| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a process for forming a three-dimensional article by stereolithography. <P>SOLUTION: The process for forming the three-dimensional article comprises the steps, (1) coating a thin layer of a liquid radiation-curable composition onto a surface, wherein the composition includes at least one filler comprising silica-type nano-particles suspended in the radiation-curable composition, (2) exposing the thin layer imagewise to actinic radiation to form an imaged cross-section, wherein the radiation is of sufficient intensity to cause substantial curing of the thin layer in the exposed areas, (3) coating a thin layer of the composition onto the previously exposed imaged cross-section, (4) exposing the thin layer from step (3) imagewise to actinic radiation to form an additional imaged cross-section, wherein the radiation is of sufficient intensity to cause substantial curing of the thin layer in the exposed areas and to cause adhesion to the previously exposed imaged cross-section, and (5) repeating steps (3) and (4) a sufficient number of times in order to build up the three-dimensional article. <P>COPYRIGHT: (C)2008,JPO&INPIT |
