TW354791B - Procatalyst for ethylene polymer production, method for its preparation and use - Google Patents

Procatalyst for ethylene polymer production, method for its preparation and use

Info

Publication number
TW354791B
TW354791B TW084106331A TW84106331A TW354791B TW 354791 B TW354791 B TW 354791B TW 084106331 A TW084106331 A TW 084106331A TW 84106331 A TW84106331 A TW 84106331A TW 354791 B TW354791 B TW 354791B
Authority
TW
Taiwan
Prior art keywords
procatalyst
compound
mfr2
contacting
polymer
Prior art date
Application number
TW084106331A
Other languages
Chinese (zh)
Inventor
Thomas Garoff
Solveig Johansson
Ulf Palmqvist
Daniel Lindgren
Marita Stuela
Waldvogel Paivi
Kostiainen Arja
Original Assignee
Borealis Polymers Oy
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
Priority claimed from FI942949A external-priority patent/FI942949A0/en
Application filed by Borealis Polymers Oy filed Critical Borealis Polymers Oy
Application granted granted Critical
Publication of TW354791B publication Critical patent/TW354791B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • 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
    • C08F4/65—Pretreating the metal or compound covered by group C08F4/64 before the final contacting with the metal or compound covered by group C08F4/44
    • C08F4/652—Pretreating with metals or metal-containing compounds
    • C08F4/655—Pretreating with metals or metal-containing compounds with aluminium or compounds thereof
    • C08F4/6555—Pretreating with metals or metal-containing compounds with aluminium or compounds thereof and magnesium or compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F110/00—Homopolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C08F110/02—Ethene

Abstract

A high activity procatalyst for the production of ethylene polymers, which procatalyst comprises an inorganic support, a chlorine compound carried on the support, a magnesium compound carried on the support, and a titanium compound carried on the support, in which the chlorine compound is the same or different from the magnesium compound and/or the titanium compound, and in which the procatalyst has an activity balance AB, which is greater than 3.2, in which AB={(A+A^):2.multidot.log (MFR2^:MFR2):(A-A^)}, A represents the polymerization activity expressed as kg PE/g cat.multidot.h for a polymer of a first molecular weight, A^ represents the polymerization activity for a polymer of a second molecular weight, MFR2 means the melt flow rate for the polymer of a first molecular weight. MFR2 ^ means the melt flow rate for the polymer of a second molecular weight, expressed in g/min units at a load of 2.16 kg, according to the standard ISO 1133, the absence of the upper index^ means low melt flow rate polymerization and the presence of the upper index^ means high melt flow polymerization. In which the procatalyst is prepared by a process which comprises: (a) contacting the inorganic support with an alkyl metal chloride which is soluble in non-polar hydrocarbon solvents and has the formula (1), (Rn MeCl3-n)m, in which R is a C1 -C20 alkyl group, Me is a metal group III (13) of the Periodic Table, n=1 or 2 and m=1 or 2, to give a first reaction product, (b) contacting the first reaction product with a compound or mixture containing hydrocarbyl, hydrocarbyl oxide and magnesium, obtained by contacting a dialkyl magnesium and an alcohol at a molar ratio of between 1:1.78 to 1:1.99 to give a second reaction product, (c) contacting the second reaction product with a titanium compound which contains chlorine, having the formula (2) Clx Ti (ORIV)4-x, in which RIV is a C2 -C20 hydrocarbyl group and x is 3 or 4, to give the procatalyst.
TW084106331A 1994-06-20 1995-06-20 Procatalyst for ethylene polymer production, method for its preparation and use TW354791B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI942949A FI942949A0 (en) 1994-06-20 1994-06-20 Prokatalysator Foer production av etenpolymerer och foerfarande Foer framstaellning daerav

Publications (1)

Publication Number Publication Date
TW354791B true TW354791B (en) 1999-03-21

Family

ID=47221674

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084106331A TW354791B (en) 1994-06-20 1995-06-20 Procatalyst for ethylene polymer production, method for its preparation and use

Country Status (3)

Country Link
KR (1) KR100376948B1 (en)
MY (1) MY114884A (en)
TW (1) TW354791B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5047468A (en) * 1988-11-16 1991-09-10 Union Carbide Chemicals And Plastics Technology Corporation Process for the in situ blending of polymers

Also Published As

Publication number Publication date
KR100376948B1 (en) 2003-07-22
KR970703995A (en) 1997-08-09
MY114884A (en) 2003-02-28

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Legal Events

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MM4A Annulment or lapse of patent due to non-payment of fees