US 12,269,008 B2
Microporous polymeric filtering article with sorption particles
Stephen James Grunzinger, Stillwater, MN (US)
Assigned to Stephen James Grunzinger, Stillwater, MN (US)
Appl. No. 17/286,478
Filed by Stephen James Grunzinger, Stillwater, MN (US)
PCT Filed Nov. 12, 2019, PCT No. PCT/US2019/061034
§ 371(c)(1), (2) Date Apr. 18, 2021,
PCT Pub. No. WO2020/102259, PCT Pub. Date May 22, 2020.
Claims priority of provisional application 62/760,180, filed on Nov. 13, 2018.
Prior Publication US 2021/0346865 A1, Nov. 11, 2021
Int. Cl. B01J 20/26 (2006.01); B01D 53/02 (2006.01); B01J 20/04 (2006.01); B01J 20/06 (2006.01); B01J 20/20 (2006.01); B01J 20/22 (2006.01); B01J 20/28 (2006.01); C02F 1/28 (2023.01); C02F 101/30 (2006.01)
CPC B01J 20/265 (2013.01) [B01D 53/02 (2013.01); B01J 20/043 (2013.01); B01J 20/06 (2013.01); B01J 20/205 (2013.01); B01J 20/226 (2013.01); B01J 20/261 (2013.01); B01J 20/262 (2013.01); B01J 20/28026 (2013.01); B01J 20/2808 (2013.01); B01J 20/28083 (2013.01); B01J 20/28085 (2013.01); C02F 1/288 (2013.01); B01D 2253/102 (2013.01); B01D 2253/1124 (2013.01); B01D 2253/202 (2013.01); B01D 2253/204 (2013.01); B01D 2253/25 (2013.01); B01D 2253/308 (2013.01); C02F 1/283 (2013.01); C02F 1/285 (2013.01); C02F 2101/308 (2013.01)] 22 Claims
 
1. An article comprising a bicontinuous structure of polyvinyl chloride or chlorinated polyvinyl chloride and a polyethylene oxide polymer, the polyethylene oxide polymer having an average molecular weight less than 100,000, wherein the bicontinuous structure comprises a nominal channel size of polyethylene oxide polymer between 100 microns and 1 nm, the article further comprising a plurality of sorption particles, the sorption particles are distributed in the polyethylene oxide polymer and the nominal sorption particle size of the plurality of sorption particles is selected to be greater than the nominal channel size, less than the nominal channel size, or the sorption particles are selected so the nominal sorption particle size is selected to be greater and less than the nominal channel size.