NOVEL TETRAARYLBORATE COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND alpha-OLEFIN BY USING SAME

A technology of tetraaryl borate and aryl borate, which is applied in the field of tetraaryl borate compounds, can solve problems such as uneven composition distribution, failure, and operation interruption, and achieve reduced consumption, high yield, and promotion of The effect of the operation

Pending Publication Date: 2021-11-19
SABIC NEXLENE CO PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although the Ziegler-Natta catalyst system has high activity in ethylene polymerization, its disadvantage is that the polymers usually produced have a broad molecular weight distribution due to heterogeneous catalyst active sites, and in particular, ethylene-α Olefin Copolymers Have Inhomogeneous Composition Distribution
In the case of employing a catalyst system provided in a solid state, it may lead to a failure in a supply device such as a pump used in a large-scale production process, which may interrupt a stable operation

Method used

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  • NOVEL TETRAARYLBORATE COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND alpha-OLEFIN BY USING SAME
  • NOVEL TETRAARYLBORATE COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND alpha-OLEFIN BY USING SAME
  • NOVEL TETRAARYLBORATE COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PREPARING ETHYLENE HOMOPOLYMERS OR COPOLYMERS OF ETHYLENE AND alpha-OLEFIN BY USING SAME

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0186] Preferred organic solvents can be used in the preparation method of the present invention may be an aliphatic hydrocarbon-based solvent, (C3-C20) hydrocarbon, and the specific example thereof may be selected from one or both or more of the following Mixed Solvent: Based on linear aliphatic hydrocarbon solvent, such as butane, isobutane, pentane, hexane, heptane, octane, isooctane, decane, decane and dodecane; and cyclic Solvents of aliphatic hydrocarbons such as cyclopentane, methylcyclopentane, cyclohexane, and methylcyclohexane.

[0187] The organic solvents that can be used in the preparation method can be an aromatic hydrocarbon-based solvent.

[0188] Specifically, when the ethylene homopolymer is prepared, ethylene is used as a monomer, wherein the suitable ethylene pressure may be 1ATM to 1000 calm, more preferably 6 atm to 150 atm. Further, the polymerization temperature of 25 ° C to 220 ° C, preferably from 70 ° C to 220 ° C, and more preferably from 100 ° C to 220...

preparation example 1

[0205] (Preparation Example 1) Preparation of complex 1

[0206] Preparation of Compound 1-A

[0207]

[0208] (Preparation Example 1) Preparation of complex 1

[0209] Preparation of Compound 1-B

[0210]

[0211] The compound 1-A (6.00 g, 31.4 mmol) was added to a 250 mL round bottom flask under a nitrogen atmosphere, and 150 ml of anhydrous tetrahydrofuran (THF) was added thereto, and the mixture was stirred. N-tert-butyl-1-chloro-1-methyl-1-phenylsilane (7.16 g, 31.4 mmol) was added by dissolving in tetrahydrofuran (THF) (50 mL), and then the mixture was stirred at room temperature 12 Hour. The solvent was removed in vacuo and dissolved by adding n-hexane (150 mL), and then the solid was removed with a filter filled with dried celite. The solvent was removed to obtain a compound 1-b (10.8 g, yield of 91.0%, and the ratio of diastereomer) was obtained.

[0212] 1 H-NMR (500MHz, C 6 Di 6 PPM): Δ0.156 (D, 3H), 0.703-0.830 (M, 1H), 0.976 (D, 9H), 1.501-1.528 (m, 4H), 3.089-3...

Embodiment 1

[0218] N- octadecyl -N- alkylene octadecylphenyl tetrakis (pentafluorophenyl) borate [C 17 Hide 35 -C = N + (C 18 Hide 37 ) (C 6 Hide 5 ) B (C 6 Fly 5 ) 4 - ] Preparation of

[0219] Was added 3g (3.25mmol) trityl tetrakis (pentafluorophenyl) borate in a glove box 1L round bottom flask. Then, 300g of cyclohexane was added to the round bottom flask, and the mixture was stirred to prepare a yellow suspension at room temperature. To the suspension was added a solution of 1.95g (3.26mmol) as solid N, N- bis octadecylphenyl amine, and then stirred at room temperature for 30 minutes. Once the suspension solution became clear, which was used in subsequent copolymerization reactions without further separation.

[0220] 1 H-NMR (500MHz, CDCl 3 , Ppm): δ0.86-0.89 (m, 6H), 1.22-1.32 (m, 62H), 1.44-1.51 (m, 2H), 3.43-3.47 (m, 2H), 7.05-7.58 (m, 5H) , 7.64-7.68 (m, 1H).

[0221] Ethylene and 1-octene copolymerization by a continuous solution process

[0222] Using a continuous polymerization ...

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Abstract

The present invention relates to a novel tetraarylborate compound, a catalyst composition comprising same, and a method for preparing ethylene homopolymers or copolymers of ethylene and alpha-olefins by using same. In detail, the tetraarylborate compound has the excellent thermal stability and can be completely dissolved in an aliphatic hydrocarbon-based solvent, thereby facilitating operation of commercial processes and effectively inducing activation of a single-site catalyst. When used as a catalyst activator, the tetraarylborate compound allows high catalytic activity and can provide high molecular weight ethylene homopolymers and ethylene-based copolymers selected from copolymers of ethylene and alpha-olefin, and the like.

Description

Technical field [0001] The present invention relates to a four aryl borate compound comprising a catalyst composition thereof, and a method of preparing a ethylene homopolymer or an ethylene-α olefin copolymer using it. Background technique [0002] Conventionally, in the preparation of an ethylene homopolymer or an ethylene-α olefin copolymer, the so-called Ziegler-Nata containing a catalyst component containing a main catalyst component of a titanium or a vanadium compound and an aluminum compound of the aluminum compound. Catalyst system. However, although the Ziegler-Natta catalyst system has high activity in ethylene polymerization, it is disadvantage that the polymer typically produced has a wide molecular weight distribution due to a multiphase catalyst active site, and in particular, ethylene-α The olefin copolymer has uneven composition distribution. [0003] Recently, a metallocene catalyst system containing a metallocene compound containing a 4th trial of a four-family...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F5/02C07C211/64C08F110/02C08F210/16C08F4/6592C08F4/52C08F4/659C08F4/646C08F2/38
CPCC08F210/16C07F5/027C07F17/00C07C251/08C08F2420/02C08F2420/07Y02P20/52C08F4/6592C08F4/65908C08F210/14C08F2500/12C08F2500/08C07C211/64C08F110/02C08F4/52C08F4/65912C08F4/6465C08F2/38C07F5/02
Inventor 申东澈吴娟钰金美智
Owner SABIC NEXLENE CO PTE LTD
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