公开(公告)号：US11262481B2

公开(公告)日：2022-03-01

申请号：US16815227

申请日：2020-03-11

申请人： LG CHEM, LTD.

发明人： Jin Seok Byun ,  Jeong Kyu Lee ,  Boo Kyung Kim ,  Seok Hoon Jang ,  Yeong Rae Chang

IPC分类号： G02B1/11 ,  B32B7/02 ,  B32B27/08 ,  B32B27/18 ,  C09D5/00 ,  C08L33/10 ,  G02B1/113 ,  G02B5/18 ,  C08C19/40 ,  C09D4/06 ,  C08L83/04 ,  G01N23/207 ,  C09D5/33 ,  B32B7/023 ,  G02B1/14 ,  C09D7/40 ,  B05D3/02 ,  B05D3/06 ,  C09D135/02 ,  G02B1/115 ,  C08J7/04 ,  C09D4/00 ,  C08L27/12 ,  G02B1/12 ,  C08K7/18 ,  C09D7/61 ,  C08K3/01 ,  B05D1/28 ,  C08K3/36 ,  C08K7/26

摘要： The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm−1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.

公开(公告)号：US11548992B2

公开(公告)日：2023-01-10

申请号：US17205735

申请日：2021-03-18

申请人： LG CHEM, LTD.

发明人： Boo Kyung Kim ,  Yeong Rae Chang ,  Seok Hoon Jang ,  Jin Seok Byun

IPC分类号： C08J7/048 ,  B32B27/08 ,  C09D7/65 ,  B32B27/36 ,  C09D5/00 ,  C08K3/36 ,  C09D4/00 ,  C09D7/63 ,  C08K7/26 ,  C08J7/043 ,  C08J7/044 ,  C08J7/046 ,  C08J7/04 ,  G02B1/111

摘要： The present invention relates to an antireflection film. The antireflection film includes a low refractive index layer having excellent alkali resistance and exhibiting remarkably improved mechanical properties such as scratch resistance and impact resistance as well as reduction of a glare phenomenon, and a base film exhibiting excellent mechanical strength and water resistance in spite of a thin thickness and having no fear of interference fringes occurring. Therefore, such antireflection film can be used as a protective film of a polarizing plate or used as any other component so as to provide a thin display device, and furthermore, can effectively prevent the glare phenomenon of the display device, and can more improve the durability and lifespan thereof.

公开(公告)号：US11079678B2

公开(公告)日：2021-08-03

申请号：US16343153

申请日：2018-09-11

申请人： LG CHEM, LTD.

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

IPC分类号： G03H1/02 ,  G03F7/004 ,  G03F7/033 ,  C08K5/541 ,  C08F2/50 ,  C08L33/06 ,  C08L43/04 ,  G03F7/075 ,  G03F7/00

摘要： A photopolymer composition comprising a polymer matrix or a precursor thereof including a reaction product between (i) a (meth)acrylate-based (co)polymer in which a silane-based functional group is located in a branched chain and an equivalent weight of the silane-based functional group is 300 g/eq to 2000 g/eq, and (ii) a linear silane crosslinking agent; a photoreactive monomer; and a photoinitiator, a hologram recording medium using the same, an optical element using the hologram recording medium, and a holographic recording method. The photopolymer composition can more easily provide a photopolymer layer having improved durability against temperature and humidity while having a large refractive index modulation value.

公开(公告)号：US10725210B2

公开(公告)日：2020-07-28

申请号：US16067857

申请日：2017-03-03

申请人： LG CHEM, LTD.

发明人： Boo Kyung Kim ,  Jin Seok Byun ,  In Young Song ,  Yeong Rae Chang ,  Seok Hoon Jang

IPC分类号： G02B1/10 ,  G02B1/115 ,  C09D5/00 ,  C08L33/08 ,  C09D7/40 ,  C09D7/61 ,  C09D133/08 ,  C08J7/04 ,  C08J3/24 ,  C08J5/18 ,  G02B1/14 ,  C08K7/24 ,  C08K3/36 ,  C08G77/04

摘要： An antireflection film including a low reflective index layer and a hard coating layer, the low reflective index layer including: a binder resin including a crosslinked polymer of a photopolymerizable compound and polysilsesquioxane having at least one reactive functional group substituted thereon; and inorganic fine particles dispersed in the binder resin, wherein a ratio of internal haze (Hi) to total haze (Ha) is 97% or less and a variation in color coordinate value (b*) before and after alkaline treatment is 0.7 or less.

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：US11680172B2

公开(公告)日：2023-06-20

申请号：US15762383

申请日：2017-02-14

申请人： LG CHEM, LTD.

