Non-metal Material Is Inorganic Halogen-containing Material Patents (Class 526/137)
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Patent number: 4252670Abstract: A component of a polymerization catalyst is prepared by reacting an organo-magnesium compound, or a complex with an organo-aluminium compound, with an halogenating agent such as silicon tetrachloride or hydrogen chloride, and then reacting the product with a Lewis Base compound, particularly an ester and finally with titanium tetrachloride. The product obtained is combined with an organo-aluminium compound preferably together with a Lewis Base and used to polymerize an olefine monomer. The catalyst has a high activity and is stereospecific.Type: GrantFiled: March 26, 1979Date of Patent: February 24, 1981Assignee: Imperial Chemical Industries LimitedInventors: Anthony D. Caunt, Paul D. Gavens
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Patent number: 4250288Abstract: Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins at temperatures above 140.degree. C. are provided by reacting a transition metal compound such as tetra(isopropoxy)titanium, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum, e.g., di-n-butylmagnesium.x triethylaluminum and a hydrogen halide or an active hydrocarbyl halide such as t-butyl chloride. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.Type: GrantFiled: February 3, 1977Date of Patent: February 10, 1981Assignee: The Dow Chemical CompanyInventors: Kirby Lowery, Jr., George W. Knight, James A. May, Jr.
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Patent number: 4243786Abstract: A solid catalyst for polymerization of olefins prepared by treatment of a titanium trichloride composition with a mixture of (1) a halogen, an interhalogen compound or a halogenated hydrocarbon compound, and (2) an ether which, in combination with organoaluminum compounds as activators, can be used to polymerize olefins for the efficient production of highly crystalline olefin polymers.Type: GrantFiled: April 13, 1979Date of Patent: January 6, 1981Assignee: Sumitomo Chemical Co., Ltd.Inventors: Akinobu Shiga, Yoshiharu Fukui, Kazuhiro Matsumura, Toshio Sasaki, Masahisa Okawa
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Patent number: 4242232Abstract: A catalyst comprising(a) a reaction mixture formed by reacting M(RCO.sub.2).sub.3 with AlR.sub.3'.sup.1(b) AlR.sub.3.sup.2 and / or HAlR.sub.2.sup.2 and(c) a Lewis acidwherein M denotes a trivalent rare earth element with an atomic number of 57 to 71, R denotes a saturated or unsaturated, straight chain or branched chain aliphatic hydrocarbon group having 1 to 20 C-atoms which may be substituted one or more times with cycloalkyl having 5 to 7-atoms and/or phenyl, the carboxyl group being attached to a primary, secondary or tertiary C-atom; a cycloalkyl group having 5 to 7 ring carbon atoms, which may be substituted one or more times with alkyl groups having from 1 to 5 C-atoms; or an aromatic group having from 6 to 10 ring carbon atoms, which may be substituted one or more times with alkyl groups having 1 to 5 C-atoms, and R.sup.1 and R.sup.2 are identical or different, straight chain or branched chain alkyl groups having from 1 to 10 C-atoms.Type: GrantFiled: July 3, 1979Date of Patent: December 30, 1980Assignee: Bayer AktiengesellschaftInventors: Gerd Sylvester, Josef Witte, Gunter Marwede
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Patent number: 4238586Abstract: A propylene polymerization catalyst is formed by incorporation into a catalytic mixture, comprising a transition metal compound and an organoaluminum compound, effective amounts of Group Va or Group VII oxygen mineral acids whereby the amount of n-hexane-soluble polymeric product is decreased.Type: GrantFiled: May 3, 1979Date of Patent: December 9, 1980Assignee: Standard Oil Company (Indiana)Inventor: Nikolaous K. Balint
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Patent number: 4222895Abstract: Phosphorus oxytrichloride modified titanium trichloride polymerization catalysts of improved efficiency and/or isotacticity are obtained when the modification reaction is carried out in the presence of methylene chloride.Type: GrantFiled: May 4, 1979Date of Patent: September 16, 1980Assignee: Dart Industries Inc.Inventors: John L. H. Allan, Birendra K. Patnaik
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Patent number: 4217245Abstract: A novel catalyst system for the polymerization or copolymerization of olefines, more particularly to ethylene is disclosed. For preparing the novel catalyst system, a titanium compound (Ti IV) is previously attached to a solid supporting member, whereafter the so anchored Ti is reacted with vapors of a metal, in the presence of a halogenated compound or not. Very high polymer yields are obtained and examples are given.Type: GrantFiled: June 2, 1978Date of Patent: August 12, 1980Assignee: Snamprogetti, S.p.A.Inventors: Margherita Corbellini, Alessandro Gamba, Carlo Busetto
