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Ethylene/1-hexene copolymer having excellent processability and mechanical properties

一种己烯共聚物、乙烯的技术，应用在乙烯/1-己烯共聚物领域，能够解决物理性质不稳定、外观粗糙等问题

Inactive Publication Date: 2018-11-23
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the polyethylene produced in this way has improved processability, but is disadvantageous in that the appearance is rough due to the non-uniform distribution state of the molecular weight in the unit particle, and the physical properties are poor even under relatively good processing conditions. Stablize

Method used

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  • Ethylene/1-hexene copolymer having excellent processability and mechanical properties
  • Ethylene/1-hexene copolymer having excellent processability and mechanical properties
  • Ethylene/1-hexene copolymer having excellent processability and mechanical properties

Examples

Experimental program
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Effect test

preparation Embodiment 1

[0115] Preparation Example 1: Preparation of Precursor A

[0116]

[0117] Tert-butyl-O-(CH 2 ) 6 -Cl, and react it with NaCp to obtain tert-butyl-O-(CH 2 ) 6 -C 5 h 5 (60% yield, boiling point (b.p.) 80°C / 0.1 mmHg). In addition, tert-butyl-O-(CH 2 ) 6 -C 5 h 5 It was dissolved in THF, n-butyllithium (n-BuLi) was slowly added thereto, the temperature was raised to room temperature, and then allowed to react for 8 hours. Slowly add the previously synthesized lithium salt solution to ZrCl again at -78 °C 4 (THF) 2 (1.70g, 4.50mmol) / THF (30mL) suspension, and further reacted at room temperature for 6 hours. All volatile materials were dried under vacuum, hexane solvent was added to the obtained oily liquid material and filtered. The filtered solution was dried under vacuum, and then hexane was added thereto at low temperature (-20°C) to induce precipitation. The obtained precipitate was filtered at low temperature to obtain the compound [tBu-O-(CH 2 ) 6 -C 5 h...

preparation Embodiment 2

[0120] Preparation Example 2: Preparation of Precursor B

[0121]

[0122] All materials are commercially available from Sigma-Aldrich (Cas number: 100080-82-8).

preparation Embodiment 3

[0123] Preparation Example 3: Preparation of Precursor C

[0124]

[0125]1.622 g (10 mmol) of fluorine were added to a dry 250 mL Schlenk flask, and 200 mL of THF were introduced thereto under argon. The THF solution was cooled to 0° C., and then 4.8 mL (12 mmol) of 2.5 M n-BuLi hexane solution was slowly added dropwise. The reaction mixture was slowly warmed to room temperature and stirred until the next day. Add 1.2mL (10mmol, Fw 129.06, d 107g / mL) of dichlorodimethylsiloxane and 30mL hexane to another 250mL Schlenk bottle, cool the Schlenk bottle to -78°C, and then The lithiated solution was added dropwise thereto. After the addition was complete, the mixture was slowly warmed to room temperature and stirred for one day. Meanwhile, 10 mmol of tetramethylcyclopentadiene was cooled to 0° C. under THF solvent, and then 4.8 mL (12 mmol) of 2.5 M n-BuLi hexane solution was slowly added dropwise and lithiation reaction was performed for one day. The next day, the chloro(9...

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Abstract

The ethylene / 1-hexene copolymer according to the present invention has excellent processability and mechanical properties, and thus can be applied to various fields such as food containers.

Description

[0001] Cross References to Related Applications [0002] This application claims priority and benefit from Korean Patent Application No. 10-2016-0167789 filed on December 9, 2016, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates to an ethylene / 1-hexene copolymer having excellent processability and mechanical properties. Background technique [0004] In the case of resins used for food containers and the like, excellent processability and mechanical properties are required. Accordingly, there is a continuing need for a technique involving the preparation of polyolefins that satisfy large molecular weight, broader molecular weight distribution, desired comonomer distribution, etc., and thus can be preferably used for containers, bottle caps, etc. all the time. [0005] On the other hand, since metallocene catalysts containing Group 4 transition metals are used to easily control the molecular w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F210/02C08F4/6592C08L23/08
CPCC08F4/65912C08F4/65916C08F4/65925C08F4/65927C08L23/08C08F2420/06C08F210/16C08F2420/10C08F2420/07C08F210/14C08F2500/02C08F2500/04C08F2500/07C08F2500/12C08F4/65904C08F210/02C08F4/65922C08L23/0807C08F2500/17C08F4/6592C08F2500/08
Inventor 李承珉崔二永洪福基宣淳浩金善美朴珍映李琪树
Owner LG CHEM LTD
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