Sacrificial high heat support materials for additive manufacturing processes
US10618223B2 · kind B2 · utility
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5References
15Claims
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Key dates
| Filing date | Sep 12, 2017 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Sep 12, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2869/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Disclosed herein are methods that includes using a water-degradable (e.g., autoclavable) support material together with a high-heat build material (e.g., polyetherimide or PEI). When the support material is autoclaved for a period of time, the support material becomes brittle and then disintegrates into powder and therefore can be removed from the model or build material, leaving behind a part formed from the model material that includes features (e.g., cavities, channels, etc.) formerly occupied by the support material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.