Apparatus and methods for handling materials in a 3-D printer
    1.
    发明申请
    Apparatus and methods for handling materials in a 3-D printer 审中-公开
    用于在三维打印机中处理材料的设备和方法

    公开(公告)号:US20080047628A1

    公开(公告)日:2008-02-28

    申请号:US11807325

    申请日:2007-05-25

    IPC分类号: B65B1/04

    摘要: The present invention is directed towards methods and apparatus for handling powder in a 3D printer. The invention includes a means of transporting powder from multiple sources to a powder dispensing apparatus with minimal user intervention, thus reducing contamination of the 3D printer and surrounding area with loose powder, while also providing a means of improving the recycling of powder for re-use.

    摘要翻译: 本发明涉及在3D打印机中处理粉末的方法和设备。 本发明包括以最少的用户干预将粉末从多个来源输送到粉末分配装置的方法,从而减少三维打印机和周围区域用粉末粉末的污染,同时还提供了改善粉末再循环再利用的手段 。

    PROCESS FOR THE PREPARATION OF FLUOROTETRAENE
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF FLUOROTETRAENE 有权
    制备荧光素的方法

    公开(公告)号:US20080234506A1

    公开(公告)日:2008-09-25

    申请号:US12052852

    申请日:2008-03-21

    IPC分类号: C07J5/00

    CPC分类号: C07J5/00

    摘要: There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.

    摘要翻译: 提供了制备式I的21-乙酰氧基-6-α-氟 - 前 - 1,4,9(11),16-四烯-3,20-二酮化合物的方法,该方法包括使21-乙酰氧基 - 前 - -1,3,5,9(11),16-戊烯-3-氧代乙酸酯与氟化剂。

    Process for the preparation of fluorotetraene
    3.
    发明授权
    Process for the preparation of fluorotetraene 有权
    氟代四烯的制备方法

    公开(公告)号:US08049021B2

    公开(公告)日:2011-11-01

    申请号:US12052852

    申请日:2008-03-21

    IPC分类号: C07J5/00

    CPC分类号: C07J5/00

    摘要: There is provided a process for preparing 21-acetyloxy-6-alpha-fluoro-pregna-1,4,9(11),16-tetraene-3,20-dione compound of Formula I, which comprises reacting 21-acetyloxy-pregna-1,3,5,9(11),16-pentaene-3-oxo acetate with a fluorinating agent.

    摘要翻译: 提供了制备式I的21-乙酰氧基-6-α-氟 - 前 - 1,4,9(11),16-四烯-3,20-二酮化合物的方法,该方法包括使21-乙酰氧基 - 前 - -1,3,5,9(11),16-戊烯-3-氧代乙酸酯与氟化剂。