公开(公告)号：US11384180B2

公开(公告)日：2022-07-12

申请号：US16464871

申请日：2018-10-01

Applicant: LG Chem, Ltd.

Inventor： Taejin Kim ,  Seong Min Chae ,  Kyung Seop Noh ,  Sang Jin Jeon ,  In Yong Jung

IPC: C08F110/06 ,  C08F4/643 ,  C08F4/659 ,  C08F4/6592 ,  C07F17/00 ,  A47L13/16 ,  D04H1/4291 ,  D04H3/007

Abstract: The present invention provides a homopolypropylene having high strength and a low content of low molecular weights together with excellent processability, and a preparation method thereof.

公开(公告)号：US20220098338A1

公开(公告)日：2022-03-31

申请号：US17546307

申请日：2021-12-09

Applicant: LG Chem, Ltd.

Inventor： Seok Hwan Kim ,  Hyunsup Lee ,  Seong Min Chae ,  Taejin Kim ,  Dae Sik Hong ,  Sang Jin Jeon ,  Hee Kwang Park

IPC: C08F110/06 ,  C07F17/00

Abstract: The present disclosure relates to a polypropylene for injection having a high content of ultra-high molecular weight and excellent rigidity, and a method for preparing the same.

公开(公告)号：US11248072B2

公开(公告)日：2022-02-15

申请号：US16635730

申请日：2018-11-01

Applicant: LG Chem, Ltd.

Inventor： Seok Hwan Kim ,  Hyunsup Lee ,  Seong Min Chae ,  Taejin Kim ,  Dae Sik Hong ,  Sang Jin Jeon ,  Hee Kwang Park

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

Abstract: The present disclosure relates to a polypropylene for injection having a high content of ultra-high molecular weight and excellent rigidity, and a method for preparing the same.

公开(公告)号：US20200207968A1

公开(公告)日：2020-07-02

申请号：US16616168

申请日：2018-07-11

Applicant: LG Chem, Ltd.

Inventor： Hee Kwang Park ,  Kyung Seop Noh ,  Sang Jin Jeon ,  Hyunsup Lee ,  In Sun Lee ,  Jin Hyun Park ,  Changkwon Chung

IPC: C08L23/20 ,  C08F210/08 ,  C08F210/06 ,  C08F4/6592

Abstract: The present invention relates to a propylene-butene copolymer resin composition used for non-woven fabric, a method of preparing the same, and spunbond non-woven fabric manufactured using the composition, and particularly, by optimizing a content of 1-butene in a metallocene polypropylene resin composition to 0.5 to 5.0 wt %, while simultaneously optimizing both of a melt index and a residual stress ratio of the resin composition, has a merit of having a reduced modulus together with a high conversion rate to manufacture non-woven fabric which is softer than existing products while maintaining high strength.

公开(公告)号：US10604597B2

公开(公告)日：2020-03-31

申请号：US15765762

申请日：2017-02-13

Applicant: LG Chem, Ltd.

Inventor： Ji Ho Choi ,  In Yong Jung ,  Kyung Seop Noh ,  Won-Sang Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Sang Hoon Lee

IPC: C08F110/06 ,  C08F4/653 ,  C08F4/6592 ,  C08L23/12 ,  C08F10/06 ,  C08F4/648 ,  C08F4/659

Abstract: The present invention relates to a polypropylene which exhibits high transparency and has a very low level of generation of volatile organic compounds, which has a total volatile organic compounds (TVOC) value of 60 μg/g or less, which is measured according to VDA 277 standardized by the German Automobile Industry Association by heating the polypropylene for 12 to 5 hours and converting all hydrocarbons detected per 1 g into an acetone content, and a haze value of 5% or less.

公开(公告)号：US20190224661A1

公开(公告)日：2019-07-25

申请号：US15774448

申请日：2017-07-07

Applicant: LG Chem, Ltd.

Inventor： Hee Kwang Park ,  Hye Kyung Lee ,  Byung Seok Kim ,  Jae Youp Cheong ,  Sang Jin Jeon

IPC: B01J31/22 ,  C08F4/6592 ,  C08F4/658 ,  B01J37/03

Abstract: A method of preparing a high-purity metallocene catalyst capable of providing various selectivities and high activities for polyolefin copolymers, wherein a metallocene compound is formed by reacting a ligand compound with a zirconium compound, and then lithium chloride as a reaction by-product included in the metallocene compound is prepared in a form of a complex compound and effectively removed in a subsequent step of extracting the catalyst, thereby effectively preparing the high-purity metallocene catalyst, is provided.

公开(公告)号：US20240427952A1

公开(公告)日：2024-12-26

申请号：US18685314

申请日：2023-06-01

Applicant: LG Chem, Ltd.

Inventor： Sung Nam Moon ,  Hyun Tae Kim ,  Sang Jin Jeon ,  Jin Mi Jung ,  Jin Uk Choi ,  Dam Hyeok Im

IPC: G06F30/17

Abstract: A strength prediction system for a multilayer material with n films stacked includes an input portion where one or more values are entered. The values include the elastic modulus of each layer, Poisson's ratio, Young's modulus, thickness, stacking angle, principal stress direction strength, and the total thickness of the multilayer material. The strength prediction system also includes a control portion that calculates the strength of a multilayer material by applying the values entered in the input portion, a display connected to the control portion, and a storage portion connected to the control portion. The control portion defines a strength value of a multilayer material. A method for predicting the strength of a multilayer material having two or more films stacked thereto is also provided.

公开(公告)号：US20200223962A1

公开(公告)日：2020-07-16

申请号：US16635730

申请日：2018-11-01

Applicant: LG Chem, Ltd.

Inventor： Seok Hwan Kim ,  Hyunsup Lee ,  Seong Min Chae ,  Taejin Kim ,  Dae Sik Hong ,  Sang Jin Jeon ,  Hee Kwang Park

IPC: C08F110/06 ,  C07F17/00

Abstract: The present disclosure relates to a polypropylene for injection having a high content of ultra-high molecular weight and excellent rigidity, and a method for preparing the same.

公开(公告)号：US10280238B2

公开(公告)日：2019-05-07

申请号：US15557328

申请日：2016-06-28

Applicant: LG CHEM, LTD.

Inventor： Byung Seok Kim ,  Hee Kwang Park ,  Kyung Seop Noh ,  Sang Eun An ,  In Sun Lee ,  Hye Kyung Lee ,  Sang Jin Jeon ,  Ra Yun Choi

IPC: C07F17/00 ,  C08F4/6592 ,  C08F110/06 ,  C08F10/06 ,  C07F5/02 ,  C07F5/06 ,  C07F7/00 ,  C07F7/02 ,  C07F7/08 ,  C08F4/659

Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.

公开(公告)号：US20180237560A1

公开(公告)日：2018-08-23

申请号：US15753570

申请日：2016-11-30

Applicant: LG Chem, Ltd.

Inventor： Kyung Seop Noh ,  Ki Soo Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Ji Ho Choi ,  Jae Youp Cheong ,  Hee Kwang Park ,  Sang Hoon Lee

IPC: C08F10/06 ,  C08K7/02 ,  C08K7/06 ,  C08J5/04

CPC classification number: C08F10/06 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F110/06 ,  C08F2420/02 ,  C08J5/04 ,  C08J5/041 ,  C08J5/042 ,  C08J5/046 ,  C08K7/02 ,  C08K7/06 ,  C08K7/14 ,  C08F4/65927 ,  C08F2/02 ,  C08F2500/03 ,  C08F2500/12 ,  C08F2500/15 ,  C08L23/00 ,  C08L23/12

Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method.