US 12,447,672 B2
Three-dimensional printing
Emre Hiro Discekici, San Diego, CA (US); Shannon Reuben Woodruff, San Diego, CA (US); Krzysztof Nauka, Palo Alto, CA (US); and Vladek P. Kasperchik, Corvallis, OR (US)
Assigned to Peridot Print LLC, Palo Alto, CA (US)
Appl. No. 17/298,637
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
PCT Filed Apr. 24, 2020, PCT No. PCT/US2020/029829
§ 371(c)(1), (2) Date May 31, 2021,
PCT Pub. No. WO2020/251661, PCT Pub. Date Dec. 17, 2020.
Application 17/298,637 is a continuation in part of application No. PCT/IB2019/001327, filed on Jun. 10, 2019.
Prior Publication US 2022/0119622 A1, Apr. 21, 2022
Prior Publication US 2025/0066583 A9, Feb. 27, 2025
Int. Cl. B29C 64/165 (2017.01); B33Y 70/10 (2020.01); C08K 3/22 (2006.01); C08K 5/25 (2006.01); C08L 77/02 (2006.01); B29K 77/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01)
CPC B29C 64/165 (2017.08) [B33Y 70/10 (2020.01); C08K 3/22 (2013.01); C08K 5/25 (2013.01); C08L 77/02 (2013.01); B29K 2077/00 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12)] 12 Claims
OG exemplary drawing
 
1. An ultraviolet (UV) light fusing agent for three-dimensional (3D) printing, consisting of:
a vehicle consisting of water, a water miscible or water soluble organic solvent, and optionally a surfactant; and
a multi-functional antioxidant and UV light absorber dispersed in the vehicle, the multi-functional antioxidant and UV light absorber consisting of:
a metal oxide particle that is to absorb UV radiation having a wavelength within a range from about 330 nm to about 405 nm and an average particle size ranging from about 50 nm to about 950 nm; and
a passivating agent complexed with at least a portion of a surface of the metal oxide particle,
wherein the metal oxide particle and the passivating agent are present in a weight ratio of about 1:1.