	US 12,441,661 B2
	Metal oxide ceramic nanomaterials and methods of making and using same
Wei Xu, Basking Ridge, NJ (US); Yijun Wang, Basking Ridge, NJ (US); and Dmitri Brodkin, Livingston, NJ (US)
Assigned to Ivoclar Vivadent AG, Schaan (LI)
Filed by Ivoclar Vivadent AG, Schaan (LI)
Filed on Dec. 6, 2021, as Appl. No. 17/543,630.
Application 15/388,165 is a division of application No. 15/240,673, filed on Aug. 18, 2016, granted, now 9,822,039, issued on Nov. 21, 2017.
Application 17/543,630 is a continuation of application No. 15/817,994, filed on Nov. 20, 2017, granted, now 11,208,355.
Application 15/817,994 is a continuation of application No. 15/388,165, filed on Dec. 22, 2016, granted, now 9,820,917, issued on Nov. 21, 2017.
Prior Publication US 2022/0089502 A1, Mar. 24, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 35/486 (2006.01); A61K 6/17 (2020.01); A61K 6/818 (2020.01); B01D 61/00 (2006.01); C01G 25/02 (2006.01); C02F 1/44 (2023.01); C04B 35/488 (2006.01); C04B 35/624 (2006.01); C04B 35/634 (2006.01); C04B 35/638 (2006.01); C08K 3/22 (2006.01); C08L 71/02 (2006.01); C02F 103/12 (2006.01)

CPC C04B 35/486 (2013.01) [A61K 6/17 (2020.01); A61K 6/818 (2020.01); B01D 61/002 (2013.01); B01D 61/005 (2013.01); C01G 25/02 (2013.01); C02F 1/445 (2013.01); C04B 35/488 (2013.01); C04B 35/4885 (2013.01); C04B 35/624 (2013.01); C04B 35/63416 (2013.01); C04B 35/63488 (2013.01); C04B 35/638 (2013.01); C08K 3/22 (2013.01); C08L 71/02 (2013.01); B01D 2311/02 (2013.01); B01D 2311/04 (2013.01); C01P 2004/64 (2013.01); C02F 2103/12 (2013.01); C04B 2235/3217 (2013.01); C04B 2235/5454 (2013.01); C04B 2235/5463 (2013.01); C04B 2235/602 (2013.01); C04B 2235/606 (2013.01); C04B 2235/608 (2013.01); C04B 2235/61 (2013.01); C04B 2235/612 (2013.01); C04B 2235/762 (2013.01); C04B 2235/765 (2013.01); C04B 2235/77 (2013.01); C04B 2235/781 (2013.01); C04B 2235/785 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9653 (2013.01)]

13 Claims

1. A gel comprising a plurality of zirconia nanoparticles and water, wherein the zirconia nanoparticles have an average size of 10 to 30 nm, 95% or more of the zirconia nanoparticles by volume have a size of 45 nm or less, the zirconia nanoparticles are present at 70 to 85% by weight based on the total weight of the gel and the gel is a formable gel wherein the gel exhibits a viscosity at yield point of 1×10⁹to 12×10⁹mPa·s.