Patent · US Active

Three-dimensional printing

US11426932B2 · kind B2 · utility

0Cited by
1References
12Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 15, 2018
Grant dateAug 30, 2022
Priority date
Expiry dateMay 25, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08L77/00
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

In an example of a method for reducing oxidation of a build material during three-dimensional printing, a portion of a layer of a polymeric build material is patterned by selectively applying a fusing agent on the portion. A detailing agent selectively applied on a non-patterned portion of the layer. The detailing agent includes a stabilizer to reduce oxidation of the polymeric build material. The layer is exposed to electromagnetic radiation to fuse the portion to form a 3D object layer. The stabilizer at least minimizes discoloration of the non-patterned portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.