Process for the prevention or reduction of discoloration of sodium
pyrithione
    1.
    发明授权
    Process for the prevention or reduction of discoloration of sodium pyrithione 失效
    用于预防或减少吡啶硫酮钠变色的方法

    公开(公告)号:US4533736A

    公开(公告)日:1985-08-06

    申请号:US626951

    申请日:1984-07-02

    IPC分类号: C07D213/89 C07F3/06 A61K31/44

    CPC分类号: C07F3/06 C07D213/89

    摘要: Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.

    摘要翻译: 公开了一种制备具有可接受的白色或灰白色颜色的吡啶硫酮锌产品的方法,通过用有效量的选择的还原剂处理所述吡啶硫酮钠溶液(其是吡啶硫酮锌的前体)来预防或减少吡啶硫酮钠溶液的变色 所述还原剂选自碱金属亚硫酸盐,碱金属亚硫酸氢盐,肼及其混合物。

    Process for the prevention or reduction of discoloration of sodium or
zinc pyrithione
    2.
    发明授权
    Process for the prevention or reduction of discoloration of sodium or zinc pyrithione 失效
    用于预防或减少吡啶硫酮钠或锌的变色的方法

    公开(公告)号:US4482715A

    公开(公告)日:1984-11-13

    申请号:US352813

    申请日:1982-02-26

    IPC分类号: C07D213/89 C07F3/00

    摘要: Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and preventing or reducing discoloration of sodium pyrithione solutions by treating said sodium pyrithione solutions (which are precursors to zinc pyrithione) with an effective amount of a selected reducing agent to prevent or reduce the discoloration, said reducing agent selected from the class consisting of alkali metal sulfites, alkali metal bisulfites, hydrazine, and mixtures thereof.

    摘要翻译: 公开了一种制备具有可接受的白色或灰白色颜色的吡啶硫酮锌产品的方法,通过用有效量的选择的还原剂处理所述吡啶硫酮钠溶液(其是吡啶硫酮锌的前体)来预防或减少吡啶硫酮钠溶液的变色 所述还原剂选自碱金属亚硫酸盐,碱金属亚硫酸氢盐,肼及其混合物。

    Preparation of cyanuric acid
    3.
    发明授权
    Preparation of cyanuric acid 失效
    氰尿酸的制备

    公开(公告)号:US4360671A

    公开(公告)日:1982-11-23

    申请号:US308635

    申请日:1981-10-05

    IPC分类号: C07D251/32 C07D251/36

    CPC分类号: C07D251/32 C07D251/36

    摘要: A highly pure cyanuric acid produced by pyrolyzing a nitrogenous containing material capable of yielding cyanuric acid, such as urea, in an alkyl dinitrile solvent such as adiponitrile, at elevated temperatures, is disclosed. The overall process converts substantially all of the urea to cyanuric acid and cyanuric acid derivatives which are capable of being converted into trichloroisocyanuric acid and similar compounds, while allowing substantially complete recovery of the nitrile solvent for reuse.

    摘要翻译: 公开了通过在高温下将能够产生氰尿酸的含氮材料如尿素在烷基二腈溶剂如己二腈溶解热产生的高纯度的三聚氰酸。 总体方法将基本上所有的尿素转化为能够转化为三氯异氰脲酸和类似化合物的氰尿酸和氰尿酸衍生物,同时允许腈溶剂基本上完全回收再利用。

    Process for stabilizing zinc pyrithione plus cuprous oxide in paint
    4.
    发明授权
    Process for stabilizing zinc pyrithione plus cuprous oxide in paint 失效
    用于稳定吡啶硫酮锌加氧化亚铜的方法

    公开(公告)号:US5137569A

    公开(公告)日:1992-08-11

    申请号:US775644

    申请日:1991-10-10

    CPC分类号: C09D5/1612 C09D5/1687

    摘要: The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains a metal salt of wood rosin in order to impart desired gelation-inhibition to the paint.

