Method for forming thermoplastic additive manufacturing powders
US11845833B2 · kind B2 · utility
0Cited by
27References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 16, 2022 |
| Grant date | Dec 19, 2023 |
| Priority date | — |
| Expiry date | May 16, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/025
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Useful thermoplastic polymer powders are formed by a method comprising: cooling a foam comprised of a thermoplastic foam below the brittleness temperature of the thermoplastic polymer, wherein the foam has an average strut dimension of 10 to 500 micrometers, and comminuting the cooled foam to form a thermoplastic polymer powder. The method allows for the efficient grinding of the thermoplastic polymer having improved morphology and desirable characteristics such as dry flow without flow aids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.