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    DIESTER-BASED MATERIAL PRODUCTION UNIT AND DIESTER-BASED MATERIAL PRODUCTION SYSTEM INCLUDING THE SAME
    2.
    发明申请
    DIESTER-BASED MATERIAL PRODUCTION UNIT AND DIESTER-BASED MATERIAL PRODUCTION SYSTEM INCLUDING THE SAME 有权

    公开(公告)号：US20220213019A1

    公开(公告)日：2022-07-07

    申请号：US17603549

    申请日：2020-07-02

    申请人： LG CHEM, LTD.

    发明人： Jae Hun JEONG ,  Sung Kyu LEE ,  Yeon Uk CHOO ,  Seok Goo LEE

    IPC分类号： C07C67/08 ,  B01J19/00 ,  B01J19/24 ,  C07C67/475 ,  C07C67/52 ,  B01D17/02 ,  B01D19/00

    摘要： The present disclosure relates to a continuous production system and a diester-material production unit included therein, wherein the production unit includes a reaction device in which an esterification reaction of dicarboxylic acid and a primary alcohol is performed, a column in which gas-liquid separation of the primary alcohol and the water introduced is performed, a heat exchange device for recovering heat of a gas phase line of the column, a condenser installed at a rear end of the heat exchange device and liquefying a mixture of a gas-phase primary alcohol and water, and a layer separator in which the layer separation of a mixture of a liquefied primary alcohol and water is performed, wherein the heat exchange device includes one or more of a first heat exchanger for performing heat exchange with a raw material feed line of the reaction device, a second heat exchanger for performing heat exchange with a line through which a low temperature stream flows in a process, and a third heat exchanger for performing heat exchange with condensed water generated in the process. According to the present disclosure, the amount of a coolant used and the volume of steam of a reactor may be reduced, and the thermal efficiency of the entire process may be improved.

    Mixture of polymerizable compound and method of producing the same
    3.
    发明授权
    Mixture of polymerizable compound and method of producing the same 有权

    公开(公告)号：US10934246B2

    公开(公告)日：2021-03-02

    申请号：US16744489

    申请日：2020-01-16

    申请人： ZEON CORPORATION

    发明人： Kei Sakamoto ,  Kumi Okuyama ,  Kanako Sanuki

    IPC分类号： C07C67/58 ,  C07C67/14 ,  C07C69/75 ,  C07D277/82 ,  G02B5/30 ,  C07C69/017 ,  C07C67/08 ,  C07C67/52 ,  G02B1/08

    摘要： Disclosed is a mixture containing compound (I) and polymerizable compound (II) wherein compound (I) accounts for 50 mol % or more of the entire mixture and 1,4-cyclohexanedicarboxylic acid accounts for less than 5 mol % of the entire mixture; a method of producing the mixture which includes reacting in a water-immiscible organic solvent 1,4-cyclohexanedicarboxylic acid dichloride with compound (IV) in the presence of a base, and washing the obtained reaction solution with a weakly acidic buffer solution; etc. The disclosure provides mixtures useful for low-cost production of polymerizable compounds which have low melting points suitable for practical use, show superior solubility to general-purpose solvents, can be produced at low costs, and allow for provision of optical films capable of uniform polarized light conversion over a wide wavelength range, and methods of producing the mixtures. where A represents hydrogen, methyl group or chlorine, and n represents an integer of 1 to 20.

    METHOD FOR THE SEPARATION OF THE ISOPRENIC CONSTITUENTS OF GUAYULE
    4.
    发明申请
    METHOD FOR THE SEPARATION OF THE ISOPRENIC CONSTITUENTS OF GUAYULE 审中-公开

    公开(公告)号：US20180171178A1

    公开(公告)日：2018-06-21

    申请号：US15579785

    申请日：2016-07-29

    申请人： versalis S.p.A.

    发明人： Cecilia QUERCI ,  Danilo DEL PRETE ,  Maria CALDARARO ,  Gianni GIROTTI

    IPC分类号： C09F1/04 ,  C08C1/04 ,  C07J53/00 ,  C07J71/00 ,  B01D9/00 ,  B01D17/02 ,  C07C29/09 ,  C07C67/03 ,  C07C67/52 ,  C07C67/56 ,  C07C67/58

    摘要： Method for the separation of at least one isoprenic constituent from the resin of a plant of guayule and/or of the guayule type comprising the steps of: a) providing a defatted resin of guayule and/or of the guayule type; b) subjecting the defatted resin to partitioning of the liquid-liquid type with solvents that are immiscible in each other thus obtaining an apolar extract containing the isoprenic constituents guayulin A, guayulin B and argentatin B; and a polar extract containing the isoprene constituents argentatin A, argentatin C and argentatin D; and c) separating at least one isoprenic constituent from said polar extract and/or from the apolar extract thus obtained, wherein step c) comprises a step in which the polar extract is subjected to partitioning of the liquid-liquid type with solvents immiscible in each other and/or a step in which the apolar extract is subjected to partitioning of the solid-liquid type.

    Ketocarboxylic acids, ketocarboxylic esters, methods of manufacture and uses thereof
    9.
    发明授权
    Ketocarboxylic acids, ketocarboxylic esters, methods of manufacture and uses thereof 有权
    酮羧酸，酮羧酸酯，其制备方法和用途

    公开(公告)号：US09221741B2

    公开(公告)日：2015-12-29

    申请号：US13934368

    申请日：2013-07-03

    申请人： SEGETIS, Inc.

    发明人： Brian D. Mullen ,  Leo E. Manzer ,  Cora M. Leibig

    IPC分类号： C07C69/66 ,  C07C69/738 ,  C07C51/09 ,  C07C51/493 ,  C07C67/08 ,  C07C67/52 ,  C07C69/716

    CPC分类号： C07C69/738 ,  C07C51/09 ,  C07C51/493 ,  C07C67/08 ,  C07C67/52 ,  C07C69/716 ,  Y02P20/582 ,  C07C59/185

    摘要： Ketocarboxylic acids such as levulinic acid can be efficiently purified in high yield by esterification with a hydrocarbon polyol to the corresponding polyketocarboxylic ester, which can be readily purified, for example recrystallized. After purification, the ketocarboxylic ester can be hydrolyzed to provide pure ketocarboxylic acid, or a salt thereof, after removal of the esterifying hydrocarbon polyol, or used for other synthetic transformations. Advantageously, the polyketocarboxylic esters, ketocarboxylic acids, and salts thereof produced by this method are obtained in high purity.

    摘要翻译： 酮羧酸如乙酰丙酸可以通过用烃多元醇与相应的聚酮羧酸酯酯化而以高收率有效地纯化，其可以容易地纯化，例如重结晶。 纯化后，在除去酯化烃多元醇之后，可以将酮羧酸酯水解以提供纯酮羧酸或其盐，或用于其它合成转化。 有利地，以高纯度获得通过该方法制备的多酮羧酸酯，酮羧酸及其盐。