• 专利标题:   Operating benefit agent delivery system, involves providing benefit agent delivery system and applying voltage potential difference between conductive layer and electrode layer to generate electric field having polarity causing migration of metallic material on microcell adjacent to conductive layer.
  • 专利号:   US2023165787-A1
  • 发明人:   LIU L
  • 专利权人:   E INK CALIFORNIA LLC
  • 国际专利分类:   A61K009/00, A61K009/70, A61M037/00
  • 专利详细信息:   US2023165787-A1 01 Jun 2023 A61K-009/00 202350 English
  • 申请详细信息:   US2023165787-A1 US159611 25 Jan 2023
  • 优先权号:   US941216P, US159611

▎ 摘  要

NOVELTY - Operating a benefit agent delivery system, involves providing a benefit agent delivery system comprising (a) a conductive layer, (b) a plural of microcells, each microcell comprising an opening and containing a carrier and a benefit agent, (c) a sealing layer spanning the opening of each microcell and comprising a polymeric material and a metallic material, (d) an electrode layer; and (e) a voltage source; where the conductive layer, the microcell layer, the sealing layer and the electrode layer are vertically stacked upon each other; where the microcell layer and the sealing layer are arranged between the conductive layer and the electrode layer; and where the voltage source is coupled to the conductive layer and the electrode layer; applying a voltage potential difference between the conductive layer and the electrode layer to generate an electric field having a polarity causing the migration of the metallic material onto a surface of the microcell adjacent to the conductive layer. USE - Method for operating a benefit agent delivery system. ADVANTAGE - The method provides small, simple, inexpensive, versatile, low power, and safe benefit agents delivery systems. The delivery system has improved the flexure resistance of the embossed microcells. The rate of delivery of the benefit agent is controlled by the selecting the applied voltage potential. The system provide delivering varying amounts of benefit agents from the same delivery system at different times, and delivering multiple benefit agents at the same or different times from the same benefit agent delivery system. DETAILED DESCRIPTION - Operating a benefit agent delivery system, involves providing a benefit agent delivery system comprising (a) a conductive layer, (b) a plural of microcells, each microcell comprising an opening and containing a carrier (140) and a benefit agent (150), (c) a sealing layer (160) spanning the opening of each microcell and comprising a polymeric material and a metallic material, (d) an electrode layer; and (e) a voltage source; where the conductive layer, the microcell layer, the sealing layer and the electrode layer are vertically stacked upon each other; where the microcell layer and the sealing layer are arranged between the conductive layer (120) and the electrode layer (190); and where the voltage source is coupled to the conductive layer and the electrode layer; applying a voltage potential difference between the conductive layer and the electrode layer to generate an electric field having a polarity causing the migration of the metallic material onto a surface of the microcell adjacent to the conductive layer. DESCRIPTION OF DRAWING(S) - The drawing shows an overview of the benefit agent delivery system. 120Conductive layer 140Carrier 150Benifit agent 160Seaking layer 190Electrode layer