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    PHOTOPOLYMER COMPOSITION
    5.
    发明申请
    PHOTOPOLYMER COMPOSITION 审中-公开

    公开(公告)号：US20190339612A1

    公开(公告)日：2019-11-07

    申请号：US16473992

    申请日：2018-03-14

    Applicant: LG CHEM, LTD.

    Inventor： Boo Kyung KIM ,  Heon KIM ,  Seok Hoon JANG ,  Yeong Rae CHANG

    IPC: G03F7/00 ,  C08F220/18 ,  C08F299/04 ,  G03H1/02

    Abstract: 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.

    HOLOGRAM MEDIUM
    8.
    发明申请
    HOLOGRAM MEDIUM 有权

    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.

    COMPOSITION FOR FORMING COATING LAYER HAVING SELF-HEALING PROPERTY, COATING LAYER, AND FILM
    10.
    发明申请
    COMPOSITION FOR FORMING COATING LAYER HAVING SELF-HEALING PROPERTY, COATING LAYER, AND FILM 审中-公开

    公开(公告)号：US20170306163A1

    公开(公告)日：2017-10-26

    申请号：US15510335

    申请日：2015-11-30

    Applicant: LG CHEM, LTD.

    Inventor： Heon KIM ,  Yeong Rae CHANG ,  Hye Min KIM ,  Eun Sang YOO ,  Young Suk KIM

    IPC: C09D4/06 ,  C09D5/00 ,  C08J7/04 ,  C09D7/12

    CPC classification number: C09D4/06 ,  C08J7/047 ,  C08J2367/02 ,  C08J2451/08 ,  C08J2475/14 ,  C08K3/36 ,  C09D5/00 ,  C09D7/61 ,  C09D7/67

    Abstract: The present invention relates to a composition for forming a coating layer having a self-healing property which enables the provision of a film exhibiting further improved mechanical properties together with excellent self-healing properties by being applied to the exterior of various household appliances or display devices, etc., a coating layer and a film. The composition for forming a coating layer having a self-healing property comprises: a poly(C2-4 alkylene glycol)-modified polyfunctional urethane (meth)acrylate-based binder; a bifunctional or higher polyfunctional (meth)acrylate-based compound; a UV initiator; and a silica nanoparticle, wherein the binder has a trifunctional or higher urethane bond and each poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compound is bound to the urethane bond in the binder, and at least two poly(C2-4 alkylene glycol)-modified (meth)acrylate-based compounds bound to each urethane bond include poly(C2-4 alkylene glycol) repeating units whose numbers of repetitions are different from each other.

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