Washing solution for printing ink
    2.
    发明授权
    Washing solution for printing ink 失效
    用于印刷油墨的清洗液

    公开(公告)号:US4769170A

    公开(公告)日:1988-09-06

    申请号:US863188

    申请日:1986-05-14

    摘要: A washing solution for flexographic ink is disclosed, comprising the components (A) to (E):Component (A):0.05 to 35 wt % of an amine selected from water-soluble aliphatic primary or secondary amines having 2 to 3 carbon atoms, ammonia and morpholine, or an alkaline substance selected from hydroxides, carbonates, borates, silicates, phosphates and alkaline lower fatty acid salts of alkali metal;Component (B):0.001 to 1.0 wt % of a defoaming agent;Component (C):0 to 75 wt % of an aliphatic polyhydric alcohol having a molecular weight of 500 or less;Component (D):0 to 75 wt % of a water-soluble aliphatic monohydric alcohol having 1 to 4 carbon atoms; andComponent (E):25 to 99.9 wt % of water.

    摘要翻译: 公开了柔性油墨的洗涤液,其包含成分(A)〜(E):成分(A):0.05〜35重量%的选自水溶性脂族伯或仲碳数2〜3的胺, 或选自碱金属的氢氧化物,碳酸盐,硼酸盐,硅酸盐,磷酸盐和碱性低级脂肪酸盐的碱性物质; 成分(B):0.001〜1.0重量%的消泡剂; 成分(C):0〜75重量%的分子量为500以下的脂肪族多元醇; 成分(D):0〜75重量%的碳原子数为1〜4的水溶性脂肪族一元醇; 和组分(E):25至99.9重量%的水。

    Process for preparing pentaerythritol-tetrakis(3-alkylthio-propionate)
    5.
    发明授权
    Process for preparing pentaerythritol-tetrakis(3-alkylthio-propionate) 失效
    季戊四醇 - 四(3-烷硫基丙酸酯)的制备方法

    公开(公告)号:US4774355A

    公开(公告)日:1988-09-27

    申请号:US922726

    申请日:1986-10-24

    CPC分类号: C07C323/00

    摘要: A process for preparing a pentaerythritol-tetrakis(3-alkylthio-propionate) represented by the general formula: ##STR1## wherein R represents an alkyl group having from 8 to 30 carbon atoms, is disclosed, comprising reacting an alkylmercaptan having from 8 to 30 carbon atoms with an acrylic ester or an acrylic amide to form a 3-alkylthio-propionic acid ester or a 3-alkylthio-propionic acid amide, hydrolyzing the ester or amide to form a 3-alkylthio-propionic acid, and then reacting this product with pentaerythritol. The desired product can easily be obtained at high purity and high yield by this process.

    摘要翻译: 公开了一种制备由以下通式表示的季戊四醇 - 四(3-烷硫基 - 丙酸酯)的方法,其中R表示碳原子数为8至30的烷基,包括使具有8至30个碳原子的烷基硫醇 碳原子与丙烯酸酯或丙烯酰胺反应形成3-烷硫基 - 丙酸酯或3-烷硫基 - 丙酸酰胺,水解酯或酰胺形成3-烷硫基丙酸,然后使该产物 与季戊四醇。 通过该方法可以容易地以高纯度和高产率获得所需的产物。

    Process for producing 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid
    6.
    发明授权
    Process for producing 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid 有权
    制备2,3,5,6-四氯-1,4-苯二甲酸的方法

    公开(公告)号:US06452046B2

    公开(公告)日:2002-09-17

    申请号:US09791323

    申请日:2001-02-22

    IPC分类号: A01N3710

    CPC分类号: C07C51/06 C07C63/30

    摘要: A process for producing 2,3,5,6-tetrachloro-1, 4-benzenedicarboxylic acid, comprising heating 2,3,5,6-tetrachloro-1,4-benzenedicarboxamide together with sulfuric acid exhibiting an acidity function (—Ho) of 10.27 to 14.44 in the presence of water contained in an amount smaller than a stoichiometric value of hydrolysis at 110 to 190° C. This process efficiently produces 2,3,5,6-tetrachloro-1,4-benzenedicarboxylic acid which is a precursor of dimethyl 2,3,5,6-tetrachloro-1,4-benzenedicarboxylate useful as a herbicide.

    摘要翻译: 一种制备2,3,5,6-四氯-1,4-苯二甲酸的方法,包括将2,3,5,6-四氯-1,4-苯二甲酰胺与表现出酸度函数(-Ho)的硫酸一起加热, 在含水量小于110至190℃的水解化学计量值的水存在下,为10.27至14.44。该方法有效地产生2,3,5,6-四氯-1,4-苯二甲酸,其为 用作除草剂的2,3,5,6-四氯-1,4-苯二甲酸二甲酯的前体。