US 12,441,054 B2
Additive manufacturing with dual precursor resins
Jason P. Rolland, San Carlos, CA (US)
Assigned to Carbon, Inc., Redwood City, CA (US)
Filed by Carbon, Inc., Redwood City, CA (US)
Filed on Sep. 26, 2023, as Appl. No. 18/474,433.
Application 18/474,433 is a division of application No. 17/324,502, filed on May 19, 2021, abandoned.
Claims priority of provisional application 63/038,938, filed on Jun. 15, 2020.
Prior Publication US 2024/0009921 A1, Jan. 11, 2024
Int. Cl. B29C 64/118 (2017.01); B29C 64/209 (2017.01); B33Y 10/00 (2015.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); B29K 63/00 (2006.01); B29K 75/00 (2006.01); B29K 83/00 (2006.01); B29K 105/00 (2006.01)
CPC B29C 64/118 (2017.08) [B29C 64/209 (2017.08); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); B29K 2063/00 (2013.01); B29K 2075/00 (2013.01); B29K 2083/00 (2013.01); B29K 2105/0002 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method of making a three-dimensional object, comprising:
(a) jetting droplets of at least one dual cure resin or precursor thereof through at least one nozzle carried by a print head of a three-dimensional printing apparatus to form a deposited dual cure resin portion, the dual cure resin comprising a first polymerizable component and a second polymerizable component, wherein said first component is photopolymerizable and said second component is polymerizable by a mechanism different from said first component;
(b) polymerizing said first component with light;
(c) repositioning said print head; and
(d) repeating steps (a) through (c) to form a newly deposited dual cure resin portion on or adjacent to a previously deposited dual cure resin portion until an intermediate three-dimensional object is formed; and then
(e) applying heat and/or moisture to said intermediate three-dimensional object to cure said second component and produce said three-dimensional object,
wherein said at least one dual cure resin or precursor thereof comprises a solvent in an amount effective to reduce the viscosity thereof during said jetting step, and
wherein at least a portion of said solvent evaporates from said droplets prior to said droplets forming said deposited dual cure resin portion.