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696 条记录 (耗时 0.016 秒)

    Method of coating carbon bodies
    61.
    发明公开
    Method of coating carbon bodies 失效
    Verfahren zur Beschichtung vonKohlenstoffkörpern。

    公开(公告)号：EP0368044A1

    公开(公告)日：1990-05-16

    申请号：EP89119358.3

    申请日：1989-10-18

    申请人： ETHYL CORPORATION

    发明人： Presswood, John Kenneth ,  O'Quinn, Alethea Hood

    IPC分类号： C04B41/83

    CPC分类号： C04B41/009 ,  C04B41/4842 ,  C04B41/488 ,  C04B41/83 ,  Y10T428/30 ,  Y10T428/31721 ,  C04B41/5001 ,  C04B41/52 ,  C04B35/52

    摘要： Described is a way of sealing a carbon body such as monolithic graphite tooling so that it retains its vacuum integrity through numerous thermal cycles typical of thermoplastic processing. This is accomplished by (a) applying to the body surface a coating formulation com­posed of a carbon-filled solution of a polyamic acid formed by reaction between pyromellitic acid dianhydride and a 2,2-bis[4-(aminophenoxy)phenyl]hexafluoropropane, and (b) heat curing the coated body to cause the polyamic acid to imidize into a thermally cured polyimide.

    摘要翻译： 描述了一种密封碳体的方法，例如单片石墨工具，使得其通过热塑性加工典型的许多热循环来保持其真空完整性。 这通过以下方式来实现：（a）通过将均苯四酸二酐和2,2-双[4-（氨基苯氧基）苯基]六氟丙烷之间的反应形成的聚酰胺酸的碳填充溶液组成的涂覆制剂施用于体表， 和（b）热固化涂层体，使聚酰胺酸酰亚胺化成热固化的聚酰亚胺。

    Amine deodorization
    62.
    发明公开
    Amine deodorization 失效
    Desodorierung von Aminen。

    公开(公告)号：EP0356585A1

    公开(公告)日：1990-03-07

    申请号：EP88308053.3

    申请日：1988-08-31

    申请人： ETHYL CORPORATION

    发明人： Borland, James Ellwood ,  Sauer, Joe Dean

    IPC分类号： A61L9/015

    CPC分类号： A61L9/015 ,  B01D53/72

    摘要： Malodorous aliphatic amines are deodorized by injecting nitrogen gas, preferably into the liquid phase while maintaining the liquid temperature at 30-100°C.

    摘要翻译： 恶臭脂肪族胺通过注入氮气而脱臭，优选进入液相，同时保持液体温度在30-100℃。

    Preceramic compositions and ceramic products
    63.
    发明公开
    Preceramic compositions and ceramic products 失效
    Zusammensetzungen zur Herstellung von Keramik und keramische Produkte。

    公开(公告)号：EP0341923A2

    公开(公告)日：1989-11-15

    申请号：EP89304566.6

    申请日：1989-05-05

    申请人： ETHYL CORPORATION

    发明人： Semen, John ,  Rogers, John Joseph

    IPC分类号： C04B35/58 ,  C04B35/00 ,  C08G77/62

    CPC分类号： C04B35/6316 ,  C04B35/589 ,  Y10T428/2995

    摘要： Low density silicon nitride ceramics having improved bending and specific strengths over known silicon nitride ceramics derived from silicon nitride powder and polysilazane precursors are prepared by (A) intimately mixing 50-85% by weight of silicon nitride powder with 15-50% by weight of a preceramic polysilazane binder, (B) pulverizing the mixture to form particles having a par­ticle size smaller than 105 micrometers, (C) separating from those particles any particles having a particle size larger than about 105 micrometers, (D) molding the resul­tant composition having a particle size not larger than about 105 micrometers, and (E) pyrolyzing the molded composition in an inert atmosphere to a temperature of 1200-1450°C.; said preceramic binder being at least one polysilazane prepared by reacting an organodihalosilane with ammonia, treating the ammonolysis product with a basic catalyst which is capable of deprotonating an NH group that is adjacent to an SiH group, and quenching the resultant product with an electrophilic quenching reagent.

