公开(公告)号：US20200223962A1

公开(公告)日：2020-07-16

申请号：US16635730

申请日：2018-11-01

申请人： LG Chem, Ltd.

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

IPC分类号： C08F110/06 ,  C07F17/00

摘要： 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

申请人： LG CHEM, LTD.

发明人： 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分类号： C07F17/00 ,  C08F4/6592 ,  C08F110/06 ,  C08F10/06 ,  C07F5/02 ,  C07F5/06 ,  C07F7/00 ,  C07F7/02 ,  C07F7/08 ,  C08F4/659

摘要： 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

申请人： LG Chem, Ltd.

发明人： 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分类号： C08F10/06 ,  C08K7/02 ,  C08K7/06 ,  C08J5/04

CPC分类号： 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

摘要： 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.

公开(公告)号：US09884926B2

公开(公告)日：2018-02-06

申请号：US14910977

申请日：2015-10-08

申请人： LG CHEM, LTD.

发明人： Hee Kwang Park ,  Hye Kyung Lee ,  Byung Seok Kim ,  Jae Youp Cheong ,  Kyung Seop Noh ,  Ra Yun Choi ,  Sang Hoon Lee ,  Sang Jin Jeon

IPC分类号： C07F17/00 ,  C08F4/6592 ,  C08F110/06 ,  C08F210/06 ,  C08F10/06 ,  C08F10/00

CPC分类号： C08F10/06 ,  C07F17/00 ,  C08F4/6592 ,  C08F4/65927 ,  C08F10/00

摘要： The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.

公开(公告)号：US20230334195A1

公开(公告)日：2023-10-19

申请号：US18028809

申请日：2022-08-22

申请人： LG Chem, Ltd.

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

IPC分类号： G06F30/20

CPC分类号： G06F30/20

摘要： The present technology relates to a system and method for predicting the physical properties of a multilayer material, and the system and method may predict physical properties such as the elastic modulus, shear modulus, and Poisson's ratio of an entire laminate when a multilayer material having a laminated structure is developed, and may predict not only the homogenized robustness of the entire laminate of the multilayer material, but also the stress and strain of each layer at the time of occurrence of external forces including expansion stress considering environmental factors such as a temperature change or a humidity change are generated.

公开(公告)号：US10976229B2

公开(公告)日：2021-04-13

申请号：US16090732

申请日：2017-08-31

申请人： LG Chem, Ltd.

发明人： Hyun Sup Lee ,  Ki Soo Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Myung Han Lee ,  Hee Kwang Park ,  Sang Eun Kim ,  Sang Hoon Lee

IPC分类号： G01N11/00 ,  G01N11/14 ,  B29C49/78 ,  D01D5/098

摘要： The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.

公开(公告)号：US20190113428A1

公开(公告)日：2019-04-18

申请号：US16090732

申请日：2017-08-31

申请人： LG Chem, Ltd.

发明人： Hyun Sup Lee ,  Ki Soo Lee ,  Sang Jin Jeon ,  Sang Eun An ,  Myung Han Lee ,  Hee Kwang Park ,  Sang Eun Kim ,  Sang Hoon Lee

IPC分类号： G01N11/00

摘要： The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.

公开(公告)号：US09771441B2

公开(公告)日：2017-09-26

申请号：US15023626

申请日：2014-09-30

申请人： LG CHEM, LTD.

发明人： Ji Ho Choi ,  Churl Young Park ,  Kyung Seop Noh ,  Won Hee Kim ,  Sang Jin Jeon ,  Ra Yun Choi ,  Byung Seok Kim

IPC分类号： C08F4/6592 ,  C08F4/642 ,  C08F4/643 ,  C08F110/06 ,  C08F4/659

CPC分类号： C08F110/06 ,  C08F4/65908 ,  C08F4/65912 ,  C08F4/65916 ,  C08F4/65927 ,  C08F2500/12 ,  C08F2500/24 ,  C08F2500/02

摘要： The present invention relates to a preparation method of a polypropylene and a polypropylene obtained therefrom. More specifically, it relates to a method of preparing a polypropylene by using a catalyst that includes a novel metallocene compound having an excellent polymerization activity, and a polypropylene obtained by the method.According to the present invention, since the polypropylene is prepared by polymerizing propylene by using a novel metallocene compound having an excellent polymerization activity and hydrogen reactivity, the properties of the polypropylene can be easily controlled and the polypropylene having excellent mechanical properties can be obtained.

公开(公告)号：US11198779B2

公开(公告)日：2021-12-14

申请号：US16616168

申请日：2018-07-11

申请人： LG Chem, Ltd.

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

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

摘要： 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-buttene 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：US11111323B2

公开(公告)日：2021-09-07

申请号：US16636719

申请日：2018-11-08

申请人： LG Chem, Ltd.

发明人： Hee Kwang Park ,  Byung Seok Kim ,  Kyung Seop Noh ,  Sang Jin Jeon ,  Seong Min Chae

IPC分类号： C08F110/06 ,  C08F4/659 ,  C08F4/76 ,  D04H1/4291 ,  C08F2/02 ,  C08F4/6592

摘要： The present invention relates to homopolypropylene resin for non-woven fabric, and according to the present invention, by optimizing tacticity to 80% to 90%, having narrow molecular weight distribution of 2.4 or less, and fulfilling melt index of 20 g/10 min to 30 g/10 min, melting point of 145° C. or less, and residual stress rate of 0.05% or less, thereby optimizing modulus, high strength non-woven fabric that is softer than the existing products, and is not easily torn due to high tenacity, can be prepared.