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    • 1. 发明申请
    • METHOD FOR PRODUCING AQUEOUS HYDROGEN PEROXIDE SOLUTION
    • 生产过氧化氢水溶液的方法
    • US20140341800A1
    • 2014-11-20
    • US14344542
    • 2012-07-12
    • Nobuo TajimaYoshihisa Arai
    • Nobuo TajimaYoshihisa Arai
    • C01B15/013
    • C01B15/0135C01B15/013
    • An object is to provide a method for producing an aqueous hydrogen peroxide solution, which can effectively remove an impurity, such as silicic acid or a silicate, contained in an aqueous hydrogen peroxide solution. The method of the present invention for producing an aqueous hydrogen peroxide solution has a first step for contacting an aqueous hydrogen peroxide solution with activated alumina which has been cleaned with purified water, and a second step for, after the first step, contacting the resultant aqueous hydrogen peroxide solution with a cation-exchange resin. The cation-exchange resin is preferably a hydrogen ion-type, strongly acid cation-exchange resin having a sulfonic acid group. The aqueous hydrogen peroxide solution being in contact with the activated alumina and the cation-exchange resin preferably has a temperature of 30° C. or lower.
    • 目的是提供一种生产过氧化氢水溶液的方法,其可以有效地除去过氧化氢水溶液中所含的杂质如硅酸或硅酸盐。 本发明的用于生产过氧化氢水溶液的方法具有使过氧化氢水溶液与用净化水清洗的活性氧化铝接触的第一步骤,第二步是在第一步骤之后,使所得水溶液 过氧化氢溶液与阳离子交换树脂。 阳离子交换树脂优选为具有磺酸基的氢离子型强酸阳离子交换树脂。 与活性氧化铝和阳离子交换树脂接触的过氧化氢水溶液的温度优选为30℃以下。
    • 6. 发明授权
    • Process for producing diaryl carbonate
    • 生产碳酸二芳酯的方法
    • US5980445A
    • 1999-11-09
    • US965617
    • 1997-11-06
    • Masamichi MizukamiYoshihisa AraiHidefumi HaradaTakuo OhshidaHiroaki Ohgi
    • Masamichi MizukamiYoshihisa AraiHidefumi HaradaTakuo OhshidaHiroaki Ohgi
    • C07C68/00C07C68/06C07C69/96
    • C07C68/06C07C68/00
    • A process for producing diaryl carbonate which comprises (A) a step for producing dialkyl carbonate represented by the general formula RO--CO--OR by reacting urea with alkyl alcohol represented by the general formula ROH, (B) a step for producing both alkyl aryl carbonate represented by the general formula RO--CO--OAr and diaryl carbonate represented by the general formula ArO--CO--OAr by reacting dialkyl carbonate produced in the above step (A) with an aromatic hydroxy compound represented by the general formula ArOH, and (C) a step for producing diaryl carbonate represented by the general formula ArO--CO--OAr by allowing to conduct disproportionation reaction of unreacted alkyl aryl carbonate produced in the above step (B), wherein R shows an alkyl group and Ar shows a non-substituted phenyl group or a phenyl group substituted by alkyl group, alkoxy group, aryl group, aryloxy group or halogen.
    • 一种制备碳酸二芳酯的方法,其包括(A)通过脲与由通式ROH表示的烷基醇反应制备由通式RO-CO-OR表示的碳酸二烷基酯的步骤,(B)制备烷基芳基 由通式RO-CO-OAr表示的碳酸酯和由通式ArO-CO-OAr表示的碳酸二芳基酯通过上述步骤(A)中制备的碳酸二烷基酯与由通式ArOH表示的芳族羟基化合物和( C)通过使上述步骤(B)中产生的未反应的碳酸烷基芳基酯进行歧化反应,制备由通式ArO-CO-OAr表示的碳酸二芳基酯的步骤,其中R表示烷基,Ar表示非 - 取代的苯基或被烷基,烷氧基,芳基,芳氧基或卤素取代的苯基。
    • 10. 发明授权
    • Novel nitrosourea compounds and process for preparing the same
    • 新型亚硝基脲类化合物及其制备方法
    • US4241052A
    • 1980-12-23
    • US38638
    • 1979-05-14
    • Kenji TsujiharaMasakatsu OzekiYoshihisa Arai
    • Kenji TsujiharaMasakatsu OzekiYoshihisa Arai
    • C07H13/12C07H17/00A61K31/70A61K31/73
    • C07H13/12C07H17/00
    • A nitrosourea compound of the formula: ##STR1## wherein R.sup.1 is an alicyclic group having 3 to 6 carbon atoms, phenyl, phenyl substituted with one to substituents selected from halogen, lower alkyl, lower alkoxy, hydroxy and nitro, or a heteromonocyclic group selected from oxiranyl, tetrahydrofuryl, 1,3-dioxolanyl, 1,4-dioxanyl, morpholino, tetrahydro-S,S-dioxo-thienyl, furyl, thienyl and pyridyl; R.sup.2 is aldopentofuranosyl, aldo-pentopyranosyl, aldo-hexopyranosyl or O-aldo-hexopyranosyl-(1.fwdarw.4)-aldo-hexopyranosyl; and A is a single bond or straight or branched alkylene having one to 3 carbon atoms, is prepared by nitrosation of a compound of the formula: ##STR2## wherein R.sup.1, R.sup.2 and A are the same as above. Said nitrosourea compound is useful as an anti-tumor or anti-leukemic agent however, effectiveness in human beings has not yet been demonstrated.
    • 具有下式的亚硝基脲化合物:其中R 1是具有3至6个碳原子的脂环基,苯基,被一个选自卤素,低级烷基,低级烷氧基,羟基和硝基的取代基取代的苯基或被选择的杂单环基团 由环氧乙烷基,四氢呋喃基,1,3-二氧戊环基,1,4-二恶烷基,吗啉代,四氢S,S-二氧代噻吩基,呋喃基,噻吩基和吡啶基; R2是醛二糖呋喃糖基,醛 - 吡喃葡萄糖基,醛 - 六吡喃糖基或O-羟基 - 六吡喃糖基 - (1-> 4) - 六氢吡喃糖基; 并且A是单键或具有1至3个碳原子的直链或支链亚烷基,是通过亚化下式化合物制备的:其中R1,R2和A与上述相同。 所述的亚硝基脲化合物可用作抗肿瘤或抗白血病药物,但人类尚未证明其有效性。