The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 03, 2020
Filed:
Apr. 27, 2018
Henkel Ip & Holding Gmbh, Duesseldorf, DE;
Henkel Ag & Co. Kgaa, Duesseldorf, DE;
Chenyu Huang, Shanghai, CN;
Lily Yan, Shanghai, CN;
Qili Wu, Shanghai, CN;
Xiping He, Cerritos, CA (US);
Li Yao, Irvine, CA (US);
Henkel IP & Holding GmbH, Duesseldorf, DE;
Henkel AG & Co. KGaA, Duesseldorf, DE;
Abstract
The present invention relates to a conductive compositions for low frequency EMI shielding. An EMI shielding composition according to the present invention comprises a resin comprising a thermoplastic resin and/or a thermoset resin, a solvent and/or a reactive diluent and particles, wherein said particles comprise a mixture of magnetic particles and electrically conductive particles or magnetic particles coated with electrically conductive material or a mixture of magnetic particles coated with electrically conductive material and electrically conductive particles and wherein, said composition comprises ≥10% magnetic particles by weight, by total weight of the composition. The EMI shielding composition according to the present invention has good electrical and magnetic conductivity and is suitable as a drop-in solution for EMI shielding in a wide frequency range, and especially at low frequency ranges.