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Patent number: 4217432Abstract: A solid catalyst for olefin polymerization which is obtained by the catalytic treatment of a titanium trichloride composition with a mixture of a halogenated hydrocarbon and an ether, the composition being produced by subjecting a solid reduction product, which is obtained by reduction of titanium tetrachloride with an organo-aluminum compound, to heat treatment or to catalytic treatment with a specific organo-aluminum compound, aluminum halide, an ether and the like. In the polymerization of an olefin, combined catalyst systems of this solid catalyst and organo-aluminum compounds as activators can be used for efficient production of olefin polymers having a high crystallinity.Type: GrantFiled: August 2, 1978Date of Patent: August 12, 1980Assignee: Sumitomo Chemical Company, LimitedInventors: Akinobu Shiga, Yoshiharu Fukui, Kazuhiro Matsumura, Toshio Sasaki, Masahisa Ohkawa
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Patent number: 4207206Abstract: A propylene polymerization catalyst is formed by incorporation into a catalytic mixture, comprising a transition metal compound and an organoaluminum compound, effective amounts of Group Va or Group VII oxygen mineral acids whereby the amount of n-hexane-soluble polymeric product is decreased.Type: GrantFiled: September 29, 1978Date of Patent: June 10, 1980Assignee: Standard Oil Company (Indiana)Inventor: Nikolaous K. Balint
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Patent number: 4197387Abstract: Phosphorus oxytrichloride modified titanium trichloride polymerization catalysts of improved efficiency and/or isotacticity are obtained when the modification reaction is carried out in the presence of methylene chloride.Type: GrantFiled: December 22, 1978Date of Patent: April 8, 1980Assignee: Dart Industries Inc.Inventors: John L. H. Allan, Birendra K. Patnaik
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Patent number: 4195145Abstract: A process for purifying propylene homopolymers or copolymers which comprises:(i) polymerizing or copolymerizing propylene with other unsaturated hydrocarbon monomers in liquid propylene in the presence of a catalyst system consisting essentially of (a) an activated titanium trichloride obtained by reducing titanium tetrachloride with an organo-aluminum compound followed by activation and (b) an organo-aluminum compound;(ii) introducing the resulting polymer slurry into an upper portion of a counter-current washing tower to counter-currently contact the polymer slurry with a C.sub.3 -C.sub.8 alcohol and liquid propylene, whereby said catalyst is deactivated and at the same time the propylene homopolymers or copolymers dissolved in the polymer slurry and the catalyst are removed by washing, wherein said alcohol is used in an amount 0.Type: GrantFiled: November 13, 1978Date of Patent: March 25, 1980Assignee: Sumitomo Chemical Company, LimitedInventors: Akinobu Shiga, Kiyoshi Matsuyama, Masahiro Kakugo, Takatoshi Suzuki
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Patent number: 4191816Abstract: A process for the preparation of catalysts for the polymerization of olefines, e.g. ethylene and propylene. This process comprises essentially the two following steps:(1) A compound (A) of an element selected from groups Ia, Ib, IIa, IIb, IIIa, IIIb, VIa and VIIb of the Periodic Table of Elements is heated and milled under the protection of an inert gas with an organic acetoxy compound; then the volatile portions of the mixture are eliminated by distillation.(2) The solid resulting from the first step is dissolved or dispersed in a non-polar hydrocarbon and an activator (B) is added, mixed and heated with said solution or dispersion until a homogeneous solution or dispersion of activated catalyst is obtained. (B) is selected from compounds of elements IVa, IVb and Vb of the Periodic Table.This catalyst is used in admixture with a polymerization promoter (C) selected from organo-metallic additives, e.g. aluminum-organic compounds for the polymerization of olefines at relatively low temperatures and pressures.Type: GrantFiled: May 12, 1977Date of Patent: March 4, 1980Assignee: Battelle Memorial InstituteInventor: Alfred Columberg
