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1. (WO2018081394) HIGH-DIELECTRIC-LOSS COMPOSITES FOR ELECTROMAGNETIC INTERFERENCE (EMI) APPLICATIONS

Pub. No.:    WO/2018/081394    International Application No.:    PCT/US2017/058488
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Fri Oct 27 01:59:59 CEST 2017
IPC: H05K 9/00
Applicants: 3M INNOVATIVE PROPERTIES COMPANY
Inventors: GHOSH, Dipankar
Title: HIGH-DIELECTRIC-LOSS COMPOSITES FOR ELECTROMAGNETIC INTERFERENCE (EMI) APPLICATIONS
Abstract:
Electromagnetic interference (EMI) shielding composites and methods of making and using the same are described. The composites include high-loading-level ceramic particles distributed in a low-dielectric-loss matrix material having a dielectric loss tangent in the range of about 0.0001 to about 0.005. In one case, the composite includes CuO particles distributed in silicone. The composites exhibit dielectric absorber properties in the high frequency range.