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7582712 |
Alpha-olefins polymerization catalyst
Methods and apparatus to form a catalyst precursor, comprising combining in a reactor magnesium, an alkoxysilane compound, a halogenized silicon compound, a halogenized transition metal compound, a...
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7566676 |
Preparation method of solid titanium catalyst for olefin polymerization
The present invention relates to a preparation method of solid titanium catalyst for olefin polymerization comprising the steps of: (1) preparing a magnesium compound solution by dissolving a...
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7560521 |
Components and catalysts for the polymerization of olefins
A catalyst component for the polymerization of olefins comprising a titanium compound, a Mg-dihalide, a difunctional electron donor compound (ED) selected from diesters, diketones, diamines or...
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7544748 |
Components and catalysis for the polymerization of olefins
The present invention relates to a solid catalyst component for the polymerization of olefins CH 2 ═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti,...
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7427653 |
Catalyst components for the polymerization of olefins
A catalyst component for olefin (co)polymerization, and in particular for the preparation of LLDPE, comprising Mg, Ti, halogen and an electron donor compound (ED) belonging to ethers, esters,...
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7405176 |
Solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same
The present invention provides a high-activity solid main catalyst component for ethylene polymerization, a process for preparing the same and a catalyst containing the same. The main catalyst...
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7402638 |
Propylene polymer particle method of producing the same and use thereof
The present invention relates to a propylene random copolymer which satisfies the following requirements [1] to [4], and to various useful molded products obtained by molding the propylene random...
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7332455 |
Catalyst component and catalyst for olefin polymerization as well as use thereof
The present invention relates to a catalyst component and a catalyst for olefin polymerization. The catalyst component utilizes magnesium halide and silica as composite support, and the particle...
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7323431 |
Catalyst for olefin polymerization and use of the same
The present application discloses a catalyst for olefin polymerization, comprising a product of the following components: (A) solid titanium-containing catalyst component comprising magnesium,...
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7307035 |
Magnesium dichloride-alcohol adducts and catalyst components obtained therefrom
The present invention relates to an adduct comprising M g Cl 2 , an alcohol (ROH) in which R is a C1-C10 hydrocarbon group, and a compound containing a transition metal M selected from the Groups 3...
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7256151 |
Solid catalyst component for α-olefin polymerization, process for producing catalyst therefor, and process for producing α-olefin polymer
A solid catalyst component for α-olefin polymerization, which comprises a titanium atom, a magnesium atom, a halogen atom, a phthalic acid ester compound, and a 1,3-diether compound, wherein an...
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7232785 |
Solid catalytic component and catalytic system of the ziegler-natta type, process for their preparation and their use in the polymerization of alk-1-enes
The present invention relates to a new solid catalytic component, which can be used in combination with an aluminum compound as co-catalyst and optionally an external electron donor as additional...
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7223712 |
Catalyst component for the (CO)polymerization of olefins
An internal electron-donor compound selected from the 1,3-diethers of formula (I)
in which R is a C 1 –C 10 alkyl group, R 1 is a linear or branched primary alkyl radical having at least...
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7220696 |
Solid titanium catalyst component for olefin polymerization, catalyst for olefin polymerization, and process for olefin polymerization
Disclosed is a catalyst for olefin polymerization comprising [I] a solid titanium catalyst component [S] comprising titanium, magnesium, halogen and an electron donor (b), which is obtained by...
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7211535 |
Enhanced polyolefin catalyst
The present invention provides a novel process for preparing a catalyst useful in gas phase polymerization of olefins wherein the physical properties of the polymer and the productivity of the...
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7208436 |
Catalyst components for the polymerization of olefins
Catalyst components for the polymerization of olefins CH 2 ═CHR, wherein R is hydrogen or a hydrocarbon radical having 1–12 carbon atoms, comprising Mg, Ti, Cl, OR groups, where R is a C1–C10...
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7166682 |
Process to prepare a particulated metallocene catalyst with a modified aluminoxane and use in polymerization of olefins
A process for the preparation of an olefin polymerisation catalyst comprising: a) reacting an aluminoxane and a Lewis base in an optionally halogenated hydrocarbon solvent to form a particulate...