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Patent number: 4189553Abstract: Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins, particularly higher olefins, are provided by reacting a trivalent titanium halide complex such as an alcohol complex of titanium trichloride, an organomagnesium component such as a hydrocarbon soluble complex of dialkyl magnesium and an alkyl aluminum and halide source such as a hydrogen halide or an alkyl aluminum halide. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.Type: GrantFiled: June 2, 1978Date of Patent: February 19, 1980Assignee: The Dow Chemical CompanyInventor: Donald F. Birkelbach
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Patent number: 4171284Abstract: A propylene polymerization catalyst is formed by incorporation into a catalytic mixture, comprising a transition metal compound and an organoaluminum compound, effective amounts of hexavalent sulfur mineral acid or anhydride whereby the amount of n-hexane-soluble polymeric product is decreased.Type: GrantFiled: February 27, 1978Date of Patent: October 16, 1979Assignee: Standard Oil Company (Indiana)Inventor: Nikolaus K. Balint
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Patent number: 4168358Abstract: In a method for producing olefin polymers which comprises polymerizing ethylene monomer alone, or two components comprising ethylene and .alpha.-olefins of the formula, CH.sub.2 .dbd.CHR (in which R is a straight or branched alkyl group having 1 to 6 carbon atoms), or three components comprising ethylene, said .alpha.-olefin and one or more of straight or cyclic diene or polyene monomers having a non-conjugated double bond, in the presence of a catalyst, the improvement which comprises using a catalyst system comprising (1) an organo-aluminum compoum, (2) a 3- to 5-valent vanadium compound soluble in organic inert solvents, and (3) (A) a compound of the formula, ##STR1## (in which R' is a group having a straight or cyclic ether linkage, and X is a halogen atom), or (B) a reaction product of phosphorus pentachloride with an alcohol as an activating agent.Type: GrantFiled: June 27, 1977Date of Patent: September 18, 1979Assignee: Sumitomo Chemical Company LimitedInventors: Hiroyuki Harada, Yuji Kobayashi, Keisaku Yamamoto
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Patent number: 4168374Abstract: There is disclosed a method for copolymerizing cis-1,3-pentadiene and trans-1,3-pentadiene to prepare cis-1,4-polypentadienes. Other conjugated diolefins, including butadiene, isoprene, 2-ethyl-1,3-butadiene and 2-methyl-1,3-pentadiene also may be copolymerized with the cis-1,3-pentadiene isomer to prepare elastomeric copolymers. The polymerization catalyst is a ternary catalyst system comprising (A) a soluble chromium compound, (B) organometallic compounds such as a trihydrocarbylaluminum, and (C) a dihydrocarbyl hydrogen phosphite.Type: GrantFiled: April 5, 1978Date of Patent: September 18, 1979Assignee: The Goodyear Tire & Rubber CompanyInventors: Morford C. Throckmorton, Charles J. Suchma
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Patent number: 4155880Abstract: A process for producing cis-1,4 polybutadiene by contacting butadiene with a catalyst consisting of (1) at least one organoaluminum compound, (2) at least one nickel compound selected from the class consisting of nickel salts of carboxylic acids, organic complex compounds of nickel, nickel tetracarbonyl, and (3) at least one hydrogen fluoride complex prepared by complexing hydrogen fluoride with a member of the class consisting of ketones, esters, ethers, alcohols, nitriles and water.Type: GrantFiled: June 26, 1978Date of Patent: May 22, 1979Assignee: The Goodyear Tire & Rubber CompanyInventors: Morford C. Throckmorton, William M. Saltman
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Patent number: 4154702Abstract: Phosphorus oxytrichloride modified titanium trichloride polymerization catalysts of improved efficiency and/or isotacticity are obtained when the modification reaction is carried out in the presence of methylene chloride.Type: GrantFiled: May 22, 1978Date of Patent: May 15, 1979Assignee: Dart Industries Inc.Inventors: John L. H. Allan, Birendra K. Patnaik
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Patent number: 4151113Abstract: Novel halogenated organoaluminum catalysts are prepared by prereacting a material of the formula:R.sub.m AlX.sub.3-mwherein m is an integer of from 1 to 3 inclusive, R is the same or different alkyl radical of straight or branched chain structure of from 1 to 7 carbons and X is the same or different halogen selected from the group consisting of chlorine and bromine with Y moles of halogen or mixed halogen per mole of aluminum compound wherein the halogen is selected from the group consisting of chlorine and bromine such that (m-Y) is from less than 0.7 to about 0.2. The materials must be prepared sufficiently prior to use to insure extensive reaction of the components to yield an effective polymerization catalyst. Preferably, the components are prereacted for at least 2 minutes, more preferably at least 10 minutes, most preferably at least 4 hours, i.e. (overnight). The catalyst is prepared at any temperature insuring liquid conditions, i.e., -100.fwdarw.+100.degree. C.Type: GrantFiled: August 29, 1977Date of Patent: April 24, 1979Assignee: Exxon Research & Engineering Co.Inventor: Warren A. Thaler
