公开(公告)号：US12049526B2

公开(公告)日：2024-07-30

申请号：US17560211

申请日：2021-12-22

Applicant: DL CHEMICAL CO., LTD.

Inventor： Jang Woo Lee ,  Sung Woo Kang ,  Byung Soon Chun ,  Soon Jae Kwon

IPC: C08F110/02 ,  B01J8/00 ,  B01J8/18 ,  C08F2/00 ,  C08F2/34 ,  C08F4/659 ,  C08F4/6592 ,  C08F210/02 ,  C08F210/14 ,  C08K5/01 ,  C08K5/103

CPC classification number: C08F210/02 ,  B01J8/003 ,  B01J8/1809 ,  B01J8/1872 ,  C08F2/001 ,  C08F2/34 ,  C08F4/65916 ,  C08F4/65922 ,  C08F210/14 ,  C08K5/01 ,  C08K5/103 ,  B01J2219/00186 ,  C08F2410/02 ,  C08K2201/017

Abstract: Disclosed is an antistatic agent for a metallocene olefin polymerization process and a polymerization method using the same, by which discontinuity event due to sheeting or drooling occurring in the olefin polymerization process can be effectively reduced, enabling continuous operation for a long time, and the obtained final product can be applied to various applications including food contact use. The present disclosure includes an olefin polymerization method, which comprises forming a mixture in which an antistatic agent containing diglycerol oleate is mixed with a low molecular weight hydrocarbon, supplying the antistatic agent mixture and a metallocene-based catalyst composition comprising a metallocene catalyst and aluminoxane to two or more polymerization reactors, and polymerizing one or more alpha-olefins in the presence of the antistatic agent mixture and catalyst composition.