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US 11,910,584 B2Granted
Composite material
AssigneeLG Chem, Ltd.
InventorsDong Woo Yoo, Yeon Soo Lee, Jin Kyu Lee
Life of this patent
Estimating the term…
Abstract
The present application relates to a composite material. The present application can provide a composite material having high magnetic permeability and also having excellent mechanical properties such as flexibility. The composite material may be used in various applications, and for example, may be used as an electromagnetic-wave shielding material and the like.
Claims11
A composite material, comprising:
- a first region formed of a first metal foam layer and
- a second region formed of a second metal foam layer,
- wherein the first metal foam layer has a conductive metal component,
- wherein the conductive metal component has a conductivity at 20° C. of 8 MS/m or more,
- wherein the second metal foam layer has a soft magnetic metal component, and
- wherein the metal foam layers of the first region and the second region are laminated on each other,
- said composite material further comprising a conductive material-containing layer, wherein the conductive material-containing layer is on the first or second metal foam layer,
- wherein the first metal foam layer and the second metal foam layer are laminated on each other in a staggered pattern such that a portion of a surface of the first metal foam layer facing the second metal foam layer does not overlap with a surface of the second metal foam layer facing the first metal foam layer, and/or a portion of the surface of the second metal foam layer facing the first metal foam layer does not overlap with the surface of the first metal foam layer facing the second metal foam layer, and
- the conductive material-containing layer is formed on the portion of the surface of the first metal foam layer facing the second metal foam layer which does not overlap with the surface of the second metal foam layer facing the first metal foam layer, or the portion of the surface of the second metal foam layer facing the first metal foam layer which does not overlap with the surface of the first metal foam layer facing the second metal foam layer.
6 more elements
Dependencies are inferred from the claim text.