Support material formulation and additive manufacturing processes employing same
US11850802B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Dec 6, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Dec 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/027
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Novel support material formulations, characterized as providing a cured support material with improved dissolution rate, while maintaining sufficient mechanical strength, are disclosed. The formulations comprise a water-miscible non-curable polymer, a first water-miscible, curable material and a second, water-miscible material that is selected capable of interfering with intermolecular interactions between polymeric chains formed upon exposing the first water-miscible material to curing energy. Methods of fabricating a three-dimensional object, and a three-dimensional object fabricated thereby are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.