• Catalyst injection system for an olefin polymerization reactor

     · The Multi Component Olefin Polymerization Catalyst. The polymerization alyst employed in the present disclosure is a multicomponent olefin polymerization alyst. The alyst components which make up the multicomponent olefin polymerization alyst are not particularly limited, and a wide variety of alyst components can be used, provided that they are useful for forming an active ...

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  • Supported alyst for olefin polymerization. The role of ...

     · Eur. Polym. J. Vol. 22, No. 8, pp. 637641, 1986 :86 + Printed in Great Britain Pergamon Journals Ltd SUPPORTED CATALYST FOR OLEFIN POLYMERIZATION THE ROLE OF THE THIRD COMPONENT T. YANO, T. IYOUE, S. IKAI, Y. KAI, M. TAMURA and M. SHIMIZU Ube Industries Ltd, 8I Goiminamikaigen, Ichihara, Chiba 290, Japan (Receit'ed 23 January 1986) AbstractPolymerization .

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  • Catalysts of Olefin Polymerization

    These new alysts for olefin polymerization will come from the study of new chiral ligands and their complexes, including polynuclear versions. State of art in the field. After historic ZieglerNatta alyst discovery, a great new chapter in polyolefin production was open with the advent of group IV metallocene homogeneous single site alysts of olefin polymerization. Unfortunately, their ...

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  • (PDF) Olefin Polymers, Introduction

    and an αolefin in a polymerization reaction. Density of LDPE resins produced in freeradical processes . is usually controlled by temperature. 2. Molecular weight of a PE resin is controlled by ...

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  • OneComponent Group 4 Homogeneous ZieglerNatta Olefin ...

     · OneComponent Group 4 Homogeneous ZieglerNatta Olefin Polymerization Catalysts: Hydroboration of Zirconium Bisalkyls with Pendant 2Propenyl Groups Using [(C6F5)2BH]2. Rupert E. v. H. Spence; and ; Warren E. Piers; Cite this: Organometallics 1995, 14, 10, 4617–4624. Publiion Date (Print): October 1, 1995. Publiion History. Published online 1 May 2002; Published in issue 1 .

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  • Designing alysts for olefin polymerization and ...

     · More than 50 years have passed since Ziegler and Natta shared the Nobel Prize in Chemistry for their discovery of olefin polymerization alysts. The field of metalalysed polymerization has ...

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  • Metallocene Catalysts for Olefin Polymerization

    The impact of "metallocene alysts" extends beyond simple olefin polymerization. It has opened the doors to new classes of polyolefins inaccessible by classical ZieglerNatta polymerization. It has advanced the development of chiral metallocenes. It is promoting the interest to explore further possible appliions of metallocenes in general and it is encouraging the search for other single ...

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  • Recent developments in redoxactive olefin polymerization ...

     · Olefin polymerization alysis is an evergrowing and everevolving field that is of strategic importance as scientists continually search for new methods to produce advanced polymeric materials. Polymerization alysts are routinely used to regulate the incorporation of one or more monomers into a polymer chain, which can inturn dictate the mechanical properties of the resultant .

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  • OneComponent Catalysts for Polymerization of Olefins ...

     · Onecomponent alysts, being simpler in composition, may be a convenient object for the study of the detailed mechanism of alytic polymerization. This chapter shows recent results of the study of onecomponent alysts of olefin polymerization. The study of alytic polymerization of olefins performed up to the present time is certain to ...

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  • CAA1

    The present invention provides alyst component for CH2 = CHR olefin polymerization and alyst thereof wherein R is hydrogen or C1~C12 alkyl or aryl, said alyst component contains magnesium, titanium, halogen and electron donor compounds (a), said electron donor compounds (a) are selected from at least one diester compounds of following formula (I), said alyst component also ...

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  • (PDF) Homogeneous Chromium Catalysts for Olefin Polymerization

    Abstract. Chromiumbased heterogeneous alysts are used extensively for the polymerization of olefins. There are few homogeneous model systems that allow investigation of the reaction mechanisms ...

