公开(公告)号：US10266626B2

公开(公告)日：2019-04-23

申请号：US15549103

申请日：2016-04-12

Applicant: LG CHEM, LTD.

Inventor： Yu Taek Sung ,  Soon Ho Sun ,  Sol Cho ,  Yi Young Choi ,  Ki Soo Lee

IPC: C08F210/16 ,  C08F4/6592 ,  C08F4/659

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and surface characteristics and thus can be usefully applied to various products.

公开(公告)号：US12122903B2

公开(公告)日：2024-10-22

申请号：US17426493

申请日：2020-02-20

Applicant: LG Chem, Ltd.

Inventor： Hyunsup Lee ,  Sol Cho ,  Yeonsoo Kim ,  Yi Young Choi ,  Myunghan Lee

IPC: F16L11/04 ,  C08F4/659 ,  C08F4/6592 ,  C08F10/02 ,  C08F110/02 ,  C08K5/14 ,  C08L23/06 ,  C08L23/26

CPC classification number: C08L23/06 ,  C08F4/65904 ,  C08F4/65927 ,  C08F110/02 ,  C08K5/14 ,  F16L11/04 ,  C08F10/02 ,  C08F2420/00 ,  C08F2500/12 ,  C08F2810/20 ,  C08L23/26 ,  C08L2203/18 ,  C08L2312/00 ,  C08L2312/06

Abstract: The present disclosure relates to a crosslinked polyethylene pipe having excellent physical properties. The crosslinked polyethylene pipe according to the present disclosure has optimized the degree of crosslinking and storage modulus by finding out the optimum physical property range between the degree of crosslinking and the storage modulus which have a mutual trade-off relationship, whereby the crosslinked polyethylene pipe according to the present disclosure has excellent long-term durability and short-term pressure resistance, and thus can be applied to various fields requiring these physical properties.

公开(公告)号：US11091571B2

公开(公告)日：2021-08-17

申请号：US16084066

申请日：2017-08-18

Applicant: LG Chem, Ltd.

Inventor： Sung Ho Park ,  Heon Yong Kwon ,  Hyun Jee Kwon ,  Jin Young Lee ,  Ki Soo Lee ,  Dae Sik Hong ,  Sol Cho ,  Oh Joo Kwon

IPC: C08F210/16 ,  C07F17/00

Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.

公开(公告)号：US10717793B2

公开(公告)日：2020-07-21

申请号：US16313640

申请日：2017-11-07

Applicant: LG Chem, Ltd.

Inventor： Sol Cho ,  Ki Soo Lee ,  Heon Yong Kwon ,  Sung Hyun Park ,  Myung Han Lee ,  Oh Joo Kwon ,  Seung Mi Lee ,  Eun Ji Shin ,  Hyun Jee Kwon ,  Sung Ho Park ,  Seul Ki Im ,  Jin Young Lee

IPC: C08L23/08 ,  C08F210/16 ,  C08F4/653 ,  C08J5/18 ,  C08F4/6592 ,  C08F4/659 ,  B29C48/10 ,  B29C48/00 ,  B29K23/00 ,  B29K105/00

Abstract: The present invention provides an olefin polymer in which LCB (long chain branch) is introduced into mLLDPE (metallocene linear low-density polyethylene) to control the storage modulus, whereby the olefin polymer has excellent bubble stability and processing load characteristics and exhibits excellent processability during preparation of a film, and further has excellent mechanical properties and transparency.

公开(公告)号：US10323110B2

公开(公告)日：2019-06-18

申请号：US15501415

申请日：2016-04-15

Applicant: LG CHEM, LTD.

Inventor： Soon Ho Sun ,  Yi Young Choi ,  Ki Soo Lee ,  Eun Kyoung Song ,  Yu Taek Sung ,  Ye Jin Lee ,  Chang Woan Han ,  Sol Cho

IPC: C08F210/08 ,  C08F210/16 ,  C08F4/6592 ,  C08L23/08 ,  C08F4/659

Abstract: The present invention relates to an ethylene/alpha-olefin copolymer having excellent processability. The ethylene/alpha-olefin copolymer according to the present invention has excellent processability and is therefore suitable for producing products by an injection molding method.

公开(公告)号：US20240352176A1

公开(公告)日：2024-10-24

申请号：US18683926

申请日：2022-09-30

Applicant: LG Chem, Ltd.

