公开(公告)号：EP1807454A1

公开(公告)日：2007-07-18

申请号：EP05820539.4

申请日：2005-11-03

申请人： LG Chem, Ltd.

发明人： CHOI, Yiyoung ,  PARK, Churlyoung, 8-505 Lg Company Housing Apt. ,  KWON, Hyuckju ,  AHN, Donghwan ,  LEE, Soonyeel, Po Institute, Lg Chem, Ltd.

IPC分类号： C08F4/64

CPC分类号： C08F10/00 ,  C08F110/02 ,  Y02P20/52 ,  C08F4/6545 ,  C08F4/651 ,  C08F4/6543 ,  C08F2500/18 ,  C08F2500/12 ,  C08F2500/24

摘要： A high-activity catalyst used to prepare polyethylene and a method of preparing polyolefin using the same are provided. When preparing the high-activity catalyst, a specific halogenated hydrocarbon is added to control the electrical properties of catalytic active sites and provide a large steric space around the catalytic active sites. Therefore, polyolefin with a wide range of molecular weights can be synthesized using the catalyst.

公开(公告)号：EP1844082B1

公开(公告)日：2015-03-11

申请号：EP06715770.1

申请日：2006-01-27

申请人： LG Chem, Ltd.

发明人： CHOI, Yiyoung ,  LEE, Ki-Soo ,  LEE, Sangwoo ,  CHAE, Hoon, 117-617 Hakyeoul Cheonggu Apt. ,  PARK, Churlyoung,8-505 Lg Company Housing Apt. ,  LEE, Choong-Hoon ,  LEE, Soojeong, 109-1201 Lucky Hana Apt.

IPC分类号： C08F4/6592 ,  C08F210/16

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/16 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/04 ,  C08F2500/05

公开(公告)号：EP1850957A1

公开(公告)日：2007-11-07

申请号：EP06715966.5

申请日：2006-02-14

申请人： LG Chem, Ltd.

发明人： LEE, Sangwoo ,  LEE, Ki-Soo ,  HAN, Yonggyu ,  CHOI, Yiyoung ,  CHAE, Hoon ,  JUNG, Seungwhan

IPC分类号： B01J31/02

CPC分类号： B01J31/2295 ,  B01J2231/122 ,  B01J2531/46 ,  B01J2531/48 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/16 ,  C08F2420/02 ,  Y02P20/52 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/11 ,  C08F2500/04 ,  C08F210/08

摘要： An ethylene-based copolymer prepared using a supported hybrid metallocene catalyst is provided. The ethylene-based copolymer is prepared using a supported hybrid metallocene catalyst in which two different metallocene catalysts are supported on a support and has a bimodal or multimodal molecular weight distribution. Accordingly, the ethylene-based copolymer has superior processability, sanitation, and internal pressure creep resistance at high temperature. A supported hybrid metallocene catalyst used to prepare the ethylene-based copolymer is also provided.

公开(公告)号：EP1844082A1

公开(公告)日：2007-10-17

申请号：EP06715770.1

申请日：2006-01-27

申请人： LG Chem, Ltd.

发明人： CHOI, Yiyoung ,  LEE, Ki-Soo ,  LEE, Sangwoo ,  CHAE, Hoon, 117-617 Hakyeoul Cheonggu Apt. ,  PARK, Churlyoung,8-505 Lg Company Housing Apt. ,  LEE, Choong-Hoon ,  LEE, Soojeong, 109-1201 Lucky Hana Apt.

IPC分类号： C08F4/64

CPC分类号： C08F10/00 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/6592 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/16 ,  C08F4/65904 ,  C08F210/14 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/04 ,  C08F2500/05

摘要： Provided are a mixed supported metallocene catalyst prepared by impregnating different supports with at least two metallocene compounds that can respectively induce the formation of a high molecular weight polymer and a low molecular weight polymer, a method of preparing the mixed supported matallocene catalyst, a method of preparing polyolefin using the mixed supported matallocene catalyst, and polyolefin prepared using the method of preparing polyolefin using the mixed supported matallocene catalyst. Polyolefin having desired properties can be produced using the mixed supported metallocene catalyst by controlling a molecular weight distribution according to a mixture ratio of the mixed supported metallocene catalyst. The mixed supported metallocene catalyst can be used in a wide range of applications, such as rotational molding products, injection forming products, films, containers, pipes, fibers, and the like. In particular, the high molecular weight component of the polymer produced using the mixed supported metallocene catalyst has substantially more of a comonomer than a polymer prepared using a conventional Ziegler-Natta catalyst, and thus a pipe having high temperature resistance and pressure resistance can be provided.