US 12,233,457 B2
Three-dimensional printing
Tienteh Chen, San Diego, CA (US); and Dennis Z. Guo, San Diego, CA (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/047,503
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Sep. 21, 2018, PCT No. PCT/US2018/052278
§ 371(c)(1), (2) Date Oct. 14, 2020,
PCT Pub. No. WO2020/060567, PCT Pub. Date Mar. 26, 2020.
Prior Publication US 2021/0354203 A1, Nov. 18, 2021
Int. Cl. B33Y 70/00 (2020.01); B22F 10/14 (2021.01); B22F 10/20 (2021.01); B22F 10/64 (2021.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B29C 64/165 (2017.01)
CPC B22F 10/64 (2021.01) [B22F 10/14 (2021.01); B22F 10/20 (2021.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); B29C 64/165 (2017.08)] 18 Claims
OG exemplary drawing
 
1. A three-dimensional printing kit, comprising:
a particulate build material including from about 80 wt % to 100 wt % metal particles based on a total weight of the particulate build material; and
a separate binder fluid including:
water;
polymer particles in an amount ranging from about 1 wt % to about 40 wt % based on a total weight of the binder fluid, wherein the polymer particles are polymerized monomers of vinyl acetate, vinyl chloride, vinylidene chloride, vinylbenzyl chloride, vinyl ester, vinyl pyrrolidone, styrene, ethylene, maleate esters, fumarate esters, itaconate esters, α-methyl styrene, p-methyl styrene, methyl methacrylate, hexyl acrylate, hexyl methacrylate, hydroxyethyl acrylate, butyl acrylate, butyl methacrylate, ethyl acrylate, ethyl methacrylate, propyl acrylate, propyl methacrylate, 2-ethylhexyl acrylate, 2-ethylhexyl methacrylate, octadecyl acrylate, octadecyl methacrylate, stearyl methacrylate, 2-phenoxyethyl methacrylate, vinylbenzyl chloride, isobornyl acrylate, tetrahydrofurfuryl acrylate, 2-phenoxyethyl methacrylate, benzyl methacrylate, benzyl acrylate, ethoxylated nonyl phenol methacrylate, isobornyl methacrylate, ethylene glycol dimethacrylate, diethylene glycol dimethacrylate, triethylene glycol dimethacrylate, cyclohexyl methacrylate, trimethyl cyclohexyl methacrylate, t-butyl methacrylate, n-octyl methacrylate, lauryl acrylate, lauryl methacrylate, trydecyl methacrylate, alkoxylated tetrahydrofurfuryl acrylate, isodecyl acrylate, dimethyl maleate, dioctyl maleate, acetoacetoxyethyl methacrylate, diacetone acrylamide, N-vinyl imidazole, N-vinylcarbazole, N-vinyl-caprolactam, pentaerythritol tri-acrylate, pentaerythritol tetra-acrylate, pentaerythritol tri-methacrylate, pentaerythritol tetra-methacrylate, glycidyl acrylate, glycidyl methacrylate, tetrahydrofuryl acrylate, tetrahydrofuryl methacrylate, diacetone acrylamide, t-butyl acrylamide, divinylbenzene, 1,3-butadiene, acrylonitrile, methacrylonitrile, derivatives thereof, or mixtures thereof; and
a blocked polyisocyanate adhesion promoter in an amount ranging from about 1.5 wt % to about 3.0 wt % based on the total weight of the binder fluid.