    摘要翻译: 本发明一般涉及涂料和涂料基料,更具体地说涉及一种在吡啶硫酮锌加氧化亚铜杀生剂中提供稳定的无凝胶分散体的方法和组合物。 根据本发明的方法,涂料或油漆基质含有木松香的金属盐,以赋予油漆所需的凝胶化抑制作用。

    Process for producing sodium and zinc pyrithione
    5.
    发明授权
    Process for producing sodium and zinc pyrithione 失效
    吡啶硫酮钠和锌的制备方法

    公开(公告)号:US4396766A

    公开(公告)日:1983-08-02

    申请号:US372510

    申请日:1982-04-28

    IPC分类号: C07D213/89

    CPC分类号: C07D213/89

    摘要: Disclosed is a process for producing a zinc pyrithione product having an acceptable white or off-white color and containing substantially no undesired 2-hydroxypyridine-N-oxide or metal salt complexes thereof, by(1) making sodium pyrithione by reacting a 2-halopyridine-N-oxide with sodium hydrosulfide and sodium carbonate (or a mixture of sodium carbonate and sodium hydroxide) under selected addition temperatures and reaction temperatures and in selected mole ratios; followed by(2) making zinc pyrithione by reacting the sodium pyrithione with a zinc salt.

    摘要翻译: 公开了一种制备具有可接受的白色或灰白色并且基本上不含有不需要的2-羟基吡啶-N-氧化物或金属盐络合物的吡啶硫酮锌产物的方法,通过(1)通过使2-卤代吡啶 -N-氧化物与氢硫化钠和碳酸钠(或碳酸钠和氢氧化钠的混合物)在选定的加成温度和反应温度下以选择的摩尔比进行; 然后(2)通过使吡啶硫酮钠与锌盐反应制备吡啶硫酮锌。

    Gel-free paint containing zinc pyrithione, cuprous oxide, and amine
treated rosin
    7.
    发明授权
    Gel-free paint containing zinc pyrithione, cuprous oxide, and amine treated rosin 失效
    含有吡啶硫酮锌,氧化亚铜和胺处理松香的无凝胶涂料

    公开(公告)号:US5298061A

    公开(公告)日:1994-03-29

    申请号:US61124

    申请日:1993-05-14

    IPC分类号: C09D5/14 C09D5/16 C09D201/00

    CPC分类号: C09D5/1612

    摘要: The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains an amine treated wood rosin in order to impart desired gelation-inhibition to the paint.

    摘要翻译: 本发明一般涉及涂料和涂料基料,更具体地说涉及一种在吡啶硫酮锌加氧化亚铜杀生剂中提供稳定的无凝胶分散体的方法和组合物。 根据本发明的方法,涂料或油漆基料含有经胺处理的木质松香,以赋予油漆所需的凝胶化抑制作用。

    Process for stabilizing zinc pyrithione plus cuprous oxide in paint
    9.
    发明授权
    Process for stabilizing zinc pyrithione plus cuprous oxide in paint 失效
    用于稳定吡啶硫酮锌加氧化亚铜的方法

    公开(公告)号:US5232493A

    公开(公告)日:1993-08-03

    申请号:US938961

    申请日:1992-09-01

    IPC分类号: C09D5/14 C09D5/16

    CPC分类号: C09D5/14 C09D5/1612

    摘要: The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base is essentially water-free, and preferably contains a desiccant in order to impart desired gelation-inhibition to the paint.

    摘要翻译: 本发明一般涉及涂料和涂料基料,更具体地说涉及一种在吡啶硫酮锌加氧化亚铜杀生剂中提供稳定的无凝胶分散体的方法和组合物。 根据本发明的方法,涂料或油漆基本基本上是无水的,并且优选含有干燥剂以便赋予油漆所需的凝胶化抑制作用。

    Process for stabilizing zinc pyrithione plus cuprous oxide in paint
    10.
    发明授权
    Process for stabilizing zinc pyrithione plus cuprous oxide in paint 失效
    用于稳定吡啶硫酮锌加氧化亚铜的方法

    公开(公告)号:US5112397A

    公开(公告)日:1992-05-12

    申请号:US716415

    申请日:1991-06-17

    IPC分类号: C09D5/16

    CPC分类号: C09D5/1687 C09D5/1612

    摘要: The present invention relates generally to paints and paint bases, and, more specifically to a process and composition for providing a stable gel-free dispersion of zinc pyrithione plus cuprous oxide biocide in paint. In accordance with the process of the present invention, the paint or paint base contains an amine compound or esterified wood rosin in order to impart desired gelation-inhibition to the paint.

    摘要翻译: 本发明一般涉及涂料和涂料基料,更具体地说涉及一种在吡啶硫酮锌加氧化亚铜杀生剂中提供稳定的无凝胶分散体的方法和组合物。 根据本发明的方法,漆或油漆基质含有胺化合物或酯化木松香,以便赋予油漆所需的凝胶化抑制作用。