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    Process for producing three-dimensional objects by means of microwave radiation
    2.
    发明申请
    Process for producing three-dimensional objects by means of microwave radiation 有权
    通过微波辐射制造三维物体的方法

    公开(公告)号：US20040232583A1

    公开(公告)日：2004-11-25

    申请号：US10799874

    申请日：2004-03-15

    Applicant: DEGUSA AG

    Inventor： Sylvia Monsheimer ,  Maik Grebe ,  Franz-Erich Baumann

    IPC: H05B006/64 ,  H05B006/80 ,  B29C041/02

    CPC classification number: B29C64/153 ,  B29C64/129 ,  B29C2035/0855 ,  B33Y10/00 ,  B33Y30/00 ,  Y02P20/582

    Abstract: The present invention relates to a process for melting and adhering material to produce three-dimensional objects by means of selective heating via microwave radiation. Unlike selective laser sintering, the present process uses simple microwave radiation commonly available in any household. The selectivity of heating is achieved by applying one or more susceptors to selected regions of a layer composed of a pulverulent substrate, and then heating the susceptor by means of microwave radiation. The heated susceptor transfers the energy present therein to a pulverulent substrate surrounding the susceptor, and the substrate is thereby melted, providing firm adhesion within the substrate after cooling.

    Abstract translation: 本发明涉及通过微波辐射的选择性加热来熔化和粘附材料以产生三维物体的方法。 与选择性激光烧结不同，本方法使用任何家庭通常可用的简单微波辐射。 加热的选择性通过将一个或多个感受器施加到由粉状基底构成的层的选定区域上，然后通过微波辐射加热感受器来实现。 加热的感受器将其中存在的能量转移到围绕基座的粉状基底，从而熔化基底，在冷却之后在基底内提供牢固的粘附。

    Mixture of catenate and cyclic siloxane oligomers, its preparation and use
    3.
    发明申请
    Mixture of catenate and cyclic siloxane oligomers, its preparation and use 失效
    联苯胺和环状硅氧烷低聚物的混合物，其制备和用途

    公开(公告)号：US20030166817A1

    公开(公告)日：2003-09-04

    申请号：US10348959

    申请日：2003-01-23

    Applicant: DEGUSA AG

    Inventor： Dieter Barfurth ,  Helmut Mack

    IPC: C08G077/00

    CPC classification number: C08G77/20 ,  C08G77/045 ,  C08G77/06 ,  C09D183/04

    Abstract: The present invention provides a process for preparing a mixture, which mixture includes catenate and cyclic siloxanes of formula I R3SinullOnull(SiR2nullOnull)mSiR3 nullnull(I) and cyclic siloxanes of formula II 1 wherein m is an integer from 0 to 40 and n is an integer from 2 to 40, wherein R2 and R3 are each independently an organic functional group selected from the group including alkyl, aryl, vinyl, and alkoxy groups, and wherein there is not more than one vinyl group or aryl group per silicon atom, said process including a controlled hydrolysis, condensation or cocondensation reaction of at least one monomeric silane in alcoholic solution in the presence of an acidic catalyst, which reaction includes contacting alcohol, water, and at least one chlorosilane component selected from the group including (i), (ii), (iii): (i) at least one arylchlorosilane; (ii) at least one admixture selected from the group including alkylchlorosilane and arylchlorosilane, arylchlorosilane and vinylchlorosilane, alkylchlorosilane and vinylchlorosilane, and arylchlorosilane and vinylchlorosilane and alkylchlorosilane; (iii) at least one selected from the group including chlorosilane, alkylchlorosilane, arylchlorosilane, and vinylchlorosilane in two or more separate batches to obtain two or more separate mixtures and thereafter combining the mixtures; to form the mixture of the catenate and cyclic siloxanes. The present invention also provides the mixtures and the use of such mixtures.

