Polymer-based build material for selective sintering

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United States of America

PATENT NO 12098297
SERIAL NO

17291891

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Abstract

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Plastic powder for use as a building material for manufacturing a three-dimensional object by layer-by-layer melting and solidification by hardening of the building material at the positions corresponding to the cross-section of the three-dimensional object in the respective layer by exposure to radiation, preferably by exposure to NIR radiation, wherein the plastic powder comprises a dry blend of polymer-based particles and particles of a NIR absorber, wherein the NIR absorber comprises carbon black or is carbon black and wherein the weight percentage of carbon black in the total weight of polymer and carbon black particles is in the range of at least 0.02% and at most 0.45%, and/or wherein the carbon black has a mean primary particle diameter in the range of from 15 nm to 70 nm, preferably of at least 26 nm and/or at most 58 nm.

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Patent Owner(s)

Patent OwnerAddress
EOS GMBH ELECTRO OPTICAL SYSTEMS82152 KRAILLING

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Christ, Marius Munich, DE 3 1
Gerg, Malin Munich, DE 1 1
Hotter, Andreas Rosenheim, DE 25 116
Mattes, Thomas Gilching, DE 29 2394
Paternoster, Stefan Andechs, DE 26 283
Pfisterer, Heiko Emmering, DE 1 1

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