Global Patent Index - EP 1097254 A1

EP 1097254 A1 2001-05-09 - FOAM-COATING METHOD FOR MAKING ANTENNA ELEMENTS

Title (en)

FOAM-COATING METHOD FOR MAKING ANTENNA ELEMENTS

Title (de)

VERFAHREN ZUR BESCHICHTUNG EINES SCHAUMSTOFFS FÜR DIE HERSTELLUNG VON ANTENNENELEMENTEN

Title (fr)

PROCEDE DE REVETEMENT DE MOUSSE POUR LA FABRICATION D'ELEMENTS D'ANTENNES

Publication

EP 1097254 A1 (FR)

Application

EP 99926541 A

Priority

  • FR 9901527 W
  • FR 9808182 A

Abstract (en)

[origin: FR2780319A1] An antenna element production process involves direct metal and/or graphite coating of a synthetic foam block of acidic pH from a coating bath. An antenna element is produced by direct metal and/or graphite coating of a synthetic foam block of pH below 7 from a coating bath. An Independent claim is also included for an antenna element produced by the above process and comprising a foam block having a directly contacting metal layer, preferably one or more metallized portions and one or more graphite coated portions. Preferred Features: The block may have an irregular shape with one or more non-planar faces and optionally with one or more holes (of \-0.2 mm diameter) and/or slits. The entire foam block is immersed in the metal and/or graphite coating bath for 10-20 min. Alternatively, one surface of the block is dipped in a metallization bath and another surface is dipped in a graphite bath. Parts of the foam block may be temporarily covered with masking elements or the metal coating may be removed from parts of the metallized block. The metal coating consists of copper, nickel, gold, silver or titanium. The block may be chemically and/or physically pretreated to improve deposition of metal and/or graphite and, after metallization, may be electroplated.

IPC 1-7 (main, further and additional classification)

C23C 18/16; C08J 9/36; C08J 9/40; H01Q 9/04

IPC 8 full level (invention and additional information)

C08J 9/36 (2006.01); C08J 9/40 (2006.01); C23C 2/04 (2006.01); C23C 18/16 (2006.01); H01Q 1/36 (2006.01); H01Q 1/38 (2006.01); H01Q 9/04 (2006.01); H01Q 13/10 (2006.01); H01Q 13/16 (2006.01)

CPC (invention and additional information)

H01Q 1/36 (2013.01); C23C 2/04 (2013.01); H01Q 13/10 (2013.01); H01Q 13/16 (2013.01)

Citation (search report)

See references of WO 9967441A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2780319 A1 19991231; FR 2780319 B1 20010727; AT 251679 T 20031015; AU 4375299 A 20000110; DE 69911969 D1 20031113; DE 69911969 T2 20040812; EP 1097254 A1 20010509; EP 1097254 B1 20031008; JP 2002518964 A 20020625; WO 9967441 A1 19991229

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