Aerogel blanket for ultra-high temperature, production method thereof, and construction method thereof

    公开(公告)号:US10464816B2

    公开(公告)日:2019-11-05

    申请号:US15766318

    申请日:2017-10-10

    申请人: LG CHEM, LTD.

    摘要: The present invention relates to a hydrophilic silica aerogel blanket for ultra-high temperature insulation, a production method thereof, and a construction method thereof. More specifically, the present invention provides a production method a hydrophilic silica aerogel blanket, the method capable of strengthening the structure of a silica gel by adding a basic catalyst in an aging step, reducing processing time and cost by omitting a surface modification step, thereby reducing manufacturing cost, and suppressing the generation of a bad odor during construction by fundamentally blocking a volatile organic compound (VOC), a hydrophilic silica aerogel blanket produced thereby, and a construction method of a hydrophilic silica aerogel blanket, the method capable of suppressing the generation of a bad odor when constructing the hydrophilic aerogel blanket on an ultra-high temperature piping equipment, and at the same time, preventing the loss of heat insulation performance due to moisture in the air.

    WATER-DISPERSIBLE HALOGEN-CAPPING POLYALKYLACRYLATE, VINYL CHLORIDE-BASED BLOCK COPOLYMER AND METHOD FOR PREPARING THE SAME (As Amended)
    6.
    发明申请
    WATER-DISPERSIBLE HALOGEN-CAPPING POLYALKYLACRYLATE, VINYL CHLORIDE-BASED BLOCK COPOLYMER AND METHOD FOR PREPARING THE SAME (As Amended) 有权
    水分散的卤素聚合聚丙烯酸酯,基于氯乙烯的嵌段共聚物及其制备方法(如修改)

    公开(公告)号:US20140235762A1

    公开(公告)日:2014-08-21

    申请号:US14346259

    申请日:2013-06-03

    申请人: LG CHEM, LTD.

    IPC分类号: C08L33/08

    摘要: Disclosed are a water-dispersible halogen-capping polyalkylacrylate, a vinyl chloride-based block copolymer and a method for preparing the same. By using the water-dispersible halogen-capping polyalkylacrylate derivative as a chain transfer agent for polymerization of a vinyl chloride-based monomer, it is possible to obtain effects such as reduction of coagulation of particles and adhesion of particles to a reactor wall, improvement in reaction efficiency and polydispersity index, and prevention of yellowing.

    摘要翻译: 公开了水分散性卤素封端聚丙烯酸烷基酯,氯乙烯基嵌段共聚物及其制备方法。 通过使用水分散性卤素封端聚丙烯酸烷基酯衍生物作为聚合氯乙烯类单体的链转移剂,可以获得如颗粒凝结减少和颗粒附着在反应器壁上的效果, 反应效率和多分散指数,防黄变。

    Supercritical drying method for silica wet gel blanket

    公开(公告)号:US12060279B2

    公开(公告)日:2024-08-13

    申请号:US17253384

    申请日:2019-11-11

    申请人: LG CHEM, LTD.

    摘要: Provided is a supercritical drying method of a silica wet gel blanket and a method for producing a silica aerogel blanket including the same, the supercritical drying method preventing a salt from being accumulated inside equipment during supercritical drying. By preventing a salt from being accumulated inside equipment during supercritical drying, it is possible to improve the operational stability of the supercritical drying process. In addition, since only a line filter needs to be separated and is easily washed, the time required for washing and the total amount of ammonia wastewater generated therefrom can be reduced, thereby improving efficiency and reducing costs.

    Method and apparatus for manufacturing aerogel sheet

    公开(公告)号:US10737231B2

    公开(公告)日:2020-08-11

    申请号:US15738495

    申请日:2017-01-17

    申请人: LG CHEM, LTD.

    摘要: A method for manufacturing an aerogel sheet according to the present invention includes: a step (a) of preparing a blanket having a plate shape; a step (b) of mixing silica sol with gelling catalyst to prepare a silica sol precursor; and a step (c) of injecting the silica sol precursor prepared in the step (b) to a surface of the blanket prepared in the step (a) through an injection device to gelate the silica sol precursor, wherein, in the step (c), the injection device injects the silica sol precursor while moving from one side to the other side of the surface of the blanket.