US 12,358,217 B2
Three-dimensional printing with flame retardant
Shannon Reuben Woodruff, San Diego, CA (US); Graciela Emma Negri Jimenez, San Diego, CA (US); and Emre Hiro Discekici, San Diego, CA (US)
Assigned to Peridot Print LLC, Palo Alto, CA (US)
Appl. No. 18/269,744
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
PCT Filed Jan. 8, 2021, PCT No. PCT/US2021/012663
§ 371(c)(1), (2) Date Jun. 26, 2023,
PCT Pub. No. WO2022/150043, PCT Pub. Date Jul. 14, 2022.
Prior Publication US 2024/0316861 A1, Sep. 26, 2024
Int. Cl. B29C 64/165 (2017.01); B29K 77/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/10 (2020.01)
CPC B29C 64/165 (2017.08) [B33Y 10/00 (2014.12); B33Y 70/10 (2020.01); B29K 2077/00 (2013.01); B29K 2995/0016 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A three-dimensional printing kit, comprising:
a build material including polyamide particles;
a fusing agent comprising a radiation absorber to generate heat from absorbed electromagnetic radiation and an aqueous liquid vehicle including water; and
a flame retardant solution including 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide dissolved in a C2-C4 lower alcohol, wherein;
i) the flame retardant solution is present in the fusing agent; or
ii) the flame retardant solution is a separate agent; or
iii) the flame retardant solution is in both of the fusing agent and a separate agent.