EP 1410681 B1 20050330 - PRODUCTION OF NON-PLANAR MEMBRANES FOR ELECTROACOUSTIC CONVERTERS
Title (en)
PRODUCTION OF NON-PLANAR MEMBRANES FOR ELECTROACOUSTIC CONVERTERS
Title (de)
HERSTELLUNG NICHT-FLACHER MEMBRANEN FÜR ELEKTROAKUSTISCHE WANDLER
Title (fr)
FABRICATION DE MEMBRANES NON PLATES POUR CONVERTISSEURS ELECTROACOUSTIQUES
Publication
Application
Priority
- DE 10135414 A 20010725
- EP 0207603 W 20020709
Abstract (en)
[origin: WO03013187A1] The invention relates to a method for production of non-planar membranes for electroacoustic converters, comprising a core layer of poly(meth)acrylimide foam and at least one outer layer, characterised in that: a) the outer layer and the core layer are laminated using a pressure of <0,3MPa and a temperature of ≥160 °C and then b) the composite obtained is moulded using a cold mould with a temperature of less than 100 °C at a pressure of 0.3 MPa and a temperature of 160 °C and, at the same time, at least that side of the core layer in contact with the outer layer is compressed. Said membranes thus produced have excellent rigidity and in particular the cover layers have a high peeling resistance.
IPC 1-7
IPC 8 full level
H04R 7/02 (2006.01); H04R 7/12 (2006.01); H04R 31/00 (2006.01)
CPC (source: EP US)
H04R 7/125 (2013.01 - EP US); H04R 31/003 (2013.01 - EP US); Y10T 29/49005 (2015.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03013187 A1 20030213; AT E292361 T1 20050415; CA 2455619 A1 20030213; CN 100542334 C 20090916; CN 1513279 A 20040714; DE 10135414 C1 20030313; DE 50202642 D1 20050504; EP 1410681 A1 20040421; EP 1410681 B1 20050330; ES 2238624 T3 20050901; JP 2004537243 A 20041209; JP 3999198 B2 20071031; MY 131414 A 20070830; US 2004247152 A1 20041209
DOCDB simple family (application)
EP 0207603 W 20020709; AT 02791447 T 20020709; CA 2455619 A 20020709; CN 02811269 A 20020709; DE 10135414 A 20010725; DE 50202642 T 20020709; EP 02791447 A 20020709; ES 02791447 T 20020709; JP 2003518227 A 20020709; MY PI20022062 A 20020604; US 48478104 A 20040123