    摘要翻译： 通过（A）将50-85重量％的氮化硅粉末与15-50重量％的氮化硅粉末充分混合，制备具有比已知的氮化硅粉末和聚硅氮烷前体的已知氮化硅陶瓷具有改进的弯曲和比强度的低密度氮化硅陶瓷 （B）粉碎混合物以形成粒度小于105微米的颗粒，（C）从颗粒中分离任何粒度大于约105微米的颗粒，（D）模塑所得组合物，其具有 颗粒尺寸不大于约105微米，和（E）在惰性气氛中将模塑组合物热解至1200-1450℃的温度; 所述预陶瓷粘合剂是通过有机二卤硅烷与氨反应制备的至少一种聚硅氮烷，用能够使邻近SiH基团的NH基团去质子化的碱性催化剂处理氨解产物，并用亲电子猝灭试剂淬灭所得产物 。

    Acrylate cured polyphosphazenes
    66.
    发明公开
    Acrylate cured polyphosphazenes 失效
    Mit Acrylatengehärtete聚磷腈。

    公开(公告)号：EP0334090A2

    公开(公告)日：1989-09-27

    申请号：EP89103893.7

    申请日：1989-03-06

    申请人： ETHYL CORPORATION

    发明人： Chang, Suae-Chen ,  de Poortere, Michael

    IPC分类号： C08G79/02 ,  C08F283/00 ,  C08F299/02

    CPC分类号： C08G79/025

    摘要： Polyorganophosphazenes having at least some N-(acryloxyhydrocarbyl)carbamyloxyhydrocarbyloxy groups:
    bonded to phosphorus, optionally together with an aliphatic or aromatic polyacrylate ester, can be cross-linked by exposure to ultraviolet radiation.

    摘要翻译： 具有至少一些N-（丙烯酰氧基烃基）氨基甲酰氧基羟基氧基的多有机膦腈：可以与脂族或芳族聚丙烯酸酯一起交联的H 2 C = CHR-C（O）OR-NH-C（O） 通过暴露于紫外线辐射。

    Preparation of silane and amine alanes
    68.
    发明公开
    Preparation of silane and amine alanes 失效
    硅烷和胺的制备硅烷和胺的制备

    公开(公告)号：EP0266758A3

    公开(公告)日：1989-06-28

    申请号：EP87116243.4

    申请日：1987-11-04

    申请人： ETHYL CORPORATION

    发明人： Marlett, Everett Michael ,  Frey, Frederick Wolff

    IPC分类号： C01B33/04

    CPC分类号： C01F7/50 ,  C01B33/043

    摘要： Process for the preparation of silane and a ter­tiary amine alane, said process comprising reacting: (a) an alkali metal tetrahydride having the for­mula MAlH₄, wherein M is an alkali metal selected from the class consisting of lithium, sodium and potassium, (b) silicon tetrachloride, and (c) a complexing tertiary amine, such that the molar proportion of (a) to (b) to (c) is 4:1:4. In this process, NaAlH₄ and triethylamine are pre­ferred reactants. The amine alane product can be reacted with additional silicon halide to prepare additional silane. This step can be conducted utilizing amine alane in the reaction mixture produced by the process above, and is preferably con­ducted using SiF₄ as the silicon tetrahalide to produce AlF₃ as a co-product. Both AlF₃ and silane are valuable articles of commerce.

    Silane production from magnesium hydride
    69.
    发明公开
    Silane production from magnesium hydride 失效
    Herstellung von Silan aus Magnesiumhydrid。

    公开(公告)号：EP0316472A1

    公开(公告)日：1989-05-24

    申请号：EP87116994.2

    申请日：1987-11-17

    申请人： ETHYL CORPORATION

    发明人： Marlett, Everett Michael ,  McKinnie, Bonnie Gary

    IPC分类号： C01B33/04 ,  C01B6/04

    CPC分类号： C01D3/04 ,  C01B6/04 ,  C01B33/043 ,  C01D3/00

    摘要： A process for producing silane by reacting a silicon halide with highly reactive magnesium hydride and a cyclic process for producing silane by reacting mag­nesium hydride with a silicon halide, reacting the magnesium halide co-product with an alkali metal to recover elemental magnesium, and pressure hydrogenating said magnesium to form magnesium hydride and repeat the cycle. A highly reactive magnesium hydride is formed by the homogeneously catalyzed pressure hydrogenation of magnesium, preferably using an activated transition metal catalyst such as TiCl₄ and a polycyclic organic compound such as anthracene. The highly activated magnesium hydride is thereafter used for reaction with silicon halide to produce silane.

    摘要翻译： 通过使卤化硅与高反应性氢化镁反应制备硅烷的方法和通过使氢化镁与卤化硅反应制备硅烷的循环方法，使卤化镁副产物与碱金属反应以回收元素镁，并加压氢化 说镁形成氢化镁并重复循环。 通过镁的均匀催化压力氢化形成高反应性氢化镁，优选使用活化的过渡金属催化剂如TiCl 4和多环有机化合物如蒽形成。 此后，使用高活性氢化镁与卤化硅反应生成硅烷。