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    • 2. 发明申请
    • Manufacturing Process, Such as Three-Dimensional Printing, Including Solvent Vapor Filming and the Like
    • 制造工艺,如三维印刷,包括溶剂蒸气成膜等
    • US20080032083A1
    • 2008-02-07
    • US11579783
    • 2005-05-12
    • James SerdyEmanuel Sachs
    • James SerdyEmanuel Sachs
    • G03C1/00
    • A61L27/56A61F2/28A61F2002/30062A61F2002/30224A61F2002/30225A61F2002/30785A61F2002/30985A61F2210/0004A61F2230/0069A61F2310/00293A61F2310/00353A61L27/54A61L2300/412A61L2300/434A61L2300/602B33Y10/00B33Y70/00B33Y80/00Y10T428/15Y10T428/24273Y10T428/31504
    • Methods of manufacturing an article use three-dimensional printing for a portion of the manufacturing. Three-dimensionally printing is conducted onto a powder bed which contains both organic-solvent-soluble, water-insoluble particles and water soluble, organic-solvent-insoluble particles. The water-soluble particles which may be selected for properties such as size and may include more than one substance. The organic-solvent-insoluble particles may further include at least one substantially insoluble substance such as a member of the calcium phosphate family. Printing may be done using an aqueous binder liquid. After removal of unbound powder, the preform may be exposed to the vapor of an organic solvent which causes the particles of organic-soluble-polymer to fuse to each other. This may further be followed by dissolving out the water-soluble particles, if such particles were present in the powder. Solvent vapor fusing together with the use of porogen particles may also be used in manufacturing methods other than 3DP. Rather than using organic solvent, heat responsive particles can be used, and can be filmed by elevated temperatures. Articles that may be produced by the described methods exhibit features such as a high porosity and an ability to undergo large deformations without breaking, and by at least partial springback from such deformation. The springback may be substantially instantaneous or may be time-dependent involving a time period of at least several seconds.
    • 制造制品的方法在制造的一部分中使用三维印刷。 将三维打印进行到含有有机溶剂可溶性,水不溶性颗粒和水溶性有机溶剂不溶性颗粒的粉末床上。 可以选择尺寸等性质的水溶性颗粒,并且可以包括多于一种物质。 有机溶剂不溶性颗粒可以进一步包括至少一种基本上不溶的物质,例如磷酸钙族的成员。 可以使用水性粘合剂液体进行印刷。 在去除未结合的粉末之后,预制件可能暴露于有机溶剂的蒸气中,这导致有机可溶聚合物颗粒彼此熔合。 如果这种颗粒存在于粉末中,则可以进一步溶解水溶性颗粒。 与使用致孔剂颗粒一起使用的溶剂蒸汽熔融也可用于3DP以外的制造方法。 不使用有机溶剂,可以使用热响应颗粒,并且可以通过升高的温度进行成膜。 可以通过所述方法产生的制品表现出诸如高孔隙率和经受大变形而不断裂的能力以及至少部分回弹的特征。 回弹可以基本上是瞬时的,或者可以是时间依赖性的,涉及至少几秒的时间段。