US6924343B2 - Olefin polymerization catalyst …

A process for polymerizing olefins using a high activity catalyst. The catalyst utilize in the present process has a good balance in activity and can be used to carry out ethylene polymerization at high and low melt flow rates to produce low gel or gel free product.

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US4771024A - Olefin polymerization catalyst …

Olefin polymerization catalyst components having improved activity and morphological properties are disclosed and claimed. In particular, the components are prepared by reacting a carbonized magnesium alkoxide or aryloxide component with a halogenated tetravalent titanium component, a halohydrocarbon component and an electron donor.

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Alkene - Wikipedia

In organic chemistry, an alkene is an unsaturated hydrocarbon that contains at least one carbon–carbon double bond. The words alkene and olefin are often used interchangeably (see nomenclature section below).

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Polyolefin - Wikipedia

A polyolefin is any of a class of polymers produced from a simple olefin (also called an alkene with the general formula C n H 2n) as a monomer. For example, polyethylene is the polyolefin produced by polymerizing the olefin ethylene .

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BRIDGED METALLOCENE COMPOUND, OLEFIN POLYMERIZATION ...

Apr 24, 2014· Metallocene compounds of the invention are useful as olefin polymerization catalysts or catalyst components. Olefin polymerization processes of the invention involve an olefin polymerization catalyst ... BRIDGED METALLOCENE COMPOUND, OLEFIN POLYMERIZATION CATALYST CONTAINING THE SAME, …

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Catalyst component for olefin polymerization. - TOA …

Apr 19, 1989· CATALYST COMPONENT FOR OLEFIN POLYMERIZATION. The present invention relates to a catalyst component for olefin polymerization. Some catalyst components for olefin polymerization using, as a raw material, a metal oxide such as silica, which are capable of producing polyolefins (e.g., polypropylene) having high …

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Olefin | chemical compound | Britannica

Olefin, also called alkene ... were produced through polymerization (specifically, oligomerization) and olefin metathesis, which together formed the basis of the Shell higher olefin process ... for refinery processing in the 1920s were focused primarily on increasing the quantity and quality of gasoline components. As a by-product of this ...

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Polymers | Special Issue : Olefin Polymerization and ...

Special Issue "Olefin Polymerization and Polyolefin" ... The development of new olefin polymerization catalysts has been a major driving force in this field. Despite decades of research, there are still a lot of unsolved issues. ... (This article belongs to the Special Issue Olefin Polymerization and Polyolefin)

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Solid component of catalyst for the (co)polymerization …

Novel catalyst components for polymerizing alpha-olefin or mixture of alpha-olefin and ethylene Catalyst for 1-olefin polymerization and polymerization therefor Catalyst for olefin polymerization and catalyst component

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Addition Polymerization - an overview | ScienceDirect …

28.4 Polymerization Methods. ... and dry offset letterpress or screen printing for three-dimensional components. General purpose styrene (GPS), sometimes known as crystal styrene is very brittle and most polystyrene used in packaging is the high impact variant (HIPS) which is a styrene-butadiene copolymer. ... Olefin polymerization. Here we ...

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Chapter 2 Deactivation of Ni-Based Olefin …

Deactivation of Ni-Based Olefin Polymerization Catalysts in the Presence of Vinyl-Functionalized Olefins . 22 2.1 Abstract Neutral Ni salicylaldimine (Ni ... The major components were methyl trans-cinnamate (2.1) and methyl 3-phenylpropionate (2.2) in a ratio of close to 1:1. 24

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Highly Electrophilic Olefin Polymerization Catalysts ...

Highly Electrophilic Olefin Polymerization Catalysts. Quantitative Reaction Coordinates for Fluoroarylborane/Alumoxane Methide Abstraction and Ion-Pair Reorganization in Group 4 Metallocene and “Constrained Geometry” Catalysts ... Chapter 4 Synthesis, Chemical Composition, and Structure of Transition Metal Components and Cocatalysts in ...

