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7619048 |
Method for producing propylene polymer using alkoxysilane compound containing trialkysilyl group in molecular structure
Disclosed is a method for producing a propylene polymer using an alkoxysilane compound comprising a trialkylsilyl group in its molecular structure, specifically a method for easily producing an...
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7592286 |
Process for the preparation of a catalyst component and components therefrom obtained
A process for preparing a catalyst component, comprising a Mg compound a Ti compound and an electron donor compound (ED) selected from alcohol, glycols, esters, ketones, amines, amides, nitrites,...
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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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7544762 |
Catalyst for preparation of polyester and process for preparing polyester using the catalyst
A polyester having a good color tone (a high L value and a low b value) and a low acetaldehyde content is obtained by using a catalyst containing a reaction product of (A) a titanium compound (1)...
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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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7514386 |
Chlorinated promoters for vanadium-based polymerization catalysts
Promoters are described for vanadium-based catalysts used in the (co)polymerization of olefins and, in particular, in the production of ethylene/propylene (EPR) or ethylene/propylene/diene (EPDM)...
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7504352 |
Catalyst for propylene polymerization
A catalyst for use in the formation of polypropylene is disclosed that comprises a titanium compound having at least one titanium-halogen bond, supported on an activated, amorphous magnesium...
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7491670 |
Self limiting catalyst composition and propylene polymerization process
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of...
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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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7420021 |
Self-extinguishing catalyst composition with monocarboxylic acid ester internal door and propylene polymerization process
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters...
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7393910 |
Catalyst composition for ethylene polymerization
A process for the polymerization of olefin monomers comprising contacting ethylene or a mixture of ethylene and one or more C 4-8 α olefins with a catalyst composition comprising one or more...
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7393806 |
Catalyst composition with monocarboxylic acid ester internal donor and propylene polymerization process
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more monoesters...
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7388061 |
Solid catalyst component for polymerization of olefins, catalyst comprising the same and use thereof
The present invention provides a solid catalyst component for the polymerization of olefins, comprising magnesium, titanium, a halogen and an electron donor, wherein said electron donor comprises...
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7381779 |
Self limiting catalyst composition with dicarboxylic acid ester internal donor and propylene polymerization process
A catalyst composition for the polymerization of propylene comprising one or more Ziegler-Natta procatalyst compositions comprising one or more transition metal compounds and one or more esters of...
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7365039 |
Morphology controlled olefin polymerization process
A catalyst composition, method of formation and process of use in the polymerization of olefin monomers, said composition comprising a catalyst compound, an activator capable of converting said...
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7351778 |
Catalyst component for olefin polymerization and catalyst comprising the same
The present invention provides a catalyst component for polymerization of olefin CH 2 ═CHR, in which R is hydrogen or C 1 -C 12 alkyl or aryl, comprising magnesium, titanium, a halogen and an...
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7351678 |
Catalyst systems for Ziegler-Natta propene polymerisation
The invention relates to the use of nitrogenous aluminium organyl complexes of general formula (I) as co-catalysts in heterogeneous polymerisation reactions of propene. In said formula: R, R′, R...
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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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7329626 |
Ziegler-Natta catalyst, preparation, and use for the polymerization of alkenes
A method for making a solid catalytic component for a Ziegler-Natta catalyst includes contacting a particulate porous support with a solution of a hydrocarbon soluble organomagnesium precursor...
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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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7271119 |
Process for preparing an olefin polymerization catalyst component
Process for preparing an olefin polymerisation catalyst component in the form of particles having a predetermined size range, said process comprising the steps of a) preparing a solution of a...
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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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7256150 |
Preparation of olefin polymerization catalyst component
A process for producing a Gp 2/transition metal olefin polymerisation catalyst component, in which a Gp 2 complex is reacted with a transition metal compound so as to produce an oil-in-oil...
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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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7211538 |
Catalytic systems for the polimerization and copolimerization of alpha-olefins
Catalyst component for the polymerization of alpha-olefins in solution, in suspension, in gas phase at low and high pressure and temperature or in mass at high pressures and high or low...
