The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 30, 2022

Filed:

May. 15, 2018
Applicant:

Hewlett-packard Development Company, L.p., Spring, TX (US);

Inventors:

Sterling Chaffins, Corvallis, OR (US);

Anthony P. Holden, Corvallis, OR (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 64/165 (2017.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B29C 64/268 (2017.01); B29K 75/00 (2006.01); B29K 77/00 (2006.01); B29K 105/00 (2006.01);
U.S. Cl.
CPC ...
B29C 64/165 (2017.08); B29C 64/268 (2017.08); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B29K 2075/00 (2013.01); B29K 2077/00 (2013.01); B29K 2105/0044 (2013.01);
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.


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