Inorganic polymers and compositions for improved 3D printing of larger scale ceramic materials and components
US11148320B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2018 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Oct 14, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2237/704
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods, processes, systems, devices and apparatus are provided for additive manufacture resulting in the 3D printing of ceramic materials and components with a thickness greater than three millimeters (3 mm). A sulfur-free 3D printable formulation comprises a liquid inorganic polymer resin using Stereolithograpy (SLA) printers and Digital Light Processing (DLP) curing of the polymer resin via the chemical bonding of the materials rather than sintering. Thus, the process has shorter manufacturing intervals, significantly lower energy use and produces larger scale ceramic components having less linear shrinkage, less mass loss and high ceramic yield with no corrosive sulfur compounds present in the ceramic component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.