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Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same

一种配合物、助催化剂的技术，应用在化学仪器和方法、钛有机化合物、周期表第4/14族元素的化合物等方向，达到活性不会下降、容易聚合、反应性良好的效果

Active Publication Date: 2020-08-04
SABIC NEXLENE CO PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, catalyst poisoning due to the natural occurrence of impurities in the solvent becomes a bigger problem with the concentration limit of the catalyst

Method used

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  • Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same
  • Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same
  • Metal-ligand complex, catalyst composition comprising same for ethylene-based polymerization, and method for preparing ethylene-based polymer by using same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 11

[0120] [Production Example 1] 1,3-bis(4-fluoro-2-iodophenoxy)propane (1,3-bis(4-fluoro-2-iodopheno xy) propane) (compound A) synthesis

[0121]

[0122] Synthesis of 4-Fluoro-2-iodophenol (Compound a-1)

[0123] In a round-bottomed flask, add 4-fluorophenol (4-Fluorophenol) (40mmol, 4.9g) and NaI, NaOH according to the equivalent, add MeOH (60mL) to it, utilize ice-bath (ice-bath) to adjust the temperature to 0 ℃. NaOCl (1 equiv.) was added using a Syringe pump for 1 hour. After all the NaOCl was added, it was stirred at the same temperature for 3 hours. Then, 10% sodium thiosulfate solution (30 mL) was added thereto, the pH was adjusted to 5-6 with 5% HCl solution again, and extraction was performed with diethyl ether. The extracted filtrate was separated and purified by column chromatography (eluent EA / n-Hex=1 / 30v / v) to obtain compound a-1 (5.2 g, 54%) as a light yellow solid.

[0124] 1 H NMR (CDCl 3): δ7.39(d, 1H), 7.01(m, 1H), 6.98(m, 1H), 5.10(s, 1H)

[...

Embodiment 1

[0128] [embodiment 1] the synthesis of precatalyst WCO3

[0129] Synthesis of 2-Iodo-4-octylphenol (Compound 3-1)

[0130]

[0131] In a round bottom flask, add 4-n-octylphenol (4-n-Octylphenol) (20mmol, 4.13g) and NaI (1.1eq) and NaOH (1.2eq), add MeOH (120mL) to it, use ice bath (ice-bath) Adjust the temperature to 0°C. NaOCl (1 equivalent) was slowly added thereto using a syringe pump over 1 hour, followed by further stirring at the same temperature for 3 hours. After adding 10% sodium thiosulfate solution (30 mL), adjust the pH to 5-6 with 5% HCl solution, and extract with diethyl ether. After removing the solvent from the extracted filtrate, the compound 3-1 (2.9 g, 65%) was obtained as a colorless liquid by column chromatography (eluent: EA / n-Hex = 1 / 30 v / v).

[0132] 2-(2-iodo-4-octylphenoxy)tetrahydro-2H-pyran (2-(2-iodo-4-octylphenoxy)tetrah ydro-2H-pyran) (compound 3-2) synthesis

[0133]

[0134] In a round bottom flask, add compound 3-1 and p-TsOH (...

Embodiment 2

[0153] [embodiment 2] the synthesis of precatalyst WCO4

[0154] Synthesis of 2-Iodo-4-dodecylphenol (Compound 4-1)

[0155]

[0156] In a round bottom flask, add 4-n-dodecylphenol (4-n-Dodecylphenol) (40mmol, 10.5g) and NaI (1.1eq) and NaOH (1.2eq), add MeOH (120mL) thereto, use An ice-bath was used to adjust the temperature to 0 °C. After NaOCl (1 equivalent) was slowly added thereto using a syringe pump (Syringe pump) over 1 hour, it was further stirred at the same temperature for 3 hours. Then, after adding 10% sodium thiosulfate solution (30 mL), the pH was adjusted to 5-6 with 6.5% HCl solution again, and extracted with diethyl ether. The extracted filtrate was separated and purified by column chromatography (eluent: EA / n-Hex=1 / 30v / v) to obtain compound 4-1 (8 g, 65%) in the form of a colorless liquid.

[0157] 2-(2-iodo-4-dodecylphenoxy)tetrahydro-2H-pyran (2-(2-iodo-4-dodecylphenoxy) tetrahydro-2H-pyran) (compound 4-2) synthesis

[0158]

[0159] In a r...

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Abstract

The present invention provides a metal-ligand complex, a catalyst composition comprising the same for ethylene-based polymerization, and a method for preparing an ethylene-based polymer by using same.The metal-ligand complex of the present invention in which a particular functional group is introduced at a particular location has high solubility and catalytic activity, and therefore, the catalystcomposition comprises the complex for ethylene-based polymerization can produce an ethylene-based polymer having excellent physical properties.

Description

technical field [0001] The present invention relates to a metal-ligand complex, a catalyst composition for ethylene-based polymerization containing the same, and a method for producing an ethylene-based polymer using the same. Background technique [0002] In the past, in the production of copolymers of ethylene and α-olefins or copolymers of ethylene and olefin-diene, generally, a catalyst component composed of a titanium or vanadium compound and a cocatalyst component of an alkylaluminum compound has been used. The so-called Ziegler-Natta (Ziegler-Natta) catalyst system. [0003] In U.S. Patent Nos. 3,594,330 and 3,676,415, an improved Ziegler-Natta catalyst is disclosed. Although the Ziegler-Natta catalyst system exhibits high activity for ethylene polymerization, due to the heterogeneous catalytic activity Generally, the molecular weight distribution of the resulting polymer is wide, especially for copolymers of ethylene and α-olefin, there is a disadvantage of uneven c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F7/28C07F7/00C08F4/64C08F4/642C08F4/52C08F10/02C08F210/16
CPCC07F7/00C08F210/18C08F210/16C08F4/65912C08F4/65908C08F2/06Y02P20/52C08F4/64193C08F210/14C08F2500/12C08F2500/08C08F2500/03C08F2500/27C07F7/28C08F4/642C08F4/52C08F10/02C08F4/64
Inventor 韩龙圭吴娟钰金美智张铉民
Owner SABIC NEXLENE CO PTE LTD
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