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Patent number: 4151111Abstract: A process for preparing a titanium trichloride composition comprises the steps of:(1) reducing titanium tetrachloride with oaganoaluminum compounds to produce a titanium trichloride composition having a .beta.-crystal structure;(2) heat treating the resulting titanium trichloride having a .beta.-crystal structure and subsequently pulverizing the heat-treated titanium trichloride in the presence or absence of titanium tetrachloride to produce a titanium trichloride composition containing substantially no titanium trichloride having a .beta.-crystal structure;(3) treating the pulverized titanium trichloride composition with a complexing agent; and(4) treating the resulting titanium trichloride composition with a compound selected from the group consisting of metal halide compounds having Lewis acidity and interhalogen compounds.Type: GrantFiled: April 15, 1977Date of Patent: April 24, 1979Assignee: Mitsubishi Petrochemical Company LimitedInventors: Masuzo Yokoyama, Akira Yamada, Siyouzo Okosi, Tokuo Katou, Shinichi Yoshida
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Patent number: 4146502Abstract: A catalyst component, which is to be combined with an organoaluminum component to form a Ziegler catalyst for olefin polymerization, is produced by treating (1) a solid composition resulting from a process of combining a magnesium halide such as magnesium chloride, an electron donor compound such as ethyl benzoate and a titanium halogen compound such as titanium tetrachloride with (2) an interhalogen compound or a halogen such as iodine trichloride.Type: GrantFiled: October 6, 1977Date of Patent: March 27, 1979Assignee: Mitsubishi Petrochemical Company LimitedInventors: Masuzo Yokoyama, Shoichi Masukawa, Tsunenori Takahashi, Hideo Sakurai, Makoto Kouno, Shozo Ohkosi, Satosi Ohtaka
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Patent number: 4145497Abstract: Uranium-containing mixed catalysts containing uranium in the formal oxidation state +4 as uranium salts of carboxylic acids, a Lewis acid, and an organometallic aluminum compound are prepared and can be used for stereospecific polymerization of diolefins or mixtures of diolefins and monoolefins.Type: GrantFiled: May 31, 1977Date of Patent: March 20, 1979Assignee: Bayer AktiengesellschaftInventors: Gerd Sylvester, Josef Witte, Gunter Marwede
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Patent number: 4138448Abstract: A process for preparing polymers of a monomer mixture of cyclopentadiene and at least one bicycloheptene is described, and the process comprises polymerizing the monomer mixture in the presence of a catalyst mixture comprising(a) at least one organoaluminum halide of the formulaRAlX.sub.2 or R.sub.3 Al.sub.2 X.sub.3 IIwherein R is an alkyl radical containing from 1 to about 12 carbon atoms, and X is a halogen, and(b) at least one tungsten or molybdenum salt, or a mixture of these salts.The polymers obtained in this manner exhibit plastic properties such as high impact strength, and can be oil extended and used as general purpose rubbers.Type: GrantFiled: December 5, 1977Date of Patent: February 6, 1979Assignee: The B. F. Goodrich CompanyInventor: Robert J. Minchak
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Patent number: 4136057Abstract: A transition metal compound containing at least one .eta..sup.6 -arene is contacted with a solid material of the formula MX.sub.2 nL where X is a halogen atom, n is such that 0<n.ltoreq.6 and L is an organic Lewis Base compound. The transition metal compound can be a compound such as TiCl.sub.2.2AlCl.sub.3 -arene. The solid material is preferably of high surface area and this may be inherent in the solid material or can be achieved by a grinding procedure. The solid material may be MgCl.sub.2 2.0 C.sub.2 H.sub.5 OH; MgCl.sub.2 2.0 CH.sub.3 COOH or MgCl.sub.2 1.0 CH.sub.3 COOC.sub.2 H.sub.5. The solid material can be treated with a halogen-containing compound either before, during or after the contacting with the transition metal compound. The product of the contacting is useful either as catalyst for the polymerization of unsaturated hydrocarbon monomers or as a component of such a catalyst.Type: GrantFiled: August 8, 1977Date of Patent: January 23, 1979Assignee: Imperial Chemical Industries LimitedInventors: John P. Candlin, John A. A. A. G. Segal
