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39 条记录 (耗时 0.035 秒)

    Process for the production of non-foamed moldings
    32.
    发明授权
    Process for the production of non-foamed moldings 失效
    非泡沫成型制品的生产工艺

    公开(公告)号：US4720519A

    公开(公告)日：1988-01-19

    申请号：US832956

    申请日：1986-02-26

    申请人： Wilfried Orywol ,  Fritz Ehrhard ,  Walter Uerdingen

    发明人： Wilfried Orywol ,  Fritz Ehrhard ,  Walter Uerdingen

    IPC分类号： C08G18/00 ,  B29C39/00 ,  C08G18/08 ,  C08G18/10 ,  C08G18/30 ,  C08L67/00 ,  C08L75/00 ,  C08K9/12

    CPC分类号： C08G18/302 ,  C08G18/10

    摘要： Urea-modified bubble-free moldings based on polyisocyanate polyaddition products are made by reacting (a) an organic polyisocyanate with (b) a polyhydroxyl compound and/or polyepoxide in the presence of (c) a water chain extender in the form of an aqueous alkali aluminosilicate or an aqueous alkali-alkaline earth aluminosilicate of the zeolite type in a mold using cast resin technology. The reaction components are used in quantities such that the equivalent ratio of isocyanate to hydroxyl and/or epoxide groups is from 1.1:1 to 6.1. The chain extender is used in a quantity such that the amount of water is at least equivalent to the excess of isocyanate. These moldings may be made by a one-shot or a two-shot process. These moldings are characterized by better mechanical properties such as tensile strength and elongation than prior art moldings.

    摘要翻译： 基于多异氰酸酯加聚产物的尿素改性的无气泡模制品通过（a）有机多异氰酸酯与（b）多羟基化合物和/或聚环氧化物在（c）水性增链剂存在下，以水溶液形式 碱性硅铝酸盐或沸石型碱金属碱土水溶液的铝酸盐水溶液。 反应组分的用量使得异氰酸酯与羟基和/或环氧基的当量比为1.1:1至6.1。 扩链剂的使用量使得水的量至少等于过量的异氰酸酯。 这些模制品可以通过单次或两次方法制成。 这些模制品的特征在于比现有技术的模制品更好的机械性能，例如拉伸强度和伸长率。

    Fixatives for dentistry and their use
    36.
    发明授权
    Fixatives for dentistry and their use 失效
    用于牙科及其使用的固定剂

    公开(公告)号：US4324590A

    公开(公告)日：1982-04-13

    申请号：US867210

    申请日：1978-01-05

    申请人： Hans H. Schulz ,  Walter Uerdingen ,  Kuno Wagner

    发明人： Hans H. Schulz ,  Walter Uerdingen ,  Kuno Wagner

    IPC分类号： A61K6/00 ,  A61K6/09 ,  C09K3/00

    CPC分类号： A61K6/0023 ,  A61K6/0038 ,  Y10S528/92

    摘要： The present invention provides a two-component composition for use to form a solvent-free fixing material suitable for use in dentistry, which fixing material is liquid at room temperature and has a viscosity in the range of from 5,000 to 100,000 cP, said compositions having: a first component comprising at least one organic polyisocyanate with aliphatically and/or cycloaliphatically bonded isocyanate groups; and a second component comprising (a) at least one polyhydroxy compound having a molecular weight in the range of from 200 to 20,000, being substantially free of ether groups, and having at least 2 aliphatically bonded OH groups and (b) from 1 to 60% by weight, relative to the total mixture, of monohydric and/or polyhydric alcohols with a molecular weight below 200 and/or from 0 to 40% by weight, relative to the total mixture, of oligomeric polyesters containing at least 2 OH groups or ester-diols, with an average molecular weight of from 100 to 500, the first and second components of the mixture being present in amounts corresponding to a NCO/OH ratio of from 0.8:1 1.2:1.

    摘要翻译： 本发明提供一种双组分组合物，其用于形成适用于牙科的无溶剂固定材料，该固定材料在室温下为液体，并且具有在5,000至100,000cP范围内的粘度，所述组合物具有 ：包含至少一种有机多异氰酸酯与脂族和/或脂环结合的异氰酸酯基团的第一组分; 和第二组分，其包含（a）至少一种分子量为200至20,000的多羟基化合物，基本上不含醚基团，并具有至少2个脂族键合的OH基团和（b）1至60个 相对于总混合物，相对于总混合物，分子量低于200和/或0至40重量％的含有至少2个OH基团的低聚聚酯的一元和/或多元醇的重量％或 酯二醇，平均分子量为100至500，混合物的第一和第二组分以对应于0.8:1 1.2:1的NCO / OH比的量存在。

    Preparation of isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines]
    37.
    发明授权
    Preparation of isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines] 失效
    制备1,3 [恶唑，恶嗪，二唑和二嗪]的异氰酸酯衍生物

    公开(公告)号：US4247689A

    公开(公告)日：1981-01-27

    申请号：US47515

    申请日：1979-06-11

    申请人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    发明人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    IPC分类号： C07D233/88 ,  C07D235/02 ,  C07D239/22 ,  C07D263/38 ,  C07D263/48 ,  C07D263/52 ,  C08G18/78 ,  C08G18/80 ,  C07D265/04 ,  C07D233/70 ,  C07D263/04

    CPC分类号： C07D235/02 ,  C07D233/88 ,  C07D239/22 ,  C07D263/48 ,  C07D263/52 ,  C08G18/7875 ,  C08G18/8061

    摘要： The present invention relates to a new organic heterocyclic isocyanate which is the reaction product of an organic diisocyanate and an amino or hydroxy nitrile. The invention also relates to a process of producing such isocyanates by reacting an excess of the diisocyanate with the nitrile under conditions under which the nitrile will not decompose and then maintaining the reaction mixture at an elevated temperature until the isocyanate nitrile adduct cyclizes. The reaction may be carried out in the presence of a catalyst for isocyanate addition reactions. Additionally, the invention relates to a process for the production of polyurethane by the reaction of the heterocyclic isocyanates with compounds carrying at least two isocyanate reactive hydrogen atoms per molecule.

