3D printing water soluble support filament and method of manufacture thereof
US11446877B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2018 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Dec 4, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/04
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed herein are at least partially water soluble compositions for use in 3D printing. The compositions comprise a mixture of polymeric materials that can be printed using existing 3D printing devices to form a support scaffold for overhanging parts of a 3D object to be printed. The 3D object can be printed such that at least a portion of the 3D object is printed onto the support scaffold. After printing, the support scaffold can be removed from the 3D object by treatment with water, such as by immersion in water. The compositions can comprise a mixture of one or more water soluble polymers and one or more water insoluble polymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.