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Patent number: 4134855Abstract: A transition metal compound containing at least one .eta..sup.6 -arene is contacted with a compound of the formula MX.sub.n Y.sub.2-n mL; or Z.sub.3 Al[MgZ.sub.2 ].sub.y AlZ.sub.3 where L, M, X, Y, Z, m, n, and y are defined. The transition metal compound can be a compound such as TiCl.sub.2.2AlCl.sub.3 -arene. The compound of the defined formula may be a solid compound which may be insoluble in hydrocarbon liquids when it may be of high surface area which may be inherent in the solid or can be achieved by a grinding procedure. The compound of the defined formula may be Mg(OC.sub.2 H.sub.5).sub.2 ; Mg(CH.sub.3).sub.2 ; Mg(CH.sub.2 C.sub.6 H.sub.5).sub.2 ; (C.sub.2 H.sub.5).sub.3 Al[Mg(C.sub.2 H.sub.5).sub.2 ]-Al(C.sub.2 H.sub.5).sub.3 or (iC.sub.3 H.sub.7 O).sub.3 Al(Mg(OiC.sub.3 H.sub.7).sub.2 ]Al(OiC.sub.3 H.sub.7).sub.3. During or after the contacting with the transition metal compound, treatment with a halogen-containing compound may be effected.Type: GrantFiled: August 8, 1977Date of Patent: January 16, 1979Assignee: Imperial Chemical Industries LimitedInventors: John P. Candlin, John A. A. A. G. Segal
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Patent number: 4135046Abstract: A unique high efficiency catalyst has been developed for the polymerization of ethylene. The activity of the catalyst, which uses a mixed magnesium-aluminum alkyl as a reducing agent for tetrabutyltitanate, and hydrogen chloride to deactivate excess reducing agent, is dependent on a specific and unpredicted order of addition of catalyst components.Type: GrantFiled: February 28, 1977Date of Patent: January 16, 1979Assignee: Arco Polymers, Inc.Inventors: James J. Harris, Richard E. Hammond
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Patent number: 4127710Abstract: A 1,3-cyclodiene comonomer and a linear conjugated diene comonomer are copolymerized employing a catalyst formed from a mixture comprising a triorganoaluminum compound, a nickel (II) compound and a Friedel-Crafts type cocatalyst. Also, a catalyst and a method for the production thereof which is useful in the copolymerization is provided.Type: GrantFiled: October 2, 1974Date of Patent: November 28, 1978Assignee: Phillips Petroleum CompanyInventor: Henry L. Hsieh
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Patent number: 4123387Abstract: A solid catalyst for olefin polymerization which is obtained by the catalytic treatment of a titanium trichloride composition with a mixture of a halogenated hydrocarbon and an ether, the composition being produced by subjecting a solid reduction product, which is obtained by reduction of titanium tetrachloride with an organo-aluminum compound, to heat treatment or to catalytic treatment with a specific organo-aluminum compound, aluminum halide, an ether and the like. In the polymerization of an olefin, combined catalyst systems of this solid catalyst and organo-aluminum compounds as activators can be used for efficient production of olefin polymers having a high crystallinity.Type: GrantFiled: March 14, 1977Date of Patent: October 31, 1978Assignee: Sumitomo Chemical Company, LimitedInventors: Akinobu Shiga, Yoshiharu Fukui, Kazuhiro Matsumura, Toshio Sasaki, Masahisa Ohkawa
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Patent number: 4121030Abstract: A transition metal compound containing at least one .pi.-bonded arene is contacted with an inorganic oxide, hydroxide, oxyhalide, hydroxyhalide or halide. The transition metal compound can be a compound such as titanium(O)ditoluene or TiCl.sub.2.2AlCl.sub.3 durene. The inorganic compound is preferably of high surface area and this may be inherent in the compound or can be achieved by a grinding procedure. The inorganic compound can be treated with a halogen containing compound either before, during or after the contacting with the transition metal compound. The product of the contacting is useful either as catalyst for the polymerization of unsaturated hydrocarbon monomers or as a component of such a catalyst. When used as a component of an olefine polymerization catalyst, the transition metal product can be mixed with an organo-aluminium compound and a Lewis Base compound such as an ester.Type: GrantFiled: November 24, 1976Date of Patent: October 17, 1978Assignee: Imperial Chemical Industries LimitedInventors: John Paton Candlin, Keith Collier Wilson, Ronald Pearce
