- Patent Title: Flexible and stretchable printed circuits on stretchable substrates
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Application No.: US17051125Application Date: 2018-05-08
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Publication No.: US11412609B2Publication Date: 2022-08-09
- Inventor: Mark D. Edmundson , Paul D. Gassler
- Applicant: W.L. Gore & Associates, Inc.
- Applicant Address: US DE Newark
- Assignee: W.L. Gore & Associates, Inc.
- Current Assignee: W.L. Gore & Associates, Inc.
- Current Assignee Address: US DE Newark
- Agency: Greenberg Traurig, LLP
- International Application: PCT/US2018/031555 WO 20180508
- International Announcement: WO2019/216885 WO 20191114
- Main IPC: H05K1/02
- IPC: H05K1/02 ; H05K1/11 ; H05K1/03 ; H05K1/09

Abstract:
The present disclosure is flexible and stretchable conductive articles that include a printed circuit and a stretchable substrate. The printed circuit contains an electrically conductive trace. The electrically conductive trace may be positioned on the surface of or be imbibed into the pores through the thickness of a synthetic polymer membrane. The synthetic polymer membrane is compressed in the x-y direction such that buckling of the membrane occurs in the z-direction. Additionally, the synthetic polymer membrane may be porous or non-porous. In some embodiments, the synthetic polymer membrane is microporous. The printed circuit may be discontinuously bonded to the stretchable substrate. Advantageously, the flexible, conductive articles retain conductive performance over a range of stretch. In some embodiments, the conductive articles have negligible resistance change when stretched up to 50% strain. The printed circuits may be integrated into garments, such as smart apparel or other wearable technology.
Public/Granted literature
- US20210243890A1 Flexible and Stretchable Printed Circuits on Stretchable Substrates Public/Granted day:2021-08-05
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