Three-dimensional printing method
US12214545B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Apr 30, 2020 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Dec 13, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K2201/005
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of three-dimensional printing an object having a varying degree of transmissivity to light along an axis of the object, the method comprising the steps of (a) providing a liquefied polymer resin having a plurality of particles therein, the particles being distributed in the liquefied polymer resin based on the density of the particles; and (b) polymerizing the liquefied polymer resin under conditions to form the object layer-by-layer. There is also provided a formulation for three-dimensional printing and a three-dimensional printed object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.