US 12,351,736 B2
Dip-coat binder solutions comprising metal dip-coat powder for use in additive manufacturing
Arunkumar Natarajan, Mason, OH (US); Sivaruban Shivanathan, West Chester, OH (US); Samantha Jo Rowe, West Chester, OH (US); and Carlos H. Bonilla, Lebanon, OH (US)
Assigned to GENERAL ELECTRIC COMPANY, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Oct. 13, 2021, as Appl. No. 17/500,420.
Claims priority of provisional application 63/111,340, filed on Nov. 9, 2020.
Prior Publication US 2022/0145102 A1, May 12, 2022
Int. Cl. C09D 7/61 (2018.01); B22F 10/60 (2021.01); B33Y 40/20 (2020.01); C09D 7/40 (2018.01); C09D 135/04 (2006.01); C09D 139/06 (2006.01)
CPC C09D 7/61 (2018.01) [B22F 10/60 (2021.01); B33Y 40/20 (2020.01); C09D 7/68 (2018.01); C09D 7/69 (2018.01); C09D 135/04 (2013.01); C09D 139/06 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A dip-coat binder solution comprising:
greater than or equal to 25 wt % and less than 70 wt % of a metal dip-coat powder, based on a total weight of the dip-coat binder solution, the metal dip-coat powder having a median particle size distribution greater than or equal to 0.5 μm and less than or equal to 30 μm; and
greater than 30 wt % of a non-reactive dip-coat binder,
wherein the non-reactive dip-coat binder comprises a thermoplastic polymer,
wherein the thermoplastic polymer is selected from the group consisting of polyvinyl alcohol (PVA), polyacrylic acid (PAA), derivatives thereof, and combinations thereof,
wherein the thermoplastic polymer has an average molecular weight greater than or equal to 7,000 g/mol and less than or equal to 50,000 g/mol; and
wherein the dip-coat binder solution has a viscosity greater than or equal to 1 cP and less than or equal to 40 cP, as measured using a rheometer according to ASTM E3116.