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    Device and process for spraying dental molding compound
    4.
    发明授权
    Device and process for spraying dental molding compound 失效
    用于喷涂牙科模塑料的装置和方法

    公开(公告)号：US5059121A

    公开(公告)日：1991-10-22

    申请号：US566281

    申请日：1990-08-13

    申请人： Hans H. Schulz ,  Horst Jonischkeit

    发明人： Hans H. Schulz ,  Horst Jonischkeit

    IPC分类号： A61C9/00

    CPC分类号： B05C17/00593 ,  A61C9/0026 ,  B05C17/00506

    摘要： The device for spraying on a dental impression compound consists of a cylindrical handpiece (1) with a cartridge (5), situated inside it, for the provision of the impression compound, a curved and conically tapering headpiece (3), which can be mounted on the handpiece (1) by means of a bayonet joint or screw joint (2) and has a likewise conically tapering tubular cross-section (4), and a spray nozzle which is arranged on the headpiece (3) and designed as a two-phase nozzle (9, 10, 14). The supply of the impression compound to the spray nozzle takes place by means of an elastic hosepiece (7), at the front (distal) end of which a conical or pyramidal nozzle member (9) is arranged, which has air escape openings (11). At the same time the diameter of the nozzle member (9) must be greater than the smallest diameter of the conical tubular cross-section (4). The length of the elastic hosepiece (7) is dimensioned in such a manner that it is slightly compressed when the headpiece (3 ) is mounted, so that the nozzle member base (12) is pressed with its external periphery against the conical internal contour (4) of the headpiece (3).

    摘要翻译： 用于喷涂在牙印模化合物上的装置由位于其内部的具有盒（5）的圆柱形手持件（1）组成，用于提供压印化合物，弯曲和锥形锥形头盔（3），其可安装 在手持件（1）上通过卡口接头或螺纹接头（2）并且具有同样锥形的锥形管状横截面（4）和布置在头架（3）上并被设计为两个的喷嘴 相位喷嘴（9,10,14）。 印模化合物向喷嘴的供应通过弹性对接件（7）进行，其前部（远端）处设置有锥形或金字塔形的喷嘴构件（9），其具有排气口（11） ）。 同时，喷嘴构件（9）的直径必须大于锥形管状横截面（4）的最小直径。 弹性对象（7）的长度的尺寸设计成当安装头盔（3）时被稍微压缩，使得喷嘴构件底座（12）的外缘被压靠在锥形内部轮廓上 头盔（3）的4）。

    Fixatives for dentistry and their use
    5.
    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。