US 12,472,682 B2
Three-dimensional printing with pore-promoting agents and acidic agents
Emre Hiro Discekici, San Diego, CA (US); Shannon Reuben Woodruff, San Diego, CA (US); Dennis J. Schissler, San Diego, CA (US); and Graciela Emma Negri Jimenez, San Diego, CA (US)
Assigned to Peridot Print LLC, Palo Alto, CA (US)
Appl. No. 18/280,871
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
PCT Filed Mar. 12, 2021, PCT No. PCT/US2021/022206
§ 371(c)(1), (2) Date Sep. 7, 2023,
PCT Pub. No. WO2022/191858, PCT Pub. Date Sep. 15, 2022.
Prior Publication US 2024/0157631 A1, May 16, 2024
Int. Cl. B29C 64/118 (2017.01); B29C 44/34 (2006.01); B29C 64/291 (2017.01); B29C 64/295 (2017.01); B29C 64/112 (2017.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01)
CPC B29C 64/118 (2017.08) [B29C 44/348 (2013.01); B29C 64/291 (2017.08); B29C 64/295 (2017.08); B29C 64/112 (2017.08); B33Y 10/00 (2014.12); B33Y 70/10 (2020.01)] 13 Claims
OG exemplary drawing
 
1. A multi-fluid kit for three-dimensional printing, the multi-fluid kit comprising:
a fusing agent comprising water and a radiation absorber, wherein the radiation absorber absorbs radiation energy and converts the radiation energy to heat;
an acidic agent contained separately from the fusing agent, the acidic agent comprising water and an acidic component, the acidic agent having a pH from about pH 1 to about pH 6.9; and
a pore-promoting agent contained separately from the fusing agent and the acidic agent, the pore-promoting agent comprising water and a pore-promoting compound that is water-soluble, wherein the pore-promoting compound chemically reacts with the acidic component of the acidic agent to generate a gas and the pore-promoting compound is selected from the group consisting of sodium bicarbonate, potassium bicarbonate, and a combination thereof.