POLYMER POWDER WITH MODIFIED MELTING BEHAVIOUR
    4.
    发明申请
    POLYMER POWDER WITH MODIFIED MELTING BEHAVIOUR 审中-公开
    具有改性熔融行为的聚合物粉末

    公开(公告)号:US20130274435A1

    公开(公告)日:2013-10-17

    申请号:US13859896

    申请日:2013-04-10

    IPC分类号: C08G69/26 C08G69/28 B29C67/00

    摘要: The present invention provides precipitated polymer powders based on a polyamide of the AABB type, obtained by the reprecipitation of the polyamides by at least partial dissolution followed by continuous cooling of the solution to below the precipitation temperature. The polyamides are prepared by polycondensation of diamines with dicarboxylic acids. The precipitated polyamides obtained are used in layer-by-layer shaping processes such as selective laser sintering.

    摘要翻译: 本发明提供了基于AABB型聚酰胺的沉淀聚合物粉末,其通过至少部分溶解再次沉淀而获得,随后将溶液连续冷却至低于沉淀温度。 聚酰胺通过二胺与二羧酸的缩聚制备。 所得到的沉淀聚酰胺用于逐层成型方法如选择性激光烧结。

    APPARATUS FOR REDUCING THE SIZE OF THE LOWER CONSTRUCTION CHAMBER OF A LASER SINTERING INSTALLATION
    8.
    发明申请
    APPARATUS FOR REDUCING THE SIZE OF THE LOWER CONSTRUCTION CHAMBER OF A LASER SINTERING INSTALLATION 审中-公开
    用于减少激光烧结安装的下部结构室的尺寸的装置

    公开(公告)号:US20110252618A1

    公开(公告)日:2011-10-20

    申请号:US13086860

    申请日:2011-04-14

    IPC分类号: B23P19/04

    摘要: An apparatus for the reduction in size of the lower construction chamber of a laser sintering installation is provided. Also provided is a method to reduce the size of the lower construction chamber of a laser sintering installation by insertion of the apparatus of the invention. The invention thereby provides for reduction in the demand for material for specific laser sintering requirements. In addition, a new degree of sintering process control is obtained when the apparatus contains heating or cooling units.

    摘要翻译: 提供了一种用于激光烧结装置的下部结构室的尺寸减小的装置。 还提供了通过插入本发明的装置来减小激光烧结装置的下部结构室的尺寸的方法。 因此,本发明可减少对特定激光烧结要求的材料的需求。 此外,当设备包含加热或冷却单元时,获得新的烧结过程控制程度。