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    METHOD FOR PRODUCING BISPHENOL A AND METHOD FOR PRODUCING POLYCARBONATE RESIN
    1.
    发明公开
    METHOD FOR PRODUCING BISPHENOL A AND METHOD FOR PRODUCING POLYCARBONATE RESIN 审中-公开

    公开(公告)号：US20230340196A1

    公开(公告)日：2023-10-26

    申请号：US18214579

    申请日：2023-06-27

    申请人： MITSUBISHI CHEMICAL CORPORATION

    发明人： Kei Uchiyama ,  Kazuhisa Hatakeyama

    IPC分类号： C08G64/38 ,  C08J11/28 ,  C07C37/00 ,  C07C37/16

    CPC分类号： C08G64/38 ,  C08J11/28 ,  C07C37/005 ,  C07C37/16 ,  C08J2369/00

    摘要： A method for producing bisphenol A (BPA) is provided. The method includes step A of degrading a polycarbonate resin in a solvent and distilling off the solvent to obtain a crude solution A; step B of subjecting acetone and phenol to dehydration condensation; step C of distilling off unreacted acetone and water to obtain a concentrated liquid C; step D of crystallizing the concentrated liquid C to obtain a slurry liquid, from which a mother liquor D is obtained; step H of obtaining a solution H1 or a solution H2 from the crude solution A and part of the mother liquor D; and step I of supplying the solution H1 or H2 to the step B or C. The solution H1 contains BPA obtained by degrading BPA contained in the crude solution A and the mother liquor D into phenol and isopropenylphenol and then rebonding phenol and isopropenylphenol, and the solution H2 contains phenol obtained by degrading BPA contained in the crude solution A and the mother liquor D into phenol and acetone.

    Skewed and middle attached linear chain alkylphenol and method of making the same
    7.
    发明授权
    Skewed and middle attached linear chain alkylphenol and method of making the same 有权
    倾斜和中间连接的直链烷基酚及其制备方法

    公开(公告)号：US08704006B2

    公开(公告)日：2014-04-22

    申请号：US12965595

    申请日：2010-12-10

    申请人： Curtis Bay Campbell ,  Cedrick Mahieux

    发明人： Curtis Bay Campbell ,  Cedrick Mahieux

    IPC分类号： C07C37/16

    CPC分类号： C07C37/16 ,  C07C39/06

    摘要： A process for preparing an alkylated hydroxyl aromatic compound comprising reacting(a) a hydroxyl aromatic compound (I), having the following structure; wherein n 1, 2 or 3; m is 0, 1, 2, or 3 and R1 is Hydrogen or hydrocarbyl group; and (b) at least one β-branched primary alcohol component in the presence of an alkylating catalyst thereby producing an alkylated hydroxyl aromatic compound.

    摘要翻译： 一种制备烷基化羟基芳族化合物的方法，包括使（a）具有以下结构的羟基芳族化合物（I）： 其中n 1，2或3; m为0,1,2或3，R 1为氢或烃基; 和（b）至少一种在烷基化催化剂存在下的伯烷基伯醇组分，从而制备烷基化羟基芳族化合物。

    PROCESS FOR PRODUCTION OF HYDROXYSTILBENE DERIVATIVE HAVING PHYSIOLOGICAL ACTIVITY
    8.
    发明申请
    PROCESS FOR PRODUCTION OF HYDROXYSTILBENE DERIVATIVE HAVING PHYSIOLOGICAL ACTIVITY 有权
    生产具有生理活性的羟基苯甲酸衍生物的方法

    公开(公告)号：US20130296613A1

    公开(公告)日：2013-11-07

    申请号：US13989920

    申请日：2011-11-25

    申请人： Akinobu Kishi ,  Satoshi Doi ,  Taiji Matsukawa ,  Takeki Matsui ,  Yasumasa Yamada ,  Ichiro Yamada

    发明人： Akinobu Kishi ,  Satoshi Doi ,  Taiji Matsukawa ,  Takeki Matsui ,  Yasumasa Yamada ,  Ichiro Yamada

    IPC分类号： C07C39/19 ,  A23L1/30 ,  C07C43/23 ,  C07C41/30 ,  C07C37/16

    CPC分类号： C07C39/19 ,  A23L33/105 ,  C07C37/14 ,  C07C37/16 ,  C07C39/21 ,  C07C41/30 ,  C07C43/23

    摘要： A process for producing a hydroxystilbene derivative represented by formula (1) (wherein X1-X4 independently represent a hydrogen atom, a hydroxy group, a saturated or unsaturated linear or branched alkoxy group having 1-10 carbon atoms, or a saturated or unsaturated linear or branched alkyl group having 1-10 carbon atoms; Z1 and Z2 independently represent a hydrogen atom, or a group represented by the formula (2) (wherein X5 and X6 independently represent a hydrogen atom, a hydroxy group, a saturated or unsaturated linear or branched alkoxy group having 1-10 carbon atoms, or a saturated or unsaturated linear or branched alkyl group having 1-10 carbon atoms); and Z1 and Z2 may be the same as or different from each other; wherein X1-X6 may be the same as or different from one another), which is characterized by heating a 4-hydroxycinnamic acid compound and a hydroxystilbene compound in the presence of a metal salt.

    摘要翻译： 一种制备由式（1）表示的羟基茋衍生物的方法（其中X 1 -X 4独立地表示氢原子，羟基，具有1-10个碳原子的饱和或不饱和直链或支链烷氧基，或饱和或不饱和直链 或具有1-10个碳原子的支链烷基; Z1和Z2独立地表示氢原子或由式（2）表示的基团（其中X5和X6独立地表示氢原子，羟基，饱和或不饱和直链 或具有1-10个碳原子的支链烷氧基，或具有1-10个碳原子的饱和或不饱和直链或支链烷基）;并且Z1和Z2可以相同或不同;其中X1-X6可以是 相同或不同），其特征在于在金属盐的存在下加热4-羟基肉桂酸化合物和羟基茋化合物。