公开(公告)号：US11358979B2

公开(公告)日：2022-06-14

申请号：US16957962

申请日：2018-12-21

Applicant: LG Chem, Ltd.

Inventor： Jae Youp Cheong ,  Heon Yong Kwon ,  Daesik Hong ,  Sangjin Jeon

IPC: C07F17/00 ,  C08F4/6592 ,  C08F110/06 ,  C08F10/06 ,  C08F4/659

Abstract: The present invention relates to a supported catalyst comprising a novel metallocene compound having excellent polymerization activity, and a method for producing polypropylene comprising polymerizing propylene in the presence of the catalyst. The supported metallocene-catalyst of the present invention can produce a polypropylene having a relatively narrow molecular weight distribution and a SPAN value.

公开(公告)号：US20220056163A1

公开(公告)日：2022-02-24

申请号：US17438185

申请日：2020-08-14

Applicant: LG Chem, Ltd.

Inventor： Sanghoon Lee ,  Sangeun An ,  Seok Hwan Kim ,  Daesik Hong ,  Donghyeon Gwon

IPC: C08F4/6592 ,  C08F2/38 ,  C08F110/06 ,  C08F4/646

Abstract: The hybrid supported metallocene catalyst according to the present disclosure comprises at least one first metallocene compound selected from compounds represented by the following Chemical Formula 1; and at least one second metallocene compound selected from compounds represented by the following Chemical Formula 3, and exhibits high activity in propylene polymerization and is useful for preparing polypropylene having high melt tension through the introduction of long chain branches (LCB) into polypropylene molecules, and a method for preparing a polypropylene using the same, wherein all the variables are described herein.

公开(公告)号：US20200339790A1

公开(公告)日：2020-10-29

申请号：US16956149

申请日：2018-12-21

Applicant: LG Chem, Ltd.

Inventor： Joongsoo Kim ,  Hyuck Ju Kwon ,  Yi Young Choi ,  Ki Soo Lee ,  Jongsang Park ,  Daesik Hong ,  Ye Jin Lee ,  Jinyoung Kwak

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/6592 ,  C08F4/646

Abstract: Provided is an ethylene/1-butene copolymer having excellent processability and stress cracking resistance. The ethylene/1-butene copolymer according to the present invention may be applied to a high-pressure resistant heating pipe, a PE-RT pipe, a large diameter pipe, etc.

公开(公告)号：US12091477B2

公开(公告)日：2024-09-17

申请号：US17311794

申请日：2020-09-28

Applicant: LG Chem, Ltd.

Inventor： Joongsoo Kim ,  Changsub Kim ,  Jinyoung Kwak ,  Jaeyoung Cho ,  Bog Ki Hong ,  Daesik Hong

IPC: C08F210/16 ,  C08F210/02 ,  F16L9/12 ,  C08F4/6592

CPC classification number: C08F210/02 ,  C08F210/16 ,  F16L9/12 ,  C08F4/6592 ,  C08F2800/20

Abstract: Provided is an ethylene/1-hexene copolymer which has excellent long-term physical properties and processability, and thus may be usefully applied to manufacturing high-pressure resistant heating pipes, PE-RT pipes, large-diameter pipes, or the like.

公开(公告)号：US11384183B2

公开(公告)日：2022-07-12

申请号：US17043194

申请日：2020-01-15

Applicant: LG Chem, Ltd.

Inventor： Ye Jin Lee ,  Eun Kyoung Song ,  Daesik Hong ,  Hye Kyung Lee ,  Joongsoo Kim ,  Eunyoung Shin ,  Jinyoung Kwak

IPC: C08F4/653 ,  C08F4/6592 ,  C08F210/16 ,  C08L23/08 ,  C07F17/00 ,  C08F4/659

Abstract: A catalyst composition, a method from preparing an olefin polymer using the same, and an olefin polymer prepared from the same are disclosed herein. In some embodiments, a catalyst composition includes a first metallocene compound represented by the Chemical Formula 1, a second metallocene compound represented by the Chemical Formula 2, and a support. The catalyst composition can exhibit high activity in an olefin polymerization reaction and thus contribute to reducing catalyst costs, and can also exhibit high copolymerizability which can secure excellent processability and long-term physical properties, and thus, is suitable for providing polymers for pipes.

