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.:
Date of Patent:
Jun. 24, 2025
Filed:
Nov. 16, 2020
Signify Holding B.v., Eindhoven, NL;
Rifat Ata Mustafa Hikmet, Eindhoven, NL;
Ties Van Bommel, Horst, NL;
Stefan Willi Jukius Gruhlke, Baesweiler, DE;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
Provided is a method for producing a 3D item using fused deposition modelling, the method comprising a 3D printing stage comprising: layer-wise depositing an extrudate comprising 3D printable material, to provide the 3D item comprising 3D printed material, wherein the 3D item comprises a plurality of layers of 3D printed material having a core-shell 3D printable material, wherein the core material comprises a core thermoplastic material and core additive material, wherein the shell material comprises a shell thermoplastic material and shell particles, wherein the shell material is light transmissive, wherein the shell particles comprise specularly reflective particles, wherein the core additive material comprises one or more of diffuse reflective particles, white particles, black particles, colored particles, and dye molecules, and wherein the core material and shell material differ in one or more optical properties selected from the group of color, reflectivity, type of reflectivity, and absorption of light.