Thermoplastic polymer composition for constructing 3D articles
US12319796B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Oct 8, 2020 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Nov 12, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2491/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a composition for the layer-by-layer building of a three-dimensional article by sintering of the composition brought about by electromagnetic radiation, the composition comprising a semicrystalline thermoplastic polymer powder and at least one wax, the wax having a dropping point which is greater than the crystallization temperature of the semicrystalline thermoplastic polymer, said composition in addition optionally comprising a flow agent.The invention also relates to a process for the preparation of said composition and also to its use for the layer-by-layer building of a three-dimensional article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.