EP 0121655 A3 19860416 - FIBRE COMPOSITE
Title (en)
FIBRE COMPOSITE
Publication
Application
Priority
DE 3307066 A 19830301
Abstract (en)
[origin: US4581284A] A fiber compound material of individual layers of superposed fiber plies such as glass fiber prepregs which are joined together by a matrix of a resin and a hardener and act as a load carrying structure to absorb electromagnetic waves. Radar beam-absorbing fillers, for instance iron powder or soot, are included, in concentrations varying from the outside to the inside, in the individual plies of the fiber compound material.
IPC 1-7
IPC 8 full level
B32B 5/28 (2006.01); B32B 7/02 (2006.01); H01Q 17/00 (2006.01)
CPC (source: EP US)
H01Q 17/002 (2013.01 - EP US); Y10S 428/902 (2013.01 - EP US); Y10S 428/919 (2013.01 - EP US); Y10T 428/25 (2015.01 - EP US); Y10T 428/256 (2015.01 - EP US); Y10T 428/2982 (2015.01 - EP US); Y10T 442/67 (2015.04 - EP US)
Citation (search report)
- [Y] US 4162496 A 19790724 - DOWNEN DAVID N [US], et al
- [Y] DE 1591244 A1 19701029 - KALLE AG
- [A] US 3440655 A 19690422 - WESCH LUDWIG, et al
- [A] ZEITSCHRIFT FÜR ANGEWANDTE PHYSIK, Band 16, Nr. 3, 17. September 1963, Seiten 162-167; H.W. HELBERG et al.: "Ein Mehrschichtabsorber für elektromagnetische Zentimeterwellen"
Designated contracting state (EPC)
FR GB IT
DOCDB simple family (publication)
EP 0121655 A2 19841017; EP 0121655 A3 19860416; DE 3307066 A1 19840913; JP S59176035 A 19841005; US 4581284 A 19860408
DOCDB simple family (application)
EP 84100476 A 19840118; DE 3307066 A 19830301; JP 3740584 A 19840301; US 58444284 A 19840228