Methods for fabricating shapes by use of organometallic ceramic
precursor binders
    1.
    发明授权
    Methods for fabricating shapes by use of organometallic ceramic precursor binders 失效
    通过使用有机金属陶瓷前体粘合剂制造形状的方法

    公开(公告)号:US5884688A

    公开(公告)日:1999-03-23

    申请号:US535121

    申请日:1995-10-26

    CPC分类号: B22C1/205

    摘要: This invention relates to the discovery of organometallic ceramic precursor binders used to fabricate shaped bodies by different techniques. Exemplary shape making techniques which utilize hardenable, liquid, organometallic, ceramic precursor binders include the fabrication of negatives of parts to be made (e.g., sand molds and sand cores for metalcasting, etc.), as well as utilizing ceramic precursor binders to make shapes directly (e.g., brake shoes, brake pads, clutch parts, grinding wheels, polymer concrete, refractory patches and liners, etc.). In a preferred embodiment, this invention relates to thermosettable, liquid ceramic precursors which provide suitable-strength sand molds sand cores at very low binder levels and which, upon exposure to molten metalcasting exhibit low emissions toxicity as a result of their high char yields of ceramic upon exposure to heat.

    摘要翻译: PCT No.PCT / US94 / 04806 Sec。 371 1995年10月26日第 102(e)日期1995年10月26日PCT 1994年4月28日PCT PCT。 第WO94 / 25199号公报 日期1994年11月10日本发明涉及用于通过不同技术制造成型体的有机金属陶瓷前体粘合剂的发现。 使用可硬化,液体,有机金属,陶瓷前体粘合剂的示例性形状制造技术包括制造要制备的部件的负片(例如,用于金属铸造的砂模和砂芯等),以及利用陶瓷前体粘合剂来形成形状 直接(例如制动蹄,刹车片,离合器部件,砂轮,聚合物混凝土,耐火贴片和衬垫等)。 在优选的实施方案中,本发明涉及可热固化的液体陶瓷前体,它们以非常低的粘合剂含量提供合适的强度砂模砂芯,并且在暴露于熔融金属铸造之后,由于其高的焦炭产率的陶瓷 暴露于热后。

    Methods for fabricating shapes by use of organometallic, ceramic
precursor binders
    2.
    发明授权
    Methods for fabricating shapes by use of organometallic, ceramic precursor binders 失效
    通过使用有机金属,陶瓷前体粘合剂制造形状的方法

    公开(公告)号:US5641817A

    公开(公告)日:1997-06-24

    申请号:US482698

    申请日:1995-06-07

    IPC分类号: B22C1/20 B22D19/14

    CPC分类号: B22C1/205 Y10T428/12042

    摘要: This invention relates to the discovery of organometallic ceramic precursor binders used to fabricate shaped bodies by different techniques. Exemplary shape making techniques which utilize hardenable, liquid, organometallic, ceramic precursor binders include the fabrication of negatives of parts to be made (e.g., sand molds and sand cores for metalcasting, etc.), as well as utilizing ceramic precursor binders to make shapes directly (e.g., brake shoes, brake pads, clutch parts, grinding wheels, polymer concrete, refractory patches and liners, etc.). In a preferred embodiment, this invention relates to thermosettable, liquid ceramic precursors which provide suitable-strength sand molds and sand cores at very low binder levels and which, upon exposure to molten metalcasting exhibit low emissions toxicity as a result of their high char yields of ceramic upon exposure to heat. Another preferred embodiment of the invention involves the fabrication of preforms used in the formation of composite articles.

    摘要翻译: 本发明涉及用于通过不同技术制造成形体的有机金属陶瓷前体粘合剂的发现。 使用可硬化,液体,有机金属,陶瓷前体粘合剂的示例性形状制造技术包括制造要制备的部件的负片(例如,用于金属铸造的砂模和砂芯等),以及利用陶瓷前体粘合剂来形成形状 直接(例如制动蹄,刹车片,离合器部件,砂轮,聚合物混凝土,耐火贴片和衬垫等)。 在一个优选的实施方案中,本发明涉及可热固的液体陶瓷前体,它们以非常低的粘合剂水平提供合适的强度砂模和砂芯,并且在暴露于熔融金属铸造之后,由于它们的高焦炭产率, 陶瓷暴露于热量。 本发明的另一个优选实施例涉及制造用于形成复合制品的预成型件。

    Metal-nitrogen polymer compositions comprising organic electrophiles
    6.
    发明授权
    Metal-nitrogen polymer compositions comprising organic electrophiles 失效
    包含有机亲电体的金属 - 氮聚合物组合物

    公开(公告)号:US5733997A

    公开(公告)日:1998-03-31

    申请号:US477210

    申请日:1995-06-07

    摘要: The compositions of this invention comprise uncrosslinked reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one metal-containing polymer comprising a metal-nitrogen polymer.Preferred compositions of this invention comprise reaction mixtures comprising (1) at least one organic monomer, oligomer or polymer comprising a multiplicity of organic, electrophilic substituents, and (2) at least one of: silicon-nitrogen polymers, aluminum-nitrogen polymers and boron-nitrogen and polymer combinations thereof comprising a multiplicity of sequentially bonded repeat units the compositions comprising the reaction products of the reaction mixtures, and the compositions obtained by crosslinking the reaction products of the reaction mixtures. The crosslinking may be effected through at least one of thermal-based, radiation-based free radical-based or ionic-based crosslinking mechanisms. Furthermore, the reaction mixtures, the composition comprising the reaction products and the crosslinked composition may further comprise at least one filler or reinforcement. The composition may be molded or shaped by various techniques into numerous useful articles. Furthermore, the compositions may be applied as coatings by various techniques onto numerous articles to enhance the articles usefulness.

    摘要翻译: 本发明的组合物包含未交联的反应混合物,其包含(1)至少一种包含多个有机亲电子取代基的有机单体,低聚物或聚合物,和(2)包含金属 - 氮聚合物的至少一种含金属聚合物。 本发明的优选组合物包含反应混合物,其包含(1)至少一种有机单体,低聚物或包含多个有机亲电取代基的聚合物,和(2)至少一种:硅 - 氮聚合物,铝 - 氮聚合物和硼 - 氮和聚合物组合,其包含多个顺序键合的重复单元,所述组合物包含反应混合物的反应产物,以及通过使反应混合物的反应产物交联而获得的组合物。 交联可以通过基于热的,基于辐射的基于自由基或基于离子的交联机理中的至少一种进行。 此外,反应混合物,包含反​​应产物和交联组合物的组合物还可包含至少一种填料或增强剂。 组合物可以通过各种技术模塑或成型成许多有用的制品。 此外,组合物可以通过各种技术涂覆到许多制品上以增强制品的用途。