公开(公告)号：US12169298B2

公开(公告)日：2024-12-17

申请号：US16760528

申请日：2019-03-06

Applicant: LG CHEM, LTD.

Inventor： Jung Hyun Seo ,  Kyungki Hong ,  Yeongrae Chang ,  Jin Young Park

IPC: G02B5/30 ,  G02B1/14 ,  G02F1/1335 ,  G02F1/13363

Abstract: The present invention relates to a polarizing plate including: a polarizer; a first hard coating layer positioned on the polarizer and containing binder resin including (meth) acrylate-based (co) polymer; a light transmitting substrate positioned on the first hard coating layer, having retardation of 3000 nm or more, and having in-plane birefringence; and a second hard coating layer positioned on the light transmitting substrate and including a binder resin, and solid-type inorganic nanoparticles dispersed in the binder resin, wherein the degree of a angle formed by the slow axis of the light transmitting substrate and the absorption axis of the polarizer is 5 to 85°, and an image display device including the same.

公开(公告)号：US10745426B2

公开(公告)日：2020-08-18

申请号：US15765613

申请日：2016-11-25

Applicant: LG Chem, Ltd.

Inventor： Seul Ki Im ,  Yong Ho Lee ,  Ki Soo Lee ,  Eun Ji Shin ,  Jin Young Park ,  Seok Pil Sa ,  Yoon Ki Hong

IPC: C07F9/50 ,  C07C11/107 ,  C07F9/02 ,  C07F9/70 ,  C07F11/00 ,  C07F9/90 ,  C08F4/69 ,  C08F10/00 ,  B01J31/18 ,  B01J31/34 ,  C08F10/02

Abstract: The present invention relates to a ligand compound, a catalyst system for olefin oligomerization and a method for oligomerizing an olefin using same. The catalyst system for olefin oligomerization according to the present invention exhibits high selectivity to 1-hexene or 1-octene while having excellent catalytic activity, thus enabling more efficient preparation of alpha-olefins.

公开(公告)号：US10688482B2

公开(公告)日：2020-06-23

申请号：US15544236

申请日：2016-02-05

Applicant: LG CHEM, LTD.

Inventor： Yoon Ki Hong ,  Yong Ho Lee ,  Eun Ji Shin ,  Ki Soo Lee ,  Jin Young Park ,  Seok Pil Sa ,  Seul Ki Im

IPC: C07C2/24 ,  B01J31/24 ,  C08K5/00 ,  C08K5/17 ,  B01J31/18 ,  B01J31/02 ,  B01J31/04 ,  B01J31/14 ,  C07C2/32 ,  C08F210/16 ,  C08F2/40 ,  C08F4/69 ,  C08F10/00 ,  C08K5/05 ,  C07F9/50 ,  B01J35/00 ,  B01J37/04 ,  C08F10/02

Abstract: A method for olefin oligomerization comprising i) injecting an olefin monomer and a solvent into a continuous stirred tank reactor; ii) injecting an oligomerization catalyst system comprising a ligand compound, a transition metal compound, and a co-catalyst into the continuous stirred tank reactor; and iii) performing a multimerization reaction of the olefin monomer, wherein a ratio of the flowing rates of the olefin monomer and the solvent is from 1:1 to 2:1.

公开(公告)号：US20200048381A1

公开(公告)日：2020-02-13

申请号：US16088661

申请日：2017-11-02

Applicant: LG Chem, Ltd.

Inventor： Soon Ho Sun ,  Yo Han Bae ,  Hyeong Il Lee ,  Yi Young Choi ,  Bog Ki Hong ,  Sung Min Lee ,  Sun Mi Kim ,  Jin Young Park

IPC: C08F210/16

Abstract: Provided is an ethylene/alpha-olefin copolymer having excellent environmental stress crack resistance.

公开(公告)号：US10513474B2

公开(公告)日：2019-12-24

申请号：US15551200

申请日：2015-12-11

Applicant: LG CHEM, LTD.

Inventor： Jin Young Park ,  Yong Ho Lee ,  Seung Mi Lee ,  Ki Soo Lee ,  Eun Ji Shin ,  Seok Pil Sa ,  Seul Ki Im

IPC: C07C2/32 ,  C08F4/6592 ,  C08F4/646 ,  C08F110/02 ,  C07C2/36 ,  C08F110/00 ,  C08F4/69 ,  C08F10/00 ,  C08F10/02 ,  B01J21/02 ,  B01J31/14 ,  B01J31/16 ,  B01J31/18 ,  B01J31/22 ,  B01J31/24 ,  B01J31/34 ,  C07C2/26 ,  C07C11/02 ,  C07C11/04 ,  B01J21/08 ,  C08F4/639 ,  C08F4/6392

Abstract: Provided are a catalyst composition and a method of oligomerizing olefins using the same. When the catalyst composition according to the present invention is used, oligomerization and copolymerization of olefin monomers may be performed in a single reactor at the same time with high efficiency without a separate process of preparing alpha-olefin. Therefore, costs for preparing or purchasing comonomers which are expensive raw materials may be reduced, thereby reducing the production cost of a final product. Contents of SCB (short chain branch) and LCB (long chain branch) in the polyolefin may be increased without separate feeding of comonomers, thereby producing high-quality linear low-density polyethylene.

公开(公告)号：US10471416B2

公开(公告)日：2019-11-12

申请号：US15529385

申请日：2016-02-02

Applicant: LG CHEM, LTD.

