US 12,146,066 B2
Three-dimensional printing with directionally-dependent reflective particles
Emre Hiro Discekici, San Diego, CA (US); Shannon Reuben Woodruff, San Diego, CA (US); and Alay Yemane, San Diego, CA (US)
Assigned to Hewlett-Packard Development Company, L.P., Spring, TX (US)
Appl. No. 17/297,073
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
PCT Filed Aug. 9, 2019, PCT No. PCT/US2019/045845
§ 371(c)(1), (2) Date May 26, 2021,
PCT Pub. No. WO2021/029850, PCT Pub. Date Feb. 18, 2021.
Prior Publication US 2022/0154023 A1, May 19, 2022
Int. Cl. B33Y 10/00 (2015.01); B29B 7/90 (2006.01); B29C 64/165 (2017.01); B29C 64/314 (2017.01); B33Y 30/00 (2015.01); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01); C09D 11/037 (2014.01); C09D 11/102 (2014.01); C09D 11/322 (2014.01); C09D 11/34 (2014.01); B29K 467/00 (2006.01); B29K 505/00 (2006.01)
CPC C09D 11/34 (2013.01) [B29B 7/90 (2013.01); B29C 64/165 (2017.08); B29C 64/314 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 40/10 (2020.01); B33Y 70/10 (2020.01); C09D 11/037 (2013.01); C09D 11/102 (2013.01); C09D 11/322 (2013.01); B29K 2467/003 (2013.01); B29K 2505/00 (2013.01); B29K 2995/003 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A three-dimensional printing kit, comprising:
a powder bed material comprising polymer-consisting particles mixed with directionally-dependent reflective particles, wherein the directionally-dependent reflective particles include polyethylene terephthalate (PET) particles having a reflective coating and having an X dimension length, a Y dimension width, and a Z dimension thickness that is no more than 10% of each of the X dimension length and the Y dimension width, and wherein the directionally-dependent reflective particles are chemically and thermally stable at a melting point temperature of the polymer-consisting particles; and
a fusing agent to selectively apply to the powder bed material, wherein the fusing agent comprises water and a radiation absorber to absorb radiation energy and convert the radiation energy to heat.