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    SYSTEM FOR PREPARING SILICA AEROGEL
    2.
    发明申请
    SYSTEM FOR PREPARING SILICA AEROGEL 审中-公开

    公开(公告)号：US20180370809A1

    公开(公告)日：2018-12-27

    申请号：US15742865

    申请日：2017-03-07

    Applicant: LG CHEM, LTD.

    Inventor： Dong Kwon LEE ,  Ye Hon KIM ,  Jong Ku LEE ,  Je Kyun LEE

    IPC: C01B33/158 ,  B01D3/14 ,  B01D5/00

    CPC classification number: C01B33/1585 ,  B01D3/14 ,  B01D5/0045 ,  B01D5/006 ,  C02F1/52

    Abstract: The system for preparing silica aerogel comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a separating part separating at least one raw material of the raw materials from the mixture containing the silica wet gel transferred from the mixing part, a drying part drying the silica wet gel transferred from the separating part to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part.

    APPARATUS FOR PREPARING OLIGOMER
    4.
    发明申请
    APPARATUS FOR PREPARING OLIGOMER 有权

    公开(公告)号：US20220143568A1

    公开(公告)日：2022-05-12

    申请号：US17432083

    申请日：2020-11-13

    Applicant: LG CHEM, LTD.

    Inventor： Hong Min LEE ,  Jeong Seok LEE ,  Jong Hun SONG ,  Kyung Seog YOUK ,  Dong Kwon LEE ,  Moon Sub HWANG

    IPC: B01J8/38 ,  B01J8/08 ,  B01J4/00 ,  C07C2/08

    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.

    APPARATUS FOR MASS POLYMERIZATION OF VINYL CHLORIDE RESIN AND METHOD FOR MASS POLYMERIZATION OF VINYL CHLORIDE RESIN
    5.
    发明申请
    APPARATUS FOR MASS POLYMERIZATION OF VINYL CHLORIDE RESIN AND METHOD FOR MASS POLYMERIZATION OF VINYL CHLORIDE RESIN 有权
    氯乙烯树脂的大分子聚合装置和氯乙烯树脂的大分子聚合方法

    公开(公告)号：US20160038910A1

    公开(公告)日：2016-02-11

    申请号：US14773678

    申请日：2014-09-30

    Applicant: LG CHEM, LTD.

    Inventor： Dong Kwon LEE

    IPC: B01J19/24 ,  C08F114/06

    CPC classification number: B01J19/24 ,  B01J19/0066 ,  B01J19/18 ,  B01J19/1862 ,  B01J2219/00094 ,  B01J2219/00162 ,  B01J2219/24 ,  C08F2/02 ,  C08F14/06 ,  C08F114/06

    Abstract: Disclosed are an apparatus for mass polymerization of a vinyl chloride resin which may suppress generation of abnormal products (fine-particle products, oversize-particle products, lumpy products due to coagulation, etc.) and a vinyl chloride resin, which causes formation of a poor sphere, and may enhance quality and processability of a vinyl chloride resin, by addressing the problem that an average distance between resin particles is decreased as polymerization proceeds, and thus, microparticles are generated due to excessive coagulation or friction between particles, and a method of mass-polymerizing the vinyl chloride resin. The method comprises additionally inputting a monomer to a reactor in which a monomer and an initiator are contained when a ratio of the monomer converted to a polymer is 30% to 70%.

    Abstract translation: 公开了一种氯乙烯树脂的大规聚合装置，其可以抑制异常产物（细粒产物，超大颗粒产物，由于凝结产生的块状产物等）的产生）和氯乙烯树脂，这导致形成 并且可以通过解决树脂颗粒的平均距离随着聚合进行而降低的问题，从而提高氯乙烯树脂的质量和加工性，从而由于颗粒之间的过度凝结或摩擦而产生微粒， 的聚合氯乙烯树脂。 当转化成聚合物的单体的比例为30％至70％时，该方法还包括将单体输入到其中含有单体和引发剂的反应器中。

    BULK PVC COMPOSITION, BULK PVC POLYMERIZATION METHOD AND APPARATUS
    6.
    发明申请
    BULK PVC COMPOSITION, BULK PVC POLYMERIZATION METHOD AND APPARATUS 有权
    聚氯乙烯组合物，聚丙烯聚合方法和装置

    公开(公告)号：US20160017116A1

    公开(公告)日：2016-01-21

    申请号：US14774052

    申请日：2014-09-30

    Applicant: LG CHEM, LTD.

    Inventor： Dong Kwon LEE ,  Kwang Hyon KIM ,  Bo Hee PARK ,  Se Woong LEE ,  Jin Hyuck JU

    IPC: C08K5/053 ,  B01J19/24 ,  C08F114/06

    CPC classification number: C08K5/053 ,  B01J19/24 ,  B01J2219/24 ,  C08F2/01 ,  C08F2/02 ,  C08F2/44 ,  C08F14/06 ,  C08F114/06 ,  C08K5/05 ,  C08L27/06

    Abstract: Disclosed are a bulk PVC composition and a bulk PVC polymerization method using the same. According to the present invention, a bulk PVC composition that may effectively prevent generation of fine particles and scale (adhering to a reactor wall) during bulk polymerization and may be prepared without a post-treatment process of an antistatic agent added to easily isolate fine particles after bulk PVC polymerization, and a method and apparatus for polymerizing the same may be provided.

    Abstract translation: 公开了使用该组合物的散装PVC组合物和本体PVC聚合方法。 根据本发明，可以在本体聚合期间可以有效地防止细小颗粒的产生和结垢（附着在反应器壁上）的块状PVC组合物，并且可以在没有加入抗静电剂的后处理工艺的情况下制备以容易地分离细颗粒 在聚氯乙烯聚合之后，可以提供其聚合方法和装置。

    SYSTEM FOR PREPARING SILICA AEROGEL
    7.
    发明申请
    SYSTEM FOR PREPARING SILICA AEROGEL 审中-公开

    公开(公告)号：US20180237596A1

    公开(公告)日：2018-08-23

    申请号：US15755513

    申请日：2017-03-07

    Applicant: LG CHEM, LTD.

    Inventor： Ye Hon KIM ,  Dong Kwon LEE ,  Jong Ku LEE ,  Je Kyun LEE

    IPC: C08J3/12 ,  C08J3/075 ,  C01B33/158 ,  B02C19/06 ,  B02C18/18

    CPC classification number: C08J3/12 ,  B01J19/00 ,  B02C18/18 ,  B02C19/06 ,  C01B33/158 ,  C01B33/1585 ,  C08J3/075 ,  C08J2383/02 ,  C08J2383/04

    Abstract: The system for preparing silica aerogel according to the present invention comprises a raw material supply part transferring at least one raw material of de-ionized water, water glass, a surface modifier, an inorganic acid, and an organic solvent to a mixing part, the mixing part mixing the raw materials transferred from the raw material supply part to produce silica wet gel, a drying part drying the silica wet gel to produce the silica aerogel, a recovery part recovering a portion of the vaporized raw material of the raw materials used in at least one of the mixing part and the drying part, and a heat transfer part transferring heat to at least one of the mixing part and the drying part, wherein the system further comprises a pulverizing part that pulverizes the raw material from the row material supply part to the mixing part.

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