Polymer powder with phosphonate-based flame retardant, process for its production, and moldings produced from this polymer powder
    2.
    发明授权
    Polymer powder with phosphonate-based flame retardant, process for its production, and moldings produced from this polymer powder 有权
    具有膦酸酯类阻燃剂的聚合物粉末,其生产方法,以及由该聚合物粉末制成的模制品

    公开(公告)号:US07317044B2

    公开(公告)日:2008-01-08

    申请号:US10892092

    申请日:2004-07-16

    IPC分类号: C08K9/10 C08K5/5333

    摘要: The present invention relates to a polymer powder composed of polyamide or of copolyamides, which also comprises flame retardant, in particular phosphonates, to a layer-by-layer process which selectively melts regions or selectively binds them, and also to moldings produced from this polymer powder. Compared with conventional products, the moldings constructed using the powder of the invention exhibit marked advantages in flammability and combustibility and drop behavior, particularly with respect to UL® (Underwriters Laboratories) classification. Furthermore, moldings produced from polymer powder of the invention have adequately good mechanical properties when compared with moldings based on polymer powders without flame retardant, in particular in terms of modulus of elasticity and tensile strain at break. In addition, these moldings also have a density close to that of injection moldings.

    摘要翻译: 本发明涉及由聚酰胺或共聚酰胺组成的聚合物粉末,其还包含阻燃剂,特别是膦酸盐,其选择性地熔融区域或选择性地结合它们的层压方法,以及由该聚合物制备的模制品 粉末。 与常规产品相比,使用本发明粉末构造的模制品在可燃性和可燃性和降落行为方面表现出显着的优点,特别是在UL(R)(Underwriters Laboratories)分类方面。 此外,与基于不具有阻燃剂的聚合物粉末的模制品相比,特别是在弹性模量和断裂拉伸应变方面,与本发明的聚合物粉末制备的模制品相比具有足够好的机械性能。 此外,这些模制品的密度也接近注射成形品。

    Process for the production of moldings
    7.
    发明授权
    Process for the production of moldings 有权
    生产模具的工艺

    公开(公告)号:US08865053B2

    公开(公告)日:2014-10-21

    申请号:US11596365

    申请日:2005-03-21

    摘要: The present invention relates to a polymer powder which comprises nylon-11, and to the use of this powder for shaping processes, and also to moldings produced from this polymer powder.The shaping processes are layer-by-layer processes which use powders, where regions of the respective layer are selectively melted via introduction of electromagnetic energy. The selectivity may—with no intention of restricting the invention thereto—be achieved via masks, application of inhibitors, of absorbers, or of susceptors, or via focusing of the energy introduced. After cooling, the regions then solidified can be removed in the form of moldings from the powder bed.Compared with moldings composed of conventional powders, the moldings constructed using the inventive powder by one of the inventive processes exhibit marked advantages in terms of component properties, particularly surface finish. There are also improvements here in processing and in recycling capability when comparison is made with conventional polyamide powders.

    摘要翻译: 本发明涉及包含尼龙-11的聚合物粉末,以及该粉末用于成型过程的用途,以及由该聚合物粉末制成的模制品。 成型过程是使用粉末的逐层工艺,其中各层的区域通过引入电磁能被选择性地熔化。 选择性可以 - 不意图限制本发明 - 通过掩模,抑制剂,吸收剂或感受器的应用,或通过所引入的能量的聚焦来实现。 冷却后,固化的区域可以从粉末床以模制品的形式除去。 与由常规粉末组成的模制品相比,使用本发明方法的本发明粉末构造的模制品在组分性能,特别是表面光洁度方面表现出显着的优点。 当与常规聚酰胺粉末进行比较时,在加工和再循环能力方面也有改进。