Three-dimensional structured printing
US7578958B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2002 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Nov 7, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C67/246
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for forming a three-dimensional article in sequential layers in accordance with a digital model of the article. The process comprises the steps of defining a layer of powder or liquid material, applying a liquid reagent to the layer in a pattern corresponding to the digital model, and repeating these steps to form successive layers. The powder or liquid material comprises a first reactive component and the applied liquid includes a second active component capable of reacting with the first reactive component so that the article is built up in layers. The characteristics of the layers vary across those layers and/or the properties vary from layer to layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.