Back to results
US 12,604,449 B2Granted
Electromagnetic absorbing composites
Assignee3M Innovative Properties Company
InventorsAdam D. Miller, Sergei A. Manuilov, Michael S. Graff, Dipankar Ghosh
Life of this patent
Estimating the term…
Abstract
A composite comprising a polymeric matrix and EM absorbers dispersed within the polymeric matrix. Each EM absorber comprises a dielectric flake, and a continuous magnetic coating on at least one major surface of the dielectric flake. The EM absorbers function as dielectric and magnetic absorbers in the 1-100 GHz frequency range. The composite can be used as an electromagnetic shielding article to mitigate electromagnetic interference in, for example, high speed, high frequency (HSHF) consumer electronics.
Claims20
A composite comprising:
- a polymeric matrix;
- and
- electromagnetic (EM) absorbers dispersed within the polymeric matrix, each EM absorber comprising a dielectric flake and a magnetic coating that completely encapsulates the dielectric flake,
- wherein the dielectric flake comprises an aluminate glass or a silicate glass, and
- wherein the EM absorbers function as dielectric and magnetic absorbers in the 1-100 GHz frequency range.
2 more elements
Dependencies are inferred from the claim text.