US 12,454,096 B2
Three-dimensional printing with hydrophobizing and hydrophilizing agents
Graciela Emma Negri Jimenez, San Diego, CA (US); Emre Hiro Discekici, San Diego, CA (US); Jacob Wright, San Diego, CA (US); and Shannon Reuben Woodruff, San Diego, CA (US)
Assigned to Peridot Print LLC, Palo Alto, CA (US)
Appl. No. 17/633,641
Filed by PERIDOT PRINT LLC, Palo Alto, CA (US)
PCT Filed Oct. 11, 2019, PCT No. PCT/US2019/055856
§ 371(c)(1), (2) Date Feb. 8, 2022,
PCT Pub. No. WO2021/071510, PCT Pub. Date Apr. 15, 2021.
Prior Publication US 2022/0314534 A1, Oct. 6, 2022
Int. Cl. B29C 64/165 (2017.01); B29K 101/12 (2006.01); B29K 105/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C09D 11/023 (2014.01); C09D 11/102 (2014.01); C09D 11/107 (2014.01); C09D 183/04 (2006.01)
CPC B29C 64/165 (2017.08) [B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C09D 11/023 (2013.01); C09D 11/102 (2013.01); C09D 11/107 (2013.01); C09D 183/04 (2013.01); B29K 2101/12 (2013.01); B29K 2105/0032 (2013.01); B29K 2995/0092 (2013.01); B29K 2995/0093 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A multi-fluid kit for three-dimensional printing, the multi-fluid kit comprising:
a fusing agent comprising water and an electromagnetic radiation absorber, wherein the electromagnetic radiation absorber absorbs radiation energy and converts the radiation energy to heat;
a hydrophobizing agent comprising water and a hydrophobic additive, wherein the hydrophobic additive is a trialkoxysilane monomer functionalized with a hydrophobic group; and
a hydrophilizing agent comprising:
a liquid vehicle comprising water and an additive comprising an organic co-solvent, a surfactant, a chelating agent, a biocide, an anti-kogation agent, a buffer, or a combination thereof; and
a hydrophilic additive comprising a second polymer having a hydrophilic group.