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7153804 |
Catalyst component for ethylene polymerization, the preparation thereof and catalyst comprising the same
The present invention provides a catalyst component for ethylene polymerization, a process for preparing the same, a catalyst comprising the same, and a process for polymerizing ethylene using the...
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7151071 |
Method for preparation of a solid titanium catalyst for olefin polymerization
The present invention relates to a method for preparing a solid titanium catalyst for olefin polymerization. The method for preparing a solid titanium catalyst for olefin polymerization according...
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7138469 |
Process for the polymerization of olefins
Process for the polymerization of olefins CH 2 ═CHR, in which R is hydrogen or a hydrocarbon radical with 1–12 carbon atoms, carried out in the presence of a catalyst component (A) comprising...
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7135532 |
Process for producing solid catalyst component and catalyst for α-olefin polymerization, and process for producing α-olefin polymer
There are disclosed a process for producing a solid catalyst component and a catalyst for α-olefin polymerization, and a process for producing an α-olefin polymer, wherein the process for...
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7129303 |
Method for producing homo- and co-polymers of ethylene
The present invention provides a method for producing homo- and co-polymers of ethylene, or more particularly a method for producing homo- and copolymers of ethylene in the presence of (a) a solid...
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7098164 |
Process for the polymerization of olefins
A process for the (co) polymerization of olefins of formula CH 2 ═CHR wherein R is a hydrogen atom, a methyl or an ethyl radical, carried out in the presence of a system comprising (a) solid...
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RE39246 |
Esterification catalysts and processes therefor and therewith
A catalyst composition is disclosed. The composition comprises a titanium compound, a complexing agent, hypophosphorous acid or its metal salt, water and optionally a solvent. The complexing agent...
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7091289 |
Solid catalyst component for polymerization of ethylene, preparation thereof and a catalyst containing the same
The present invention provides a catalyst component used for homopolymerization or co-polymerization of ethylene, comprising at least one suitable electron donor compound supported on a composition...
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7081505 |
Activating organometallic composition for the (co) polymerization of alpha-olefins comprising fluorinated cyclopentadienyl compounds
An organometallic composition which can be used as activating component in a metallocene catalyst for the (co)polymerization of α-olefins, comprises: (A) a fluorinated di-unsaturated cyclic...
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7049263 |
Process for producing catalyst for α-olefin polymerization and process for producing α-olefin polymer
There are provided a process for producing a catalyst for α-olefin polymerization, which comprises the step of contacting (1) a solid catalyst component having Ti, Mg and a halogen as essential...
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7045481 |
Nanocatalyst anchored onto acid functionalized solid support and methods of making and using same
Supported catalysts include a solid support such as silica that is functionalized to have inorganic acid functional groups attached thereto. Active catalyst particles are supported on the...
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7033970 |
Process for preparing a diether-based catalyst component
A process for preparing a diether-based catalyst component in which: a) a slurry is obtained by contacting a solid support comprising a magnesium halide or a precursor thereof, one or more...
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6998449 |
Latent metallocene catalyst systems for olefin polymerization
A metallocene catalyst may be temporarily and reversibly passivated by contact with an effective amount of a passivating compound selected from the group of oxygen, oxygen-containing compounds, and...
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6906154 |
Catalyst for the polymerization of olefins
The present invention relates to catalyst components for the polymerization of olefins comprising a titanium compound, having at least a Ti-halogen bond, and at least two electron donor compounds...
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6903041 |
Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer
There are provided;
(i) a solid catalyst component obtained by contacting a trivalent titanium atom-containing solid catalyst component precursor (C) with a halogeno compound (A) of the 13...
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6825146 |
Olefin polymerization catalyst compositions and method of preparation
A method of making a solid procatalyst composition for use in a Ziegler-Natta olefin polymerization catalyst composition, said method comprising: contacting a solid precursor composition...
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6818711 |
Polymerization of olefins using a ziegler-natta catalyst system having an external electron donor
A process for polymerizing olefins using a catalyst system comprising a conventional Ziegler-Natta catalyst and an external election donor selected from the group consisting of diethers and...
