Methods for fabricating shapes by use of organometallic, ceramic
precursor binders
    3.
    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:US5433261A

    公开(公告)日:1995-07-18

    申请号:US121814

    申请日:1993-09-15

    IPC分类号: B22C1/10 B22C1/20 B22D19/14

    CPC分类号: B22C1/205

    摘要: Organometallic ceramic precursor binders are 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.). A preferred embodiment of the invention involves the fabrication of preforms used in the formation of composite articles.

    摘要翻译: 有机金属陶瓷前体粘合剂用于通过不同的技术制造成形体。 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)。 本发明的优选实施例涉及制造用于形成复合制品的预成型件。

    Polymeric dye compounds and compositions and methods for coloring hair
    6.
    发明授权
    Polymeric dye compounds and compositions and methods for coloring hair 失效
    聚合染料化合物和头发着色的组合物和方法

    公开(公告)号:US06306182B1

    公开(公告)日:2001-10-23

    申请号:US09523262

    申请日:2000-03-10

    IPC分类号: A61K713

    摘要: A compound of the formula: wherein: n, y, and z are each independently integers ranging from 1 to 100,000; R1 through R6, and R8 are each independently H, C1-6 alkyl, hydroxyalkyl, substituted or unsubstituted aminoalkyl; or R4 and R5 together form a substituted or unsubstituted heterocyclic 5 to 6 membered ring wherein the substituents are selected from C1-6 alkyl, hydroxyalkyl, or aminoalkyl; R7 is H or SR1, or S—R7 in the above formula together form an isothiouronium salt or Bunte salt; X is a linking group; and D is a chromophore that absorbs visible light; hair dye compositions containing the polymeric compound; and a method for dyeing hair.

    摘要翻译: 下式的化合物:其中:n,y和z各自独立地为1至100,000的整数; R 1至R 6和R 8各自独立地为H,C 1-6烷基,羟基烷基,取代或未取代的氨基烷基; 或R4和R5一起形成取代或未取代的杂环5至6元环,其中取代基选自C 1-6烷基,羟基烷基或氨基烷基; R 7是上式中的H或SR 1或S-R 7一起形成异硫脲 盐或e盐; X为连接基团; D是吸收可见光的发色团; 含有聚合物的染发剂组合物; 和染发方法。

    Methods for fabricating shapes by use of organometallic ceramic
precursor binders
    8.
    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
    9.
    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。

    Reaction injection molding of silicon nitride ceramics having
crystallized grain boundary phases
    10.
    发明授权
    Reaction injection molding of silicon nitride ceramics having crystallized grain boundary phases 失效
    具有结晶晶界相的氮化硅陶瓷的反应注射成型

    公开(公告)号:US5389588A

    公开(公告)日:1995-02-14

    申请号:US114268

    申请日:1993-08-30

    摘要: A sintered, Si.sub.3 N.sub.4 -containing ceramic article is prepared by a reaction injection molding process comprising (1) injecting into a heated mold a fluid, nondilatant mixture of (a) at least 40% by volume of a powder mixture of (i) Si.sub.3 N.sub.4, (ii) a silicate glass-forming sintering aid and (iii) a high metal content silicide, and (b) a curable Si.sub.3 N.sub.4 precursor binder, to cure the binder and produce a hardened molded article, and (2) heating the molded article under a suitable atmosphere to convert the cured binder to a Si.sub.3 N.sub.4 -containing ceramic. The molded article is then sintered under a vacuum to crystallize the silicate glass phase by deoxygenation.

    摘要翻译: 通过反应注射成型方法制备烧结的含Si 3 N 4的陶瓷制品,所述反应注射成型方法包括(1)向加热的模具中注入(a)至少40体积%的(i)Si 3 N 4的粉末混合物的流体非脱溶剂混合物, (ii)硅酸盐玻璃形成烧结助剂和(iii)高金属含量硅化物,和(b)可固化Si 3 N 4前体粘合剂,以固化粘合剂并制备硬化的模制品,和(2)加热下面的模塑制品 将固化的粘合剂转化为含Si 3 N 4的陶瓷的合适气氛。 然后将模制品在真空下烧结以通过脱氧使硅酸盐玻璃相结晶。