利索-全球专利检索

  1. 登录
  2. 注册
发明公开
CN103130939A 一种丙烯/1-丁烯无规共聚物的生产方法 无效 - 撤回

一种丙烯/1-丁烯无规共聚物的生产方法
摘要：
本发明公开一种丙烯/1-丁烯无规共聚物的生产方法，将丙烯与1-丁烯在液相本体聚合反应单元和气相本体聚合反应单元串联组成的聚合装置中进行共聚反应，其中，液相本体聚合反应单元由一个立式搅拌釜式反应器组成或由两个以上立式搅拌釜式反应器串联而成，气相本体聚合反应单元由一个气相本体聚合反应器组成或由两个以上气相本体聚合反应器组成，当目标共聚物中1-丁烯的重量百分比含量为5%以下时，控制丙烯、1-丁烯单体在液相本体聚合反应单元中的聚合温度不高于75℃，当目标共聚物中1-丁烯的重量百分比含量大于5%时，控制丙烯、1-丁烯单体在液相本体聚合反应单元的聚合温度不高于70℃。本发明有效利用了现有装置，且制得的丙烯/1-丁烯共聚物性能好。
摘要（英）：

The invention discloses a production method of a propylene/1-butene random copolymer. The production method comprises the following step of: carrying out copolymerization reaction on propylene and 1-butene in a polymerization plant formed through series connection of a liquid phase mass polymerization reaction unit and a gas phase mass polymerization reaction unit, wherein the liquid phase mass polymerization reaction unit is formed by one vertical stirred-tank reactor or through series connection of more than two stirred-tank reactors, the gas phase mass polymerization reaction unit is formed by one gas phase mass polymerization reactor or more than two gas phase mass polymerization reactors, when the percentage by weight of 1-butene in a target copolymer is below 5%, the polymerization temperature of the propylene and 1-butene monomers in the liquid phase mass polymerization reaction unit is controlled to be not higher than 75 DEG C, and when the percentage by weight of 1-butene in the target copolymer is above 5%, the polymerization temperature of the propylene and 1-butene monomers in the liquid phase mass polymerization reaction unit is controlled to be not higher than 70 DEG C. According to the production method, conventional devices are effectively used, and the prepared propylene/1-butene random copolymer has good performance.

0/0