US 12,357,978 B2
Light upconversion microcapsules
Brandon M. Kobilka, Fishkill, NY (US); Jason T. Wertz, Pleasant Valley, NY (US); Sarah K. Czaplewski-Campbell, Rochester, MN (US); and Eric J. Campbell, Rochester, MN (US)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Aug. 7, 2020, as Appl. No. 16/987,943.
Prior Publication US 2022/0040682 A1, Feb. 10, 2022
Int. Cl. B65D 65/06 (2006.01); B01J 31/02 (2006.01); B01J 31/06 (2006.01); B01J 31/18 (2006.01); B01J 35/00 (2006.01); B01J 35/39 (2024.01); B01J 37/00 (2006.01); B01J 37/04 (2006.01); B25G 1/10 (2006.01); C09K 11/07 (2006.01); A63B 60/14 (2015.01); B62K 21/26 (2006.01)
CPC B01J 31/183 (2013.01) [B01J 31/0271 (2013.01); B01J 31/06 (2013.01); B01J 31/1815 (2013.01); B01J 35/19 (2024.01); B01J 35/39 (2024.01); B01J 37/0072 (2013.01); B01J 37/04 (2013.01); C09K 11/07 (2013.01); B01J 2231/005 (2013.01); B01J 2531/008 (2013.01); B01J 2531/824 (2013.01); B01J 2531/828 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A microcapsule, comprising:
a transparent shell encapsulating a mixture, wherein:
the mixture comprises a molecular sensitizer and a molecular annihilator that, in combination, are able to produce visible light in response to electromagnetic radiation with a wavelength greater than 800 nm;
the molecular sensitizer and the molecular annihilator are suspended in a transparent material selected from the group consisting of a non-solvent liquid, an oil, and a gel; and
the microcapsule has a size greater than 5 μm.