METHOD FOR MANUFACTURING ULTRA-HIGH MOLECULAR WEIGHT POLYPROPYLENE

• Main Authors: HA, Yunsun, KANG, Kapku, PARK, Yoonhyun, HA, Hyun Soo, HONG, Jinho, YOO, Myeongyeol, KIM, Younghwan, SON, Hojin
• Format: Patent
• Language: English; French; Korean
• Published: 25.05.2023
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to a method for manufacturing an ultra-high molecular weight polypropylene having a viscosity average molecular weight of 1,000,000 g/mol or greater and a low inorganic content of 30 ppm or less. According to the method for manufacturing an ultra-high molecular weight polypropylene of the present invention, there is the effect that the molecular weight control for producing an ultra-high molecular weight propylene can be achieved with the main catalyst, co-catalyst and co-catalyst input ratio even if hydrogen used as a molecular weight regulator in general polymerization conditions is not added. La présente invention concerne un procédé de fabrication d'un polypropylène à poids moléculaire très élevé ayant un poids moléculaire moyen en viscosité de 1,000,000 g/mol ou plus et une faible teneur en inorganiques de 30 ppm ou moins. Le procédé de fabrication d'un polypropylène à poids moléculaire très élevé de la présente invention, est caractérisé en ce que l'effet de contrôle de poids moléculaire pour produire un propylène de poids moléculaire extrêmement élevé peut être obtenu avec le rapport d'incorporation de catalyseur principal, de co-catalyseur et de co-catalyseur même sans l'ajout d'hydrogène utilisé comme régulateur de poids moléculaire dans des conditions générales de polymérisation. 본 발명은 점도평균분자량이 100만 g/mol 이상이고, 30ppm 이하의 낮은 무기물 함량을 가지는 초고분자량 폴리프로필렌의 제조방법에 관한 것이다. 본 발명의 초고분자량 폴리프로필렌의 제조방법에 의하면, 일반적인 중합 조건에서의 분자량 조절제로 사용되는 수소를 첨가하지 않더라도, 주촉매, 공촉매 및 조촉매의 투입 비율에 의하여 초고분자량 폴리프로필렌의 제조를 위한 분자량 조절이 가능한 효과가 있다.