公开(公告)号：US20220017667A1

公开(公告)日：2022-01-20

申请号：US17311794

申请日：2020-09-28

Applicant: LG Chem, Ltd.

Inventor： Joongsoo Kim ,  Changsub Kim ,  Jinyoung Kwak ,  Jaeyoung Cho ,  Bog Ki Hong ,  Daesik Hong

IPC: C08F210/02 ,  F16L9/12

Abstract: Provided is an ethylene/1-hexene copolymer which has excellent long-term physical properties and processability, and thus may be usefully applied to manufacturing high-pressure resistant heating pipes, PE-RT pipes, large-diameter pipes, or the like.

公开(公告)号：US20210395411A1

公开(公告)日：2021-12-23

申请号：US17282524

申请日：2019-12-20

Applicant: LG Chem, Ltd.

Inventor： Jinyoung Lee ,  Sung Min Lee ,  Jeongkyu Lee ,  Hyojoon Lee ,  Seyoung Kim ,  Sung Ho Park ,  Seul Ki Im ,  Seok Hwan Kim ,  Daesik Hong

IPC: C08F210/16

Abstract: The present invention relates to polyolefin. More specifically, the present invention relates to polyolefin having excellent dart drop impact strength, and exhibiting improved transparency, and such polyolefin has a density of 0.915 g/cm3 to 0.930 g/cm3 measured according to ASTM D1505; a nd has an ethylene sequence inhomogeneity(I) calculated by the following Equation 1 of 1.25 to 1.40, when analyzed by SSA(Successive Self-nucleation and Annealing): Inhomogeneity (I)=Lw/Ln   [Equation 1] in the Equation 1, Lw is weighted average(unit: nm) of ESL(Ethylene sequence length), and Ln is arithmetic m ean(unit: nm) of ESL(Ethylene sequence length).

公开(公告)号：US20200369701A1

公开(公告)日：2020-11-26

申请号：US16957962

申请日：2018-12-21

Applicant: LG Chem, Ltd.

Inventor： Jae Youp Cheong ,  Heon Yong Kwon ,  Daesik Hong ,  Sangjin Jeon

IPC: C07F17/00 ,  C08F10/06

Abstract: A supported catalyst including a novel metallocene compound having excellent polymerization activity, and a method for producing polypropylene by polymerizing propylene in the presence of the catalyst are provided. The metallocene-supported catalyst of the present invention can produce a polypropylene having a relatively narrow molecular weight distribution and a SPAN value.

公开(公告)号：US11731123B2

公开(公告)日：2023-08-22

申请号：US17942559

申请日：2022-09-12

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Hye Kyung Lee ,  Heekwang Park ,  Daesik Hong ,  Sangjin Jeon

IPC: C08F2/38 ,  B01J37/04 ,  C08F4/6592 ,  C08F10/06

CPC classification number: B01J37/04 ,  C08F4/65927 ,  C08F10/06

Abstract: Provided are a method of preparing a supported metallocene catalyst, and a method of preparing polypropylene using the catalyst prepared thereby. According to the present invention, provided is a supported metallocene catalyst capable of preparing an isotactic polypropylene polymer having a low xylene soluble content while having excellent catalytic activity.

公开(公告)号：US20220177614A1

公开(公告)日：2022-06-09

申请号：US17599263

申请日：2020-10-07

Applicant: LG Chem, Ltd.

Inventor： Eun Kyoung Song ,  Sun Mi Kim ,  Si Jung Lee ,  Bog Ki Hong ,  Cheolhwan Jeong ,  Daesik Hong

IPC: C08F8/20 ,  C08F4/6592 ,  C08F4/659 ,  C08F110/02 ,  C08L23/28 ,  C08L27/06

Abstract: The present disclosure relates to a polyethylene, which is reacted with chlorine to prepare a chlorinated polyethylene having excellent chlorination productivity and thermal stability by enabling an increase in chlorination temperature, and facilitating deoxidation, dehydration and drying processes during chlorination processing, by implementing an enlarged area of the middle and high molecular weight regions in the molecular structure of the polyethylene.