Wave absorber
US5885692A · kind A · utility
4Cited by
5References
3Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Mar 23, 1999 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24999
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A wave absorber comprising a foamed resin and a dielectric loss material dispersed therein, wherein the foamed resin is a foamed melamine resin obtained by foaming a resin composition comprising, as the main components, a melamine-formaldehyde condensate and a foaming agent. The wave absorber alleviates the problems of the prior art, and is lightweight and superior in self-extinguishing property, and shows an excellent wave-absorbing property owing to a uniformly dispersed dielectric loss material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.