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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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7193022 |
Method of polymerization and copolymerization of ethylene
Disclosed is a method of polymerization and copolymerization of ethylene, which is carried out in the presence of (a) a solid titanium complex catalyst prepared by the steps of (i) preparing a...
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7153803 |
High activity and good hydrogen response Ziegler-Natta polyethylene catalyst
Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of polyethylene containing a solid titanium catalyst component containing a titanium...
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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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7135531 |
Spherical catalyst for olefin polymerization
Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component having a substantially...
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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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7112642 |
Highly stereoregular polypropylene with improved properties
Propylene polymers having a content of isotactic pentads (mmmm) higher than 97%, molecular weight distribution, expressed by the formula (a) ratio, equal to or higher than 6 and a value of formula...
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7109142 |
Solid catalyst component and catalyst for olefin polymerization, and process for producing olefin polymer
This invention concerns a solid catalyst component for olefin polymerization and the process for obtaining the catalyst component having titanium, halogen, magnesium, an organic acid ester and a...
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7060764 |
Method for polymerization and copolymerization of ethylene
A method for polymerization and copolymerization of ethylene is disclosed. The polymerization is carried out in the presence of a preactivated titanium solid complex catalyst supported on a carrier...
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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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7030051 |
Dirhodium catalyst compositions and methods for using same
Disclosed is method for increasing the efficiency of a dirhodium catalyst. The method includes providing a dirhodium catalyst, providing an organic ester, and contacting the dirhodium catalyst and...
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7026265 |
Catalyst component comprising magnesium, titanium, a halogen and an electron donor, its preparation and use
Process for the preparation of a particular olefin polymerisation catalyst component including magnesium dihalide, titanium tetrahalide and a carboxylic acid ester, in which the precursors of its...
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7019097 |
Process for the (co)polymerization of ethylene
A process for the (co)polymerization ethylene, optionally in mixtures with olefins CH═CHR in which R is hydrogen or a hydrocarbyl radical with 1–12 carbon atoms, carried out in the presence of...
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7015170 |
Components and catalysts 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,...
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7005487 |
Catalyst system for the polymerization of olefins
A solid catalyst component for the polymerization of olefins, comprising: an inert porous support, Mg, Ti, halogen and an electron donor selected from succinates of formula (I) wherein the radicals...
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7005399 |
Catalyst for polymerization of olefins
An olefin polymerization catalyst comprising: (A) a solid catalyst component prepared by contacting (a) a dialkoxyl magnesium, (b) a tetra-valent titanium halide, and (c) a phthalic acid diester in...
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6984600 |
Olefin polymerization catalyst
An olefin polymerization catalyst comprising: (A1) a solid catalyst component prepared by contacting (a1) a dialkoxymagnesium, (b1) a tetravalent titanium halide, (c1) an electron compound, and...
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6958378 |
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 co-polymers of ethylene in the presence of (a) a solid...
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6930069 |
Polymerization catalyst for olefins and process for polymerization of olefins
Olefin polymers with a broad molecular weight distribution can be obtained while maintaining the high stereoregularity of the polymers by polymerizing olefins using a catalyst comprising (A) a...
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6916759 |
Method for producing a catalyst for homo-or co-polymerization of ethylene
A method of making an olefin polymerization catalyst is disclosed. The method involves contacting a magnesium halide compound with an alcohol, adding a mineral oil to the product, reacting this...
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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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6878659 |
Solid catalyst component for olefin polymerization and catalyst
A solid catalyst component for olefin polymerization characterized by being formed from (a) a magnesium compound, (b) titanium tetrachloride, (c) a phthalic diester and a derivative thereof, and...
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6858685 |
Solid catalyst component for olefin polymerization, process for producing the same, process for producing catalyst for olefin polymerization, and process for producing olefin polymer
There is provided a process for producing a catalyst for olefin polymerization, which comprises the step of contacting (1) an organ aluminum compound, (2) an external electron donor compound and...
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