US 12,415,219 B2
Stable dispersions of monocrystalline nanometric silver particles
Fernando De La Vega, Zichron Yaakov (IL); Ganit Shter Bar Joshua, Haifa (IL); Semyon Melamed, Kiryat Yam (IL); Reuven Geva, Nofit (IL); and Moshe Link, Haifa (IL)
Assigned to P.V. Nano Cell Ltd., Migdal HaEmek (IL)
Filed by P.V. NANO CELL LTD., Migdal Haemek (IL)
Filed on Apr. 16, 2024, as Appl. No. 18/637,403.
Application 18/637,403 is a continuation of application No. 17/233,492, filed on Apr. 18, 2021, granted, now 11,958,116.
Application 17/233,492 is a continuation of application No. 15/412,124, filed on Jan. 23, 2017, granted, now 10,984,920, issued on Apr. 20, 2021.
Application 15/412,124 is a continuation of application No. 13/991,905, granted, now 9,556,350, issued on Jan. 31, 2017, previously published as PCT/US2011/063459, filed on Dec. 6, 2011.
Claims priority of application No. 1020556 (GB), filed on Dec. 6, 2010.
Prior Publication US 2024/0408672 A1, Dec. 12, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H01B 1/22 (2006.01); B22F 1/0545 (2022.01); B22F 9/24 (2006.01); B82Y 30/00 (2011.01); C09D 11/52 (2014.01)
CPC B22F 9/24 (2013.01) [B22F 1/0545 (2022.01); B82Y 30/00 (2013.01); C09D 11/52 (2013.01); H01B 1/22 (2013.01); B22F 2009/245 (2013.01); B22F 2301/255 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A concentrated dispersion of nanometric silver particles, the dispersion comprising:
(a) a first solvent;
(b) nanometric silver particles, in which a majority of said nanometric silver particles are single-crystal silver particles having an average secondary particle size (d50) within a range of 30 to 200 nanometers, said nanometric silver particles disposed within said first solvent, wherein at least 50% of a group of at least 10 randomly-selected electron back scattered diffraction (EBSD) scans produce a substantially perfect match for a single crystal; and
(c) at least one dispersant,
wherein a concentration of said nanometric silver particles within the concentrated dispersion is within a range of 30% to 75%, by weight,
and wherein a concentration of said dispersant within the dispersion is within a range of 0.2% to 30% of said concentration of said nanometric silver particles, by weight.