IDiyas

For the Inventor, By the Inventor

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.

Patent No.:

US 11833749 B1

PDFFull Text
Date of Patent:
Dec. 05, 2023

Filed:

Dec. 18, 2018

Method for producing a treated, 3d printed object

Applicant:

Covestro Deutschland Ag, Leverkusen, DE;

Inventors:

Dirk Achten, Leverkusen, DE;

Thomas Buesgen, Leverkusen, DE;

Roland Wagner, Leverkusen, DE;

Jonas Kuenzel, Leverkusen, DE;

Michael Kessler, Cologne, DE;

Bettina Mettmann, Dormagen, DE;

Assignee:

STRATASYS, INC., Eden Prairie, MN (US);

Attorney:

Faegre Drinker Biddle & Reath LLP

Primary Examiner:

Nahida Sultana

Int. Cl.
CPC ...
B29C 64/165 (2017.01); B22F 1/105 (2022.01); B29C 64/30 (2017.01); B29C 71/02 (2006.01); B33Y 40/20 (2020.01); B22F 10/14 (2021.01); B33Y 10/00 (2015.01); B22F 10/38 (2021.01); B22F 10/62 (2021.01);
U.S. Cl.
CPC ...
B29C 64/165 (2017.08); B22F 1/105 (2022.01); B22F 10/14 (2021.01); B29C 64/30 (2017.08); B29C 71/02 (2013.01); B33Y 40/20 (2020.01); B22F 10/38 (2021.01); B22F 10/62 (2021.01); B22F 2302/253 (2013.01); B22F 2302/256 (2013.01); B29C 2071/027 (2013.01); B33Y 10/00 (2014.12);
Abstract

The present invention relates to a method for producing a treated object, comprising the steps of: applying a layer of particles to a target area; applying a liquid binder to a selected portion of the layer in accordance with a cross-section of the object, so that the particles in the selected portion are bonded; repeating the steps of applying a layer of particles and applying a binder for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form an object, wherein at least a part of the particles comprises a meltable polymer. A binder which cures by cross-linking is preferably selected as the binder. The obtained object is at least partially contacted with a liquid heated to ≥T or with a powder bed heated to ≥T in order to obtain the treated object. T represents a temperature of ≥25° C., the liquid does not represent a solvent or a reaction partner for the binder present in the object and the meltable polymer, and the powder bed is different from the particles of the meltable polymer. The invention also relates to a treated object that can be obtained by the method according to the invention.

Find Patent Forward Citations

Loading…