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System for continuous production of conjugated diene-based polymer

A conjugated diene, preparation system technology, applied in the direction of rolling resistance optimization, etc., to achieve the effect of improving polymerization conversion rate, high productivity, and excellent rolling resistance performance

Active Publication Date: 2021-12-10
LG CHEM LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The present invention is designed to solve the above-mentioned problems of the conventional technology, and aims to provide a continuous production system of a conjugated diene-based polymer having excellent rolling resistance properties, by continuously producing the conjugated diene-based polymer The system can control the polymerization conversion rate in the initial stage of polymerization according to the purpose, and the clogging phenomenon of the reactor is less, and it can be operated for a long time, and the productivity is excellent

Method used

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  • System for continuous production of conjugated diene-based polymer
  • System for continuous production of conjugated diene-based polymer
  • System for continuous production of conjugated diene-based polymer

Examples

Experimental program
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example 1

[0086] Such as figure 1 As shown, the polymer is produced continuously using a continuous production system (100) comprising one upflow reactor and one downflow reactor.

[0087] Specifically, a continuous polymerization reactor comprising an upflow reactor and a downflow reactor comprising a raw material supply line (10) at the bottom and a first polymer product discharge line (20) at the top was prepared. ) of an upflow reaction chamber (BUR) comprising a downflow reaction chamber with a first polymer product supply line (30) at the top and a second polymer product discharge line (40) at the bottom (TDR).

[0088] As a raw material, 4.7kg (1,3-butadiene content of 500g) of 1,3-butadiene / hexane mixed solution was injected into the upflow reaction chamber (BUR ), and the catalyst composition was injected into the upflow reaction chamber (BUR) at 200 g / hr through the feedstock supply line (10). In this case, diisobutylaluminum hydride (DIBAH) and diethylaluminum chloride (DE...

example 2

[0090] A 1,3-butadiene polymer was prepared in the same manner as in Example 1, except that, in Example 1, the polymerization reaction was performed until the polymerization conversion in the upflow reaction chamber reached 70%.

example 3

[0092] A 1,3-butadiene polymer was prepared in the same manner as in Example 1, except that, in Example 1, the polymerization reaction was performed until the polymerization conversion in the upflow reaction chamber reached 40%.

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Abstract

The present invention relates to a system for continuous production of a conjugated diene-based polymer, which facilitates the adjustment of a polymerization conversion rate in the initial stage of polymerization and has superior productivity.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims priority based on Korean Patent Application No. 10-2020-0012159 filed on January 31, 2020, the entire contents of which are incorporated herein by reference. [technical field] [0003] The present invention relates to a continuous production system of a conjugated diene-based polymer with improved rolling resistance. Through the continuous production system of a conjugated diene-based polymer, the polymerization conversion rate in the initial stage of polymerization can be easily controlled and can be used for a long time. It operates and is excellent in productivity. Background technique [0004] According to the recent demand for automobiles with low fuel consumption, conjugated diene-based polymers having modulation stability typified by wet skid resistance and low rolling resistance and excellent wear resistance and tensile properties are required as applications. Rubber ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F136/06C08F2/01C08L9/00C08L91/00C08K3/04
CPCC08F136/06C08F2/01C08L9/00C08L91/00C08K3/04Y02T10/86C08F36/04C08F2/001C08F4/545
Inventor 李泰喆金水火金鲁马高准锡
Owner LG CHEM LTD
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