US 12,318,842 B2
Thermoplastic binders for use in binder jetting additive manufacturing
Arunkumar Natarajan, Niskayuna, NY (US); Carlos Bonilla Gonzalez, Schenectady, NY (US); and Kwok Pong Chan, Niskayuna, NY (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jun. 13, 2022, as Appl. No. 17/838,936.
Application 17/838,936 is a continuation of application No. 15/680,733, filed on Aug. 18, 2017, abandoned.
Prior Publication US 2022/0305556 A1, Sep. 29, 2022
Int. Cl. B22F 3/10 (2006.01); B22F 1/107 (2022.01); B22F 10/14 (2021.01); B22F 10/38 (2021.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); C08K 3/08 (2006.01); C08K 5/00 (2006.01)
CPC B22F 3/1021 (2013.01) [B22F 1/107 (2022.01); B22F 10/14 (2021.01); B22F 10/38 (2021.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); C08K 3/08 (2013.01); C08K 5/00 (2013.01); C08K 2201/005 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A binder solution configured for use in binder jet printing, comprising:
a binder solution comprising a primer, a surfactant, and a linkable thermoplastic binder comprising a first polymer strand and a second polymer strand, wherein the first polymer strand comprises a first functional group and the second polymer strand comprises a second functional group, and wherein the first and second functional groups are configured to non-covalently couple at least a portion of the second polymer strand with at least a portion of the first polymer strand;
wherein the first polymer strand is a first thermoplastic polymer and the second polymer strand is a second thermoplastic polymer, wherein the first thermoplastic polymer is different from the second thermoplastic polymer, wherein the first polymer strand further comprises the second functional group and the second polymer strand further comprises the first functional group, and wherein the first polymer strand is polyvinyl alcohol (PVA), polyamides, polyacryl amide, or derivatives thereof, or combinations thereof, and wherein the second polymer strand is polyacrylic acid (PAA), polymethyl methacrylate (PMMA), polyvinyl methyl ether-maleic anhydride (PVME-MA), or derivatives thereof, or combinations thereof.