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    Organoborosilazane polymers
    41.
    发明授权
    Organoborosilazane polymers 失效
    有机硼硅烷聚合物

    公开(公告)号：US5045399A

    公开(公告)日：1991-09-03

    申请号：US242493

    申请日：1988-09-09

    Applicant: Leonard M. Niebylski

    Inventor： Leonard M. Niebylski

    IPC: C04B35/589 ,  C04B41/50 ,  C04B41/87 ,  C08G77/60 ,  C08G79/08

    CPC classification number: C04B35/589 ,  C04B41/507 ,  C04B41/87 ,  C08G77/60 ,  C08G79/08 ,  Y10T428/30 ,  Y10T428/31663

    Abstract: Preceramic polymers which have particular utility in providing protective ceramic coatings on carbon/carbon composites, graphite, carbon fibers, and other normally oxidizable materials are prepared by reacting about 0.25-20 parts by weight of a trialkyl- or trialkoxyboroxine in which the alkyl or alkoxy groups contain 1-6 carbons with one part by weight of a poly-silazane to form an organoborosilazane polymer.

    Abstract translation: 在碳/碳复合材料，石墨，碳纤维和其他通常可氧化材料上提供保护性陶瓷涂层具有特殊用途的前陶瓷聚合物通过使约0.25-20重量份的三烷基 - 或三烷氧基环硼氧烷反应制备，其中烷基或烷氧基 基团含有1-6个碳原子和1重量份的聚硅氮烷以形成有机硼硅氮烷聚合物。

    Controlled polymerization of silazane monomers
    42.
    发明授权
    Controlled polymerization of silazane monomers 失效
    硅氮烷单体的控制聚合

    公开(公告)号：US5037933A

    公开(公告)日：1991-08-06

    申请号：US421944

    申请日：1989-10-16

    Applicant: Jean-Jacques Lebrun ,  Charles Bobichon

    Inventor： Jean-Jacques Lebrun ,  Charles Bobichon

    IPC: D01F9/10 ,  C04B35/571 ,  C04B35/589 ,  C08G77/48 ,  C08G77/62

    CPC classification number: C08G77/62 ,  C04B35/571 ,  C04B35/589

    Abstract: Organopolysilazanes or organopoly(disilyl)-silazanes having controlled physicochemical properties, well adapted for shaping and pyrolysis into useful ceramic articles, are prepared by catalytically polymerizing a silazane monomer to a desired degree of polymerization, and then, either during or upon completion of polymerization, contacting the polymerization reaction medium with at least one ion exchange material.

    Abstract translation: 具有受控物理化学性质的有机聚硅氮烷或有机（二甲硅烷基） - 硅氮烷通过将硅氮烷单体催化聚合至所需聚合度而制备，其适于成型和热解成有用的陶瓷制品，然后在聚合期间或完成后， 使聚合反应介质与至少一种离子交换材料接触。

    Polymeric ethylene-bridged chlorosilazanes, process for their preparation, ceramic materials which can be prepared from them containing silicon nitride, and their preparation
    43.
    发明授权
    Polymeric ethylene-bridged chlorosilazanes, process for their preparation, ceramic materials which can be prepared from them containing silicon nitride, and their preparation 失效
    聚合乙烯桥接氯硅氮烷，其制备方法，可由其制备含有氮化硅的陶瓷材料及其制备方法

    公开(公告)号：US5011801A

    公开(公告)日：1991-04-30

    申请号：US444816

    申请日：1989-11-30

    Applicant: Tilo Vaahs ,  Marcellus Peuckert ,  Martin Bruck

    Inventor： Tilo Vaahs ,  Marcellus Peuckert ,  Martin Bruck

    IPC: C04B35/589 ,  C08G77/48 ,  C08G77/60 ,  C08G77/62 ,  D01F9/10

    CPC classification number: C08G77/60 ,  C04B35/589

    Abstract: Polymeric ethylene-bridged chlorosilazanes, process for their preparation, ceramic materials which can be prepared from them containing silicon nitride, and their preparationThe invention relates to novel polymeric ethylene-bridged chlorosilazanes, their preparation, their further processing to a ceramic material containing silicon nitride, and this material itself. In order to prepare the polymeric chlorosilazanes, oligosilazanes of the formula (I) ##STR1## are reacted with at least one of the chlorosilanes ##STR2## in which R.sup.1 to R.sup.5 are C.sub.1 -C.sub.6 -alkyl or C.sub.2 -C.sub.6 -alkenyl groups, which may be identical or different.The polymeric chlorosilazanes according to the invention can be converted by reaction with ammonia into polysilazanes, which in their turn can be pyrolysed to ceramic materials containing silicon nitride.

