Assignee: Sumitomo Chemical Company, LimitedInventors: Mitsuhisa Tamura, Kenshi Uchida, Yoshiaki Ito, Kiyoshi Iwanaga
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Patent number: 5648581Abstract: A method for polymerizing or copolymerizing .alpha.-olefin in a vapor phase condition by supplying to a reactor a catalyst composed of a solid catalyst component containing at least titanium and/or vanadium as well as magnesium and an organic aluminum compound wherein the current due to the electric charge transferred from polymer particles electrified to an electrode disposed at a position where sheet-like polymers will be produced in a reactor, as a result of contact of the polymer particles in the reactor with the electrode is determined, and the polymerization or copolymerization is carried out under such condition where the mean value of current is zero or a positive value. As a result, it becomes possible to prevent production of sheet-like polymers and to stably continue the reaction for polymerization.Type: GrantFiled: February 8, 1996Date of Patent: July 15, 1997Assignee: Nippon Petrochemicals Company, LimitedInventors: Kunimichi Kubo, Masahiro Niwa, Eiko Kobayashi, Mamoru Yoshikawa
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Patent number: 5633419Abstract: A supported catalyst component for an olefin polymerization catalyst comprising a solid particulate support, a magnesium halide, and optionally a Group 4 or 5 transition metal compound, a Group 2 or 13 organometal compound, and an electron donor, wherein a majority of particles of the solid particulate support is in the form of an agglomerate of subparticles. A process for preparing this supported catalyst component. A catalyst composition comprising this catalyst component and a cocatalyst. An olefin polymerization process using such a catalyst composition.Type: GrantFiled: June 6, 1995Date of Patent: May 27, 1997Assignee: The Dow Chemical CompanyInventors: Lee Spencer, Marc A. Springs
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Patent number: 5557026Abstract: A method for oligomerizing an .alpha.-olefin in the presence of a catalyst comprising a specific chromium compound including chromium atom and pyrrolyl group and an alkylaluminum compound, wherein the .alpha.-olefin is contacted to the chromium compound and the alkylaluminum compound without preliminarily contacting the chromium compound to either the .alpha.-olefin or the alkylaluminum compound.Type: GrantFiled: July 31, 1995Date of Patent: September 17, 1996Assignee: Mitsubishi Chemical CorporationInventors: Eiji Tanaka, Hisao Urata, Toshiyuki Oshiki
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Patent number: 5557025Abstract: A process for preparing hyperpure propylene (co)polymers comprising polymerizing the monomer(s) in liquid monomer in the presence of a catalyst obtained by reacting an Al-trialkyl compound with a solid catalyst component comprising magnesium dihalide in active form, having supported thereon a titanium chloride or chloroalcoholate, and an ether having the general formula: ##STR1## where R and R" are the same or different and are C.sub.2-18 alkyl, C.sub.3-18 cycloalkyl, C.sub.6-18 aryl, C.sub.7-18 arylalkyl or alkylaryl radicals.Type: GrantFiled: March 26, 1991Date of Patent: September 17, 1996Assignee: Montell North America Inc.Inventors: Luciano Noristi, Giovanni Baruzzi
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Patent number: 5523508Abstract: Linear alpha-olefin formation via oligomerization of ethylene using transition metal catalysis leads to a Schultz-Flory distribution of oligomers. At modest temperatures formation of heavy oligomers which are waxy solids only partly soluble in the LAO product mix causes reactor plugging and curtailing the time of continuous runs. Recycling a portion of a lighter oligomeric fraction obviates this problem and permits runs uninterrupted by solids formation.Type: GrantFiled: December 29, 1994Date of Patent: June 4, 1996Assignee: UOPInventors: Mark A. Krawczyk, Richard E. Marinangeli, R. Joe Lawson
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Patent number: 5523507Abstract: Novel chromium-containing compounds, such as, for example, chromium pyrrolides, are prepared by forming a mixture of a chromium salt, a metal amide, and an electron pair donor solvent, such as, for example, an ether. These novel chromium-containing, or chromium pyrrolide, compounds can be used either unsupported or supported on an inorganic oxide support, with a metal alkyl and an unsaturated hydrocarbon, to trimerize, oligomerize, and/or polymerize olefins.Type: GrantFiled: July 29, 1994Date of Patent: June 4, 1996Assignee: Phillips Petroleum CompanyInventors: William K. Reagen, Ted M. Pettijohn, Jeffrey W. Freeman
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Patent number: 5518932Abstract: The process of preparing higher aluminum alkyls by olefin chain growth on alkyl aluminum is improved by using on-line flow-through calorimetry to determine the aluminum concentration of a process stream, such as the aluminum alkyl feed stream, by reacting a sample portion of the process stream with a molar excess of alcohol and measuring the change in temperature. The aluminum concentration of the stream can then be adjusted as required to maintain it within a selected range.Type: GrantFiled: June 21, 1993Date of Patent: May 21, 1996Assignee: Albemarle CorporationInventors: Robert P. Gallant, Isaac L. Smith, Joseph B. Tedder, Jr., Lloyd T. Crasto, George A. Daniels
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Patent number: 5516958Abstract: .alpha.,.omega.-Diene oligomers which are useful as synthetic lubricants are prepared by oligomerizing a .alpha.,.omega.-diene using a trialkylaluminum catalyst.Type: GrantFiled: December 14, 1993Date of Patent: May 14, 1996Assignee: Albemarle CorporationInventors: Robert A. Schaerfl, Jr., Ali M. Dadgar, Carroll W. Lanier
