METHOD FOR DECOMPOSING BYPRODUCTS IN PHENOL PRODUCTION PROCESS

    公开(公告)号:US20210130256A1

    公开(公告)日:2021-05-06

    申请号:US16478802

    申请日:2018-08-17

    Applicant: LG CHEM, LTD.

    Abstract: In a process of decomposing byproducts of a phenol production process using a reactive distillation column in which a reactor and a distillation column are integrated, since acetophenone is mixed with tar recovered to a lower part of the reactive distillation column and transferred, viscosity of the tar may be lowered so that the tar may be transferred at room temperature, and since the reactive distillation column may be operated at 0.5 to 3 bar, an operating temperature of the reactive distillation column is low as compared with a method of separating acetophenone by pressurization with high pressure, significantly reducing an operation cost of a heater required for a reaction. Also, since acetophenone is separately recovered at a position of 25 to 90% of a total number of stages in the reactive distillation column, recovery of an active ingredient may be enhanced.

    HIGH-GLOSS POLYMETHYLMETHACRYLATE ACRYLIC COPOLYMER ALLOY COMPOSITION AND MOLDED ARTICLE
    3.
    发明申请
    HIGH-GLOSS POLYMETHYLMETHACRYLATE ACRYLIC COPOLYMER ALLOY COMPOSITION AND MOLDED ARTICLE 有权
    高分子量聚乙烯基甲基丙烯酸酯丙烯酸共聚物合金和成型品

    公开(公告)号:US20160340505A1

    公开(公告)日:2016-11-24

    申请号:US15035185

    申请日:2015-11-19

    Applicant: LG CHEM, LTD.

    Abstract: The present invention relates to a high-gloss polymethylmethacrylate-acrylic copolymer alloy composition and a molded article. According to the present invention, provided are a high-gloss polymethylmethacrylate-acrylic copolymer alloy composition which provides improved surface gloss and transparency (color) while providing mechanical strength, workability, and scratch resistance required in the high-gloss polymethylmethacrylate-acrylic copolymer alloy composition by combining a specific amount of an acrylic impact modifier, as an impact modifier of an alloy of a polymethylmethacrylate resin and an acrylic copolymer, with a scratch modifier and are economically efficient by omitting a process after injection (painting process), and a molded article obtained from the same.

    Abstract translation: 本发明涉及高光聚甲基丙烯酸甲酯 - 丙烯酸共聚物合金组合物和模制品。 根据本发明,提供了一种高光泽聚甲基丙烯酸甲酯 - 丙烯酸共聚物合金组合物,其提供改善的表面光泽和透明度(颜色),同时提供高光泽聚甲基丙烯酸甲酯 - 丙烯酸共聚物合金组合物中所需的机械强度,加工性和耐划伤性 通过将特定量的丙烯酸类抗冲改性剂作为聚甲基丙烯酸甲酯树脂和丙烯酸类共聚物的合金的抗冲击改性剂与刮擦改性剂组合,并且通过省略注射(涂漆工艺)后的工艺和经济地有效 从同一个获得。

    FLAME RETARDANT THERMOPLASTIC RESIN COMPOSITION AND ELECTRIC WIRE COMPRISING THE SAME
    4.
    发明申请
    FLAME RETARDANT THERMOPLASTIC RESIN COMPOSITION AND ELECTRIC WIRE COMPRISING THE SAME 有权
    阻燃热塑性树脂组合物和包含其的电线

    公开(公告)号:US20160251514A1

    公开(公告)日:2016-09-01

    申请号:US14769419

    申请日:2015-02-25

    Applicant: LG Chem, Ltd.

    Abstract: Disclosed are a flame retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering flame retardancy of the resin composition, and an electric wire comprising the same. The flame retardant thermoplastic resin composition comprises a matrix resin that comprises 20% to 40% by weight of a poly arylene ether resin, 20% to 40% by weight of a vinyl aromatic resin and 5% to 17% by weight of a polypropylene resin comprising a rubber ingredient, and 10% to 30% by weight of a flame retardant, based on a total weight of the resin composition.

    Abstract translation: 公开了适用于通过提高树脂组合物的挤出性而不妨碍树脂组合物的阻燃性而制备电线等的阻燃热塑性树脂组合物,以及包含其的电线。 阻燃性热塑性树脂组合物包含基质树脂,其包含20重量%至40重量%的聚亚芳基醚树脂,20重量%至40重量%的乙烯基芳族树脂和5重量%至17重量%的聚丙烯树脂 包括橡胶成分和10重量%至30重量%的阻燃剂,基于树脂组合物的总重量。

    FIRE RETARDANT THERMOPLASTIC RESIN COMPOSITION AND ELECTRIC WIRE COMPRISING THE SAME (As Amended)
    5.
    发明申请
    FIRE RETARDANT THERMOPLASTIC RESIN COMPOSITION AND ELECTRIC WIRE COMPRISING THE SAME (As Amended) 有权
    阻燃热塑性树脂组合物和包含其的电线(如修改)

    公开(公告)号:US20160024303A1

    公开(公告)日:2016-01-28

    申请号:US14774945

    申请日:2015-02-27

    Applicant: LG CHEM, LTD.

