Method of bonding ceramic orthodontic appliances
    1.
    发明授权
    Method of bonding ceramic orthodontic appliances 失效
    粘合陶瓷矫正器具的方法

    公开(公告)号:US4820545A

    公开(公告)日:1989-04-11

    申请号:US912286

    申请日:1986-09-29

    申请人: John A. Negrych

    发明人: John A. Negrych

    摘要: A method of enhancing the bondability of ceramic orthodontic brackets or other dental attachments for improving the bonding strength between such attachments and the tooth engaging surface utilizing an intermediate bonding agent such as an acrylic resin. The method of the present invention results in the application of a silicious glass-like material coating of the bonding surface of the dental appliance. The silicious glass-like material provides three functions: (1) the proper surface chemistry for the use of organofunctional silanes that act as adhesion promoters or primers to enhance the bond between the adhesive and the orthodontic bracket; (2) a medium whereby second phase particulates can be adhered to the bracket to form irregular surface projections to enhance bonding; and (3) a surface that can be etched to yield macro and micro pitting to enhance the bond between the appliance and the intermediate bonding agent.

    摘要翻译: 一种提高陶瓷正畸托架或其他牙科附件的粘合性的方法,用于利用中间粘合剂如丙烯酸树脂改善这种附着物与齿啮合表面之间的粘结强度。 本发明的方法导致了牙科器具的粘合表面的硅玻璃状材料涂层的应用。 硅玻璃状材料提供三个功能:(1)使用有机官能硅烷作为粘合促进剂或底漆以增强粘合剂和正畸托架之间的粘合的适当的表面化学性质; (2)介质,其中第二相微粒可以粘附到支架上以形成不规则的表面突起以增强粘合; 和(3)可被蚀刻以产生宏观和微点蚀以增强器具与中间粘合剂之间的结合的表面。

    Method of manufacturing boron carbide armor tiles
    2.
    发明授权
    Method of manufacturing boron carbide armor tiles 失效
    制造碳化硼装甲砖的方法

    公开(公告)号:US4824624A

    公开(公告)日:1989-04-25

    申请号:US684930

    申请日:1984-12-17

    摘要: A method of providing fastener holes in extremely hard ceramic armor comprises the steps of:(a) providing a billet of precompacted ceramic powder material;(b) drilling the desired holes in the billet;(c) preparing a plug of non-sintering material that is chemically compatible with and has compaction characteristics similar to the ceramic powder material;(d) pressing the plugs into the billet holes;(e) hot pressing the billet and plugs at conventional temperature and pressure for manufacture of a ceramic armor structure, and;(f) removing plugs by conventional tooling or sandblasting.

    摘要翻译: 在极硬陶瓷装甲中提供紧固件孔的方法包括以下步骤:(a)提供预制的陶瓷粉末材料坯料; (b)在坯料中钻出所需的孔; (c)制备与陶瓷粉末材料具有化学相容性并具有类似陶瓷粉末材料的压实特性的非烧结材料塞; (d)将塞子压入坯料孔中; (e)以常规温度和压力热压坯料和塞子,以制造陶瓷装甲结构; (f)通过常规工具或喷砂除去堵塞物。

    Abrasive media and aqueous slurries for chemical mechanical polishing and planarization
    3.
    发明授权
    Abrasive media and aqueous slurries for chemical mechanical polishing and planarization 有权
    研磨介质和用于化学机械抛光和平面化的水性浆料

    公开(公告)号:US06334880B1

    公开(公告)日:2002-01-01

    申请号:US09454586

    申请日:1999-12-07

    IPC分类号: C09K314

    摘要: Non-spherical silica particles having nodular morphology for use as an abrasive media in chemical mechanical polishing are disclosed. Also disclosed are aqueous slurries of monodispersed non-spherical nodular shaped particles having mean effective diameters between about 100 and 300 nanometers for chemical mechanical polishing. In addition aqueous slurries for the chemical mechanical polishing and planarization of oxide dielectric, metal, and metal/metallic compound interlayers of integrated circuits are disclosed.

    摘要翻译: 公开了在化学机械抛光中用作研磨介质的具有球形形态的非球形二氧化硅颗粒。 还公开了用于化学机械抛光的具有平均有效直径在约100和300纳米之间的单分散非球形结节形颗粒的水性浆液。 此外,公开了用于集成电路的氧化物电介质,金属和金属/金属化合物夹层的化学机械抛光和平坦化的水性浆料。

    Orthodontic bracket and associated fabricating method
    4.
    发明授权
    Orthodontic bracket and associated fabricating method 失效
    正畸支架及相关制造方法

    公开(公告)号:US5078596A

    公开(公告)日:1992-01-07

    申请号:US538300

    申请日:1990-06-14

    IPC分类号: A61C7/12

    CPC分类号: A61C7/12

    摘要: An orthodontic bracket for securing orthodontic appliances to a tooth and an associated fabricating method. The orthodontic bracket (10) generally comprises a body (18) fabricated of a high strength plastic material (22) filled with an oxide particulate filler (24). In certain alternate embodiments the body (18) is further strengthened by dispersing reinforcing fibers (32) in the plastic material (22). The body (18) in certain embodiments is coated with a layer of organo-functional silane (28) and/or a high strength plastic (30) so as to resist staining and/or abrasion. The method of the present invention generally comprises filling the plastic fabricating material (22) with the oxide filler (28) and/or reinforcing fibers and/or whiskers (32) and molding the composite material into the desired bracket body configuration. The body (18) can then be coated with the desired protective abrasion and stain resistant coating (30).

    摘要翻译: 用于将牙齿矫正器具固定到牙齿上的正畸支架和相关制造方法。 正畸托架(10)通常包括由填充有氧化物颗粒填料(24)的高强度塑料材料(22)制成的主体(18)。 在某些替代实施例中,通过将增强纤维(32)分散在塑料材料(22)中来进一步加强主体(18)。 在某些实施方案中,主体(18)涂覆有一层有机官能硅烷(28)和/或高强度塑料(30),以抵抗染色和/或磨损。 本发明的方法通常包括用氧化物填充剂(28)和/或增强纤维和/或晶须(32)填充塑料制造材料(22)并将复合材料模制成所需的支架体构型。 然后可以用所需的保护性耐磨和防污涂层(30)涂覆主体(18)。