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    Diamine compound and method for producing same
    1.
    发明授权
    Diamine compound and method for producing same 有权

    公开(公告)号：US11319282B2

    公开(公告)日：2022-05-03

    申请号：US16316536

    申请日：2017-08-11

    Applicant: LG CHEM, LTD.

    Inventor： Cheolmin Yun ,  Jun Sik Suh ,  Kyungjun Kim

    IPC: C07C237/40 ,  C07C231/02 ,  C08G73/10 ,  C08G73/14 ,  G02B1/04 ,  C07C231/12 ,  G02B1/10

    Abstract: The present invention provides a novel diamine compound capable of producing a polymer which exhibits greatly enhanced mechanical properties and heat resistance while maintaining transparency. A film including a polymer produced using the diamine compound has excellent transparency, heat resistance, mechanical strength and flexibility, and thus can be used in various fields, such as in a device substrate, a display cover substrate, an optical film, an Integrated circuit (IC) package, an adhesive film, a multi-layer flexible printed circuit (FPC), a tape, a touch panel and an optical disc protection film, and the like.

    Polyimide copolymer and polyimide film using same
    3.
    发明授权
    Polyimide copolymer and polyimide film using same 有权

    公开(公告)号：US11549013B2

    公开(公告)日：2023-01-10

    申请号：US16482885

    申请日：2018-07-17

    Applicant: LG CHEM, LTD.

    Inventor： Cheolmin Yun ,  Kyungjun Kim

    IPC: C08L79/08 ,  C08G73/10 ,  C08G77/26 ,  C08G77/00 ,  C08K5/20 ,  C08K5/3415

    Abstract: A polyimide copolymer according to the present invention has a particular structure in which siloxane structures are distributed in a nanosize in a polymer and thus enables excellent transparency, heat resistance, mechanical strength and flexibility and effective reduction of residual stress, and thus can be used in various fields such as a substrate for a device, a cover substrate for a display, an optical film, an integrated circuit (IC) package, an adhesive film, a multi-layer flexible printed circuit (FPC), tape, a touch panel and a protective film for an optical disk.

    Polyimide film forming composition and polyimide film produced by using same
    4.
    发明授权
    Polyimide film forming composition and polyimide film produced by using same 有权

    公开(公告)号：US11261304B2

    公开(公告)日：2022-03-01

    申请号：US16345523

    申请日：2017-10-27

    Applicant: LG CHEM, LTD.

    Inventor： Bo Ra Shin ,  Cheolmin Yun ,  Hye Won Jeong ,  Kyungjun Kim

    IPC: C08G73/10 ,  C08J5/18 ,  C08K5/5465 ,  C08G73/14 ,  C08L79/08

    Abstract: The present invention provides a polyimide film forming composition which comprises a polyamic acid or a polyimide in an oligomer form or in a low-molecular weight form, the polyamic acid or the polyimide being prepared from a diamine containing an intramolecular imide group, and thus can provide a polyimide film having improved heat resistance while retaining optical properties thereof. In addition, the polyimide film according to the present invention can reduce not only a laser energy density (E/D) required in the laser exfoliation process but also remarkably decrease an amount of ash generated by an exfoliation process, thereby further improving the reliability of a device in a display manufacturing process.

    Modified polyimide and curable resin composition
    6.
    发明授权
    Modified polyimide and curable resin composition 有权

    公开(公告)号：US10556979B2

    公开(公告)日：2020-02-11

    申请号：US16391879

    申请日：2019-04-23

    Applicant: LG CHEM, LTD.

