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26 条记录 (耗时 0.016 秒)

    Process for the production of magnetic recording carriers
    1.
    发明授权
    Process for the production of magnetic recording carriers 失效
    制造磁记录载体的方法

    公开(公告)号：US5009925A

    公开(公告)日：1991-04-23

    申请号：US256131

    申请日：1988-10-05

    申请人： Ernst Grigat ,  Walter Meckel ,  Burkhard Nippe

    发明人： Ernst Grigat ,  Walter Meckel ,  Burkhard Nippe

    IPC分类号： G11B5/842 ,  G11B5/70 ,  G11B5/84 ,  G11B5/845

    CPC分类号： G11B5/84 ,  G11B5/7013 ,  Y10S428/90

    摘要： Magnetic recording carriers having improved mechanical properties are obtained by using, as dispersing agents, compounds corresponding to the general formula ##STR1## which are attached to the magnetic pigment by their SO.sub.3 H group and which have reactive groups by which they are linked to the reactive groups of the polymeric binder through a difunctional or higher functional isocyanate.

    摘要翻译： 具有改善的机械性能的磁记录载体是通过使用与通式（IMAGE）相对应的化合物作为分散剂，它们通过SO 3 H基与磁性颜料连接并具有与反应性基团连接的反应性基团 的聚合物粘合剂通过双官能或更高官能的异氰酸酯。

    Polytriazines and a process for their production
    2.
    发明授权
    Polytriazines and a process for their production 失效
    聚三嗪类及其生产工艺

    公开(公告)号：US4031067A

    公开(公告)日：1977-06-21

    申请号：US707552

    申请日：1976-07-22

    申请人： Rudolf Sundermann ,  Gunther Rottloff ,  Ernst Grigat

    发明人： Rudolf Sundermann ,  Gunther Rottloff ,  Ernst Grigat

    IPC分类号： C08G73/00 ,  C08G73/06 ,  C08G75/00 ,  C08G18/00 ,  C08G18/71

    CPC分类号： C08G73/065

    摘要： Mixtures of aliphatic, cycloaliphatic or aromatic polyfunctional N-cyanosulfon amides and aromatic polyfunctional cyanic acid ester are converted at 30.degree. to 150.degree. C into fusible prepolymers or prepolymers soluble in organic solvents (polymeric N-organo-isourea ethers). Said prepolymers are highly stable in storage and react at 150.degree. - 350.degree. C to high molecular weight polymers of of triazine structure which are insoluble in solvents and infusible. The prepolymers may be used for the production of coatings or shaped articles or laminates.

    摘要翻译： 脂肪族，脂环族或芳香族多官能N-氰基磺酰胺和芳香族多官能氰酸酯的混合物在30℃至150℃下转化成可溶于有机溶剂（聚合N-有机 - 异脲醚）的可熔预聚物或预聚物。 所述预聚物在储存中高度稳定，在150-350℃下与不溶于溶剂和不溶性的三嗪结构的高分子量聚合物反应。 预聚物可用于生产涂料或成型制品或层压材料。

    Process for the separation of polyurethane foam hydrolysates into polyol and diamine
    4.
    发明授权
    Process for the separation of polyurethane foam hydrolysates into polyol and diamine 失效
    将聚氨酯泡沫水解物分离成多元醇和二胺的方法

    公开(公告)号：US4282367A

    公开(公告)日：1981-08-04

    申请号：US105059

    申请日：1979-12-19

    申请人： Georg Niederdellmann ,  Norbert Roemer ,  Ernst Grigat

    发明人： Georg Niederdellmann ,  Norbert Roemer ,  Ernst Grigat

    IPC分类号： C08G18/00 ,  C08G18/82 ,  C08J11/16 ,  C08G18/48 ,  C08G18/14

    CPC分类号： C08J11/16 ,  C08J2375/04 ,  Y02W30/705 ,  Y10S521/914

    摘要： The instant invention is directed to a process for the separation of polyurethane hydrolysates into polyamines and polyols which can be used again for the production of polyurethanes, comprising introducing gaseous hydrogen chloride into the hydrolysate mixture which has optionally been diluted with an inert solvent, and removing the precipitated amine salt by filtration, characterized in that(a) gaseous hydrogen chloride is optionally first introduced into the hydrolysate in a quantity of from 0.02 to 0.07 mol per amine equivalent, the reaction mixture is filtered and the filter residue is discarded, then(b) from 0.20 to 0.47 mol of gaseous hydrogen chloride per mol of amine equivalents still present is introduced into the filtrate and the precipitated amine salt is filtered off, then(c) stage (b) is repeated one or more times until the amine group content in the filtrate is below 1% by weight, based on the solvent-free filtrate, and finally(d) precipitation of the amine is completed by the introduction of from 0.5 to 1.0 mol of gaseous hydrogen chloride, based on the amine equivalents remaining in the filtrate.

    摘要翻译： 本发明涉及将聚氨酯水解物分离成多胺和多元醇的方法，其可以再次用于生产聚氨酯，包括将气态氯化氢引入到任选用惰性溶剂稀释的水解产物混合物中，并除去 通过过滤沉淀的胺盐，其特征在于，（a）气态氯化氢任选地首先以每个胺当量为0.02至0.07mol的量引入水解产物中，将反应混合物过滤并弃去过滤残余物，然后（ b）将0.20至0.47摩尔的气态氯化氢/摩尔仍存在的胺当量引入滤液中，滤出沉淀的胺盐，然后（c）重复步骤（b）一次或多次，直至胺基 基于无溶剂的滤液，滤液中的含量低于1重量％，最后（d）胺的沉淀完全 通过根据残留在滤液中的胺当量，从0.5至1.0mol的气态氯化氢引入。