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:
Jan. 26, 2021
Filed:
Dec. 13, 2018
Covestro Deutschland Ag, Leverkusen, DE;
Dirk Achten, Leverkusen, DE;
Thomas Buesgen, Leverkusen, DE;
Michael Kessler, Cologne, DE;
Peter Reichert, Dormagen, DE;
Bettina Mettmann, Dormagen, DE;
Covestro Deutschland AG, Leverkusen, DE;
Abstract
The invention relates to an additive manufacturing process (3D printing) using particles having a meltable polymer. The meltable polymer comprises a thermoplastic polyurethane polymer which has a flowing temperature (intersection of E' and E″ in the DMA) of ≥80° C. to <180° C. and a Shore A hardness according to DIN ISO 7619-1 of ≥50 Shore A and <85 Shore A and which, at a temperature T, has a melt volume rate (melt volume rate (MVR)) according to ISO 1133 of ≥5 to <15 cm/10 min. The invention also relates to an item which can be obtained by means of the method.