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    • 38. 发明专利
    • Method for producing propylene polymer
    • 丙烯聚合物的制备方法
    • JP2014144994A
    • 2014-08-14
    • JP2013012564
    • 2013-01-25
    • Idemitsu Kosan Co Ltd出光興産株式会社
    • NISHIDA MASAYUKIKANAMARU MASAMIYAMAZAKI HOKUTO
    • C08F10/06C08F2/38C08F4/6592
    • PROBLEM TO BE SOLVED: To provide a method for producing a propylene polymer whose stereoregularity is more precisely controlled without changing molecular weight of the polymer.SOLUTION: The method for producing a propylene polymer having controlled stereoregularity includes: a polymerization step comprising supplying hydrogen and propylene into a reactor, and subjecting the propylene to a polymerization reaction in the presence of a transition metal complex and an organoaluminum to form a propylene polymer; a step for measuring the stereoregularity (mmmm%) of an obtained propylene polymer; and a control step comprising comparing the measured value of the stereoregularity of the obtained propylene polymer with a target value, and performing an operation such as increasing the concentration of the organoaluminum in the reaction vessel or the like in a case when the measured value is higher than the target value, or performing an operation such as decreasing the concentration of the organoaluminum in the reaction vessel or the like in a case when the measured value is lower than the target value.
    • 要解决的问题:提供一种制备丙烯聚合物的方法,其立体规整性更精确地控制,而不改变聚合物的分子量。溶液:具有受控的立构规整性的丙烯聚合物的制备方法包括:聚合步骤,包括供应氢气和丙烯 在过渡金属配合物和有机铝的存在下使丙烯进行聚合反应以形成丙烯聚合物; 测定所得丙烯聚合物的立构规整度(mmmm%)的步骤; 以及控制步骤,包括将获得的丙烯聚合物的立构规整度的测量值与目标值进行比较,并且在测量值较高的情况下进行诸如增加反应容器等中的有机铝浓度的操作 或者在测定值低于目标值的情况下进行诸如降低反应容器等中的有机铝的浓度的操作。