US 11,732,151 B2
Reversible aminal gel compositions, methods, and use in three-dimensional printing
Peter Boul, Houston, TX (US)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jan. 5, 2021, as Appl. No. 17/141,950.
Claims priority of provisional application 62/958,013, filed on Jan. 7, 2020.
Prior Publication US 2021/0206983 A1, Jul. 8, 2021
Int. Cl. C09D 11/103 (2014.01); B29C 64/106 (2017.01); B33Y 70/10 (2020.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/52 (2014.01); B33Y 10/00 (2015.01); B29K 61/00 (2006.01); B29K 105/16 (2006.01); B29K 507/04 (2006.01)
CPC C09D 11/103 (2013.01) [B29C 64/106 (2017.08); B33Y 70/10 (2020.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/52 (2013.01); B29K 2061/00 (2013.01); B29K 2105/162 (2013.01); B29K 2507/04 (2013.01); B33Y 10/00 (2014.12)] 28 Claims
OG exemplary drawing
 
1. A method for producing a reversible hemiaminal or aminal gel composition for use in 3D printing, the method comprising the steps of:
preparing a liquid precursor composition, the liquid precursor composition operable to remain in a first liquid state at about room temperature, where the liquid precursor composition comprises:
an organic amine composition;
an aldehyde composition;
a polar aprotic organic solvent; and
a carbon nanomaterial;
heating the liquid precursor composition to transition from the first liquid state to a gel state;
transitioning the gel state to a second liquid state comprising adding a metal salt composition to the gel state; and
3D printing a solid carbon nanomaterial object comprising a solid printed gel from the second liquid state with a pre-determined orientation for the carbon nanomaterial.