发明名称 |
Process for polymer hydrogenation using lithium hydride prepared from reactor equipped with high-speed injection nozzle |
摘要 |
The present invention relates to a process for polymer hydrogenation that includes: polymerizing or copolymerizing at least one conjugated diene in a hydrocarbon solvent using an organic alkali metal polymerization initiator to generate a living polymer; adding a terminating agent selected from amines, esters, ketones, or halogen compounds to deactivate the active terminal of the living polymer; and selectively hydrogenating the conjugated diene polymer using at least one organotitanium compound and a lithium hydride, which is prepared from a reactor equipped with a high-speed injection nozzle and thereby precisely controlled in regard to particle diameter. The lithium hydride as used in this process is a highly active lithium hydride having a precisely controlled particle diameter as prepared from a reactor equipped with a high-speed injection nozzle to acquire stable hydrogenation reaction rate and hydrogenation reproducibility, and particularly allow the quantitative control of the lithium hydride/titanium mole ratio in the hydrogenation of the conjugated diene polymer having different molecular weights, thereby maintaining a high hydrogenation activity.
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申请公布号 |
US6864326(B2) |
申请公布日期 |
2005.03.08 |
申请号 |
US20030653664 |
申请日期 |
2003.09.02 |
申请人 |
KOREA KUMHO PETROCHEMICAL CO., LTD. |
发明人 |
KO YOUNG-HOON;KIM HOO-CHAE;KIM JAE-YUN;HWANG JIN-MAN |
分类号 |
B01J31/12;C01B6/04;C08C19/02;C08F8/04;(IPC1-7):C08C19/02 |
主分类号 |
B01J31/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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