US 12,257,770 B2
Three-dimensional printing with dihydrazides and glycidyl compounds
Tienteh Chen, San Diego, CA (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/633,647
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Oct. 10, 2019, PCT No. PCT/US2019/055581
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/071493, PCT Pub. Date Apr. 15, 2021.
Prior Publication US 2022/0324023 A1, Oct. 13, 2022
Int. Cl. B29C 64/165 (2017.01); B22F 1/103 (2022.01); B22F 3/10 (2006.01); B22F 10/14 (2021.01); B22F 10/64 (2021.01); B29K 105/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C09D 11/108 (2014.01)
CPC B29C 64/165 (2017.08) [B22F 1/103 (2022.01); B22F 3/10 (2013.01); B22F 10/14 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C09D 11/108 (2013.01); B29K 2105/0005 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A multi-fluid kit for three-dimensional printing, the multi-fluid kit comprising:
an adhesion promoter agent comprising water and a dihydrazide compound; and
a binder agent that is separate from the adhesion promoter agent, the binder agent comprising:
water;
an organic co-solvent;
a glycidyl compound having two or more glycidyl groups per molecule; and
latex particles comprising polymerized monomers, wherein the polymerized monomers include:
a first monomer having an acid group; and
a second monomer having a vinyl group and without an acid group.