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6803427 |
Method for producing ethylene homo- and co-polymer
The present invention relates to a method for producing a polymer and copolymer of ethylene, and more particularly to a method for producing an ethylene polymer and copolymer by reacting a compound...
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6800580 |
Method for producing an improved catalyst for homo-and co-polymerization of olefin
The present invention relates to a solid complex titanium catalyst for homo-polymerization and co-polymerization of α-olefin, obtained by (i) producing a solution of a magnesium compound by...
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6784133 |
Method for preparing catalyst for olefin polymerization
Disclosed is a preparation method of titanium catalyst for olefin polymerization, the method comprising (1) preparing magnesium compound solution by resolving non-deoxidative magnesium halide and...
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6703456 |
Process for producing catalyst for α-olefin polymerization, and process for producing α-olefin polymer
A process (I) for producing an α-olefin polymerization catalyst whereby (1) a titanium compound is reduced by an organomagnesium compound in the presence of an organosilicon compound to produce a...
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6683018 |
Method for producing a supported catalyst system
A process for the preparation of a supported catalyst system, an inorganic carrier material being reacted with a metal compound of the formula M 1 (R 1 ) r (R 2 ) 5 (R 3 ) t (R 4 ) u I in the...
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6683017 |
Catalyst system for the (co) polymerization of olefins
A catalyst system for the (co)polymerization of propylene contains (A) a solid catalyst component comprising titanium, magnesium, halogen and a 1,3-diether; (B) an organic aluminum compound; and...
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6683139 |
Process for producing solid product, solid catalyst component, and catalyst for olefin polymerization, and process for producing olefin polymer
There are provided (1) a process for producing a solid product, which comprises the step of reducing a titanium compound represented by the following formula [I] with an organomagnesium compound in...
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6677266 |
Process for preparing a vanadium/titanium catalyst and use in olefin polymerization
There are described a process for preparing catalyst components comprising vanadium, titanium, electron donor and magnesium chloride, supported or unsupported; catalyst systems incorporating the...
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6664209 |
Solid catalyst component for propylene polymerization and catalyst
The present invention provides catalyst for polymerization of a propylene prepared from by using a solid catalyst component for polymerization of a propylene which is prepared by subjecting a...
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6649731 |
Catalysts for polyester production, process for producing polyester, and polyester
By the present invention, there are provided a catalyst for polyester preparation, which comprises a solid titanium compound containing titanium, oxygen, carbon and hydrogen and having a Ti—O...
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6617278 |
Catalyst system for use in ethylene polymerization and copolymerization and process for preparing the same
The present invention provides a catalyst system and processes for preparing the system for use in ethylene polymerization and copolymerization. The catalyst system is obtained by dissolving any...
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6559249 |
Catalyst for producing an ultrahigh molecular weight polyethylene (UHWMP) and method for producing an UHWMP using the same
The present invention provides a catalyst for producing an ultra high molecular weight polyethylene and also a method for preparation of an ultra high molecular weight polyethylene with the use of...
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6544920 |
Components and catalysts for the polymerization of olefins
Solid catalyst component for the polymerization of olefins, includes the product of the direct reaction, with no subsequent reactions with reducing organometallic compounds, between a titanium...
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6541411 |
Titanium/zirconium catalysts and their use to prepare esters or polyesters
The invention relates to novel titanium/zirconium catalysts, and to a process for the preparation of these titanium/zirconium catalysts. The process comprises reacting orthoesters or condensed...
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6538079 |
Process for producing catalyst for ethylene polymerization and process for producing ethylene polymer
There are disclosed: (1) a process for producing a catalyst for ethylene polymerization, which comprises the step of contacting with one another: (i) a solid catalyst component containing at least...
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6537942 |
Olefin polymerization catalyst and process for preparing polypropylene and propylene block copolymer
Olefin polymerization catalyests are formed from: (I-2) a contact product obtained by contacting (A) a solid titanium catalyst component, (B) an organometallic compound catalyst component, and (D)...
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