    Inventor： Cheolmin Yun ,  Kyungjun Kim

    IPC: C08F290/06 ,  C08G73/10 ,  C09D179/08 ,  C08J5/18 ,  C09D151/08 ,  C09D7/20

    Abstract: A modified polyimide represented by Formula 4: wherein D is a heat curable or photocurable functional group, R is a divalent or higher polyvalent organic group, and n is an integer of 1 or greater, X1, X2, X3, and X4 are each independently a tetravalent organic group derived from a tetracarboxylic dianhydride, Y1, Y2, and Y3 are each independently a divalent organic group derived from a diamine, p, q, r, and v are each independently an integer of 0 or greater, with the proviso that p, q, r, and v are not simultaneously 0, and r+v is 1 or greater. Additionally, curable resin compositions including the modified polyimide, as well as polyimide films including a cured product of the curable resin composition, and methods for preparing the modified polyimide.

    LAMINATE AND THIN-FILM SOLAR CELL COMPRISING SAME
    8.
    发明申请
    LAMINATE AND THIN-FILM SOLAR CELL COMPRISING SAME 审中-公开
    层压和薄膜太阳能电池包括它们

    公开(公告)号：US20160071989A1

    公开(公告)日：2016-03-10

    申请号：US14441703

    申请日：2014-06-19

    Applicant: LG CHEM, LTD.

    Inventor： Hee Han ,  Kyungjun Kim

    IPC: H01L31/0392 ,  H01L31/0224

    CPC classification number: H01L31/03926 ,  H01L31/03928 ,  Y02E10/541

    Abstract: The present invention relates to a laminate including an alkali metal-doped layer. The laminate is processable at high temperatures of at least 550° C. and has excellent durability and barrier properties. Due to these advantages, the laminate can be used to fabricate a thin film solar cell with high flexibility and improved energy conversion efficiency. The present invention also relates to a thin film solar cell including the laminate.

    Abstract translation: 本发明涉及包含碱金属掺杂层的层压体。 该层压板在至少550℃的高温下是可加工的，具有优异的耐久性和阻隔性。 由于这些优点，层压板可用于制造具有高柔性和改善的能量转换效率的薄膜太阳能电池。 本发明还涉及包括层压体的薄膜太阳能电池。

    METHOD FOR FORMING METAL PARTICLE LAYER AND LIGHT EMITTING DEVICE FABRICATED USING METAL PARTICLE LAYER FORMED BY THE METHOD
    9.
    发明申请
    METHOD FOR FORMING METAL PARTICLE LAYER AND LIGHT EMITTING DEVICE FABRICATED USING METAL PARTICLE LAYER FORMED BY THE METHOD 审中-公开
    使用金属颗粒层形成金属颗粒层和发光装置的方法

    公开(公告)号：US20150249195A1

    公开(公告)日：2015-09-03

    申请号：US14405113

    申请日：2013-07-22

    Applicant: LG CHEM, LTD.

    Inventor： Hee Han ,  Kyungjun Kim

    IPC: H01L33/58 ,  C23C18/16 ,  C23C18/48 ,  C23C18/38 ,  C23C18/42 ,  H01L33/00 ,  C23C18/31

    CPC classification number: C23C18/48 ,  C23C18/165 ,  C23C18/44 ,  C23C18/54 ,  H01L33/38 ,  H01L33/405 ,  H01L2933/0016 ,  H01L2933/0091

    Abstract: Disclosed is a method for forming a metal particle layer having irregular structures in a simpler manner. The method includes bringing a base into contact with an activation solution including a metal compound, an organic acid activator, and a complexing agent. The base is oxidized by the organic acid activator to produce electrons and the metal compound is reduced by the electrons to deposit metal particles on the surface of the base. Also disclosed is a method for fabricating a light emitting device with improved light extraction efficiency that uses a metal particle layer formed by the above method.

    Abstract translation: 公开了以更简单的方式形成具有不规则结构的金属颗粒层的方法。 该方法包括使碱与包含金属化合物，有机酸活化剂和络合剂的活化溶液接触。 碱被有机酸活化剂氧化以产生电子，金属化合物被电子还原，以将金属颗粒沉积在基体的表面上。 还公开了一种制造使用通过上述方法形成的金属颗粒层的光提取效率提高的发光器件的方法。

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