Polymeric structure, method of producing polymeric structure and filter including polymeric structure

A method of producing a polymeric structure, the method comprising:

• 3D-printing a first layer comprising a first plurality of strands that are positioned substantially parallel to each other in a first direction;
• 3D-printing a second layer comprising a second plurality of strands that are positioned substantially parallel to each other in a second direction;
• wherein the first layer and the second layer are stacked to form a plurality of spaces in the first and the second stacked layers;
• providing an emulsion comprising a solvent and a sorbent;
• applying the emulsion on and into the first and the second stacked layers;
• and
• removing the solvent from the applied emulsion to obtain the polymeric structure.

A filter device comprising:

• a housing having at least one inlet and at least one outlet;
• and
• a plurality of polymeric structures received in the housing,
• wherein each of the plurality of polymeric structures comprises:
• a plurality of stacked layers formed of 3D-printed polymeric material, the plurality of stacked layers comprising a first layer comprising a first plurality of strands that are positioned substantially parallel to each other in a first direction and a second layer comprising a second plurality of strands that are positioned substantially parallel to each other in a second direction;
• a plurality of spaces formed in the plurality of stacked layers;
• and
• a sorbent positioned in the plurality of spaces having a mass per m2 of a surface area of the polymeric structure that is at least 200 g/m2, and
• wherein a face of one of the polymeric structures faces a face of an adjacent polymeric structure and at a distance from the adjacent polymeric structure so as to form a channel therebetween, wherein the channel is in fluid communication with the at least one inlet and the at least one outlet.