US 12,237,150 B2
Plasma ion processing of substrates
David R. McKenzie, Sydney (AU); Marcela Bilek, Sydney (AU); Aleksey Kondyurin, Sydney (AU); and Elena Kosobrodova, Sydney (AU)
Assigned to LIFEHOUSE AUSTRALIA AS TRUSTEE FOR THE LIFEHOUSE AUSTRALIA TRUST, Camperdown (AU)
Appl. No. 17/769,724
Filed by Lifehouse Australia as Trustee for The Lifehouse Australia Trust, Camperdown (AU)
PCT Filed Oct. 16, 2020, PCT No. PCT/AU2020/051117
§ 371(c)(1), (2) Date Apr. 15, 2022,
PCT Pub. No. WO2021/072502, PCT Pub. Date Apr. 22, 2021.
Claims priority of application No. 2019903902 (AU), filed on Oct. 16, 2019.
Prior Publication US 2022/0359163 A1, Nov. 10, 2022
Int. Cl. H01J 37/32 (2006.01); A61L 27/16 (2006.01); A61L 27/18 (2006.01); A61L 27/56 (2006.01); B29C 64/30 (2017.01); B29C 71/04 (2006.01); B33Y 40/20 (2020.01); C08J 7/12 (2006.01); B22F 1/145 (2022.01)
CPC H01J 37/32412 (2013.01) [A61L 27/16 (2013.01); A61L 27/18 (2013.01); A61L 27/56 (2013.01); B29C 64/30 (2017.08); B29C 71/04 (2013.01); B33Y 40/20 (2020.01); C08J 7/123 (2013.01); B22F 1/145 (2022.01); C08J 2355/02 (2013.01); C08J 2367/04 (2013.01); C08J 2371/12 (2013.01); C08J 2381/06 (2013.01); H01J 37/32541 (2013.01); H01J 2237/3365 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for plasma modification of a porous material, comprising:
a) flowing a gas into pores of said porous material; and
b) exposing the gas to a pulsed electric field in said pores;
wherein
the porous material is a three-dimensional structure and has a plurality of internal cavities; and
the pulsed electric field is provided by a powered first electrode with sufficient strength to ionise the gas to generate a plasma, wherein
the powered first electrode at least partially surrounds the porous material; and
the ionization of the gas occurs inside the plurality of internal cavities of the porous material;
the porous material is held within a support and the support is in the form of a sleeve or tube that constrains the flow of the gas; and
the powered first electrode is the sleeve or tube or at least partially surrounds the sleeve or tube.