    摘要翻译： 本发明涉及作为有机二异氰酸酯与氨基或羟基腈的反应产物的新的有机杂环异氰酸酯。 本发明还涉及通过使过量的二异氰酸酯与腈在腈不分解的条件下反应然后将反应混合物保持在升高的温度直到异氰酸酯加合物环化来生产这种异氰酸酯的方法。 该反应可以在用于异氰酸酯加成反应的催化剂的存在下进行。 此外，本发明涉及通过杂环异氰酸酯与每分子携带至少两个异氰酸酯反应性氢原子的化合物的反应生产聚氨酯的方法。

    Process for preparing polyurethanes
    38.
    发明授权
    Process for preparing polyurethanes 失效
    制备聚氨酯的方法

    公开(公告)号：US4242489A

    公开(公告)日：1980-12-30

    申请号：US47517

    申请日：1979-06-11

    申请人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    发明人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    IPC分类号： C07D233/88 ,  C07D235/02 ,  C07D239/22 ,  C07D263/38 ,  C07D263/48 ,  C07D263/52 ,  C08G18/78 ,  C08G18/80 ,  C08G18/77 ,  C08G18/14

    CPC分类号： C07D235/02 ,  C07D233/88 ,  C07D239/22 ,  C07D263/48 ,  C07D263/52 ,  C08G18/7875 ,  C08G18/8061

    摘要： The present invention relates to a new organic heterocyclic isocyanate which is the reaction product of an organic diisocyanate and an amino or hydroxy nitrile. The invention also relates to a process of producing such isocyanates by reacting an excess of the diisocyanate with the nitrile under conditions under which the nitrile will not decompose and then maintaining the reaction mixture at an elevated temperature until the isocyanate nitrile adduct cyclizes. The reaction may be carried out in the presence of a catalyst for isocyanate addition reactions. Additionally, the invention relates to a process for the production of polyurethane by the reaction of the heterocyclic isocyanates with compounds carrying at least two isocyanate reactive hydrogen atoms per molecule.

    摘要翻译： 本发明涉及作为有机二异氰酸酯与氨基或羟基腈的反应产物的新的有机杂环异氰酸酯。 本发明还涉及通过使过量的二异氰酸酯与腈在腈不分解的条件下反应然后将反应混合物保持在升高的温度直到异氰酸酯加合物环化来生产这种异氰酸酯的方法。 该反应可以在用于异氰酸酯加成反应的催化剂的存在下进行。 此外，本发明涉及通过杂环异氰酸酯与每分子携带至少两个异氰酸酯反应性氢原子的化合物的反应生产聚氨酯的方法。

    Isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines]
    39.
    发明授权
    Isocyanate derivatives of 1,3[oxazoles, oxazines, diazoles and diazines] 失效
    1,3 [恶唑，恶嗪，二唑和二嗪]的异氰酸酯衍生物

    公开(公告)号：US4173567A

    公开(公告)日：1979-11-06

    申请号：US656909

    申请日：1976-02-10

    申请人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    发明人： Kurt Findeisen ,  Kuno Wagner ,  Walter Uerdingen

    IPC分类号： C07D233/88 ,  C07D235/02 ,  C07D239/22 ,  C07D263/38 ,  C07D263/48 ,  C07D263/52 ,  C08G18/78 ,  C08G18/80 ,  C07D233/70 ,  C07D265/06

    CPC分类号： C07D235/02 ,  C07D233/88 ,  C07D239/22 ,  C07D263/48 ,  C07D263/52 ,  C08G18/7875 ,  C08G18/8061

    摘要： The present invention relates to a new organic heterocyclic isocyanate which is the reaction product of an organic diisocyanate and an amino or hydroxy nitrile. The invention also relates to a process of producing such isocyanates by reacting an excess of the diisocyanate with the nitrile under conditions under which the nitrile will not decompose and then maintaining the reaction mixture at an elevated temperature until the isocyanate nitrile adduct cyclizes. The reaction may be carried out in the presence of a catalyst for isocyanate addition reactions. Additionally, the invention relates to a process for the production of polyurethane by the reaction of the heterocyclic isocyanates with compounds carrying at least two isocyanate reactive hydrogen atoms per molecule.

    摘要翻译： 本发明涉及作为有机二异氰酸酯与氨基或羟基腈的反应产物的新的有机杂环异氰酸酯。 本发明还涉及通过使过量的二异氰酸酯与腈在腈不分解的条件下反应然后将反应混合物保持在升高的温度直到异氰酸酯加合物环化来生产这种异氰酸酯的方法。 该反应可以在用于异氰酸酯加成反应的催化剂的存在下进行。 此外，本发明涉及通过杂环异氰酸酯与每分子携带至少两个异氰酸酯反应性氢原子的化合物的反应生产聚氨酯的方法。