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DE69018925D1 - Lautsprechermembran und Verfahren zu deren Herstellung. - Google Patents

Lautsprechermembran und Verfahren zu deren Herstellung.

Info

Publication number
DE69018925D1
DE69018925D1 DE69018925T DE69018925T DE69018925D1 DE 69018925 D1 DE69018925 D1 DE 69018925D1 DE 69018925 T DE69018925 T DE 69018925T DE 69018925 T DE69018925 T DE 69018925T DE 69018925 D1 DE69018925 D1 DE 69018925D1
Authority
DE
Germany
Prior art keywords
polyolefin
ultra
diaphragm
molecular weight
high molecular
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.)
Expired - Lifetime
Application number
DE69018925T
Other languages
English (en)
Other versions
DE69018925T2 (de
Inventor
Masaru Uryu
Kunihiko Tokura
Kyouji Muraoka
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.)
Sony Corp
Original Assignee
Mitsui Petrochemical Industries Ltd
Sony Corp
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 Mitsui Petrochemical Industries Ltd, Sony Corp filed Critical Mitsui Petrochemical Industries Ltd
Publication of DE69018925D1 publication Critical patent/DE69018925D1/de
Application granted granted Critical
Publication of DE69018925T2 publication Critical patent/DE69018925T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F10/00—Homopolymers and copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
    • C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L23/04—Homopolymers or copolymers of ethene
    • C08L23/06—Polyethene
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/06—Elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2308/00—Chemical blending or stepwise polymerisation process with the same catalyst
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2231/00—Details of apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor covered by H04R31/00, not provided for in its subgroups
    • H04R2231/001—Moulding aspects of diaphragm or surround
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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
    • H04R2307/025—Diaphragms comprising polymeric materials
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; 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)
  • Chemical & Material Sciences (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Physics & Mathematics (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Multimedia (AREA)
  • Manufacturing & Machinery (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
DE69018925T 1989-10-23 1990-10-22 Lautsprechermembran und Verfahren zu deren Herstellung. Expired - Lifetime DE69018925T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1275721A JP2670365B2 (ja) 1989-10-23 1989-10-23 振動板の製造方法

Publications (2)

Publication Number Publication Date
DE69018925D1 true DE69018925D1 (de) 1995-06-01
DE69018925T2 DE69018925T2 (de) 1995-12-07

Family

ID=17559455

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69018925T Expired - Lifetime DE69018925T2 (de) 1989-10-23 1990-10-22 Lautsprechermembran und Verfahren zu deren Herstellung.

Country Status (7)

Country Link
US (1) US5180785A (de)
EP (1) EP0424841B1 (de)
JP (1) JP2670365B2 (de)
KR (1) KR0175654B1 (de)
AT (1) ATE121899T1 (de)
CA (1) CA2028171C (de)
DE (1) DE69018925T2 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2665321A1 (fr) * 1990-07-23 1992-01-31 Fontaine Pierre Procede de fabrication de membranes pour applications electro-mecaniques, notamment pour tranducteurs electro-mecaniques et produit en resultant.
JP3030914B2 (ja) * 1991-05-16 2000-04-10 ソニー株式会社 音響振動板の製造方法
US6171534B1 (en) * 1992-01-15 2001-01-09 Patrick Arthur Leach Method of making a speaker cone and surround assembly
US5368695A (en) * 1992-05-15 1994-11-29 Sony Corporation Method for producing an acoustic vibration plate
US5920040A (en) * 1997-02-27 1999-07-06 Kenneth R. Lavacot Speaker diaphragm
JP2002320290A (ja) * 2001-04-19 2002-10-31 Pioneer Electronic Corp スピーカ用部品およびその製造方法
JP3913113B2 (ja) * 2002-06-04 2007-05-09 パイオニア株式会社 スピーカ振動板及びその製造方法
JP4710462B2 (ja) * 2005-07-21 2011-06-29 ソニー株式会社 スピーカ振動板及びスピーカ振動板製造方法
JP2007049471A (ja) * 2005-08-10 2007-02-22 Sony Corp スピーカ振動板
US20070128459A1 (en) * 2005-12-07 2007-06-07 Kurian Joseph V Poly(trimethylene terephthalate)/poly(alpha-hydroxy acid) films
JP5290132B2 (ja) * 2009-01-16 2013-09-18 ミネベア株式会社 スピーカ用振動板およびこれを用いたスピーカ
JP6074584B2 (ja) * 2012-01-25 2017-02-08 パナソニックＩｐマネジメント株式会社 高アスペクト比幅狭型振動板または薄型振動板の製造方法と、この製造方法で製造されたスピーカ用振動板、スピーカ、電子機器、移動体装置。
KR101583742B1 (ko) 2013-11-14 2016-01-08 한국생산기술연구원 아민과 이산화탄소 및 에폭시 화합물로부터 치환우레아 및 카바메이트류 화합물의 제조방법
EP3086570B1 (de) * 2015-04-24 2019-09-04 Teijin Aramid B.V. Lautsprecher und folie zur verwendung in der lautsprechermembran

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4471085A (en) * 1982-03-08 1984-09-11 Matsushita Electric Industrial Co., Ltd. Diaphragm material for loudspeakers
JPS58182994A (ja) * 1982-04-20 1983-10-26 Toyobo Co Ltd 音響材料
JPH0642755B2 (ja) * 1983-02-14 1994-06-01 松下電器産業株式会社 スピ−カ用振動板の製造方法
JPH0692457B2 (ja) * 1985-05-30 1994-11-16 日本石油株式会社 射出成形性の改良された超高分子量ポリエチレン組成物
DE3681140D1 (de) * 1985-06-27 1991-10-02 Mitsui Petrochemical Ind Polyaethylenzusammensetzung.
JPH01295598A (ja) * 1988-02-26 1989-11-29 Yasuhiro Shinjiyou スピーカー

Also Published As

Publication number Publication date
EP0424841B1 (de) 1995-04-26
CA2028171A1 (en) 1991-04-24
KR910009114A (ko) 1991-05-31
EP0424841A2 (de) 1991-05-02
JPH03136598A (ja) 1991-06-11
EP0424841A3 (en) 1992-11-25
CA2028171C (en) 1998-07-14
DE69018925T2 (de) 1995-12-07
JP2670365B2 (ja) 1997-10-29
US5180785A (en) 1993-01-19
KR0175654B1 (ko) 1999-05-15
ATE121899T1 (de) 1995-05-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: MITSUI CHEMICALS, INC., TOKIO/TOKYO, JP SONY CORP.

8327 Change in the person/name/address of the patent owner

Owner name: SONY CORP., TOKIO/TOKYO, JP