    Abstract translation: 本发明提供一种制备混合物的方法，该混合物包括式I的R 3 Si-O-（SiR 2 -O-）m SiR 3（I）的链状烯烃和环状硅氧烷和式II的环状硅氧烷，其中m是0至40的整数 n为2〜40的整数，其中R2和R3各自独立地为选自烷基，芳基，乙烯基和烷氧基的有机官能团，并且其中不超过一个乙烯基或芳基 硅原子，所述方法包括在酸性催化剂存在下至少一种单体硅烷在醇溶液中的受控水解，缩合或缩聚反应，该反应包括使醇，水和至少一种选自以下的氯代硅烷组分： （i），（ii），（iii）：（i）至少一种芳基氯硅烷; （ii）至少一种选自包括烷基氯硅烷和芳基氯硅烷，芳基氯硅烷和乙烯基氯硅烷，烷基氯硅烷和乙烯基氯硅烷以及芳基氯硅烷和乙烯基氯硅烷和烷基氯硅烷的混合物; （iii）选自包括氯硅烷，烷基氯硅烷，芳基氯硅烷和乙烯基氯硅烷在内的组中的至少一种，分两批或更多批次，以获得两种或更多种分离的混合物，然后混合该混合物; 以形成链状和环状硅氧烷的混合物。 本发明还提供了这些混合物的混合物和用途。

    Deposition of a solid by thermal decomposition of a gaseous substance in a cup reactor
    8.
    发明申请
    Deposition of a solid by thermal decomposition of a gaseous substance in a cup reactor 审中-公开
    通过在杯式反应器中气态物质的热分解沉积固体

    公开(公告)号：US20040091630A1

    公开(公告)日：2004-05-13

    申请号：US10663789

    申请日：2003-09-17

    Applicant: DEGUSA AG

    Inventor： Raymund Sonnenschein

    IPC: C23C016/00

    CPC classification number: C23C16/45502 ,  C01B33/029 ,  C23C16/45563 ,  C23C16/45589 ,  Y10T137/7739

    Abstract: A process for depositing a solid (B) proceeds by targeted thermal decomposition of a gaseous substance (A). The substance (A) has a higher density than the gaseous product (C) formed during the decomposition. In the process, a device is used which has a cup (1), the base (1.1) of which is oriented in the direction of the force of gravity (g) and the opening region (1.2) of which is oriented in the opposite direction to the force of gravity (g). The cup (1) can be heated directly or indirectly by a heating, temperature-measuring and control unit (3.3). The device further contains a substance-adding unit (2) with substance feedline (3.1) and metering unit (3.2), the substance-adding unit (2) being oriented with the substance outlet (2.1) in the direction of the force of gravity (g) and projecting into the free volume of the cup (1) between the base (1.1) and opening region (1.2). The device also has a reactor casing (3) and an outlet (3.6) for gaseous product (C). The process and device are used, for example, to produce bodies of high-purity polycrystalline silicon in ingot form by controlled thermal decomposition of monosilane.

    Abstract translation: 用于沉积固体（B）的方法通过气态物质（A）的靶向热分解进行。 物质（A）具有比在分解期间形成的气态产物（C）更高的密度。 在该过程中，使用具有杯（1）的装置，其基部（1.1）在重力（g）的方向上定向，并且其开口区域（1.2）定向在相反的方向 方向到重力（g）。 杯子（1）可以通过加热，温度测量和控制单元（3.3）直接或间接加热。 该装置还包括具有物质馈线（3.1）和计量单元（3.2）的物质添加单元（2），物质添加单元（2）在重力方向上与物质出口（2.1）取向 （g）并且突出到基座（1.1）和开口区域（1.2）之间的杯子（1）的自由体积中。 该装置还具有用于气态产物（C）的反应器壳体（3）和出口（3.6）。 该方法和装置例如用于通过甲硅烷的热分解来生产锭状的高纯度多晶硅体。

    Dispersion comprising silicon/titanium mixed oxide powder, and green bodies and shaped glass articles produced therefrom
    9.
    发明申请
    Dispersion comprising silicon/titanium mixed oxide powder, and green bodies and shaped glass articles produced therefrom 有权
    包含硅/钛混合氧化物粉末的分散体，以及由其制备的生坯和成形玻璃制品

