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:
Feb. 22, 2022
Filed:
Jan. 09, 2019
Ut-battelle, Llc, Oak Ridge, TN (US);
The Exone Company, North Huntingdon, PA (US);
Tomonori Saito, Knoxville, TN (US);
Amy M. Elliott, Knoxville, TN (US);
Daniel T. Brunermer, Leechburg, PA (US);
Dustin Blake Gilmer, Kingsport, TN (US);
Michelle Lehmann, Knoxville, TN (US);
Huayun Yu, Delmont, PA (US);
UT-Battelle, LLC, Oak Ridge, TN (US);
The ExOne Company, North Huntingdon, PA (US);
Abstract
A method for binder jetting additive manufacturing of an object, the method comprising: (i) separately feeding a powder from which said object is to be manufactured and a solution comprising an adhesive polymer dissolved in a solvent into an additive manufacturing device, wherein said adhesive polymer is an amine-containing polymer having a molecular weight of at least 200 g/mole and is present in said solution in a concentration of 1-30 wt % to result in said solution having a viscosity of 2-25 mPa·s and a surface tension of 25-45 mN/m at room temperature; and (ii) dispensing selectively positioned droplets of said adhesive polymer, from a printhead of said additive manufacturing device, into a bed of said powder to bind particles of said powder with said adhesive polymer to produce a preform having a shape of the object to be manufactured.