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Patent WO1997014727A1 - Homogeneous metallocene-based ...

An olefin homogeneous polymerization catalyst demonstrating increased activity is formed from a cyclopentadienyl metallocene component, a salt of a compatible cation and a non-coordinating anion ...

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MgCI2-Supported Ziegler-Natta Catalysts for Olefin ...

Journal of Macromolecular Science, Part C ... Altmetric Original Articles MgCI 2-Supported Ziegler-Natta Catalysts for Olefin Polymerization: Basic Structure, Mechanism, and Kinetic Behavior. ... The first part of the review will examine the make-up of a supported catalyst by breaking it down and analyzing its components. From this …

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Metallocene catalysts for olefin polymerization: Annual ...

One of the keys to the successful utilization of metallocenes in olefin polymerization is the ability to manipulate activity, molecular weight, comonomer incorporation, and stereopecificity by choice of cyclopentadienyl ring substituents. ... Catalysts affording polymers with narrow MWD's are formed from assembling metallocene components …

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Effect of Cyclopentadienyl and Amide Fragment in Olefin ...

Effect of Cyclopentadienyl and Amide Fragment in Olefin Polymerization by Nonbridged (Amide)(cyclopentadienyl)titanium ... Chapter 4 Synthesis, Chemical Composition, and Structure of Transition Metal Components and Cocatalysts in Catalyst Systems for Alkene Polymerization. Yury Kissin. 2007,207-290. Olefin Polymerizations with …

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THEORETICAL INVESTIGATION OF THE …

theoretical investigation of the structure and function of mao in activation of metallocene olefin polymerization muhammad sajid iqbal master’s thesis

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A Combined Density Functional and Molecular …

A Combined Density Functional and Molecular Mechanics Study on Olefin Polymerization by Metallocene Catalysts T. K. Woo 1,2 , L. Fan I , T. Ziegler'l I Novacor Research & Technology Corporation, Calgary, Alberta, Canada T2C 7K4 2 Department of Chemistry, University of Calgary, Calgary, Alberta, Canada T2N IN4

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Cyclic Olefin Copolymers - Nexant

Other properties of cyclic olefin copolymers are a combination of those of polyolefins and amorphous polymers. For example, physical properties such as chemical ... the polymer chain of these resins forms from an olefin polymerization reaction, similar to conventional polyolefins, with no ring opening, in the ... automotive lamp components …

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Surface science of single-site heterogeneous olefin ...

Surface science of single-site heterogeneous olefin polymerization catalysts ... heterogeneous olefin polymerization. In the polymerization of small olefins such as ethylene and propylene, both heterogeneous and homogeneous catalytic sys- ... tains a mixture of atactic and isotactic components. The stereo-

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Selective Polymerization from Olefin Mixtures

polymerization should have the additional advantage, compared with the other reactions mentioned above, that it is easy to separate the polymer products from the unreac ting components.

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AMINOSILANE COMPOUNDS, CATALYST COMPONENTS AND …

A catalyst for olefin polymerization which is composed of (A) a solid catalyst component containing magnesium, titanium, halogen, and an electron-donating compound, (B) an organo-aluminum compound represented by the general formula: R6pAlQ3-p and (C) an aminosilane compound represented by the ...

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Decreasing VOC Emissions at the Source With New …

Decreasing VOC Emissions at the Source With New Additive Technologies for Olefin Composites - Free download as PDF File (.pdf), Text File (.txt) or read online for free. ... molding: residue leftover from the polymerization process and components of the additives package used to enhance the performance of the base resin. Both categories …

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olefin polymerization components - eurocities2014.eu

In the coordinative polymerization of α-olefin by a slurry process, .As a result of solvent movement and its friction between system components,. More Catalyst Component For Olefin Polymerization, Page 1

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olefin polymerization components - eurocities2014.eu

