Process for preparing pentaerythritol-tetrakis(3-alkylthio-propionate)
    3.
    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。

    Stabilizer composition for synthetic resin and synthetic resin
composition containing the same
    4.
    发明授权
    Stabilizer composition for synthetic resin and synthetic resin composition containing the same 失效
    用于合成树脂的稳定剂组合物和含有它的合成树脂组合物

    公开(公告)号:US4829111A

    公开(公告)日:1989-05-09

    申请号:US151467

    申请日:1988-02-02

    IPC分类号: C08K5/3435 C08K5/3462

    CPC分类号: C08K5/3462 C08K5/3435

    摘要: A stabilizer composition for synthetic resin is described comprising a piperazine derivative represented by the following formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represents an alkyl group having from 12 to 20 carbon atoms or a 2,2,6,6-tetramethyl-4-piperidyl group; R.sub.3 and R.sub.4 each represents a hydrogen atom or a methyl group; and n and m each represents 2 or 3.A synthetic resin composition is also described comprising polyolefin and the aforesaid piperazine derivative.

    摘要翻译: 含有下式(I)表示的哌嗪衍生物的合成树脂用稳定剂组合物:其中,R 1和R 2各自表示碳原子数12〜20的烷基或2,2,6 ,6-四甲基-4-哌啶基; R 3和R 4各自表示氢原子或甲基; n和m各自表示2或3.还描述了包含聚烯烃和上述哌嗪衍生物的合成树脂组合物。

    Washing solution for printing ink
    5.
    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 purifying dibromo-dicyanobutane
    6.
    发明授权
    Process for purifying dibromo-dicyanobutane 失效
    二溴 - 二氰基丁烷的纯化方法

    公开(公告)号:US4504423A

    公开(公告)日:1985-03-12

    申请号:US568793

    申请日:1984-01-06

    CPC分类号: C07C255/00

    摘要: Dibromo-dicyanobutane is purified by washing with an aqueous solution of a compound wherein a cationic component is an alkali metal, alkaline earth metal, or ammonium ion and an anionic component is an oxygen-containing anion. The process can prevent dibromo-dicyanobutane from coloration, an irritating odor, and caking.

    摘要翻译: 通过用阳离子组分是碱金属,碱土金属或铵离子并且阴离子组分是含氧阴离子的化合物的水溶液洗涤来纯化二溴 - 二氰基丁烷。 该方法可以防止二溴 - 二氰基丁烷着色,刺激性气味和结块。