Patent ID: 11938214
Assignee: E INK CORPORATION
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 0:
1. A benefit agent delivery system comprising:
a conductive layer;
a microcell layer comprising a plurality of microcells, wherein each microcell includes an opening, and wherein a medium comprising a carrier and a benefit agent is contained in the plurality of microcells;
a sealing layer spanning the opening of each microcell and comprising a polymeric material and a metallic material;
an electrode layer, and
a voltage source that is coupled to the conductive layer and the electrode layer;
wherein the conductive layer, the microcell layer, the sealing layer and the electrode layer are vertically stacked upon each other;
wherein the microcell layer and the sealing layer are disposed between the conductive layer and the electrode layer, and
wherein, when a voltage is applied from the voltage source between the conductive layer and the electrode layer, the metallic material is oxidized and removed from the sealing layer, creating a porous sealing layer.