Additive manufacturing composition
US11000993B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Jun 30, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/53
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An additive manufacturing composition for powder bed processes is described. The composition includes at least a first type of impact modified polymer beads. The polymer beads include a) an acrylic or vinyl (co)polymer matrix, and b) an impact modifier in which at least 85% w/w of the first type of impact modified polymer beads have a particle size of between ≥20 μm and ≤200 μm and/or on average the impact modified polymer beads have greater than 5% w/w impact modifier. Also disclosed is an additive manufacturing process for a production of a three dimensional product comprising fused impact modified polymer particles. The use of a composition in additive manufacturing, an additive manufacturing cartridge or replacement hopper and a process for the production of impact modified polymer beads by a suspension polymerization process is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.