In the coordinative polymerization of α-olefin by a slurry process, .As a result of solvent movement and its friction between system components,. More Catalyst Component For Olefin Polymerization, Page 1

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Evaluation of the Effect of Reaction and Mass …

Polymerization processes are among the most complex processes in the chemical industry. They are ... multilevel model or its components for solving indi vidual problems. ... Abstract—The process of the growth of polymer particles in olefin polymerization is studied. The regions of

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Mechanism of Isospecific Olefin Polymerization

374 V: Mechanism of Isospecific Olefin Polymerization Ziegler-Natta catalysts. The best studied of these catalysts is the combination of (CsHsh TiCl2 with AlR2Cl (R = Me, Et, etc.).Activity of this system in ethylene

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Spherical carriers for olefin polymerization catalyst ...

Spherical carriers for an olefin polymerization catalyst, catalyst components, catalysts, and preparation methods therefor are disclosed. The method for preparing the spherical carriers comprises the following steps: (1) reacting, in the presence of at least one polymeric dispersion stabilizer, a magnesium halide with an organic compound …

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Olefin Polymer | Article about Olefin Polymer by The …

High-quality polymer systems, such as the Daikyo Crystal Zenith cyclic olefin polymer, when combined with high-quality coated elastomer components, add value to biosimilars through enhanced cleanliness and decreased interaction with the drug product.

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Cyclic Olefin Copolymer (COC) - TOPAS

Cyclic Olefin Copolymer (COC) 4 Effective January 1, 2006, the global COC business ... ied over a wide range during polymerization. These new materials exhibit a unique combination ... basis for calculation when designing components subjected to prolonged stress. The behaviour of plas-

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US6706891B2 - Process for the preparation of ligands …

Olefin polymerization catalysts containing group 8-10 transition metals, bidentate ligands, processes employing such catalysts and polymers obtained therefrom ... Catalyst components for ...

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Catalysts for olefin polymerization - patentcut

These methods also comprise contacting the transition metal compound catalyst, the organoaluminum cocatalyst, and the chemically-treated solid oxide, and optionally pretreating some or all of these components with an olefin compound, prior to initiating a polymerization reaction.

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Polymerization | chemical reaction | Britannica

The light gaseous hydrocarbons produced by catalytic cracking are highly unsaturated and are usually converted into high-octane gasoline components in polymerization or alkylation processes. In polymerization , the light olefins propylene and butylene are …

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BRIDGED METALLOCENE COMPLEX FOR OLEFIN POLYMERIZATION …

Justia Patents US Patent Application for BRIDGED METALLOCENE COMPLEX FOR OLEFIN POLYMERIZATION Patent Application (Application #20160208025) BRIDGED METALLOCENE COMPLEX FOR OLEFIN POLYMERIZATION . ... it is also to be understood that a description on a product comprising certain components also discloses a product consisting of these components ...

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Olefin polymerization of copolymerization catalyst components

This patent describes a supported titanium-containing olefin polymerization catalyst. It comprises, as a cocatalyst component, a composition formed by reacting a trialkylaluminum of a ...

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Kinetics of Olefin Polymerization with Heterogeneous ...

Request PDF on ResearchGate | Kinetics of Olefin Polymerization with Heterogeneous Ziegler-Natta Catalysts | The kinetics of the ethylene/1-hexene copolymerization reaction with a Ti-based Ziegler ...

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Spherical Carriers For Olefin Polymerization Catalyst ...

Spherical carriers for an olefin polymerization catalyst, catalyst components, catalysts, and preparation methods therefor are disclosed. The method for preparing the spherical carriers comprises the following steps: (1) reacting, in the presence of at least one polymeric dispersion stabilizer, a magnesium halide with an organic compound …

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Multinuclear group 4 catalysis: Olefin polymerization ...

ConspectusPolyolefins are produced today catalytically on a vast scale, and the manufactured polymers find use in everything from artificial limbs and food/medical packaging to automotive and electrical components and lubricants.

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