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    • 7. 发明授权
    • Rapid prototyping using multiple materials
    • 使用多种材料进行快速原型制作
    • US5980813A
    • 1999-11-09
    • US105858
    • 1998-06-26
    • Subhash C. NarangSusanna C. VenturaSunity SharmaJohn S. Stotts
    • Subhash C. NarangSusanna C. VenturaSunity SharmaJohn S. Stotts
    • B28B1/30B29C67/00B29C35/08B29C41/02
    • B29C67/0092B29K2995/0073
    • Novel compositions and methods are provided for use in the stepwise, layer by layer fabrication of three-dimensional objects, in which a build material contains a metal having a covalent bond to a non-metal, and the layers are processed to produce the three-dimensional object at least in part through a chemical reaction which alters the covalent bond of the metal. In a first aspect of the invention the build material includes a metal that is covalently bound to a polymeric precursor. In another aspect of the invention, the build material includes a metal, Me, that is covalently bound to a first ligand, L.sub.1. Following deposition of the build material, the first ligand undergoes a redox reaction with a second ligand, L.sub.2, thereby breaking the covalent bond of the metal. In more preferred embodiments of this class, L.sub.1 and L.sub.2 react to form a gas, and the metal reacts to form an oxide such as MeSO.sub.x, MeNO.sub.x, MeCO.sub.x and so forth. In yet another aspect of the invention, multiple build materials are employed to provide non-uniformities such as electrical, thermal, and magnetic conduction paths, structural supports, chemical and wear resistant areas, and so forth.
    • 提供了新颖的组合物和方法用于逐层逐层制造三维物体,其中构建材料包含与非金属共价键的金属,并且这些层被加工以产生三维物体, 至少部分地通过化学反应改变金属的共价键。 在本发明的第一方面,构建材料包括与聚合物前体共价结合的金属。 在本发明的另一方面,构建材料包括与第一配体L1共价结合的金属Me。 在构建材料沉积之后,第一配体与第二配体L2进行氧化还原反应,从而破坏金属的共价键。 在该类的更优选的实施方案中,L1和L2反应形成气体,并且金属反应形成氧化物,例如MeSO x,MeNO x,MeCO x等。 在本发明的另一方面,使用多种构建材料来提供不均匀性,例如电,热和磁传导路径,结构支撑,化学和耐磨区域等。