发明人： Jin Seok Byun ,  Jae Young Kim ,  Boo Kyung Kim ,  Seok Hoon Jang ,  Yeong Rae Chang

IPC分类号： C09D5/00 ,  C09D4/00 ,  C09D7/40 ,  C09D7/62 ,  C08J7/04 ,  G02B1/111 ,  G02B1/14 ,  G03F7/004 ,  G03F7/027 ,  G03F7/038 ,  G03F7/075 ,  C08J7/043 ,  C08J7/044 ,  C08J7/046 ,  C08K9/00 ,  G03F7/09 ,  C08K3/36

CPC分类号： C09D5/006 ,  C08J7/042 ,  C08J7/043 ,  C08J7/044 ,  C08J7/046 ,  C09D4/00 ,  C09D7/62 ,  C09D7/67 ,  G02B1/111 ,  G02B1/14 ,  G03F7/0047 ,  G03F7/027 ,  G03F7/038 ,  G03F7/0755 ,  C08J2301/12 ,  C08J2483/07 ,  C08K3/36 ,  C08K9/00 ,  G03F7/091 ,  C09D4/00 ,  C08F230/085

摘要： The present invention relates to a photocurable coating composition for forming a low refractive layer, a method for preparing an antireflection film using the photocurable coating composition, and an anti-reflective film prepared by using the photocurable coating composition. According to the present invention, a low refractive layer is formed of a photocurable coating composition containing two or more types of photo-polymerizable compounds, a photoinitiator, surface-treated hollow inorganic nanoparticles, and surface-treated solid inorganic nanoparticles.

公开(公告)号：US11126081B2

公开(公告)日：2021-09-21

申请号：US16473992

申请日：2018-03-14

申请人： LG CHEM, LTD.

发明人： Boo Kyung Kim ,  Heon Kim ,  Seok Hoon Jang ,  Yeong Rae Chang

IPC分类号： G03H1/02 ,  G03F7/004 ,  C08F220/18 ,  C08F299/04 ,  C08G18/40 ,  C08G18/62 ,  G03F7/00 ,  C08G18/72

摘要： The present disclosure relates to a photopolymer composition including: a polymer matrix or a precursor thereof; a photoreactive monomer including a polyfunctional (meth)acrylate monomer having a refractive index of 1.5 or less and a viscosity at 25° C. of 100 cps or less, and a monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more; and a photoinitiator, wherein a content of the monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more in the photoreactive monomer is 60 wt % or more. The present disclosure also relates to 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：US11117981B2

公开(公告)日：2021-09-14

申请号：US16326150

申请日：2018-07-02

申请人： LG CHEM, LTD.

发明人： Heon Kim ,  Boo Kyung Kim ,  Seok Hoon Jang ,  Yeong Rae Chang

IPC分类号： C08F2/50 ,  C08G83/00 ,  G06K19/16 ,  G02B5/32 ,  C08F283/02 ,  C08F220/18 ,  C08F283/00 ,  C08G18/64 ,  C08G18/32 ,  C08G18/72 ,  C08G18/71 ,  C08G18/42 ,  C08F2/48 ,  C09D4/06 ,  C08F222/10

摘要： The present invention relates to a photopolymer composition comprising: a polymer matrix or a precursor thereof including a reaction product of a polyol including a polyrotaxane compound and a compound containing at least one isocyanate group; a photoreactive monomer; and a photoinitiator. The present invention also relates to a hologram recording medium produced from the photopolymer composition, an optical element comprising the hologram recording medium, and a holographic recording method using the photopolymer composition.

公开(公告)号：US10802178B2

公开(公告)日：2020-10-13

申请号：US16239376

申请日：2019-01-03

申请人： LG CHEM, LTD.

发明人： In Young Song ,  Jin Seok Byun ,  Boo Kyung Kim ,  Seok Hoon Jang ,  Yeong Rae Chang ,  Sung Joon Oh

IPC分类号： G02B1/11 ,  B32B7/02 ,  B32B27/08 ,  B32B27/18 ,  C09D5/00 ,  C08L33/10 ,  G02B1/113 ,  G02B5/18 ,  C08C19/40 ,  C09D4/06 ,  C08L83/04 ,  G01N23/207 ,  C09D5/33 ,  B32B7/023 ,  G02B1/14 ,  C09D7/40 ,  B05D3/02 ,  B05D3/06 ,  C09D135/02 ,  G02B1/115 ,  C08J7/04 ,  C09D4/00 ,  C08L27/12 ,  G02B1/12 ,  C08K7/18 ,  C09D7/61 ,  C08K3/01 ,  B05D1/28 ,  C08K3/36 ,  C08K7/26

摘要： Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.

公开(公告)号：US10222510B2

公开(公告)日：2019-03-05

申请号：US15554966

申请日：2017-03-09

申请人： LG CHEM, LTD.

发明人： In Young Song ,  Jin Seok Byun ,  Boo Kyung Kim ,  Seok Hoon Jang ,  Yeong Rae Chang ,  Sung Joon Oh

IPC分类号： G02B1/115 ,  C09D5/00 ,  C09D7/40 ,  C09D135/02 ,  B05D3/02 ,  B05D3/06 ,  G02B1/14 ,  G02B1/11 ,  B32B7/02 ,  B32B27/08 ,  B32B27/18 ,  C08L33/10 ,  G02B1/113 ,  G02B5/18 ,  C08C19/40 ,  C09D4/06 ,  C08L83/04 ,  G01N23/207 ,  C08J7/04 ,  C09D4/00 ,  C09D5/33 ,  B05D1/28 ,  C08K3/36 ,  C08K7/26 ,  C08K7/18 ,  C09D7/61 ,  C08K3/01

摘要： Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.