公开(公告)号：US20210301055A1

公开(公告)日：2021-09-30

申请号：US17260760

申请日：2020-01-10

申请人： LG CHEM, LTD.

发明人： Seokhoon Jang ,  Heon Kim ,  Se Hyun Kwon ,  Yeongrae Chang

IPC分类号： C08F263/04 ,  C08K5/02 ,  C08K5/521 ,  C08L31/04

摘要： The present disclosure relates to a photopolymer composition for hologram production comprising a polymer matrix or a precursor thereof having a glass transition temperature of 80° C. or less; a photoreactive monomer; a low refractive index fluorine-based compound; and a photoinitiator, a hologram recording medium produced from the photopolymer composition, an optical element comprising the hologram recording medium, and a holographic recording method using the hologram recording medium.

公开(公告)号：US11591433B2

公开(公告)日：2023-02-28

申请号：US16762009

申请日：2018-12-07

申请人： LG CHEM, LTD.

发明人： Heon Kim ,  Yeongrae Chang ,  Seokhoon Jang ,  Se Hyun Kwon

IPC分类号： C08F2/50 ,  C08F20/18 ,  C08F290/06 ,  C08G18/10 ,  C08G18/42 ,  C08G18/81 ,  C08L75/12 ,  C08L75/06 ,  G03F7/035 ,  G11B7/2535 ,  G11B7/08 ,  G03H1/02

摘要： The present disclosure is to provide a photopolymer composition including a polymer matrix or a precursor thereof including a reaction product of a reactive isocyanate compound having a hydrogen bonding functional group capable of forming multiple hydrogen bonds and at least one isocyanate group, and a polyol having at least two hydroxyl groups; a photoreactive monomer; and a photoinitiator, a hologram recording medium produced from the photopolymer composition, an optical element including the photopolymer composition and a holographic recording method using the photopolymer composition.

公开(公告)号：US11994704B2

公开(公告)日：2024-05-28

申请号：US16972547

申请日：2019-09-11

申请人： LG CHEM, LTD.

发明人： Seokhoon Jang ,  Jinseok Byun ,  Heon Kim ,  Se Hyun Kwon ,  Yeongrae Chang

IPC分类号： G02B5/32 ,  C08L33/10 ,  G03F7/075 ,  G03H1/02

CPC分类号： G02B5/32 ,  C08L33/10 ,  G03F7/075 ,  G03H2001/0264 ,  G03H2260/12

摘要： The present disclosure relates to a hologram recording medium having one surface with a higher surface energy than a polymer resin layer containing at least one polymer selected from the group consisting of triacetyl cellulose, alicyclic olefin polymer and polyethylene terephthalate, a hologram recording medium wherein the surface energy of any one surface is 50 mN/m or more, and an optical element comprising the hologram medium.

公开(公告)号：US11435664B2

公开(公告)日：2022-09-06

申请号：US16968084

申请日：2019-12-13

申请人： LG CHEM, LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Heon Kim ,  Yoosik Kim ,  Raisa Kharbash ,  Se Hyun Kwon ,  Yeongrae Chang ,  Seokhoon Jang

IPC分类号： G03H1/02 ,  G03F7/031 ,  G03F7/035 ,  G03F7/027 ,  G03F7/075 ,  G03F7/105 ,  C08J3/24 ,  C08F220/18 ,  G03F7/00

摘要： Provided is a photopolymer composition for hologram recording comprising: a polymer matrix or a precursor thereof; a dye including a compound of the following Chemical Formula 1; a photoreactive monomer; and a photoinitiator,

公开(公告)号：US11292888B2

公开(公告)日：2022-04-05

申请号：US16756072

申请日：2018-10-16

申请人： LG CHEM, LTD.

发明人： Seok Hoon Jang ,  Heon Kim ,  Boo Kyung Kim ,  Yeong Rae Chang ,  Yongjoon Heo ,  Se Hyun Kwon

IPC分类号： G03H1/02 ,  G03F7/035 ,  G11B7/245 ,  C08G18/79 ,  C08G18/78 ,  C08G18/32 ,  C08G18/08 ,  C08K5/02 ,  G11B7/0065 ,  C08K5/00 ,  G03H1/26

摘要： A photopolymerizable composition including: a polymer matrix or a precursor thereof containing a reaction product of an acrylate-based polyol and a compound containing at least one isocyanate group; a photoreactive monomer; and a non-reactive fluoro compound and a photoinitiator; a hologram recording medium produced from the composition; an optical element including the hologram recording medium; and a method of recording a hologram using the photopolymerizable composition.

