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US 12,420,472 B2Granted
Additive manufacture of hierarchically porous materials with high resolution
AssigneeLawrence Livermore National Security, LLC
InventorsSiwei Liang, Theodore F. Baumann, Eric B. Duoss, Christopher M. Spadaccini, Marcus A. Worsley, Cheng Zhu
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Abstract
In one embodiment, an ink includes a polymer precursor, a copolymer, a catalyst, and a solvent. In another embodiment, a product includes a three-dimensional printed structure having ligaments, where an average diameter of the ligaments is in a range of about 10 microns to about 500 microns.
Claims18
An ink, comprising:
- a polymer precursor, wherein the polymer precursor is a formaldehyde resin;
- a copolymer, wherein a ratio by weight of the polymer precursor to the copolymer is in a range from about 1:1 to about 1:11;
- a catalyst;
- and
- a solvent,
- wherein the ink is physically characterized as being extrudable into self-supporting ligaments.
3 more elements
Dependencies are inferred from the claim text.