EP0295494A3 - Mehrschichtfolien für Lautsprechermembransysteme - Google Patents

Mehrschichtfolien für Lautsprechermembransysteme Download PDF

Info

Publication number
EP0295494A3
EP0295494A3 EP88108730A EP88108730A EP0295494A3 EP 0295494 A3 EP0295494 A3 EP 0295494A3 EP 88108730 A EP88108730 A EP 88108730A EP 88108730 A EP88108730 A EP 88108730A EP 0295494 A3 EP0295494 A3 EP 0295494A3
Authority
EP
European Patent Office
Prior art keywords
thick
multilayer film
loss factor
membranes
mechanical loss
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP88108730A
Other languages
English (en)
French (fr)
Other versions
EP0295494A2 (de
Inventor
Joachim Dipl.-Ing. Wank
Dieter Dr. Freitag
Werner Dipl.-Ing. Waldenrath
Claus Dr. Burkhardt
Hans-Wolfgang Dipl.-Ing. Schmoranzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of EP0295494A2 publication Critical patent/EP0295494A2/de
Publication of EP0295494A3 publication Critical patent/EP0295494A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/122—Non-planar diaphragms or cones comprising a plurality of sections or layers
    • H04R7/125—Non-planar diaphragms or cones comprising a plurality of sections or layers comprising a plurality of superposed layers in contact
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2307/00—Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
    • H04R2307/029—Diaphragms comprising fibres

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Laminated Bodies (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Mehrschichtfolien einer Dicke von 0,05 bis 0,7 mm, be­ stehend aus einer 0,02 bis 0,6 mm dicken thermopla­ stischen Kunststoff- oder metallischen Folie mit einem E-Modul von 1000 bis 200000 MPa, einer 0,01 bis 0,3 mm dicken Folie aus thermoplastisch verarbeitbarem Material mit einem mechanischen Verlustfaktor tan δ im Tempera­ turbereich -40 bis +200°C zwischen 10⁻² und 10¹ und einer 0,05 bis 0,1 mm dicken thermoplastischen Siegel­ schicht, deren mechanischer Verlustfaktor tan δ im Temperaturbereich -40 bis 200°C zwischen 10⁻² und 10² liegt, sowie ihre Verwendung zur Herstellung von Laut­ sprechenmembranen oder -konen.
EP88108730A 1987-06-13 1988-06-01 Mehrschichtfolien für Lautsprechermembransysteme Withdrawn EP0295494A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873719879 DE3719879A1 (de) 1987-06-13 1987-06-13 Mehrschichtfolien fuer lautsprechermembransysteme
DE3719879 1987-06-13

Publications (2)

Publication Number Publication Date
EP0295494A2 EP0295494A2 (de) 1988-12-21
EP0295494A3 true EP0295494A3 (de) 1990-07-18

Family

ID=6329706

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108730A Withdrawn EP0295494A3 (de) 1987-06-13 1988-06-01 Mehrschichtfolien für Lautsprechermembransysteme

Country Status (3)

Country Link
EP (1) EP0295494A3 (de)
JP (1) JPS645300A (de)
DE (1) DE3719879A1 (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911066A1 (de) * 1989-04-06 1990-10-18 Bayer Ag Mehrschichtfolien fuer crash-pad-anwendung
DE4028888A1 (de) * 1990-09-12 1992-03-19 Bayer Ag Mehrschichtenfolien
WO2007083751A1 (ja) 2006-01-23 2007-07-26 Mitsubishi Plastics, Inc. 電気音響変換器用振動板
JP5127198B2 (ja) * 2006-01-23 2013-01-23 三菱樹脂株式会社 スピーカー用振動板
JP4990601B2 (ja) * 2006-11-20 2012-08-01 三菱樹脂株式会社 電気音響変換器用振動板および該振動板用のフィルム
CN114502376B (zh) * 2019-09-26 2025-04-01 3M创新有限公司 多层膜及其制备方法
CN113411738B (zh) * 2020-03-17 2023-08-22 3M创新有限公司 用于微型扬声器的音膜及其制备方法
CN113411737B (zh) 2020-03-17 2023-03-10 3M创新有限公司 用于微型扬声器的音膜及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435588A (en) * 1973-05-30 1976-05-12 Mitsui Petrochemical Ind Process
FR2345048A1 (fr) * 1976-03-19 1977-10-14 Harwood Hugh Membrane de transducteur electro-acoustique
EP0183516A2 (de) * 1984-11-28 1986-06-04 Polyplastics Co. Ltd. Verfahren zur Herstellung eines Verbundfilms

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1435588A (en) * 1973-05-30 1976-05-12 Mitsui Petrochemical Ind Process
FR2345048A1 (fr) * 1976-03-19 1977-10-14 Harwood Hugh Membrane de transducteur electro-acoustique
EP0183516A2 (de) * 1984-11-28 1986-06-04 Polyplastics Co. Ltd. Verfahren zur Herstellung eines Verbundfilms

Also Published As

Publication number Publication date
DE3719879A1 (de) 1988-12-29
EP0295494A2 (de) 1988-12-21
JPS645300A (en) 1989-01-10

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