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    • 65. 发明公开
    • POLYMERPULVER AUF DER BASIS VON POLYAMIDEN, VERWENDUNG IN EINEM FORMGEBENDEN VERFAHREN UND FORMKÖRPER, HERGESTELLT AUS DIESEM POLYMERPULVER
    • 基于聚合物粉末,在窗体成像和模塑获得由该聚合物粉末
    • EP2556115A1
    • 2013-02-13
    • EP11714254.7
    • 2011-04-06
    • Evonik Degussa GmbH
    • BAUMANN, Franz-ErichDIEKMANN, WolfgangKÜTING, BeatriceSTEMMER, HeikeGREBE, MaikWARNKE, KristianeMONSHEIMER, SylviaHÄGER, Harald
    • C08L77/02C08L77/06B29C67/00
    • B29C64/106B29C64/153B33Y70/00C08L77/02C08L77/06C08L2205/02C09D5/03Y10T428/2982
    • The invention relates to a polymer powder for use in a layer-by-layer method in which areas of each powder layer are selectively fused by introducing electromagnetic energy. Said polymer powder contains: at least one AB-type polyamide produced by polymerizing lactams comprising 10 to 12 carbon atoms in the monomer unit or polycondensing the corresponding ω-amino carboxylic acids comprising 10 to 12 carbon atoms in the monomer unit and at least one AABB-type polyamide produced by polycondensing diamines and dicarboxylic acids, each of which comprises 10 to 14 carbon atoms in the monomer units, the AB-type polyamide containing up to 20 mole % of the AABB comonomer units and the AABB-type polyamide containing up to 20 mole % of the AB monomer units. The invention also relates to a method for producing such a powder, a layer-by-layer method for producing a molded article from such a powder in which areas of each layer are selectively fused by introducing electromagnetic energy, the selectivity being obtained using masks or by applying inhibitors, absorbers or susceptors or focusing the applied energy, and molded articles produced in said manner.
    • 本发明涉及一种用于在层 - 层方法中使用的聚合物粉末,其中每种粉末层的区域通过引入电磁能选择性地稠合。 所述聚合物粉末含有:通过聚合内酰胺的单体单元,其包括10至12个碳原子或缩聚相应ω氨基羧酸中的单体单元,其包括10至12个碳原子和至少一个AABB产生的至少一种AB型聚酰胺 由缩聚二胺和二羧酸,其中的每一个中的单体单元包含10至14个碳原子产生的型聚酰胺,AB型聚酰胺含有至多AABB共聚单体单元的20摩尔%,并且AABB型聚酰胺含有最多 的AB单体单元的20摩尔%。 所以,本发明涉及一种用于制造寻求粉末,层 - 层用于从寻求在每一层的哪个区域的粉末的模塑制品的方法通过引入电磁能选择性地稠合的,使用掩膜而获得的选择性或 通过施加抑制剂,吸收剂或感受器或聚焦所施加的能量,并成型以所述方式制备的制品。