Tris(3-acetylthiopropyl)isocyanurate and preparation thereof
    4.
    发明授权
    Tris(3-acetylthiopropyl)isocyanurate and preparation thereof 失效
    三(3-乙酰硫丙基)异氰脲酸酯及其制备

    公开(公告)号:US4266055A

    公开(公告)日:1981-05-05

    申请号:US147522

    申请日:1980-05-07

    IPC分类号: C07D251/34

    CPC分类号: C07D251/34

    摘要: Disclosed in this invention are a novel compound tris(3-acetylthiopropyl)isocyanurate which can serve as an intermediate for the preparation of tris(3-mercaptopropyl)isocyanurate useful as a polymerization reaction regulator, crosslinking agent, curing agent, lubricant adjunct, etc., and a process for preparing the said compound, as well as a process for preparing tris(3-mercaptopropyl)isocyanurate using the said compound as an intermediate.

    摘要翻译: 本发明公开了一种可用作制备用作聚合反应调节剂,交联剂,固化剂,润滑剂助剂等的三(3-巯基丙基)异氰脲酸酯的中间体的新型化合物三(3-乙酰基硫代丙基)异氰脲酸酯。 ,以及制备所述化合物的方法,以及使用所述化合物作为中间体制备三(3-巯基丙基)异氰脲酸酯的方法。

    Method for preparing solid p-disodium hydroxybenzoate
    5.
    发明授权
    Method for preparing solid p-disodium hydroxybenzoate 失效
    固体对羟基苯甲酸二钠制备方法

    公开(公告)号:US4731475A

    公开(公告)日:1988-03-15

    申请号:US43323

    申请日:1987-04-28

    CPC分类号: C07C51/00 C07C51/093

    摘要: The present invention provides a method for preparing solid p-disodium hydroxybenzoate which is characterized by comprising the steps of reacting phenol, carbon tetrachloride in an amount of 0.9 to 1.2 moles per mole of phenol and sodium hydroxide in an amount of 7 to 20 moles per mole of phenol prior to the reaction in an aqueous liquid containing 10 to 40% by weight of p-disodium hydroxybenzoate and/or sodium chloride in the presence of a transition metal powder in an amount of 0.01 to 1.00% by weight based on the weight of a reaction system at a reaction temperature of 50.degree. to 150.degree. C.; cooling the resulting reaction mixture to a level of -20.degree. to +20.degree. C.; and separating said p-disodium hydroxybenzoate therefrom.

    Acylnorbornanone acetals, process for preparing the same, and perfume
compositions containing the same
    6.
    发明授权
    Acylnorbornanone acetals, process for preparing the same, and perfume compositions containing the same 失效
    酰基降冰片酮缩醛,其制备方法和含有它们的香料组合物

    公开(公告)号:US4341665A

    公开(公告)日:1982-07-27

    申请号:US240953

    申请日:1981-03-05

    摘要: An acylnorbornanone acetal is represented by the formula: ##STR1## (wherein R.sub.1 is a saturated hydrocarbon group having 2 to 7 carbon atoms and R.sub.2 is a hydrogen atom or a hydrocabon group having 1 to 10 carbon atoms). The acylnorbornanone acetal is prepared by oxidizing an .alpha.-hydroxyalkylnorbornanone acetal represented by the formula: ##STR2## (wherein R.sub.2 is a hydrogen atom or a hydrocarbon group having 2 to 7 carbon atoms). The perfume composition contains as a perfume component the acylnorbornanone acetal as represented above.

    摘要翻译: 酰基降冰片酮缩醛由下式表示:其中R1为碳原子数2〜7的饱和烃基,R2为氢原子或碳原子数为1〜10的氢可卡波基。 通过氧化由下式表示的α-羟基烷基降冰片酮缩醛(其中R 2是氢原子或具有2至7个碳原子的烃基)来制备酰基降冰片酮缩醛。 香料组合物含有如上所述的酰基降冰片酮缩醛作为香料组分。

    Admixture and cement composition using same
    8.
    发明授权
    Admixture and cement composition using same 失效
    外加剂和水泥组合物使用相同

    公开(公告)号:US5122191A

    公开(公告)日:1992-06-16

    申请号:US655866

    申请日:1991-02-15

    IPC分类号: C04B14/10

    CPC分类号: C04B14/10

    摘要: An admixture for cement compositions is prepared by calcining at 630.degree. to 870.degree. C. at least one substance selected from the group consisting of natural kaolin, halloysite and synthetic kaolin, effecting classification so that amorphous portions of alumina/silica having a mixing ratio of 0.5 to 1.3 form main components, with all particles having diameters up to 8 .mu.m and an average diameter of 0.5 to 2 .mu.m, and a specific gravity ranging from 2.45 to 2.55. This admixture is used to produce a cement composition such as mortar or concrete, which realizes excellent fluidity to promote workability, and a high strength structure.

    摘要翻译: 通过在630℃至870℃下煅烧至少一种选自天然高岭土,多水高岭土和合成高岭土的物质来制备水泥组合物的混合物,进行分级,使得具有混合比例的氧化铝/二氧化硅的非晶部分 0.5〜1.3构成主要成分,所有颗粒直径达8μm,平均直径为0.5〜2μm,比重为2.45〜2.55。 该混合物用于生产诸如砂浆或混凝土的水泥组合物,其实现了优异的流动性以提高加工性和高强度结构。