    公开(公告)号：US20030232149A1

    公开(公告)日：2003-12-18

    申请号：US10372411

    申请日：2003-02-25

    Applicant: DEGUSA AG

    Inventor： Monika Oswald ,  Klaus Deller ,  Helmut Mangold ,  Gerrit Schneider ,  Rolf Clasen ,  Markus Hornfeck

    IPC: C23C004/10

    CPC classification number: C01B33/1417 ,  C03C1/02 ,  C03C3/06 ,  C03C3/076 ,  C03C2201/42 ,  Y10S501/90

    Abstract: Aqueous dispersion comprising silicon/titanium mixed oxide powder with a BET surface area of 5 to 500 m2/g which has been prepared by flame hydrolysis and has a titanium dioxide content of 0.5 to 20 wt. %, based on the powder, water and at least one pH-regulating substance which can be removed completely from the reaction mixture on heating, the aqueous dispersion having a solids content of between 40 and 80 wt. %. A green body produced therefrom with a green density of between 40 and 85%. A shaped glass article of optical quality with a coefficient of thermal expansion of not more than 0.5null10null6/K produced from the green body.

    Abstract translation: 含有BET表面积为5〜500m 2 / g的硅/钛混合氧化物粉末的水分散体，其通过火焰水解制备，二氧化钛含量为0.5〜20重量％。 ％，基于粉末，水和至少一种pH调节物质，其可以在加热时从反应混合物中完全除去，水分散体的固体含量为40-80重量％。 ％。 由其生产的生坯，其生坯密度在40％至85％之间。 由绿色体制成的具有不大于0.5×10 -6 / K的热膨胀系数的光学品质的成形玻璃制品。

    Method for synthesis of oximes
    10.
    发明申请
    Method for synthesis of oximes 有权
    肟的合成方法

    公开(公告)号：US20040167359A1

    公开(公告)日：2004-08-26

    申请号：US10733278

    申请日：2003-12-12

    Applicant: DEGUSA AG

    Inventor： Stefan Leininger ,  Juergen Herwig ,  Martin Roos ,  Georg Oenbrink

    IPC: C07C249/04

    CPC classification number: C07C249/04 ,  C07C2601/20 ,  C07C251/44

    Abstract: An oxime is synthesized by ammoximation of a carbonyl compound. In stage (i) of the process, a carbonyl compound containing 6 to 20 C atoms is reacted with ammonia and hydrogen peroxide in the presence of a) an organic solvent that is a1) at least partly water-soluble, a2) stable under ammoximation conditions, a3) has a boiling point of higher than 100null C. and/or is capable of forming a two-phase azeotrope with water, and b) a titanium-containing heterogeneous catalyst. After the reaction, the catalyst is separated from the reaction mixture. The oxime is crystallized and separated from the reaction mixture. Water is removed from the remaining mother liquor, provided the mother liquor is a two-phase system in which one of the phases is an aqueous phase. Water or a water-containing two-phase azeotrope is distilled off from the mother liquor, while the distillation bottoms and, optionally, the predominantly organic phase of the azeotrope are recycled to stage (i).

    Abstract translation: 通过羰基化合物的肟化合成肟。 在该方法的阶段（i）中，在a）至少部分水溶性的有机溶剂存在下，使含有6-20个碳原子的羰基化合物与氨和过氧化氢反应，a2）在氨肟化下稳定 条件a3）的沸点高于100℃，和/或能够与水形成两相共沸物，和b）含钛的非均相催化剂。 反应后，将催化剂与反应混合物分离。 将肟结晶并与反应混合物分离。 如果母液是其中一相是水相的两相系统，则从剩余的母液中除去水。 从母液中蒸馏掉水或含水的两相共沸物，同时将蒸馏塔底物和任选的共沸物的主要有机相再循环至阶段（i）。

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