Three-dimensional printing
US11104819B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K3/34
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
This disclosure describes compositions, kits, methods, systems, and three-dimensional parts. According to an example, described herein is a threedimensional printing composition comprising: a polymeric powder build material comprising a thermoplastic polymer powder composition, wherein the thermoplastic polymer powder composition comprises: (a) at least 50 wt % of a C3 polyolefin, or a mixture of two or more polyolefins including at least 60 wt % of a C3 polyolefin based on the total weight of the mixture of the two or more polyolefins, (b) 0.1 to 1 wt % antioxidants, (c) 0.1 to 5 wt % flow aids, (d) 0-10 wt % of a surface modifying agent, (e) 0.05-wt %-10 wt % antistatic agents, (f) 2 wt % to 40 wt % filler, wherein the total of (a) to (f) is 100 wt %.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.