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  • Use of Synthetic and Natural Zeolites for Fabriing ...

     · The components used to prepare the alysts were as follows: VOCl 3, which was preliminarily distilled under ... One of the important problems of the olefin polymerization alysis is the immobilization of MAOactivated homogeneous metallocene alysts for their use in existing technological processes for the synthesis of polyolefins [18–22]. In the early 1980s, we developed a .

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  • Prepolymerized alyst components for the polymerization ...

     · Components of alysts for the polymerization of olefins are obtained by contacting a Ti compound of formula Ti(OR)n−yXy, where n is the valence of titanium and y is a number between 1 and n, with a prepolymer having a porosity higher than cc/g and containing from to 100 g of polymer per g of solid alyst component, the prepolymer being obtained by (co)polymerizing an olefin or ...

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  • Olefin polymerization alyst component

    Olefin polymerization alyst components having improved activity and morphological properties are disclosed and claimed. In particular, the components are prepared by reacting a magnesium compound of the formula [Mg 4 (OR) 6 (R'OH) 10]X where "X" is a counter ion having a total charge of 2 and R and R', which may be the same or different, are selected from alkyl groups of 1 to 4 carbon ...

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  • AMINOSILANE COMPOUNDS, CATALYST COMPONENTS AND .

     · A alyst for olefin polymerization which is composed of (A) a solid alyst component containing magnesium, titanium, halogen, and an electrondonating compound, (B) an organoaluminum compound represented by the general formula: R6pAlQ3p and (C) an aminosilane compound represented by the general formula: R3 nSi(NR4R5)4n and a process for the production of olefin polymers by conducting ...

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  • Olefin polymerization alyst compositions and ...

    Patent: Olefin polymerization alyst compositions and polymerization process Title: Olefin polymerization alyst compositions and polymerization process Full Record

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  • Catalyst components and alysts for the polymerization ...

    Catalyst components for the polymerization of olefins, which comprise the reaction product of a Ti compound selected from the group consisting of Ti tetrahalides, Ti haloalcoholates and Ti halophenolates with a Mg halide, said alyst components being in the form of spherical particles having an average diameter comprised within the range of from 1 to 100 micron, a surface area comprised ...

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  • Olefin Metathesis and Metathesis Polymerization ...

    Olefin Metathesis and Metathesis Polymerization provides a broad, uptodate account of the subject from its beginnings in 1957 to the latest appliions in organic synthesis. The book follows the same format as the original, making it useful toteachers and to researchers, and will be of particular interest to those working in the fields of organic chemistry, polymer chemistry, organometallic ...

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  • Catalyst components for olefin polymerization

    JPB2 chemical patent summary.

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  • Use of Synthetic and Natural Zeolites for Fabriing ...

     · The components used to prepare the alysts were as follows: VOCl 3, which was preliminarily distilled under ... One of the important problems of the olefin polymerization alysis is the immobilization of MAOactivated homogeneous metallocene alysts for their use in existing technological processes for the synthesis of polyolefins [18–22]. In the early 1980s, we developed a method for ...

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  • New alysts for the polymerization of cyclic olefins ...

    A. F. Noels, A. Demonceau, Olefin Cyclopropanation or Olefin Metathesis with Late Transition Metal Complexes?, Metathesis Polymerization of Olefins and Polymerization of Alkynes, /, (139156), (1998).

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  • Olefin polymerization alyst component, olefin ...

     · An olefin polymerization alyst component represented by the general formula (1); lt;CHEMgt; (wherein M is the transitionmetai element of the 4th Group or the Lanthanide Series in the Periodic Table and 0 is an oxygen atom. Each of A and A' is a hydrocarbon or halogenated hydrocarbon having 1 to 50 carbon atoms, or a hydrocarbon or halogenated hydrocarbon group having 1 to 50 carbon atoms ...

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