Selective laser sintering composition and selective laser sintering 3D printing method employing the same
US11458677B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2019 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Jan 18, 2041 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2312/06
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A selective laser sintering composition and a selective laser sintering 3D printing method employing the same are provided. The selective laser sintering composition includes a nanoscale inorganic powder and a thermoplastic vulcanizate powder. The temperature difference (ΔT) between the onset temperature for melting the thermoplastic vulcanizate powder and the onset temperature at which the thermoplastic crystallizes vulcanizate powder is greater than or equal to 10° C. The thermoplastic vulcanizate powder includes a thermoplastic and a crosslinked polymer. The temperature difference (ΔT) between the onset temperature for melting the thermoplastic and the onset temperature at which the thermoplastic crystallizes is greater than or equal to 10° C. , and the weight ratio of the thermoplastic to the crosslinked polymer is from 1:1 to 1:4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.