Photocurable, self-healable, and shape-memorizable polymers for additive manufacturing
US11491710B2 · kind B2 · utility
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Key dates
| Filing date | Feb 25, 2021 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Feb 25, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2280/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of making an ink for use in additive manufacturing of a self-healable and shape-memorizable product includes mixing a diol with isophorone diisocyanate, dimethylacetamide, and dibutyltin dilaurate to form a first solution. The method further includes mixing the first solution with 2-Hydroxyethyl disulfide to form a second solution. The method further includes mixing the second solution with 2-Hydroxyethyl methacrylate to form a third solution. The method further includes mixing the third solution with a tributylphosphine, a photoinitiator, and a photoabsorber to facilitate additive manufacturing of the ink.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.