公开(公告)号：US12098224B2

公开(公告)日：2024-09-24

申请号：US17292503

申请日：2020-09-28

Applicant: LG Chem, Ltd.

Inventor： Ha Na Park ,  Sungho Choi ,  Hyein Ryu ,  Sangjin Jeon ,  Seungmi Lee

IPC: C08F210/02 ,  C08F210/16 ,  C08J5/18

CPC classification number: C08F210/02 ,  C08J5/18 ,  C08F2420/00 ,  C08J2323/08

Abstract: In the present disclosure, there are provided a polyethylene having improved low-temperature sealing properties with an increase in the content and molecular weight of a low crystalline polymer, and a method for preparing the same.

公开(公告)号：US12098158B2

公开(公告)日：2024-09-24

申请号：US17422998

申请日：2020-03-04

Applicant: LG Chem, Ltd.

Inventor： Insun Lee ,  Seok Hwan Kim ,  Byung Seok Kim ,  Donghyeon Gwon ,  Sangjin Jeon ,  Seyoung Kim

IPC: C07F17/00 ,  C08F4/6592 ,  C08F4/76 ,  C08F210/06

CPC classification number: C07F17/00 ,  C08F4/65927 ,  C08F4/76 ,  C08F210/06

Abstract: The present disclosure relates to a novel transition metal compound of the following Chemical Formula 1, which exhibits high hydrogen reactivity with excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a low melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same,






wherein M, X1, X2, R1 to R9 are described herein.

公开(公告)号：US11913935B2

公开(公告)日：2024-02-27

申请号：US17059724

申请日：2019-06-21

Applicant: LG Chem, Ltd.

Inventor： Hyunsup Lee ,  Seong Min Chae ,  Kyung Seop Noh ,  Heekwang Park ,  Ki Soo Lee ,  Sangjin Jeon ,  Myunghan Lee

IPC: G01N33/36 ,  D04H1/4291 ,  D04H1/56 ,  D04H3/007

CPC classification number: G01N33/367 ,  D04H1/4291 ,  D04H1/565 ,  D04H3/007 ,  G01N2203/0075

Abstract: The present invention relates to polypropylene non-woven fabric having excellent loft property, a method for preparing polypropylene non-woven fabric having excellent loft property, and a method for evaluating the properties of the polypropylene resin.

公开(公告)号：US20220098225A1

公开(公告)日：2022-03-31

申请号：US17422998

申请日：2020-03-04

Applicant: LG Chem, Ltd.

Inventor： Insun Lee ,  Seok Hwan Kim ,  Byung Seok Kim ,  Donghyeon Gwon ,  Sangjin Jeon ,  Seyoung Kim

IPC: C07F17/00 ,  C08F4/76

Abstract: The present disclosure relates to a novel transition metal compound of the following Chemical Formula 1, which exhibits high hydrogen reactivity with excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a low melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same, wherein M, X1, X2, R1 to R9 are described herein.

公开(公告)号：US11370851B2

公开(公告)日：2022-06-28

申请号：US17251026

申请日：2019-06-13

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Hye Kyung Lee ,  Sangjin Jeon ,  Seyoung Kim

IPC: C08F4/6592 ,  C08F110/06 ,  C07F17/00 ,  C08F4/52 ,  C08F4/642

Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.

公开(公告)号：US20220185916A1

公开(公告)日：2022-06-16

申请号：US17432205

申请日：2020-03-04

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Jung Won Lee ,  Donghyeon Gwon ,  Sangjin Jeon ,  Seyoung Kim ,  Heekwang Park

IPC: C08F4/6592 ,  C08F4/659 ,  C08F2/38 ,  C08F110/06

Abstract: The present disclosure relates to a novel transition metal compound represented by the following Chemical Formula 1, which exhibits excellent catalytic activity for propylene polymerization, and is useful in the preparation of a polypropylene having a narrow molecular weight distribution and a high melting point, a catalyst composition including the same, and a method for preparing a polypropylene using the same, wherein M, X1, X2, and R1 to R8 are described herein.

公开(公告)号：US20210189025A1

公开(公告)日：2021-06-24

申请号：US17251026

申请日：2019-06-13

Applicant: LG Chem, Ltd.

Inventor： Byung Seok Kim ,  Insun Lee ,  Seok Hwan Kim ,  Hye Kyung Lee ,  Sangjin Jeon ,  Seyoung Kim

IPC: C08F4/6592 ,  C08F4/642 ,  C08F4/52 ,  C08F110/06 ,  C07F17/00

Abstract: The present disclosure provides a novel transition metal compound which exhibits excellent catalytic activity and is useful in the preparation of a polypropylene having high impact strength, and a method for preparing a homo polypropylene using the same.

公开(公告)号：US20210061931A1

公开(公告)日：2021-03-04

申请号：US16960211

申请日：2019-10-28

Applicant: LG Chem, Ltd.

Inventor： Heekwang Park ,  Seong Min Chae ,  Kyung Seop Noh ,  Sangjin Jeon ,  Hyunsup Lee ,  Jihwa Ye

IPC: C08F210/06 ,  C08F210/02 ,  C08F210/08 ,  C08F2/02 ,  C08F2/28 ,  C08F2/44 ,  C08F4/6592 ,  C08L53/00 ,  D04H3/16

Abstract: A propylene copolymer resin composition capable of improving softness while maintaining excellent strength properties when preparing nonwoven fabrics, and a method for preparing the same are provided. The propylene copolymer resin composition includes a propylene-ethylene copolymer having an ethylene content of 12 to 18 wt % in the propylene-ethylene copolymer and a propylene-1-butene random copolymer satisfying the following conditions (i) to (iv), wherein (i) 1-butene content of 1 to 5 wt % in the propylene-1-butene random copolymer, (ii) molecular weight distribution of 2.4 or less, (iii) storage modulus of 1200 MPa or less at 25° C., and (iv) phase angle of 5.5° to 8° at a glass transition temperature, and wherein a weight ratio of the propylene-1-butene random copolymer to the propylene-ethylene copolymer is 80:20 to 99:1.

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：US20200240058A1

公开(公告)日：2020-07-30

申请号：US16643651

申请日：2018-12-17

Applicant: LG Chem, Ltd.

Inventor： Kyung Seop Noh ,  Seong Min Chae ,  Churl Young Park ,  Sangjin Jeon ,  Taejin Kim

IPC: D04H1/4291 ,  C08F110/06 ,  D04H1/44

Abstract: The polypropylene nonwoven fabric produced by the method for producing a polypropylene nonwoven fabric according to the present invention has features that it has excellent stretchability and excellent water pressure resistance.