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Patent number: 4110528Abstract: At least one norbornene-type monomer is copolymerized with about 0% to about 95% by weight of dicyclopentadiene, based upon total polymer weight. The polymerization is primarily by ring opening and is conducted in the presence of (1) a catalyst comprising (a) at least one compound selected from the group consisting of dialkylaluminum iodides, alkylaluminum diiodides and mixtures of trialkylaluminum compounds with iodine, (b) at least one dialkylaluminum chloride or alkylaluminum dichloride and (c) at least one monomer- or solvent-soluble tungsten compound, and (2) at least one nonconjugated acyclic olefin having at least one hydrogen on each double-bonded carbon atom. Catalyst components (a) and (b) are charged before catalyst component (c). Use of a catalyst containing components (a), (b) and (c) produces easy-processing and substantially gel-free polymers, whereas a catalyst containing only (a) and (c) or only (b) and (c) produces heavily gelled polymers.Type: GrantFiled: March 28, 1977Date of Patent: August 29, 1978Assignee: The B. F. Goodrich CompanyInventor: Robert J. Minchak
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Patent number: 4104198Abstract: Compositions exhibiting high catalytic activity in the polymerization of .alpha.-olefins are provided by reacting a dinitrogen and/or dihydrogen complex of a transition metal such as titanium with an organometallic compound of a divalent metal such as dihydrocarbyl magnesium or hydrocarbyl magnesium halide and a halide source such as alkyl aluminum halide. Polymerization processes employing this catalyst composition do not require conventional catalyst removal steps in order to provide polymers having suitable color and other physical characteristics.Type: GrantFiled: July 14, 1976Date of Patent: August 1, 1978Assignee: The Dow Chemical CompanyInventors: James A. May, Jr., Wilbur L. Bressler
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Patent number: 4102817Abstract: A process for producing cis-1,4 polybutadiene by contacting butadiene with a catalyst consisting of (1) at least one organoaluminum compound, (2) at least one nickel compound selected from the class consisting of nickel salts of carboxylic acids, organic complex compounds of nickel, nickel tetracarbonyl, and (3) at least one hydrogen fluoride complex prepared by complexing hydrogen fluoride with a member of the class consisting of ketones, esters, ethers, alcohols, nitriles and water.Type: GrantFiled: October 10, 1974Date of Patent: July 25, 1978Assignee: The Goodyear Tire & Rubber CompanyInventors: Morford C. Throckmorton, William M. Saltman
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Patent number: 4095016Abstract: A catalyst system comprising (1) a cocrystallized titanium trichloride-aluminum chloride modified with phosphorus oxytrichloride, (2) an organo aluminum compound, and (3) an organic trithiophosphite or trithiophosphate for the production of polymers in high yields and of reduced amorphous polymer content.Type: GrantFiled: December 15, 1976Date of Patent: June 13, 1978Assignee: Dart Industries, Inc.Inventors: Frederick Elias Carrock, Peter James Perron, Edward August Zukowski
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Patent number: 4080491Abstract: A process of producing a ring-opening polymerization product of a norbornene derivative containing at least one polar group or aromatic group, a norbornadiene derivative containing at least one of said groups or a cycloolefin using a catalyst system prepared from an organometallic compound and the reaction product of tungsten oxide or molybdenum oxide and a phosphorus pentahalide or phosphorus oxytrihalide or these compounds and other third components. The catalyst system possesses a high polymerization activity.Type: GrantFiled: August 16, 1976Date of Patent: March 21, 1978Assignee: Showa Denko K.K.Inventors: Yukio Kobayashi, Takashi Ueshima, Shoichi Kobayashi
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Patent number: 4069376Abstract: A norbornene-type monomer is copolymerized with about 0% to about 95% by weight of dicyclopentadiene, based upon total polymer weight. The polymerization is conducted in the presence of (1) a catalyst comprising (a) at least one compound selected from the group consisting of dialkyl-aluminum iodides, alkylaluminum diodides and mixtures of trialkylaluminum compounds with iodine, (b) at least one dialkylaluminum chloride or alkylaluminum dichloride and (c) at least one monomer- or solvent-soluble tungsten compound, and (2) at least one nonconjugated acyclic olefin having at least one hydrogen on each double-bonded carbon atom. Catalyst components (a) and (b) are charged before catalyst component (c). Use of a catalyst containing components (a), (b) and (c) produces easy-processing and substantially gel-free polymers, whereas a catalyst containing only (a) and (c) or only (b) and (c) produces heavily gelled polymers.Type: GrantFiled: April 17, 1975Date of Patent: January 17, 1978Assignee: The B. F. Goodrich CompanyInventor: Robert J. Minchak
