RADIO WAVE ABSORBER, ARTICLE WITH RADIO WAVE ABSORBER, AND LAMINATE FOR RADIO WAVE ABSORBER

Title:

RADIO WAVE ABSORBER, ARTICLE WITH RADIO WAVE ABSORBER, AND LAMINATE FOR RADIO WAVE ABSORBER

Document Type and Number:

Japanese Patent JP2023051589

Kind Code:

A

Abstract:

To provide a radio wave absorber advantageous from the viewpoint of suppressing degradation of radio wave absorption performance due to moisture release from an adherend in moisture absorption state.SOLUTION: A radio wave absorber 1a includes a resistive layer 10, a reflector 30, a dielectric layer 20, and an adhesive layer 40. The reflector 30 reflects radio waves. The dielectric layer 20 is positioned between the resistive layer 10 and the reflector 30 in a thickness direction of the resistive layer 10. The resistive layer 10 is positioned between the dielectric layer 20 and the adhesive layer 40 in the thickness direction of the resistive layer 10. Under conditions of 100°C, a tensile shear load T is applied along a direction parallel to a surface of a plate 2 to the radio wave absorber 1a attached to the plate 2 with the adhesive layer 40 in contact with the surface of the plate 2. In this case, the shear adhesive strength F100 of the adhesive layer 40 is 10.0 N/cm2 or higher.SELECTED DRAWING: Figure 1

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Inventors:

UKEI HIROICHI
USUI MASAKI
FUKUYA KAZUHIRO

Application Number:

JP2021162401A

Publication Date:

April 11, 2023

Filing Date:

September 30, 2021

Export Citation:

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Assignee:

NITTO DENKO CORP

International Classes:

H05K9/00; B32B7/025; B32B27/00; C09J7/38; C09J201/00; H01Q17/00

Attorney, Agent or Firm:

Koichi Kamata
Mitsuhiko Nishio

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