公开(公告)号：US11760647B2

公开(公告)日：2023-09-19

申请号：US16767303

申请日：2018-12-07

申请人： LG CHEM, LTD.

发明人： Hee Jung Choi ,  Se Hyun Kwon ,  Yeong Rae Chang ,  Seok Hoon Jang

IPC分类号： B01J13/00 ,  C01B33/158 ,  C01B33/159 ,  C08G77/46 ,  C08K5/5455

CPC分类号： C01B33/1585 ,  B01J13/0091 ,  C01B33/159 ,  C08G77/46 ,  C08K5/5455 ,  C01P2006/90

摘要： Provided is a hydrophobic silica aerogel precursor, and a hydrophobic silica aerogel produced using the same. In the methods, a linear silane crosslinking agent containing a PEG-derived unit is introduced when preparing a hydrophobic aerogel precursor, resulting in the production of a hydrophobic silica aerogel having improved high-temperature thermal stability and improved physical properties.

公开(公告)号：US11126082B2

公开(公告)日：2021-09-21

申请号：US16606431

申请日：2018-12-07

申请人： LG CHEM, LTD.

发明人： Seokhoon Jang ,  Sooyoung Kwak ,  Heon Kim ,  Se Hyun Kwon ,  Yeongrae Chang

IPC分类号： G03H1/02 ,  G03H1/04 ,  G03F7/00 ,  G03F7/24 ,  G03F7/004 ,  G03F7/033 ,  G11B7/24 ,  G11B7/0065 ,  C08K5/00 ,  G03F7/075 ,  G03F7/027

摘要： The present disclosure is to provide a photopolymer composition including a polymer matrix or a precursor thereof having a specific chemical structure; a photoreactive monomer; and a photoinitiator. The present disclosure is also to provide a hologram recording medium, an optical element, and a holographic recording method using the photopolymer composition.

公开(公告)号：US11084933B2

公开(公告)日：2021-08-10

申请号：US16651906

申请日：2018-12-07

申请人： LG CHEM, LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Heon Kim ,  Yoosik Kim ,  Raisa Kharbash ,  Se Hyun Kwon ,  Yeongrae Chang ,  Seokhoon Jang

IPC分类号： C09B57/00 ,  C08K5/55 ,  C07F5/02 ,  G03H1/02 ,  G03F7/028 ,  G03F7/033 ,  G03F7/035 ,  G03H1/04

摘要： The present invention relates to a compound having a novel structure, a photopolymer composition including the compound as a dye, a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the hologram recording medium.

公开(公告)号：US12001141B2

公开(公告)日：2024-06-04

申请号：US16976206

申请日：2019-04-29

申请人： LG CHEM, LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Heon Kim ,  Yoosik Kim ,  Raisa Kharbash ,  Se Hyun Kwon ,  Yeongrae Chang ,  Seokhoon Jang

IPC分类号： G03F7/075 ,  C09B11/24 ,  G02B5/32 ,  G03F7/028 ,  G03H1/04

CPC分类号： G03F7/0755 ,  C09B11/24 ,  G02B5/32 ,  G03F7/028 ,  G03H1/0402 ,  G03H2001/0439 ,  G03H2260/12

摘要： The present disclosure relates to a photopolymer composition, and more particularly, to a compound having a novel structure, a photopolymer composition including the compound as a dye, a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.

公开(公告)号：US11851515B2

公开(公告)日：2023-12-26

申请号：US17280077

申请日：2020-06-29

申请人： LG CHEM, LTD.

发明人： Seokhoon Jang ,  Heon Kim ,  Se Hyun Kwon ,  Yeongrae Chang

IPC分类号： G03H1/02 ,  C08F2/50 ,  C08F220/20 ,  C08F283/12 ,  G03F7/032

CPC分类号： C08F283/128 ,  C08F2/50 ,  G03H1/02 ,  C08F220/20 ,  G03H2001/0216 ,  G03H2001/0264 ,  G03H2210/10 ,  G03H2260/12

摘要： The present disclosure relates to a photopolymer composition including a polymer matrix or a precursor thereof having a predetermined chemical structure; a photoreactive monomer; and a photoinitiator, a hologram recording medium, an optical element and a holographic recording method using the same.