Acceleration of stereolithography
US9975295B2 · kind B2 · utility
20Cited by
16References
41Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 11, 2015 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Jun 7, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/0058
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of forming a three-dimensional object by bottom-up three-dimensional fabrication by irradiating a polymerizable liquid to produce the three-dimensional object, is described. In the method: (i) a Lewis acid or an oxidizable tin salt (e.g., stannous octoate) is included in said polymerizable liquid in an amount effective to accelerate the formation of said three-dimensional object during said fabrication; and/or (ii) the three-dimensional object is irradiated after forming to further polymerize unpolymerized material remaining in the three-dimensional object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.