公开(公告)号：US20210003919A1

公开(公告)日：2021-01-07

申请号：US16976206

申请日：2019-04-29

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

Inventor： Heon KIM ,  Yoosik KIM ,  Raisa KHARBASH ,  Se Hyun KWON ,  Yeongrae CHANG ,  Seokhoon JANG

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

Abstract: 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：US20210026239A1

公开(公告)日：2021-01-28

申请号：US16968084

申请日：2019-12-13

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

Inventor： Heon KIM ,  Yoosik KIM ,  Raisa KHARBASH ,  Se Hyun KWON ,  Yeongrae CHANG ,  Seokhoon JANG

IPC: G03F7/00 ,  G03F7/075 ,  G03F7/031 ,  G03F7/105 ,  C08F220/18 ,  C08J3/24 ,  G03H1/02

Abstract: 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：US20200263038A1

公开(公告)日：2020-08-20

申请号：US16651906

申请日：2018-12-07

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

Inventor： Heon KIM ,  Yoosik KIM ,  Raisa KHARBASH ,  Se Hyun KWON ,  Yeongrae CHANG ,  Seokhoon JANG

IPC: C09B57/00 ,  G03F7/028 ,  G03F7/035 ,  G03F7/033 ,  G03H1/02 ,  G03H1/04

Abstract: 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：US20200255623A1

公开(公告)日：2020-08-13

申请号：US16756072

申请日：2018-10-16

Applicant: LG CHEM, LTD.

Inventor： Seok Hoon JANG ,  Heon KIM ,  Boo Kyung KIM ,  Yeong Rae CHANG ,  Yongjoon HEO ,  Se Hyun KWON

IPC: C08K5/02 ,  C08G18/79 ,  C08G18/78 ,  C08G18/32 ,  G11B7/245 ,  G11B7/0065 ,  C08G18/08

Abstract: 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：US20210239894A1

公开(公告)日：2021-08-05

申请号：US16972547

申请日：2019-09-11

Applicant: LG CHEM, LTD.

Inventor： Seokhoon JANG ,  Jinseok BYUN ,  Heon KIM ,  Se Hyun KWON ,  Yeongrae CHANG

IPC: G02B5/32 ,  C08L33/10 ,  G03F7/075

Abstract: 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：US20200150528A1

公开(公告)日：2020-05-14

申请号：US16607588

申请日：2018-12-07

Applicant: LG CHEM, LTD.

Inventor： Seokhoon JANG ,  Hyunsup LEE ,  Heon KIM ,  Se Hyun KWON ,  Yeongrae CHANG

IPC: G03F7/00 ,  C08L51/08 ,  C08L75/04 ,  C08L83/12

Abstract: The present disclosure relates to a hologram recording medium having a main relaxation temperature (Tr) of 0° C. or less, wherein the Tr is a point where a rate of change of phase angle with respect to temperature is the largest in a range of −80° C. to 30° C. in dynamic mechanical analysis. The present disclosure also relates to an optical element including the same and a holographic recording method using the hologram recording medium.

公开(公告)号：US20240216890A1

公开(公告)日：2024-07-04

申请号：US18292319

申请日：2022-08-09

Applicant: LG CHEM, LTD.

Inventor： Kyo Sung PARK ,  Min Ki CHOI ,  Tae Hee LEE ,  Se Hyun KWON ,  Do Young PARK ,  Chang Hoon SHIN

IPC: B01J20/22 ,  B01D53/02 ,  B01J20/20 ,  B01J20/28

CPC classification number: B01J20/226 ,  B01D53/02 ,  B01J20/205 ,  B01J20/28061 ,  B01J20/28064 ,  B01J20/2808 ,  B01J20/28083 ,  B01D2253/204 ,  B01D2253/306 ,  B01D2253/308 ,  B01D2257/708

Abstract: An organic compound adsorbent and a gas blowing apparatus comprising same, wherein the organic compound adsorbent has a BET specific surface area of 500 m2/g or more, and the relationship between an average diameter of unit pore inlets and an average diameter inside unit pores of the metal organic framework satisfies Equation 1:







0.4
≤


x
⁡
(
nm
)

/

y
⁡
(
nm
)


≤
1.




[

Equation
⁢

1

]







wherein: x is an average diameter of a unit pore inlet of the metal organic framework; and y is an average diameter inside a unit pore of the metal organic framework, and thus even in a dynamic gas flow having a flow rate of 1 cm/sec or more, the adsorption amount and the adsorption rate of volatile organic compounds can be improved, and therefore volatile organic compounds can be efficiently adsorbed in environments having a gas flow, such as an air purifier and an air conditioner.

公开(公告)号：US20210340302A1

公开(公告)日：2021-11-04

申请号：US17280077

申请日：2020-06-29

Applicant: LG CHEM, LTD.

Inventor： Seokhoon JANG ,  Heon KIM ,  Se Hyun KWON ,  Yeongrae CHANG

IPC: C08F283/12 ,  C08F2/50 ,  G03H1/02

Abstract: 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.

公开(公告)号：US20190317404A1

公开(公告)日：2019-10-17

申请号：US16343153

申请日：2018-09-11

Applicant: LG CHEM, LTD.

Inventor： Seok Hoon JANG ,  Heon KIM ,  Yongjoon HEO ,  Se Hyun KWON ,  Yeong Rae CHANG

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

Abstract: 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.