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Patent number: 4057680Abstract: In the method of polymerizing .alpha.-olefins by contacting an .alpha.-olefin under polymerization conditions with a stereospecific catalyst comprising a titanium trichloride component and an organoaluminium compound, the improvement wherein said titanium trichloride component is ground during or after contact with a treating agent, said treating agent being selected from at least one ofA. an alkylene oxide, andB. a lactone.Type: GrantFiled: August 10, 1976Date of Patent: November 8, 1977Assignee: Showa Denko Kabushiki KaishaInventors: Isamu Yamazaki, Yoichi Toyama, Kiwami Hirota, Hisashi Takeuchi
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Patent number: 4053697Abstract: A process for producing a homopolymer of propylene or a copolymer of propylene which comprises polymerizing propylene or a mixture of propylene and another unsaturated hydrocarbon monomer such as ethylene in liquid propylene, in the presence of a catalyst system consisting essentially of (a) an activated titanium compound obtained by reducing titanium tetrachloride with an organic aluminum compound and activating the resulting titanium compound and (b) an organic aluminum compound to produce a polymer slurry, introducing the polymer slurry into an upper part of a counter-current washing zone, such as a washing tower, and counter-currently contacting the polymer slurry with liquid propylene which is introduced into a lower part of the washing zone, whereby the polymer and catalyst residues dissolved in the polymer slurry are removed.Type: GrantFiled: January 16, 1975Date of Patent: October 11, 1977Assignee: Sumitomo Chemical Company, LimitedInventors: Mamoru Asada, Akinobu Shiga, Kiyoshi Matsuyama
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Patent number: 3985941Abstract: A method of polymerization of butadiene to form polymers with a high (greater than 90 percent) content of cis-1,4 configuration wherein a mixed fluoride bearing catalyst system is utilized to control the polymerization rate and the molecular weight.Type: GrantFiled: May 12, 1975Date of Patent: October 12, 1976Assignee: The Goodyear Tire & Rubber CompanyInventors: Robert M. Pierson, Leonard J. Kuzma
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Patent number: 3960900Abstract: Viscous polybutenes of number average molecular weight (M.sub.n) in the range of about 300 to about 3000 have improved reactivity with intramolecular anhydrides of unsaturated aliphatic dicarboxlyic acids when such polybutenes contain rather small amounts, i.e., 5 to 200 ppm, of halogenated, preferably chlorinated and/or brominated aliphatic or aromatic hydrocarbons. Preference is given to such halogen containing compounds having a sufficient vapor pressure at a temperature in the range of 100.degree. to 300.degree.C to be substantially completely removed at absolute pressures in the range of 5 to 760 mm Hg.Type: GrantFiled: May 10, 1973Date of Patent: June 1, 1976Assignee: Standard Oil CompanyInventors: Imre Puskas, John A. Cengel
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Patent number: T962007Abstract: according to the present invention (1) a titanium trihalide is ground in the presence of from 5 up to 75% molar, relative to the titanium trihalide, of (2) a Lewis Base compound which is an organo-phosphorus compound of the formulaR.sub.1 R.sub.2 R.sub.3 P(O).sub.aand either (a) from 1 up to 50% molar, relative to the titanium trihalide, of a titanium tetrahalide and/or (b) from 0.2 up to 50% molar, relative to the titanium trihalide, of an oxidizing agent, wherein when a titanium tetrahalide is present, the molar quantity of the organo-phosphorus compound is at least equal to the molar quantity of the titanium tetrahalide.The titanium halides (1) and (a) are preferably the chlorides. Suitable forms of titanium trichloride are obtained by the reduction of titanium tetrachloride with hydrogen, titanium metal, aluminum metal or an organo-aluminium compound.Type: GrantFiled: October 18, 1976Date of Patent: September 6, 1977Assignee: Imperial Chemical Industries LimitedInventors: Anthony David Caunt, Alan Branford Newton, Ian Gabriel Williams, Michael Stanley Fortuin