PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    2.
    发明申请

    公开(公告)号:US20200123423A1

    公开(公告)日:2020-04-23

    申请号:US15781610

    申请日:2016-12-07

    Applicant: LG Chem, Ltd.

    Abstract: The present application relates to a pressure-sensitive adhesive composition, a protective film, an optical element and a display device. The pressure-sensitive adhesive composition of the present application has excellent storage stability, exhibits an appropriate low-speed and high-speed peel forces after the cross-linked structure is formed, and has excellent balance of both. Furthermore, the pressure-sensitive adhesive formed by the pressure-sensitive adhesive composition does not leave contaminants in the adherend after peeling, while exhibiting re-detachability. Accordingly, when the pressure-sensitive adhesive composition is applied to, for example, a protective film, it is also advantageous in terms of high-speed processes by being easily peeled off upon high-speed peeling as well as it exhibits an excellent protective effect, thereby being capable of exhibiting excellent antistatic characteristics.

    ELECTRODE PROTECTIVE LAYER POLYMER AND SECONDARY BATTERY TO WHICH SAME IS APPLIED

    公开(公告)号:US20210087317A1

    公开(公告)日:2021-03-25

    申请号:US16954016

    申请日:2019-05-08

    Applicant: LG CHEM, LTD.

    Abstract: A polymer for an electrode protective layer including a polymer (A) including a fluorine-based polymer in which a monomer unit including poly(alkylene oxide) and a monomer unit including a curable functional group (e.g., a thermocurable functional group or a photocurable functional group) are grafted on the fluorine-based polymer, and when preparing an electrode by coating an electrode active material layer using the polymer and curing (e.g., thermally curing or photocuring) the result, excellent lithium ion conductivity is obtained since lithium ion flow is not inhibited, chemical resistance for an electrolyte liquid is high, and voltage stability of a secondary battery may be enhanced by suppressing side reactions with the electrolyte liquid occurring on an electrode active material surface due to properties of a uniform and flexible protective layer.

    BINDER FOR LITHIUM-SULFUR SECONDARY BATTERY AND LITHIUM-SULFUR SECONDARY BATTERY INCLUDING SAME

    公开(公告)号:US20210083292A1

    公开(公告)日:2021-03-18

    申请号:US16954387

    申请日:2019-04-11

    Applicant: LG CHEM, LTD.

    Abstract: A binder for a lithium-sulfur secondary battery and a lithium-sulfur secondary battery including the same. The binder includes a copolymer having a first polymerization unit derived from a first monomer and a second polymerization unit derived from a second monomer. The first monomer is alkyl acrylate having at least one functional group or alkyl methacrylate having at least one functional group. The second monomer is acrylic acid or methacrylic acid. The at least one functional group in the first monomer is a functional group having a single or repeated structure of a hydroxy group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms, a thiol group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms, or an amino group substituted or unsubstituted with alkyl having 1 to 4 carbon atoms. The second polymerization unit may have a lithiated form.

    PREPARATION METHOD OF POLYMER
    9.
    发明申请

    公开(公告)号:US20210284790A1

    公开(公告)日:2021-09-16

    申请号:US16807653

    申请日:2020-03-03

    Abstract: The present application can provide a preparation method capable of preparing a desired polymer or conductive polymer film with excellent polymerization efficiency and conversion rates without consumption or modulation in the polymerization process, and a polymer and a conductive polymer film formed by the method. The present application can provide a method for preparing a polymer or a conductive polymer film having a desired level of transparency and conductivity, wherein desired physical properties such as solubility in a solvent or resistance to a solvent are effectively imparted thereto as necessary, and a polymer and a conductive polymer film formed by the method.

Patent Agency Ranking