US 11,998,864 B2
Filter and metal ion removing method
Mitsuaki Kobayashi, Tokyo (JP); Yukihisa Okada, Tokyo (JP); Takaaki Shirai, Tokyo (JP); and Hideyuki Okada, Kanagawa (JP)
Assigned to Solventum Intellectual Properties Company, Maplewood, MN (US)
Filed by Solventum Intellectual Properties Company, Maplewood, MN (US)
Filed on Jun. 30, 2022, as Appl. No. 17/854,784.
Application 17/854,784 is a continuation of application No. 16/769,451, granted, now 11,400,399, previously published as PCT/IB2019/050060, filed on Jan. 3, 2019.
Claims priority of application No. 2018-001318 (JP), filed on Jan. 9, 2018.
Prior Publication US 2022/0331726 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B01D 39/16 (2006.01); B01J 39/05 (2017.01); B01J 41/07 (2017.01); B01J 45/00 (2006.01); B01J 47/018 (2017.01)
CPC B01D 39/1661 (2013.01) [B01J 39/05 (2017.01); B01J 41/07 (2017.01); B01J 45/00 (2013.01); B01J 47/018 (2017.01); B01D 2239/0291 (2013.01); B01D 2239/0407 (2013.01); B01D 2239/1291 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A filter comprising a porous molding, the porous molding being a sintered product of mixed powder containing dry gel powder including an ion exchange resin and thermoplastic resin powder, or a swelled body of the sintered product, wherein the dry gel powder comprises dried hydrogel particles, and
when water having an electric resistivity value of 18·cm or more is allowed to pass through the filter at a space velocity of 1200 hr−1, the electric resistivity value of water after passage is 15 MΩ·cm or more.