    Abstract translation: 聚合乙烯桥接的氯硅氮烷，其制备方法，可由它们制备的含氮化硅的陶瓷材料及其制备本发明涉及新型聚合物乙烯桥连氯硅氮烷，其制备方法，它们进一步加工成含有氮化硅的陶瓷材料 ，这个材料本身。 为了制备聚合氯硅氮烷，式（I）的寡硅氮烷（I）与至少一种氯代硅烷（IMAGE）反应，其中R 1至R 5为C 1 -C 6 - 烷基或C 2 -C 6 - 烯基 组可以相同或不同。 根据本发明的聚合氯硅氮烷可以通过与氨的反应转化成聚硅氮烷，聚硅氮烷又可以热解成含有氮化硅的陶瓷材料。

    Process for producing organic products containing silicon, hydrogen, nitrogen, and carbon by the direct reaction between elemental silicon and organic amines
    49.
    发明授权
    Process for producing organic products containing silicon, hydrogen, nitrogen, and carbon by the direct reaction between elemental silicon and organic amines 失效
    通过元素硅和有机胺之间的直接反应生产含有硅，氢，氮和碳的有机产物的方法

    公开(公告)号：US4914063A

    公开(公告)日：1990-04-03

    申请号：US177270

    申请日：1988-04-04

    Applicant: Eloise A. Pugar ,  Peter E. D. Morgan

    Inventor： Eloise A. Pugar ,  Peter E. D. Morgan

    IPC: C01B21/068 ,  C01B31/36 ,  C04B35/571 ,  C04B35/589 ,  C08G77/48 ,  C08G77/60 ,  C08G77/62 ,  C30B29/62

    CPC classification number: C08G77/60 ,  C04B35/571 ,  C04B35/589 ,  C08G77/62

    Abstract: A process is disclosed for producing, at a low temperature, a high purity organic reaction product consisting essentially of silicon, hydrogen, nitrogen, and carbon. The process comprises reacting together a particulate elemental high purity silicon with a high purity reactive amine reactant in a liquid state at a temperature of from about 0.degree. C. up to about 300.degree. C. A high purity silicon carbide/silicon nitride ceramic product can be formed from this intermediate product, if desired, by heating the intermediate product at a temperature of from about 1200.degree.-1700.degree. C. for a period from about 15 minutes up to about 2 hours or the organic reaction product may be employed in other chemical uses.

    Abstract translation: 公开了一种在低温下生产基本上由硅，氢，氮和碳组成的高纯度有机反应产物的方法。 该方法包括使微粒元素高纯度硅与液体状态下的高纯度反应性胺反应物在约0℃至约300℃的温度下反应。高纯度碳化硅/氮化硅陶瓷产物可以 由该中间产物形成，如果需要，通过在约1200-170℃的温度下加热中间产物约15分钟至约2小时的时间，或者有机反应产物可用于其它 化学用途。

    Process for catalytic treatment of a polysilazane containing on average at least two hydrocarbon groups having aliphatic unsaturation per molecule
    50.
    发明授权
    Process for catalytic treatment of a polysilazane containing on average at least two hydrocarbon groups having aliphatic unsaturation per molecule 失效
    用于催化处理含有平均每分子具有脂肪族不饱和键的至少两个烃基的聚硅氮烷的方法

    公开(公告)号：US4866149A

    公开(公告)日：1989-09-12

    申请号：US935926

    申请日：1986-11-28

    Applicant: Jean-Jacque Lebrun ,  Hugues Porte

    Inventor： Jean-Jacque Lebrun ,  Hugues Porte

    IPC: C04B35/589 ,  C08G77/48 ,  C08G77/62 ,  C08L83/16

    CPC classification number: C08L83/16 ,  C04B35/589 ,  C08G77/62

    Abstract: A process for treating a polysilazane, characterized in that a polysilazane possessing on average at least two, and preferably at least three, hydrocarbon groups having aliphatic unsaturation per molecule is treated catalytically in the presence of a catalytically efficient amount of a co-ordination catalyst. The polysilazanes treated in this manner possess high thermal resistance and can be used, in particular, as precursors of ceramic products, with a high yield of inorganic product.

    Abstract translation: 一种聚硅氮烷的处理方法，其特征在于，在催化有效量的配位催化剂的存在下，催化剂处理平均具有至少两个，优选至少三个具有每分子具有脂肪族不饱和键的烃基的聚硅氮烷。 以这种方式处理的聚硅氮烷具有高耐热性，并且可以特别用作陶瓷产品的前体，具有高产率的无机产物。

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