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    Laser-sintering powder with PMMI, PMMA, and/or PMMI-PMMA copolymers, process for its preparation, and moldings produced from this laser-sintering powder
    1.
    发明授权
    Laser-sintering powder with PMMI, PMMA, and/or PMMI-PMMA copolymers, process for its preparation, and moldings produced from this laser-sintering powder 有权
    具有PMMI，PMMA和/或PMMI-PMMA共聚物的激光烧结粉末，其制备方法和由该激光烧结粉末制备的模制品

    公开(公告)号：US07135525B2

    公开(公告)日：2006-11-14

    申请号：US10799875

    申请日：2004-03-15

    申请人： Christoph Petter ,  Maik Grebe ,  Sylvia Monsheimer ,  Franz-Erich Baumann

    发明人： Christoph Petter ,  Maik Grebe ,  Sylvia Monsheimer ,  Franz-Erich Baumann

    IPC分类号： C08L77/00 ,  C08L33/00 ,  C08L35/00 ,  B29C35/08

    CPC分类号： C08L33/12 ,  B29C64/153 ,  B29K2033/12 ,  B29K2077/00 ,  B33Y70/00 ,  C08L33/00 ,  C08L33/24 ,  C08L77/00 ,  Y10T428/2982 ,  C08L2666/20 ,  C08L2666/04

    摘要： The present invention relates to a sinter powder composed of polyamide which also comprises PMMI, PMMA, or copolymers with PMMI, in particular PMMI-PMMA copolymers, to the use of this sinter powder for laser-sintering, and also to moldings produced from this sinter powder. The moldings made from the powder of the invention have marked advantages over conventional products in their appearance and in their surface quality, especially as far as roughness and dimensional stability during selective laser sintering (SLS) are concerned. In addition, moldings produced from the sinter powder of the invention also have better mechanical properties than moldings based on conventional nylon-12 powders, in particular in terms of modulus of elasticity and tensile strength. These moldings also have a density close to that of injection moldings.

    摘要翻译： 本发明涉及一种由聚酰胺组成的烧结粉末，其也包括PMMI，PMMA或与PMMI的共聚物，特别是PMMI-PMMA共聚物，用于该烧结粉末用于激光烧结，以及由该烧结体制成的模制品 粉末。 由本发明的粉末制成的模制品在其外观和表面质量方面具有显着的优点，特别是在选择性激光烧结（SLS）期间的粗糙度和尺寸稳定性方面。 此外，由本发明的烧结粉末制成的模制品也具有比基于常规尼龙-12粉末的模制品更好的机械性能，特别是在弹性模量和拉伸强度方面。 这些模制品的密度也接近注射成型品。