Inventor： Sol Cho ,  Ji Hyun Park ,  Seul Ki Im ,  Hyun Mo Lee ,  Yun Kon Kim ,  Eun Ji Shin ,  Seok Pil Sa

IPC: C08F297/02 ,  C08L53/00

CPC classification number: C08F297/023 ,  C08L53/00

Abstract: A multiblock copolymer having a structure in which polystyrene chains are attached to both terminals of a polyolefin chain, a resin composition comprising same, and methods for preparing them are described herein.

公开(公告)号：US11746168B2

公开(公告)日：2023-09-05

申请号：US17541434

申请日：2021-12-03

Applicant: LG Chem, Ltd.

Inventor： Oh Joo Kwon ,  Sol Cho ,  Seung Ki Park ,  Ki Soo Lee ,  Heon Yong Kwon ,  Dae Sik Hong ,  Sung Hyun Park ,  Sung Ho Park ,  Jin Young Lee

IPC: C08F4/6592 ,  C08F210/16 ,  C08L23/08 ,  C08F4/659 ,  C08F210/14 ,  C08J5/18

CPC classification number: C08F210/16 ,  C08F4/65904 ,  C08F4/65916 ,  C08F4/65925 ,  C08F4/65927 ,  C08F210/14 ,  C08J5/18 ,  C08L23/0815 ,  C08F4/65912 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/26 ,  C08J2323/08 ,  C08F210/16 ,  C08F4/65904 ,  C08F210/16 ,  C08F4/65925 ,  C08F210/16 ,  C08F4/65927 ,  C08F210/16 ,  C08F210/14 ,  C08F2500/03 ,  C08F2500/08 ,  C08F2500/09 ,  C08F2500/11 ,  C08F2500/12 ,  C08F2500/18 ,  C08F2500/26

Abstract: The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.

公开(公告)号：US20220135712A1

公开(公告)日：2022-05-05

申请号：US17414616

申请日：2020-02-20

Applicant: LG Chem, Ltd.

Inventor： Sol Cho ,  Hyunsup Lee ,  Sun Mi Kim ,  Yi Young Choi ,  Myunghan Lee ,  Yeonsoo Kim

IPC: C08F110/02 ,  C08F4/6592 ,  C08F4/659 ,  C08K5/14 ,  C08J3/24 ,  C08L23/06 ,  F16L11/04

Abstract: The present disclosure relates to a polyethylene having high pressure resistance and a crosslinked polyethylene pipe including the same. The polyethylene according to the present disclosure has high melt index and density and exhibits a sufficient degree of crosslinking, thereby exhibiting excellent strength and pressure resistance characteristics.

公开(公告)号：US20220098393A1

公开(公告)日：2022-03-31

申请号：US17426493

申请日：2020-02-20

Applicant: LG Chem, Ltd.

Inventor： Hyunsup Lee ,  Sol Cho ,  Yeonsoo Kim ,  Yi Young Choi ,  Myunghan Lee

IPC: C08L23/06 ,  C08K5/14 ,  C08F110/02 ,  C08F4/659 ,  C08F4/6592 ,  F16L11/04

Abstract: The present disclosure relates to a crosslinked polyethylene pipe having excellent physical properties. The crosslinked polyethylene pipe according to the present disclosure has optimized the degree of crosslinking and storage modulus by finding out the optimum physical property range between the degree of crosslinking and the storage modulus which have a mutual trade-off relationship, whereby the crosslinked polyethylene pipe according to the present disclosure has excellent long-term durability and short-term pressure resistance, and thus can be applied to various fields requiring these physical properties.

公开(公告)号：US20220010110A1

公开(公告)日：2022-01-13

申请号：US17427481

申请日：2020-02-20

Applicant: LG Chem, Ltd.

Inventor： Sol Cho ,  Hyunsup Lee ,  Sun Mi Kim ,  Yi Young Choi ,  Myunghan Lee ,  Yeonsoo Kim

IPC: C08L23/06 ,  C08K5/14 ,  C08F4/6592 ,  C08F4/659

Abstract: The present disclosure relates to a polyethylene having high degree of crosslinking and a crosslinked polyethylene pipe including the same. The polyethylene according to the present disclosure has a high content of ultra-high molecular weight, and thus a crosslinking rate is improved, and thus a sufficient degree of crosslinking is exhibited even when the crosslinking time is shortened, thereby exhibiting excellent strength and pressure resistance characteristics.