Inventor： Seul Ki Im ,  Yong Ho Lee ,  Eun Ji Shin ,  Jin Young Park ,  Seok Pil Sa ,  Ki Soo Lee

IPC: C07C2/24 ,  B01J31/24 ,  B01J31/02 ,  B01J31/04 ,  B01J31/14 ,  C07C2/32 ,  C08F210/16 ,  C08F2/40 ,  C08F4/69 ,  C08F10/00 ,  C08K5/05 ,  B01J31/18 ,  C07F9/50 ,  B01J35/00 ,  B01J37/04 ,  C08F10/02

Abstract: A method for oligomerizing an olefin comprising performing a multimerization reaction of an olefin in the presence of an oligomerization catalyst system comprising a ligand compound, a transition metal compound and a co-catalyst, and controlling a reaction temperature during the multimerization reaction in a range of 30 to 150° C., such that a product of the multimerization reaction comprising 1-hexene and 1-octene has a predetermined value of a weight ratio of 1-hexene and 1-octene selected from a range of 1:0.5 to 1:7.

公开(公告)号：US20190119421A1

公开(公告)日：2019-04-25

申请号：US16094722

申请日：2017-11-02

Applicant: LG Chem, Ltd.

Inventor： Soon Ho Sun ,  Yi Young Choi ,  Ki Soo Lee ,  Bog Ki Hong ,  Sung Hyun Park ,  Myung Han Lee ,  Sung Min Lee ,  Sun Mi Kim ,  Jin Young Park

IPC: C08F210/16

Abstract: The present disclosure relates to an ethylene/alpha-olefin copolymer having excellent processibility. The ethylene/alpha-olefin copolymer according to the present disclosure is excellent in both mechanical properties and processibility.

公开(公告)号：US20150140279A1

公开(公告)日：2015-05-21

申请号：US14404220

申请日：2013-05-31

Applicant: LG CHEM, LTD.

Inventor： Joon Koo Kang ,  Eun Kyu Her ,  Yeong Rae Chang ,  Soon Hwa Jung ,  Jin Young Park ,  Hyeok Jeong

IPC: C08J7/04 ,  G02B1/14 ,  B05D3/06

CPC classification number: G02B1/14 ,  B05D3/067 ,  C08F290/061 ,  C08F2222/1026 ,  C08F2222/1086 ,  C08G83/007 ,  C08J7/042 ,  C08J7/047 ,  C08J2363/02 ,  C08J2367/02 ,  C08J2400/21 ,  C08J2435/02 ,  C08J2475/14 ,  C09D4/00 ,  G02B1/105 ,  Y10T428/24628

Abstract: The present invention relates to a hard coating film and a preparation method thereof, and, more particularly, to a hard coating film having high hardness and excellent properties and a method of preparing the same. The method is advantageous in that a high-hardness hard coating film, which is not easily curled, can be easily prepared. The hard coating film prepared by this method can be usefully used in various fields because it has high hardness, scratch resistance, transparency, durability, light resistance, light transmittance and the like.

Abstract translation: 硬涂层及其制备方法技术领域本发明涉及硬涂膜及其制备方法，更具体地涉及硬度高，性能优异的硬涂膜及其制备方法。 该方法的优点在于可以容易地制备难以卷曲的高硬度硬涂膜。 通过该方法制备的硬涂膜可以有效地用于各种领域，因为它具有高硬度，耐擦伤性，透明性，耐久性，耐光性，透光率等。

公开(公告)号：US12072468B2

公开(公告)日：2024-08-27

申请号：US17441095

申请日：2020-05-15

Applicant: LG CHEM, LTD.

Inventor： Jin Young Park ,  Hanna Lee ,  Kyung Moon Ko ,  Yongjoon Heo ,  Yeongrae Chang ,  Jong Soo Do

IPC: G02B1/14 ,  B32B15/088 ,  B32B27/28 ,  C08J7/046 ,  G02B1/04

CPC classification number: G02B1/14 ,  B32B15/088 ,  B32B27/281 ,  C08J7/046 ,  G02B1/04 ,  B32B2255/10 ,  B32B2255/26 ,  B32B2307/412 ,  B32B2307/51 ,  B32B2307/536 ,  B32B2307/546 ,  B32B2307/584 ,  B32B2457/20

Abstract: The present disclosure relates to a cover window for a flexible display device comprising: a light-transmitting substrate; and a first hard coating layer and a second hard coating layer which are formed on both sides of the light-transmitting substrate, respectively, wherein each of the first hard coating layer and the second hard coating layer has IR spectra in which a ratio of the amide C═O peak to the ester C═O peak is in a predetermined range, and a flexible display device including the cover window for a flexible display device.

公开(公告)号：US11578189B2

公开(公告)日：2023-02-14

申请号：US16339987

申请日：2017-12-12

Applicant: LG CHEM, LTD.

Inventor： Jung Hyun Seo ,  Yeong Rae Chang ,  Jin Young Park ,  Han Na Lee

IPC: C08K7/26 ,  C09D7/65 ,  C09D7/61 ,  C08J7/04 ,  C09D5/00 ,  C09D135/02 ,  G02B1/111 ,  G02B5/02

Abstract: The present invention relates to an optical film exhibiting excellent optical properties such as low gloss value and reflectance, and an appropriate level of haze properties, and to an image display device including the same. The optical film comprises: a light-transmitting substrate film; an antiglare layer including a binder containing a (meth)acrylate-based crosslinked polymer, and organic fine particles of a micron (μm) scale dispersed on the binder and inorganic fine particles of a nanometer (nm) scale dispersed on the binder; and a low refractive index layer which is formed on the antiglare layer and includes a binder resin containing a (co)polymer of a photopolymerizable compound, and hollow silica particles dispersed in the binder resin, wherein the organic and inorganic fine particles exhibit a predetermined particle size distribution, refractive index difference, and content range.