PE20200030A1 - Medios para aumentar el peso molecular y disminuir la densidad de los interpolimeros de etileno empleando formulaciones de catalizadores homogeneos - Google Patents

Medios para aumentar el peso molecular y disminuir la densidad de los interpolimeros de etileno empleando formulaciones de catalizadores homogeneos

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Publication number
PE20200030A1
PE20200030A1 PE2019002074A PE2019002074A PE20200030A1 PE 20200030 A1 PE20200030 A1 PE 20200030A1 PE 2019002074 A PE2019002074 A PE 2019002074A PE 2019002074 A PE2019002074 A PE 2019002074A PE 20200030 A1 PE20200030 A1 PE 20200030A1
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PE
Peru
Prior art keywords
reactor
ethylene interpolymer
homogeneous catalyst
density
molecular weight
Prior art date
Application number
PE2019002074A
Other languages
English (en)
Inventor
Zengrong Zhang
Niousha Kazemi
Stephen Salomons
Monika Kleczek
Mehdi Keshtkar
Brian Molloy
Qinyan Wang
Peter Zoricak
Charles Carter
Xiaochuan Wang
Christopher Dobbin
Fazle Sibtain
Kenneth Taylor
Asseldonk Lawrence Van
Hamidreza Khakdaman
Original Assignee
Nova Chem Int Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nova Chem Int Sa filed Critical Nova Chem Int Sa
Publication of PE20200030A1 publication Critical patent/PE20200030A1/es

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    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/08—Copolymers of ethene
    • C08L23/0807—Copolymers of ethene with unsaturated hydrocarbons only containing more than three carbon atoms
    • C08L23/0815—Copolymers of ethene with aliphatic 1-olefins
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    • C08F2/00—Processes of polymerisation
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    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/14—Monomers containing five or more carbon atoms
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    • C08F210/00—Copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F210/16—Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
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    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F4/00—Polymerisation catalysts
    • C08F4/42—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors
    • C08F4/44—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides
    • C08F4/60—Metals; Metal hydrides; Metallo-organic compounds; Use thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths or actinides together with refractory metals, iron group metals, platinum group metals, manganese, rhenium technetium or compounds thereof
    • C08F4/62—Refractory metals or compounds thereof
    • C08F4/64—Titanium, zirconium, hafnium or compounds thereof
    • C08F4/659—Component covered by group C08F4/64 containing a transition metal-carbon bond
    • C08F4/65904—Component covered by group C08F4/64 containing a transition metal-carbon bond in combination with another component of C08F4/64
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    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
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    • C08F2410/00—Features related to the catalyst preparation, the catalyst use or to the deactivation of the catalyst
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    • C08F2500/03—Narrow molecular weight distribution, i.e. Mw/Mn < 3
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Abstract

Un proceso continuo de polimerizacion en solucion en el que se emplean por lo menos dos formulaciones de catalizadores. Se emplea una primera formulacion de catalizador homogeneo en un primer reactor para producir un primer interpolimero de etileno y se emplea una primera formulacion de catalizador heterogeneo en un segundo reactor para producir un segundo interpolimero de etileno. Opcionalmente, en un tercer reactor se forma un tercer interpolimero de etileno. Los productos de interpolimeros de etileno que se obtienen como resultado poseen propiedades deseables en una variedad de aplicaciones de uso final, por ejemplo en aplicaciones en peliculas. Se divulga un medio para incrementar el peso molecular del primer interpolimero de etileno y/o un medio para incrementar la temperatura del primer reactor, con relacion a una tercera formulacion de catalizador homogeneo. Se divulga un medio para reducir la proporcionen peso de (a-olefina/etileno) en el primer reactor y/o reducir la densidad del primer interpolimero de etileno, con relacion a una tercera formulacion de catalizador homogeneo.
PE2019002074A 2017-04-19 2018-04-06 Medios para aumentar el peso molecular y disminuir la densidad de los interpolimeros de etileno empleando formulaciones de catalizadores homogeneos PE20200030A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US15/491,330 US10442921B2 (en) 2017-04-19 2017-04-19 Means for increasing the molecular weight and decreasing the density employing mixed homogeneous catalyst formulations
PCT/IB2018/052403 WO2018193331A1 (en) 2017-04-19 2018-04-06 Means for increasing the molecular weight and decreasing the density of ethylene interpolymers employing mixed homogeneous catalyst formulations

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PE20200030A1 true PE20200030A1 (es) 2020-01-09

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