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    METHOD FOR PRODUCING EPSILON-CAPROLACTAM
    1.
    发明申请
    METHOD FOR PRODUCING EPSILON-CAPROLACTAM 有权

    公开(公告)号：US20220411379A1

    公开(公告)日：2022-12-29

    申请号：US17777739

    申请日：2020-11-18

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Daijiro TSUKAMOTO ,  Kenji KAWAMURA ,  Katsushige YAMADA ,  Masato AKAHIRA ,  Daisuke YAMAMOTO

    IPC: C07D223/10

    Abstract: The present invention relates to a method of producing ε-caprolactam, the method including the following steps (A) and (B): (A) a step of reacting 5-cyanovaleramide with hydrogen in an aqueous solvent in a presence of a hydrogenation catalyst to obtain a 5-cyanovaleramide hydrogenation reaction mixture; (B) a step of heating the 5-cyanovaleramide hydrogenation reaction mixture at a temperature of 180° C. or higher and 300° C. or lower in an aqueous solvent to obtain ε-caprolactam.

    METHOD FOR PRODUCING epsilon-CAPROLACTAM
    2.
    发明申请
    METHOD FOR PRODUCING epsilon-CAPROLACTAM 审中-公开

    公开(公告)号：US20200062704A1

    公开(公告)日：2020-02-27

    申请号：US16466230

    申请日：2017-12-05

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Daijiro TSUKAMOTO ,  Masateru ITO ,  Katsushige YAMADA ,  Masato AKAHIRA ,  Daisuke YAMAMOTO ,  Koji YAMAUCHI

    IPC: C07D201/08

    Abstract: The present invention is a method of producing ε-caprolactam through adipamide as an intermediate, and characteristically includes a lactamization step of reacting adipamide, formed from a material compound, with hydrogen and ammonia in the presence of a catalyst containing: a metal oxide mainly containing an oxide(s) of one or more metallic elements selected from the group consisting of metallic elements of group 5 and groups 7 to 14 in the 4th to 6th periods of the periodic table; and a metal and/or a metal compound having a hydrogenation ability. The method can increase the selectivity of ε-caprolactam.

    METHOD FOR PRODUCING NITRILE
    4.
    发明申请
    METHOD FOR PRODUCING NITRILE 有权

    公开(公告)号：US20210032197A1

    公开(公告)日：2021-02-04

    申请号：US16966183

    申请日：2019-02-05

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Daijiro TSUKAMOTO ,  Kenji KAWAMURA ,  Katsushige YAMADA ,  Masato AKAHIRA ,  Daisuke YAMAMOTO

    IPC: C07C253/20

    Abstract: The present invention provides a method of producing a nitrile from a primary amide, characterized in that the primary amide is subjected to a dehydration reaction in a supercritical fluid in the presence of an acid catalyst. The present invention achieves the object of reducing the corrosion of a reactor and the thermal decomposition of raw materials, as well as provides the effect of improving the reaction rate and nitrile selectivity.

    Polyarylene Sulfide Resin Composition and Molded Article Comprising Same
    5.
    发明申请
    Polyarylene Sulfide Resin Composition and Molded Article Comprising Same 有权
    聚亚芳基硫醚树脂组合物及其成型品

    公开(公告)号：US20160319099A1

    公开(公告)日：2016-11-03

    申请号：US15107655

    申请日：2014-12-19

    Applicant: TORAY INDUSTRIES, INC.

    Inventor： Keiko ICHINOSE ,  Hidenobu TAKAO ,  Daisuke YAMAMOTO ,  Koji YAMAUCHI

    IPC: C08K5/098 ,  C08J5/18

    CPC classification number: C08K5/098 ,  C08J5/18 ,  C08J2381/04 ,  C08L81/02

    Abstract: A polyarylene sulfide resin composition including a polyarylene sulfide (A) and an alkaline earth metal organic carboxylate (B) in an amount of 0.001 to 10 mol % based on the formula —(Ar—S)—, a repeating unit of polyarylene sulfide, wherein the polyarylene sulfide (A) has a weight average molecular weight of 10,000 or more and a weight reduction during heating that satisfies the equation ΔWr=(W1-W2)/W1×100≦0.18 (%), wherein ΔWr is a weight reduction ratio (%) determined by a thermogravimetric analysis performed in a non-oxidizing atmosphere under normal pressure at a temperature rise rate of 20° C./min from 50° C. to any temperature equal to or higher than 330° C., wherein W1 is a sample weight at 100° C., and W2 is a sample weight at 330° C.

    Abstract translation: 包含聚芳硫醚（A）和碱土金属有机羧酸酯（B）的聚芳硫醚树脂组合物的量为0.001〜10摩尔％，基于式 - （Ar-S） - ，聚芳硫醚的重复单元， 其中所述聚芳硫醚（A）的重均分子量为10,000以上，加热时的重量减少满足式ΔWr=（W1-W2）/ W1×100≤0.18（％），其中ΔWr为重量减少 通过在非氧化性气氛中在常压下以20℃/分钟的升温速率从50℃至任何等于或高于330℃的温度进行的热重分析测定的比率（％），其中 W1是100℃的样品重量，W2是330℃下的样品重量。

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