    Abstract: Disclosed are a fire retardant thermoplastic resin composition suitable for preparing an electric wire, etc. by enhancing extrudability of a resin composition without hindering fire retardancy of the resin composition, and an electric wire comprising the same. The fire retardant thermoplastic resin composition comprises a matrix resin that comprises 20 to 35% by weight of a poly arylene ether resin, 20 to 35% by weight of a vinyl aromatic resin and 5 to 20% by weight of an olefin-based resin comprising a rubber ingredient, 1 to 10% by weight of a room-temperature liquid-type fire retardant, and 8 to 20% by weight of an ancillary fire retardant, based on 100% by weight of a mixture of a poly arylene ether resin, a vinyl aromatic resin, an olefin-based resin, a room-temperature liquid-type fire retardant and an ancillary fire retardant.

    Abstract translation: 公开了适用于通过提高树脂组合物的挤出性而不妨碍树脂组合物的阻燃性而制备电线等的阻燃热塑性树脂组合物,以及包含该阻燃性热塑性树脂组合物的电线。 阻燃热塑性树脂组合物包含基质树脂,其包含20至35重量%的聚亚芳基醚树脂,20至35重量%的乙烯基芳族树脂和5至20重量%的烯烃基树脂,其包含 基于100重量%的聚亚芳基醚树脂的混合物,橡胶成分,1〜10重量%的室温液体型阻燃剂和8〜20重量%的辅助阻燃剂, 乙烯基芳族树脂,烯烃类树脂,室温液态阻燃剂和辅助阻燃剂。

    METHOD OF PREPARING METHYL TERT-BUTYL ETHER
    6.
    发明申请

    公开(公告)号:US20190315671A1

    公开(公告)日:2019-10-17

    申请号:US16073294

    申请日:2018-01-04

    Applicant: LG CHEM, LTD.

    Abstract: The present invention relates to a method of preparing methyl tert-butyl ether including a reaction step of reacting methanol with iso-butene in the presence of an acid catalyst to generate methyl tert-butyl ether; and a purification step of purify the reaction product obtained by the reaction step by introducing the reaction product into a reaction distillation column including a packing stage containing an acid catalyst, wherein a flow ratio of a recycle to a fresh feed is different per the volume of each reactor. Accordingly, the amount of unreacted iso-butene and the amount of impurities included in the reactor may be reduced, resulting in reduction of the amount of thermal energy used in a reaction distillation column.

    SYSTEM FOR PRODUCING PHENOL AND BISPHENOL A INCLUDING REMOVAL UNIT FOR REMOVING METHANOL AND ACETONE

    公开(公告)号:US20190225567A1

    公开(公告)日:2019-07-25

    申请号:US16329087

    申请日:2017-11-28

    Applicant: LG CHEM, LTD.

    Abstract: A system for producing phenol and bisphenol A comprising: a first production unit for producing phenol comprising a decomposition reaction unit and a purification unit; a second production unit for producing bisphenol A comprising a reaction unit and a concentration unit; and a removal unit for removing methanol and acetone during the production of phenol and bisphenol A. The removal unit includes a removal column comprising an overhead purge part, a bottom recirculation part and a supply part. The supply part comprises a purification unit discharge part to supply methanol, acetone, and water discharged from the purification unit to the removal column and a concentration unit discharge part to supply phenol, acetone, and water discharged from the concentration unit to the removal column, and is provided to the midsection of the removal column.

    MEMBRANE SEPARATION DEVICE (As Amended)
    10.
    发明申请
    MEMBRANE SEPARATION DEVICE (As Amended) 审中-公开
    膜分离装置(经修改)

    公开(公告)号:US20150321140A1

    公开(公告)日:2015-11-12

    申请号:US14652689

    申请日:2014-02-19

    Applicant: LG CHEM, LTD.

    Abstract: The present application relates to a membrane separation device. According to the separation device of the present application, components to be separated using a separation membrane having a small area size can be separated with high selectivity and consequently processing efficiency and economical efficiency can be superbly improved; and according to a method for producing an expanded polystyrene which includes the membrane separation device, components to be separated using a separation membrane having a small area size, in particular, a volatile organic compound (VOC), can be separated with high selectivity and consequently processing efficiency and economical efficiency can be superbly improved, and also, by separating and recovering VOC, an effect in preventing environmental pollution caused by global warming is exhibited.

    Abstract translation: 本申请涉及膜分离装置。 根据本申请的分离装置,可以高选择性地分离具有小面积尺寸的分离膜分离的成分,从而可以显着提高加工效率,经济效益。 并且根据包括膜分离装置的发泡聚苯乙烯的制造方法,可以高选择性地分离使用面积小的分离膜(特别是挥发性有机化合物(VOC))分离的成分,因此, 加工效率和经济效益可以得到极大的提高,并且通过分离和回收挥发性有机化合物,可以发挥防止全球变暖引起的环境污染的作用。

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