DE4001059C2 - - Google Patents

Info

Publication number
DE4001059C2
DE4001059C2 DE4001059A DE4001059A DE4001059C2 DE 4001059 C2 DE4001059 C2 DE 4001059C2 DE 4001059 A DE4001059 A DE 4001059A DE 4001059 A DE4001059 A DE 4001059A DE 4001059 C2 DE4001059 C2 DE 4001059C2
Authority
DE
Germany
Prior art keywords
resin
melamine
membrane
web
triazine
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 - Fee Related
Application number
DE4001059A
Other languages
German (de)
English (en)
Other versions
DE4001059A1 (de
Inventor
Yoshihisa Maebashi Gunma Jp Suda
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.)
Mitsubishi Pencil Co Ltd
Original Assignee
Mitsubishi Pencil Co Ltd
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 Mitsubishi Pencil Co Ltd filed Critical Mitsubishi Pencil Co Ltd
Publication of DE4001059A1 publication Critical patent/DE4001059A1/de
Application granted granted Critical
Publication of DE4001059C2 publication Critical patent/DE4001059C2/de
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
    • C04B35/532—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components containing a carbonisable binder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Ceramic Products (AREA)
DE4001059A 1989-01-20 1990-01-16 Verfahren zum herstellen einer vollkohlenstoffmembrane fuer akustische anwendungszwecke Granted DE4001059A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1009976A JPH02243097A (ja) 1989-01-20 1989-01-20 全炭素質音響機器用振動板の製造法

Publications (2)

Publication Number Publication Date
DE4001059A1 DE4001059A1 (de) 1990-08-09
DE4001059C2 true DE4001059C2 (enExample) 1992-07-30

Family

ID=11734943

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4001059A Granted DE4001059A1 (de) 1989-01-20 1990-01-16 Verfahren zum herstellen einer vollkohlenstoffmembrane fuer akustische anwendungszwecke

Country Status (6)

Country Link
US (1) US5152938A (enExample)
JP (1) JPH02243097A (enExample)
DE (1) DE4001059A1 (enExample)
FR (1) FR2642254A1 (enExample)
GB (1) GB2229338A (enExample)
IT (1) IT1238069B (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001160998A (ja) * 1999-12-01 2001-06-12 Mitsubishi Pencil Co Ltd 圧電発音体用振動板とその製造方法
JP3948000B2 (ja) * 2003-08-26 2007-07-25 松下電器産業株式会社 高熱伝導性部材及びその製造方法ならびにそれを用いた放熱システム
US20070187171A1 (en) * 2006-01-27 2007-08-16 Victor Company Of Japan, Limited Production method of an acoustic diaphragm, acoustic diaphragm, and a speaker
WO2008084641A1 (ja) * 2006-12-22 2008-07-17 Panasonic Corporation スピーカ用振動板と、スピーカ用フレームと、スピーカ用ダストキャップと、これらを用いたスピーカと装置と、スピーカ用部品の製造方法
JP6465024B2 (ja) * 2013-07-31 2019-02-06 日産化学株式会社 炭素材料分散膜形成用組成物
US9676631B2 (en) 2014-07-21 2017-06-13 Lori Bracamonte Reaction bonded silicon carbide bodies made from high purity carbonaceous preforms
CN111423244A (zh) * 2020-03-27 2020-07-17 深圳市威泽科技有限公司 一种耳机使用的碳素材料及制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5546661A (en) * 1978-09-29 1980-04-01 Pioneer Electronic Corp Diaphragm for acoustic apparatus and its manufacture
JPS56103244A (en) * 1980-12-29 1981-08-18 Pioneer Electronic Corp Molding material
JPS5821997A (ja) * 1981-07-31 1983-02-09 Pioneer Electronic Corp スピ−カ用振動板
JPS59191779A (ja) * 1983-04-15 1984-10-30 Mitsubishi Pencil Co Ltd 鉛筆芯の製造方法
JPS60210097A (ja) * 1984-04-03 1985-10-22 Totoku Electric Co Ltd 耐熱ボイスコイルの製造法
JPS61151282A (ja) * 1984-12-25 1986-07-09 Mitsubishi Pencil Co Ltd 鉛筆芯の製造方法
JPH0720312B2 (ja) * 1985-04-15 1995-03-06 三菱鉛筆株式会社 音響機器用振動板の製造法
JPS63171100A (ja) * 1987-01-09 1988-07-14 Mitsubishi Pencil Co Ltd 全炭素質スピ−カ−用振動板の製造方法
JPS63175600A (ja) * 1987-01-16 1988-07-19 Mitsubishi Pencil Co Ltd 全炭素質音響機器用振動板の製造方法
US5149470A (en) * 1988-08-24 1992-09-22 Mitsubishi Pencil Co., Ltd. Method of making a diaphragm of carbonaceous material

Also Published As

Publication number Publication date
FR2642254A1 (fr) 1990-07-27
IT9019107A1 (it) 1991-07-19
IT1238069B (it) 1993-07-03
GB9001165D0 (en) 1990-03-21
US5152938A (en) 1992-10-06
JPH02243097A (ja) 1990-09-27
IT9019107A0 (it) 1990-01-19
DE4001059A1 (de) 1990-08-09
GB2229338A (en) 1990-09-19

Similar Documents

Publication Publication Date Title
DE1954233C3 (de) Verfahren zur Herstellung einer hydrolysebeständigen Bindung zwischen Glas und Polytetrafluorethylen
DE3005057C2 (enExample)
EP0111860B1 (de) Verfahren zum Modifizieren von elastischen Aminoplast-Schaumstoffen
US2566960A (en) Mineral fiber mat and process of making same
DE2132323A1 (de) Mikroporoese Membran aus Polyvinylidenfluorid sowie Verfahren und Vorrichtung zu ihrer Herstellung
DE4001059C2 (enExample)
DE3108387C2 (enExample)
DE2938182C2 (de) Verfahren zur Herstellung einer akustischen Membran
DE1645264B2 (de) Verfahren zur herstellung von vielporigen synthetischen polymerisaten
DE2236456C3 (de) Verfahren zum Herstellen eines gemischten Polymerisats
DE3050026C2 (de) Akustische Membran
DE4018430A1 (de) Kugelfoermige koernchen aus oxiden der seltenen erden und verfahren zu deren herstellung
DE69802471T2 (de) Yttriumoxid-Aluminiumoxid Kompositteilchen und Verfahren zu deren Herstellung
DE1569438B2 (de) Hitzehärtbare Formmassen
CA2024798A1 (en) Method for production of particulate polymers
DE3921622A1 (de) Verfahren zur herstellung eines voll kohlenstoffhaltigen diaphragmas fuer eine akustikanlage
EP0532113B1 (de) Verfahren zur Herstellung von Formkörpern aus Keramik oder Glas
DE3220559C2 (enExample)
DE3806755A1 (de) Verfahren zur herstellung von lautsprechermembranen aus einem vollstaendig kohlenstoffhaltigen material
DE297308C (enExample)
DE1646655A1 (de) Keramikerzeugnisse und Verfahren zu ihrer Herstellung
DE2837900B2 (de) Verfahren zur Herstellung von SiIiciumcarbidformkörpern
DE2604793C3 (de) Verfahren zur Herstellung eines Schaumkeramikelements
DE1301066B (de) Verfahren zur Herstellung von vielporigen synthetischen Polymerisaten
DE2122367A1 (de) Verfahren zur Erzeugung eines porösen Materials

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee