Ether Patents (Class 502/126)
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Patent number: 4990478Abstract: An olefin polymerization catalyst system comprises a solid, hydrocarbon-insoluble, magnesium-containing, titanium-containing, electron donor-containing component; an alkyl aluminum compound; and organosilane compound selected from the group consisting of branched C.sub.3 -C.sub.10 alkyl-t-butoxydimethoxysilanes.Type: GrantFiled: September 21, 1989Date of Patent: February 5, 1991Assignee: Amoco CorporationInventors: Charles R. Hoppin, Benjamin S. Tovrog
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Patent number: 4990479Abstract: An olefin polymerization catalyst formed from (A) a solid titanium catalyst component containing magnesium, titanium and halogen as essential ingredients, (B) an organoaluminum compound, and (C) an organosilicon compound containing a cyclopentyl group, a cyclopentenyl group, a cyclopentadienyl group or a derivative derived from any of these groups.A polymerization process which comprises polymerizing or copolymerizing olefins in the presence of the olefin polymerization catalyst to form a homopolyolefin having a high stereoregularity or a copolyolefin having a narrow composition distribution.Type: GrantFiled: June 15, 1989Date of Patent: February 5, 1991Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Naoshi Ishimaru, Mamoru Kioka, Akinori Toyota
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Patent number: 4988656Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonte or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.Type: GrantFiled: May 12, 1989Date of Patent: January 29, 1991Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee, Bryce V. Johnson
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Patent number: 4983561Abstract: A process for producing a trivalent titanium compound-containing solid catalyst for use in the polymerization of olefins which comprises treating, with an ester compound, a solid product obtained by reducing a titanium compound represented by the following general formula: ##STR1## (R.sup.1 represents hydrocarbon group having 1 to 20 carbon atoms, X represents halogen atom, and n represents a number satisfying 0<n.ltoreq.4) with an organomagnesium compound in the presence of an organic silicon compound having Si--O bond, and thereafter treating it with a mixture of an ester compound and titanium tetrachloride.Type: GrantFiled: September 12, 1989Date of Patent: January 8, 1991Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Eiji Sogabe, Takeshi Ebara
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Patent number: 4981930Abstract: A method of producing a polyolefin. An olefin is polymerized in the presence of a catalyst containing (A) a catalyst component containing magnesium, titanium, halogen and an electron donor, (B) an organoaluminum compound and (C) an external electron donor which is an ether compound (C.sup.1) of the formula [1a]: ##STR1## or formula [1b]: ##STR2## wherein R.sup.1, R.sup.2, R.sup.4 and R.sup.7 are saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbon atoms; R.sup.3 and R.sup.6 are a hydrogen atom or a saturated or unsaturated aliphatic hydrocarbyl group having 1 to 7 carbons and R.sup.5 is a divalent aliphatic hydrocarbyl group having 1 to 7 carbon atoms. The catalyst used in the polymerization may also contain a carboxylate, organosilicon compound and/or an azo compound.Type: GrantFiled: March 22, 1988Date of Patent: January 1, 1991Assignee: Idemitsu Petrochemical Company LimitedInventors: Hideo Funabashi, Akira Tanaka, Rikuo Ohnishi
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Patent number: 4980329Abstract: Disclosed is a component for a catalyst for the polymerization of alpha-olefins to stereoregular polymers having narrow molecular weight distribution. The product is formed by the reaction of a solid catalyst-forming component comprising (1) a Ti compound having at least one Ti-halogen bond and (2) optionally, an electron-donor compound, supported on an anhydrous Mg dihalide in active form, with certain amounts of an organic compound (AH) containing at least one active hydrogen atom, in the presence of a liquid medium which is inert with respect to the Ti compound and the other components of the catalyst component, and which has a dielectric constant greater than 2 at 20.degree. C.Catalysts comprising the reaction product of the solid catalyst component prepared as above described, with an Al-alkyl compound and an electron-donor compound are also disclosed.Type: GrantFiled: May 15, 1989Date of Patent: December 25, 1990Assignee: Himont IncorporatedInventors: Pier C. Barbe, Enrico Albizzati, Umberto Giannini, Giovanni Baruzzi, Luciano Noristi
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Patent number: 4978648Abstract: Catalysts for the polymerization of olefins, particularly alpha-olefin of the formula CH.sub.2 .dbd.CHR in which R is an alkyl radical with 1-6 carbon atoms or an aryl radical, obtained by the reaction of:(a) an Al-alkyl compound;(b) an ether containing at least two ether groups which can form complexes with anhydrous magnesium dichloride, under standard conditions of reaction, in an amount less than 60 mmol per 100 g Mg dichloride; and(c) a solid catalyst component comprising an anhydrous magnesium dihalide in active form and having supported thereon a titanium compound containing at least a Ti-halogen bond and an electron-donor compound which is at least 70 mole % extractable with Al-triethyl, under standard conditions of extraction, component wherein the solid, after extraction, has a surface area of more than 20 m.sup.2 g.Type: GrantFiled: September 27, 1989Date of Patent: December 18, 1990Assignee: Himont IncorporatedInventors: Pier C. Barbe, Luciano Noristi, Raimondo Scordamaglia, Luisa Barino, Enrico Albizzati, Umberto Giannini, Giampiero Morini
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Patent number: 4971937Abstract: Solid catalyst components for the polymerization of olefins and modified with electron-donor compounds, comprising a titanium halide supported on a magnesium dihalide in active form and containing as an electron-donor compound a di- or other polyether having specific reactivity characteristics towards MgCl.sub.2 and TiCl.sub.4.Type: GrantFiled: September 27, 1989Date of Patent: November 20, 1990Assignee: Himont IncorporatedInventors: Enrico Albizzati, Pier C. Barbe, Luciano Noristi, Raimondo Scordamaglia, Luisa Barino, Umberto Giannini, Giampiero Morini
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Patent number: 4971936Abstract: A catalyst component and catalyst composition useful in the production of elastomeric, primarily isotactic polypropylene and polybutene is disclosed and it comprises the reaction product of a magnesium alkoxide compound and a tetravalent titanium halide wherein the reaction takes place in the presence of an electron donor selected from the group consisting of veratrole and derivatives thereof. The invention also relates to a process for producing such polymers using the above catalyst.Type: GrantFiled: July 10, 1989Date of Patent: November 20, 1990Assignee: Shell Oil CompanyInventors: Stanley E. Wilson, Robert C. Job
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Patent number: 4970187Abstract: A method for producing a olefin polymer, which comprises polymerizing or copolymerizing olefins in the presence of a catalyst comprising:(A) a solid catalyst component obtained by thermally reacting (a.sub.1) a magnesium compound of the formula Mg(OR.sup.1).sub.n (OR.sup.2).sub.2-n wherein each of R.sup.1 and R.sup.2 which may be the same or different is an alkyl group, and aryl group or an aralkyl group, and n is 2.gtoreq.n.gtoreq.0, (a.sub.2) a titanium compound of the formula Ti(OR.sup.3).sub.4 wherein R.sup.3 is an alkyl group, an aryl group or an aralkyl group and (a.sub.3) a silicon compound of the formula Si(OR.sup.4).sub.4 wherein R.sup.4 is an alkyl group, an aryl group or an aralkyl group and contacting and treating (a) the resulting thermal reaction product with (b) a halogen-containing titanium compound and (c) an electron donative compound, and(B) an organometallic compound of a metal of Groups I-III of the Periodic Table.Type: GrantFiled: November 9, 1989Date of Patent: November 13, 1990Assignee: Mitsubishi Kasei CorporationInventors: Yoshinori Suga, Eiji Tanaka, Yasuo Maruyama
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Patent number: 4960741Abstract: A process of the Ziegler-Natta type is prepared using a preactivated support containing (A) from 80 to 95 mol % of magnesium chloride and (B) 5 to 20 mol % of at least one electron donor compound which contains no labile hydrogen and no ester function; the preactivated support consisting of spherical particles having a mass average diameter, Dm of 10 to 100 microns and a particle size distribution Dm/Dn of less than 2. The catalyst is prepared by (i) treating the preactivated support with at least one electron donor compound containing labile hydrogen, (ii) treating the resulting activated support with at least one ester of an aromatic acid, (iii) impregnating the treated support with titanium tetrachloride and (iv) after washing the impregnated catalyst activating it with titanium tetrachloride. The catalyst has a high titanium content and a high activity when used to polymerize olefins.Type: GrantFiled: February 22, 1989Date of Patent: October 2, 1990Assignee: BP Chemicals LimitedInventors: Jean-Claude A. Bailly, Stylianos Sandis
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Patent number: 4954471Abstract: Disclosed is a homogeneous vanadium catalyst composition prepared by the reaction of an alkylaluminum dihalide with a solid reaction product produced by reacting (A) a silicon alkoxide, (B) a hydrocarbon soluble vanadium compound, and (C) a trialkylaluminum. The solid reaction product may be produced by complexing the (A) silicon alkoxide first with either the (B) vanadium compound or the (C) trialkylaluminum. The intermediate complex (I) of such reaction is then treated with the remaining reagent (either the vanadium compound or the trialkylaluminum as the case may be) whereupon the solid reaction product (II) is formed. The solid reaction product (II) of the silicon alkoxide-vanadium compound/trialkylaluminum reaction is then reacted with (D) an alkylaluminum dihalide to produce a homogeneous hydrocarbon soluble product (III) which is highly active for catalyzing the polymerization of olefins to a polyolefin having a narrow molecular weight distribution.Type: GrantFiled: November 28, 1988Date of Patent: September 4, 1990Assignee: Exxon Chemical Patents Inc.Inventor: Steven A. Best
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Patent number: 4952649Abstract: A solid titanium catalyst component (A) of a catalyst system useful in the polymerization of olefins or copolymerization of two or more olefins or one or more olefins and a diene is prepared by contacting a liquid hydrocarbon solution of (i) a magnesium compound, such as magnesium chloride, with (ii) a liquid titanium compound, such as TiCl.sub.4, or a solution of a titanium compound in a hydrocarbon solvent, to form a solid product. The solid product is formed in the presence of (D) an electron donor, e.g. methyl formate, acetic acid, acetic anhydride, acetone, methyl ether, butyl Cellosolve, dimethyl carbonate, methyl silicate. The solid product is also contacted with a polycarboxylic acid ester, e.g. diethyl methylsuccinate. The polymerization or copolymerization of the olefin is carried out in the presence of the solid titanium catalyst (A) and (B) an organometallic compound of a Group I to III metal and (C) an organic silicon compound having an Si--O--C bond.Type: GrantFiled: March 11, 1988Date of Patent: August 28, 1990Assignee: Mitsui Petrochemical Industries, Ltd.Inventors: Mamoru Kioka, Norio Kashiwa
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Patent number: 4948771Abstract: A catalyst composition comprising:(i) a complex comprised of V.sub.2 X.sub.3 (ED).sub.m and AlCl.sub.2 R.sub.2 whereinX=Cl, Br, or I, or mixtures thereofED=an electron donor, which is an ether, a phosphine, a ketone, an isocyanide, or an ester, said electron donor having 2 to 20 carbon atomsR=an alkyl having up to 14 carbon atomsm=an integer from 3 to 6,said complex impregnated into an inorganic oxide support;(ii) sufficient trialkylaluminum compound adsorbed on the inorganic oxide support to provide a molar ratio of adsorbed trialkylaluminum compound to vanadium of about 2.5:1 to about 10:1;(iii) a halocarbon promoter; and(iv) a hydrocarbyl aluminum cocatalyst.Type: GrantFiled: December 7, 1988Date of Patent: August 14, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventor: Francis G. Stakem
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Patent number: 4946816Abstract: In a solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprising the product formed by (A) forming a solution of a magnesium-containing species from a magnesium alkyl (or hydrocarbyl) carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing toluene-based solvent by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic either; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor, the morphology of such component is modified by incorporating a morphology-affecting amount of C.sub.8 -C.sub.10 aromatics within the toluene-based solvent in Step B, Step A, in Step C prior to addition of ether, or combinations thereof.Type: GrantFiled: August 21, 1989Date of Patent: August 7, 1990Assignee: Amoco CorporationInventors: Steven A. Cohen, Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee
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Patent number: 4945142Abstract: A catalyst and method is provided for the production of ultra-high molecular weight polymers characterized as having an inherent viscosity of above 12.0 by contacting ethylenically unsaturated monomers with a dual electron donor catalyst under polymerization conditions.Type: GrantFiled: November 14, 1988Date of Patent: July 31, 1990Assignee: Conoco Inc.Inventors: Donald E. Gessell, Donald P. Hosman
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Patent number: 4940682Abstract: A solid catalyst component for olefin polymerization which comprises a catalyst component comprising at least titanium and chlorine fixed onto a porous substance of which the pore volume, at a pore radius in a range of from 200 to 2,000 .ANG., is 0.3 cc/g or more, said pore volume is 35% or more of the pore volume at a pore radius in a range of from 35 to 75,000 .ANG., the average particle diameter is from 5 to 300 .mu.m, the geometrical standard deviation of the particle size distribution is 2 or less and the solubility in toluene at 100.degree. C. is 30 wt. % or less.Type: GrantFiled: October 26, 1988Date of Patent: July 10, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Takeshi Ebara, Kiyoshi Kawai
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Process for the production of polyethylene with a broad and/or bimodal molecular weight distribution
Patent number: 4918038Abstract: A process for the production of an ethylene homopolymer or copolymer comprising passing ethylene with or without at least one alpha-olefin comonomer having 3 or more carbon atoms into contact with a mixed catalyst system, under polymerization conditions, said mixed catalyst system comprising:(a) the reaction product of (i) a vanadium halide having the formula VX.sub.3 wherein X is chlorine, bromine, or iodine and each X is alike or different; (ii) a modifier having the formula BX.sub.3 or AlR.sub.(3-a) X.sub.a and (iii) an electron donor(b) one of the following:(i) a complex having the formula ZrMg.sub.b X.sub.c (ED).sub.d ; or(ii) a vanadium oxy compound having the formula VOX.sub.3, VOX.sub.2, VOX, or VO.sub.2 X wherein X is as defined above, or VO(OR).sub.3(c) a hydrocarbyl aluminum cocatalyst; and(d) a halocarbon promoter having the formula R.sub.e CX.sub.Type: GrantFiled: October 29, 1987Date of Patent: April 17, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventors: Sari-Beth Samuels, Frederick J. Karol -
Patent number: 4916099Abstract: A solid catalyst component for olefin copolymerization containing trivalent titanium compound, which is obtained by reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n (wherein R.sup.1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n.ltoreq.4) with an organomagnesium compound in the presence of a porous carrier having a pore volume of, at pore radius of 50 to 5,000 .ANG., at least 0.2 ml/g, or in the presence of an organosilicon compound having at least one Si-O bond and the porous carrier to obtain a solid product, treating the solid product with a mixture of an ether compound and titanium tetrachloride, a catalyst system for olefin copolymerization comprising the above-mentioned solid catalyst component and an organoaluminum compound, as well as a process for olefin copolymerization using said catalyst system.Type: GrantFiled: August 29, 1988Date of Patent: April 10, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Yoshihiro Miyoshi, Takeshi Ebara, Kiyoshi Kawai
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Patent number: 4914069Abstract: Solid catalyst components for use in the polymerization of olefins and having improved activity and selectivity are prepared by:(a) halogenating a magnesium compound containing at least one aryloxy, alkyl carbonate or alkyloxy group with a first halide of tetravalent titanium and a first electron donor;(b.sub.1) contacting the resulting halogenated product with a second halide of tetravalent titanium; and(c) washing a resulting treated halogenated product with an inert hydrocarbon liquid, wherein a second electron donor is used in step (a) or step (b.sub.1) and in that the product of step (b.sub.1) is contacted in a step b.sub.2 with a third halide of tetravalent titanium at a temperature of 40.degree. to 140.degree. C. and thereafter the treated product is washed in step (c).Type: GrantFiled: August 8, 1988Date of Patent: April 3, 1990Assignee: Shell Oil CompanyInventors: Robert C. Job, Steven M. Nestlerode
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Patent number: 4912074Abstract: There is disclosed a catalyst composition for the polymerization of olefins, particularly alpha-olefins. The composition is prepared by synthesizing a catalyst precursor and then combining it with a conventional catalyst activator. The precursor is synthesized by: (a) contacting a solid, porous carrier with an aluminum compound; (b) contacting the resulting product with a mixture of vanadium and titanium compounds; and, (c) contacting the product with an ether.The catalyst composition is used with a conventional activator and, preferably, a halogenating agent in the polymerization medium to produce broad molecular weight distribution, high molecular weight HDPE or medium density, broad molecular weight distribution, high molecular weight resins which can be made into high strength films.Type: GrantFiled: October 5, 1988Date of Patent: March 27, 1990Assignee: Mobil Oil CorporationInventor: Nemesio D. Miro
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Patent number: 4904628Abstract: Catalysts for the polymerization of alpha-olefins, which comprise the product of the reaction between:(a) a metallorganic compound of Al;(b) an electron-donor compound reactive towards MgCl.sub.2 but which is not completely complexed with AlEt.sub.3, at the equivalent point of a potentiometric titration under standard conditions;(c) a solid comprising a halogenated Ti compound and an electron-donor belonging to particular classes of compounds and being extractable with AlEt.sub.3 for at least 70% by mols from the solid, the surface area of which after extraction is higher than 20 m.sup.2 /g.The present invention refers to new supported components of catalysts for the polymerization of olefins CH.sub.2 .dbd.CHR, in which R is an alkyl with 1-4 carbon atoms or an aryl, and of mixtures of such olefins with each other and/or with ethylene, and to the catalysts obtained from such components.Type: GrantFiled: January 28, 1988Date of Patent: February 27, 1990Assignees: Montedison S.p.A., Mitsui Petrochemical Ind.Inventors: Enrico Albizzati, Sandro Parodi, Pier C. Barbe
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Patent number: 4904630Abstract: A catalyst for olefin polymerization which comprises:Component (A) which is a solid catalyst component obtained by contacting the following components (i) to (iv):(i) a solid component comprising titanium, magnesium and halogen as essential elements,(ii) a silicon compound represented by the formula (I):R.sup.1.sub.m X.sub.n Si(OR.sup.2).sub.4-m-n (I)wherein R.sup.1 and R.sup.2 each represent a hydrocarbon residue, X represents a halogen, and each of m and n is an integer in the range of 0.ltoreq.m.ltoreq.3, 0.ltoreq.n.ltoreq.3, and 0.ltoreq.m+n.ltoreq.3,(iii) a titanium compound or a silicon compound represented by the formula (II) or (III):Ti(OR.sup.3).sub.4-l X.sub.l (II)R.sup.4.sub.4-l SiX.sub.l (III)wherein R.sup.3 represents a hydrocarbon residue, R.sup.4 represents hydrogen or a hydrocarbon residue, X represents a halogen, and l is an integer in the range of 0<l.ltoreq.4, and(iv) an organoaluminum compound; andComponent (B) which is an organoaluminum compound.Type: GrantFiled: July 12, 1988Date of Patent: February 27, 1990Assignee: Mitsubishi Petrochemical Company Ltd.Inventors: Mitsuyuki Matsuura, Takashi Fujita
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Patent number: 4900706Abstract: A solid catalyst component for .alpha.-olefin polymerization containing as catalyst components at least titanium, magnesium and chlorine which are impregnated into an organic porous polymer carrier having a mean particle diameter of 5 to 1,000 .mu.m and a pore volume of 0.1 ml/g or above at a pore radius of 100 to 5,000 .ANG., a catalyst system comprising at least said solid catalyst component (A) and an organoaluminum compound (B), as well as a process for producing .alpha.-olefin polymers using said catalyst system.Type: GrantFiled: March 11, 1988Date of Patent: February 13, 1990Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Takeshi Ebara, Hiroyuki Kora, Kiyoshi Kawai, Mituharu Yamasaki, Syozo Kawamata
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Patent number: 4892853Abstract: A vanadium catalyst composition comprising:(i) the reaction product of a vanadium compound and an electron donor, which is a liquid, organic Lewis base in which the vanadium compound is soluble;(ii) a hydrocarbyl aluminum cocatalyst; and(iii) a promoter having the following formula:C.sub.3 (X).sub.a (F).sub.b (H).sub.Type: GrantFiled: September 30, 1988Date of Patent: January 9, 1990Assignee: Union Carbide Chemicals and Plastics Company Inc.Inventors: Kevin J. Cann, Frederick J. Karol, Kiu H. Lee, Arthur E. Marcinkowsky
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Patent number: 4888318Abstract: A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobutylaluminum.Type: GrantFiled: December 24, 1987Date of Patent: December 19, 1989Assignee: Mobil Oil CorporationInventors: Luanne M. Allen, Robert O. Hagerty, Richard O. Mohring
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Patent number: 4876229Abstract: An olefin, particularly alpha-olefin, supported catalyst composition, containing a transition metal or a compound thereof and an activator, has an average pore diameter of about 20 to about 300 Angstroms, at a substantially constant catalyst particle size for a given range of average pore diameters. The catalyst produces polymers having gradually decreasing molecular weight distribution with decreasing pore size of the catalyst at a constant particle size.Type: GrantFiled: May 31, 1988Date of Patent: October 24, 1989Assignee: Mobil Oil CorporationInventor: Allan B. Furtek
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Patent number: 4866022Abstract: A solid hydrocarbon-insoluble, alpha-olefin polymerization catalyst component with superior activity, stereospecificity and morphology characteristics comprises the product formed by (A) forming a solution of a magnesium-containing species from a magnesium carbonate or a magnesium carboxylate; (B) precipitating solid particles from such magnesium-containing solution by treatment with a transition metal halide and an organosilane; (C) reprecipitating such solid particles from a mixture containing a cyclic ether; and (D) treating the reprecipitated particles with a transition metal compound and an electron donor.Type: GrantFiled: April 25, 1988Date of Patent: September 12, 1989Assignee: Amoco CorporationInventors: Gregory G. Arzoumanidis, Nicholas M. Karayannis, Habet M. Khelghatian, Sam S. Lee, Bryce V. Johnson
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Patent number: 4855272Abstract: Solid components of catalysts for the (co)polymerization of ethylene, or precursors of such components are prepared by treating an (a) emulsion in a perfluoropolyether of a liquid compound of magnesium, of titanium or of another transition metal, or of solutions thereof, possibly using an electron-donor compound, with (b) a reducing and/or halogenating agent capable of forming an insoluble solid product, after which, if such a product is a precursor of the catalytic component, it is treated with a tetravalent-titanium halide, or with a halide of another transition metal.Type: GrantFiled: July 25, 1988Date of Patent: August 8, 1989Assignee: Montedison S.p.A.Inventor: Enrico Albizzati
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Patent number: 4845067Abstract: A vanadium-based catalyst is treated with certain oxygen-containing compounds as a means of narrowing and effectively regulating the molecular weight distribution of the polymers produced with the catalyst.Type: GrantFiled: July 1, 1988Date of Patent: July 4, 1989Assignee: Union Carbide CorporationInventors: Sun-Chueh Kao, Kevin J. Cann, Frederick J. Karol, Arthur E. Marcinkowsky, Mark G. Goode, Eugene H. Theobald
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Patent number: 4845177Abstract: Ethylene is polymerized using a Ziegler catalyst system consisting of (1) a titanium catalyst component and (2) an aluminum catalyst component, the component (1) used being the product (VI) which is obtained by a method in which (1.1) first (1.1.1) a carrier (I) and (1.1.2) a solution (II) of (IIa) a solvent, (IIb) a titanium trichloride and (IIc) magnesium chloride are combined with formation of a dispersion (III) and the latter is evaporated down with formation of an intermediate (IV), and (1.2) then (1.2.2) the intermediate (IV) obtained from (1.1), and (1.2.2) an aluminum component (V) consisting of (1.2.2.1) a complex of a certain oxacycloalkane and a certain aluminum compound and (1.2.2.2) if necessary, a certain free aluminum compound are combined, the resulting product (VI) being the catalyst component (1). In this process, a component (1) is employed which has been prepared using, in (1.1) under (1.1.Type: GrantFiled: October 14, 1987Date of Patent: July 4, 1989Assignee: BASF AktiengesellschaftInventors: Heinz Vogt, Eckard Schauss, Guenther Schweier
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Patent number: 4829038Abstract: An olefin polymerization catalyst system comprises a solid, hydrocarbon-insoluble, magnesium-containing, titanium-containing, electron donor-containing component; an alkyl aluminum compound; and organosilane compound selected from the group consisting of diisobutyldimethoxysilane, diisopropyldimethoxysilane, t-butyltrimethoxysilane and di-t-butyldimethoxysilane, and mixtures thereof.Type: GrantFiled: April 25, 1988Date of Patent: May 9, 1989Assignee: Amoco CorporationInventors: Charles R. Hoppin, Benjamin S. Tovrog
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Patent number: 4822763Abstract: A catalyst component for polymerization of olefin, comprising a contact product of a component (A) which is a solid component containing titanium having at least one OR.sup.1 group (where R.sup.1 represents a hydrocarbon residue) and magnesium and a halogen as the essential components; a component (B) which is an acid halide compound; a component (C) which is a compound having an OR.sup.2 group (where R.sup.2 represents a hydrocarbon residue or hydrogen atom); and a component (D) which is a halide compound of silicon. When an olefin is polymerized by use of this as the transition metal component of a Ziegler type catalyst, an olefin polymer with high activity and high I.I and excellent polymer properties can be obtained.Type: GrantFiled: June 18, 1987Date of Patent: April 18, 1989Assignee: Mitsubishi Petrochemical Company LimitedInventors: Mitsuyuki Matsuura, Takashi Fujita
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Patent number: 4806433Abstract: A solid catalyst component containing a trivalent titanium compound, obtained by reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n (wherein R.sup.1 is a hydrocarbon group of 1 to 20 carbon atoms, X is a halogen atom, and n is a number satisfying 0<n.ltoreq.4) with an organomagnesium compound in the presence of an alcohol compound and/or a phenol compound to obtain a solid product and then treating the solid product with a mixture of an ether compound and titanium tetrachloride; a catalyst system comprising:(A) said solid catalyst component, and(B) an organoaluminum compound; and a process for producing an olefin polymer, which comprises homopolymerizing an olefin or copolymerizing olefins using said catalyst system.Type: GrantFiled: May 11, 1987Date of Patent: February 21, 1989Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Takeshi Ebera, Kiyoshi Kawai, Akinobu Shiga
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Patent number: 4804798Abstract: Polymers of alpha-olefins of formulaR--CH.dbd.CH.sub.2wherein R=alkyl of from 1 to 6 C atoms, or of their mixtures with minor amounts of ethylene are obtained by adopting catalysts comprising:(A) a solid component obtained by treating an emulsion (a) in a perfluoropolyether liquid of a liquid compound of magnesium, of titanium or of another transition metal, either liquid or in solution, with possibly using an electron-donor compound, with (b) a reducing and/or halogenating agent capable of forming an insoluble solid product, after which, if such a product is a precursor of the catalytic components, it is treated with a tetravalent-titanium halide, or with a halide of another transition metal;(B) an aluminum-alkyl compound;(C) an outer electron-donor compound (c).Type: GrantFiled: July 27, 1987Date of Patent: February 14, 1989Assignee: Montedison S.p.A.Inventor: Enrico Albizzati
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Patent number: 4804648Abstract: Crystalline magnesium olefin polymerization catalyst components capable of producing polymer with improved activity and morphological properties are disclosed and claimed. In particular, the components are prepared by reacting a crystalline alkoxy magnesium compound with a halide of tetravalent titanium.Type: GrantFiled: November 24, 1987Date of Patent: February 14, 1989Assignee: Shell Oil CompanyInventor: Robert C. Job
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Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
Patent number: 4780441Abstract: A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound, an external electron donor, and a solid catalyst component obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by(a) dissolving or suspending a magnesium compound in ethanol or water,(b) adding to the solution or suspension, hydrochloric acid in a substantially stoichiometric quantity to the magnesium, to completely dissolve the same,(c) drying the magnesium solution with the aid of periodic azeotropic distillation, and(d) precipitating the solid carrier component from the thus-dried solution.Type: GrantFiled: April 1, 1987Date of Patent: October 25, 1988Assignee: Neste OyInventor: Thomas Graroff -
Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
Patent number: 4780439Abstract: A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound, an external electron donor, and a solid catalyst compound obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by(a) dissolving, in hydrochloric acid, a magnesium compound selected from the group consisting of magnesium hydroxide, magnesium carbonate, magnesium oxide, and natural and/or synthetic minerals containing the same,(b) evaporating the solution until dry,(c) heating the obtained salt mixture at 130.degree. to 150.degree. C.Type: GrantFiled: April 1, 1987Date of Patent: October 25, 1988Assignee: Neste OyInventor: Thomas Garoff -
Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
Patent number: 4780440Abstract: A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound, an external electron donor, and a solid catalyst compound obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by:(a) mixing an aqueous solution or alcoholic suspensions of magnesium sulfate with an equeous or alcoholic solution of barium or calcuim chloride,(b) separating the undissolved material therefrom,(c) evaporating the remaining solution until dry,(d) heating the obtained residue at 130.degree. to 150.degree. C.Type: GrantFiled: April 1, 1987Date of Patent: October 25, 1988Assignee: Neste OyInventor: Thomas Garoff -
Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
Patent number: 4780442Abstract: A catalyst component for alpha olefine-polymerizing catalysts which comprise an organoaluminum compound, an external electron donor, and a solid catalyst compound obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by(a) precipitating a water-soluble magnesium compound from an aqueous solution thereof by adding an alkali thereto,(b) separating the thus-precipitated magnesium component and dissolving the same in hydrochloric acid,(c) evaporating the solution until dry,(d) heating the obtained salt mixture at 130.degree. to 150.degree. C.Type: GrantFiled: April 1, 1987Date of Patent: October 25, 1988Assignee: Neste OyInventor: Thomas Garoff -
Patent number: 4780443Abstract: The present invention relates to an improvement of the known Ziegler catalyst which comprises a combination of a titanium-containing component and an organoaluminum component, and the present invention is characterized by a specific titanium-containing component. Namely, this titanium-containing component is obtained by contacting a known titanium-containing component of the Ziegler type catalyst which comprises Ti, Mg and a halogen, with an alkoxyalkylsilane compound which is characterized in that at least one of the alkyl groups has a branched structure. This catalyst does not require a so-called external electron donor, and no reduction of the polymerization velocity caused by the use of the electron donor is entailed. When this catalyst is used, a propylene/ethylene block copolymer in which the molecular weight of the propylene/ethylene copolymer portion and/or the polyethylene portion is increased, that is, the rigidity and impact strength are increased, can be prepared.Type: GrantFiled: February 2, 1987Date of Patent: October 25, 1988Assignee: Mitsubishi Petrochemical Company LimitedInventors: Mitsuyuki Matsuura, Takashi Fujita
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Catalyst component for alpha olefine-polymerizing catalysts and procedure for manufacturing the same
Patent number: 4780438Abstract: A catalyst component for alpha olefine-polymerizing catalysts which comprise an organo-aluminum compound, an external electron donor, and a solid catalyst component obtained when a solid carrier component containing magnesium has reacted with a titanium halide compound, in addition to a procedure for manufacturing the same. The catalyst component is produced by reacting a solid carrier component with a titanium halide compound with or without the presence of an internal electron donor. The solid carrier component is prepared by(a) dissolving a natural or synthetic mineral containing magnesium and aluminum in hydrochloric acid,(b) evaporating the solution until dry,(c) calcinating the obtained salt mixture from the evaporated solution by heating the same at a temperature of about 130.degree.-150.degree. C.Type: GrantFiled: April 1, 1987Date of Patent: October 25, 1988Assignee: Neste OyInventors: Thomas Garoff, Barbro Lofgren, Luciano Luciani -
Patent number: 4771023Abstract: Olefin polymers are produced by a process which comprises homopolymerizing or copolymerizing olefins in the presence of a catalyst system comprising:(A) a solid catalyst component containing a trivalent titanium compound, which is obtained by reducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n (wherein R.sup.1 is a hydrocarbon group having 1 to 20 carbon atoms, X is a halogen atom and n is a number satisfying 0<n.ltoreq.4) with an organo magnesium compound and then treating the resulting solid product with a mixture of an ether compound and titanium tetrachloride, and(B) an organo aluminum compound.The above-mentioned reducing of a titanium compound with an organo magnesium compound may be performed in the presence of an organo silicon compound having Si--O bonds.Type: GrantFiled: June 11, 1986Date of Patent: September 13, 1988Assignee: Sumitomo Chemical Company, LimitedInventors: Toshio Sasaki, Masaaki Katao, Kiyoshi Kawai, Akinobu Shiga
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Patent number: 4762898Abstract: A process for polymerizing or copolymerizing ethylene comprises contacting ethylene or ethylene and at least one of .alpha.-olefins with a catalyst consisting essentially of a combination of (A) a solid catalyst component containing at least titanium, magnesium and chlorine, (B) an organoaluminum compound, and (C) an organic compound selected from the group consisting of a compound having P-O-C bond, a compound having B-O-C bond and a compound having C-O-R bond, at a temperature not lower than 125.degree. C. and under a pressure not lower than 200 kg/cm.sup.2.Type: GrantFiled: September 28, 1987Date of Patent: August 9, 1988Assignee: Mitsubishi Petrochemical Company LimitedInventors: Mitsuyuki Matsuura, Katsumi Hirakawa