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Patent number: 5510556Abstract: Disclosed is a process for producing normal alpha olefins having less than 1.0% saturates content, and typically no more than 0.40% saturates content. The process involves forming a mixture of normal alpha olefins and tri(higher)alkyl aluminum compounds, contacting this mixture with a cobalt-containing transalkylation catalyst, and hydrolyzing the normal alpha olefin/transalkylation catalyst mixture to minimize the amount of saturates formed. In one embodiment, the catalyst is a cobalt- and nickel-containing transalkylation catalyst. After hydrolysis, the resulting normal alpha olefins contain essentially no Group VIII metal that is capable of transalkylation.Type: GrantFiled: September 1, 1994Date of Patent: April 23, 1996Assignee: Chevron Chemical CompanyInventors: Loren W. Hedrich, Alfred N. Kresge, Roger C. Williamson
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Patent number: 5498735Abstract: A process of producing an .alpha.-olefin which comprises carrying out separately the growth of ethylene with triethyl aluminum and the growth of ethylene with tributyl aluminum, displacing the resulting higher trialkyl aluminum with ethylene, thereby forming triethyl aluminum and an .alpha.-olefin, and displacing at least part of the resulting triethyl aluminum with butene contained in the resulting .alpha.-olefin, thereby forming tributyl aluminum.The present invention permits the efficient production of .alpha.-olefins containing linear .alpha.-olefins in extremely high purity. The .alpha.-olefins will find use as comonomers for polyolefins (whose demand is increasing recently) and also as raw materials of synthetic lubricants.Type: GrantFiled: July 18, 1994Date of Patent: March 12, 1996Assignee: Idemitsu Petrochemical Co., Ltd.Inventors: Kunio Takeuchi, Takao Tamura, Hironori Tashiro
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Patent number: 5498815Abstract: A synthetic oil is made by a process comprising the steps of (a) reacting a vinylidene olefin in the presence of a catalyst to form an intermediate mixture which contains at least about 50 weight percent dimer of said vinylidene olefin, and (b) adding a vinyl olefin to said intermediate mixture and reacting said intermediate mixture and said vinyl olefin in the presence of a catalyst so as to form a product mixture which contains said dimer of said vinylidene olefin and a codimer of said added vinyl olefin with said vinylidene olefin.Type: GrantFiled: December 13, 1991Date of Patent: March 12, 1996Assignee: Albemarle CorporationInventors: Robert A. Schaerfl, Jr., Ali M. Dadgar, Carroll W. Lanier
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Patent number: 5491272Abstract: A method for oligomerizing an .alpha.-olefin in the presence of a catalyst comprising a specific chromium compound including chromium atom and pyrrolyl group and an alkylaluminum compound, wherein the .alpha.-olefin is contacted to the chromium compound and the alkylaluminum compound without preliminarily contacting the chromium compound to either the .alpha.-olefin or the alkylaluminum compound.Type: GrantFiled: September 17, 1993Date of Patent: February 13, 1996Assignee: Mitsubishi Chemical CorporationInventors: Eiji Tanaka, Hisao Urata, Toshiyuki Oshiki
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Patent number: 5420372Abstract: An alpha-olefin oligomer consisting essentially of repeating units having the structural formula: ##STR1## wherein x represents an integer from 3 to 11, inclusive; andy represents the number of repeating units in the oligomer such that the weight average molecular weight is from about 5,000 to about 20,000;said oligomer having from about 70 to 100 percent head-to-tail alignment of the repeating units of the oligomer. Preferably the weight average molecular weight of the oligomer is from 5,000 to about 10,000; and said oligomer is further characterized as having a dispersity of less than about 5.5, and a Z average molecular weight of less than about 24,000.Type: GrantFiled: December 30, 1992Date of Patent: May 30, 1995Assignee: Chevron Chemical CompanyInventors: David L. Beach, Paul G. Bercik, Neal E. Morganson
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Patent number: 5414180Abstract: Organic aluminoxy compounds are prepared by reacting an organo boronic acid with a trihydrocarbyl aluminum compound. The resulting products are suitable as components for catalyst systems for the polymerization of olefins.Type: GrantFiled: July 14, 1993Date of Patent: May 9, 1995Assignee: Phillips Petroleum CompanyInventors: Rolf L. Geerts, Tara G. Hill
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Patent number: 5382738Abstract: Inorganic oxides, modified with a metal alkyl and an unsaturated hydrocarbon, can be used to support a metal source, such as, for example, chromium, and a pyrrole-containing compound. The resultant catalyst system can be used to oligomerize and/or trimerize olefins. Olefin oligomerization and/or trimerization processes are also provided.Type: GrantFiled: February 10, 1994Date of Patent: January 17, 1995Assignee: Phillips Petroleum CompanyInventors: William K. Reagen, Max P. McDaniel
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Patent number: 5345022Abstract: Disclosed is a process for producing normal alpha olefins having low saturates content. The process involves the use of a Group VIII metal-containing transalkylation catalyst to minimize the amount of saturates formed.Type: GrantFiled: May 12, 1992Date of Patent: September 6, 1994Assignee: Chevron Research and Technology CompanyInventors: Loren W. Hedrich, Alfred N. Kresge, Roger C. Williamson
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Patent number: 5321107Abstract: In accordance with the present invention, there are provided an olefin polymerization catalyst formed from:[A] a compound of a transition metal belonging to Group IV B of the periodic table,[B] an aluminoxane, and[C] water,an olefin polymerization catalyst formed from [D] an organoaluminum compound in addition to the above-mentioned [A], [B] and [D] components, and processes for the polymerization of olefins using the above-mentioned olefin polymerization catalysts, respectively.Type: GrantFiled: October 29, 1993Date of Patent: June 14, 1994Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Toshiyuki Tsutsui, Kazunori Okawa, Akinori Toyota