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Patent number: 4761392Abstract: A process for producing an olefin polymer which comprises the homopolymerizing or copolymerizing an olefin in the presence of a catalyst system composed of an organoaluminum compound and a hydrocarbyloxy group-containing solid catalyst component which is prepared byreducing a titanium compound represented by the general formula Ti(OR.sup.1).sub.n X.sub.4-n, wherein R.sup.1 is a C.sub.1 -C.sub.20 hydrocarbon radical, X is halogen, and n is a number defined as 0<n.ltoreq.4, with an organoaluminum compound represented by the general formula AlR.sup.2.sub.m Y.sub.3-m, wherein R.sup.2 is a C.sub.1 -C.sub.20 hydrocarbon radical, Y is halogen, and m is a number defined as 1.ltoreq.m.ltoreq.3,subjecting the reduction product, which is a hydrocarbyloxy group-containing solid insoluble in hydrocarbon solvents, to a preliminary ethylene polymerization treatment, andtreating the resultant solid in a state of slurry in a hydrocarbon solvent with an ether compound and titanium tetrachloride at a temperature of 30.Type: GrantFiled: November 12, 1986Date of Patent: August 2, 1988Assignee: Sumitomo Chemical Company, LimitedInventors: Akinobu Shiga, Toshio Sasaki, Junpei Kojima
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Patent number: 4737481Abstract: A process for producing catalyst ingredient for use in olefin polymerization which comprises contacting (A) a magnesium hydrocarbyloxide and (B) a silicon compound having hydrogen-silicon bonds in the presence of a hydrocarbon medium, contacting the thus obtained solid product (C) a halogenated titanium compound in the presence or absence of a hydrocarbon medium and then adding to contact (D) an electron donating compound.Type: GrantFiled: December 17, 1986Date of Patent: April 12, 1988Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Masahide Murata, Hiroyuki Furuhashi, Masafumi Imai, Hiroshi Ueno
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Patent number: 4732882Abstract: A catalyst composition for polymerizing alpha-olefins is prepared by reacting a transition metal compound, e.g., titanium, with trimethylaluminum catalyst activator. In a preferred embodiment, the catalyst is supported on a porous refractory support and is prepared by additionally reacting a magnesium compound or an organomagnesium composition with the support.Also disclosed is a process for polymerizing alpha-olefins in the presence of the catalyst of the invention. The polymer products have higher bulk density and produce films of greater strength than polymers prepared with similar catalysts utilizing different alkyl-aluminum activators, e.g., triethylaluminum and tri-isobutylaluminum.Type: GrantFiled: January 24, 1986Date of Patent: March 22, 1988Assignee: Mobil Oil CorporationInventors: Luanne M. Allen, Robert O. Hagerty, Richard O. Mohring
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Patent number: 4727049Abstract: A catalyst component for the polymerization of olefins which is prepared by contacting (1) a contact reaction product of (a) a metal oxide, (b) a dihydrocarbyl magnesium, and (c) a halogen-containing alcohol held with (d) an electron-donating compound, and (e) a titanium compound.Type: GrantFiled: July 5, 1985Date of Patent: February 23, 1988Assignee: Toa Nenryo Kogyo Kabushiki KaishaInventors: Hiroyuki Furuhashi, Tadashi Yamamoto, Masafumi Imai, Hiroshi Ueno
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Patent number: 4727051Abstract: Compositions having the formulaX.sub.n Mg(OR).sub.2-nin which X is chloro, bromo or iodo; R is a C.sub.1 -C.sub.10 alkyl group and n is a value from about 0.2 to about 1.9 are produced by a process comprising preparing an alkanol adduct of a magneisum halide, reacting the product of this step with metallic magnesium, and drying the product. The compositions are useful as olefin polymerization catalyst components and supports.Type: GrantFiled: December 15, 1986Date of Patent: February 23, 1988Assignee: Stauffer Chemical CompanyInventors: Michael J. Breen, Dennis B. Malpass
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Patent number: 4724225Abstract: A solid catalyst component which can produce .alpha.-olefin polymers having a high stereoregularity and a good powder fluidity, stably and with a good efficiency in gas phase polymerization, particularly in gas phase copolymerization, a catalyst for .alpha.-olefin polymerization using the above solid catalyst component and a process for producing the above catalyst component, are provided,which solid catalyst component is charcterized in that it contains titanium as an active ingredient and is in the form of hollow fine particles, andwhich process is characterized by adding a reaction product (I) of an organoaluminum compound (A) with an electron dnor (B.sub.1) to TiCl.sub.4 and reacting these under agitation in a baffle ratio of 0.35 or less with a power required for agitation of 2.50 KW/m.sup.3 or less at a temperature of 0.degree. to 70.degree. C. for a period of 1 to 10 hours and further reacting an electron donor (B.sub.Type: GrantFiled: November 28, 1986Date of Patent: February 9, 1988Assignee: Chisso CorporationInventors: Hiroshi Shimizu, Toshihiro Uwai, Masami Tachibana