KR910000943B1 - 음향 진동판 및 음향 진동판용 폴리프로필렌 조성물 - Google Patents

음향 진동판 및 음향 진동판용 폴리프로필렌 조성물 Download PDF

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Publication number
KR910000943B1
KR910000943B1 KR1019870000100A KR870000100A KR910000943B1 KR 910000943 B1 KR910000943 B1 KR 910000943B1 KR 1019870000100 A KR1019870000100 A KR 1019870000100A KR 870000100 A KR870000100 A KR 870000100A KR 910000943 B1 KR910000943 B1 KR 910000943B1
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KR
South Korea
Prior art keywords
polypropylene
acoustic diaphragm
composition
acoustic
weight
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
Application number
KR1019870000100A
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English (en)
Korean (ko)
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KR870008944A (ko
Inventor
쯔또무 모데끼
구니히로 야마구찌
히사오 이이즈까
Original Assignee
칫소 가부시끼가이샤
노기 사다오
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Publication date
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Publication of KR870008944A publication Critical patent/KR870008944A/ko
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Publication of KR910000943B1 publication Critical patent/KR910000943B1/ko
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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
    • 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
    • C08L23/10—Homopolymers or copolymers of propene
    • C08L23/12—Polypropene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L53/00—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
    • C08L53/02—Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers of vinyl-aromatic monomers and conjugated dienes

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
KR1019870000100A 1986-03-05 1987-01-09 음향 진동판 및 음향 진동판용 폴리프로필렌 조성물 Expired KR910000943B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP61047930A JPS62205147A (ja) 1986-03-05 1986-03-05 音響振動板及び音響振動板用ポリプロピレン組成物
JP47930 1986-03-05
JP47,930 1986-03-05

Publications (2)

Publication Number Publication Date
KR870008944A KR870008944A (ko) 1987-10-22
KR910000943B1 true KR910000943B1 (ko) 1991-02-19

Family

ID=12789086

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019870000100A Expired KR910000943B1 (ko) 1986-03-05 1987-01-09 음향 진동판 및 음향 진동판용 폴리프로필렌 조성물

Country Status (5)

Country Link
US (1) US4761451A (https=)
EP (1) EP0241667B1 (https=)
JP (1) JPS62205147A (https=)
KR (1) KR910000943B1 (https=)
DE (1) DE3786290T2 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101139877B1 (ko) * 2011-11-04 2012-05-02 한일화학고무공업(주) 사출성형으로 콘지와 에지가 일체화된 스피커용 진동판

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63195000A (ja) * 1987-02-10 1988-08-12 株式会社ブンチヨウ 消しゴム
DE3711077A1 (de) * 1987-04-02 1988-10-13 Frenzelit Werke Gmbh & Co Kg Asbestfreier werkstoff zur verwendung als dicht-, daempf- und/oder trennelement
SE466312B (sv) * 1987-05-11 1992-01-27 Tetra Pak Holdings Sa Behaallarlock med aaterfoerslutbar oeppningsanordning innefattande en polyolefin och oorganiskt fyllmedel
JPH02219844A (ja) * 1989-02-21 1990-09-03 Sumitomo Chem Co Ltd ゴム変性スチレン系樹脂組成物
US5342862A (en) * 1990-03-13 1994-08-30 Biolan Corporation Process for controlling the photodegradation of mulch film
US5256734A (en) * 1991-02-15 1993-10-26 Mitsui Toatsu Chemicals, Inc. Polypropylene resin composition and method for manufacturing coated molded article of the resin composition
US5369174A (en) * 1992-04-02 1994-11-29 Phillips Petroleum Company Blends for enhancing properties of vinyl aromatic-conjugated diene block copolymers
JPH0629297U (ja) * 1992-08-29 1994-04-15 大日化成工業株式会社 スピーカー用振動板
US5422447A (en) * 1992-09-01 1995-06-06 Key Tronic Corporation Keyboard with full-travel, self-leveling keyswitches and return mechanism keyswitch
US5358344A (en) * 1992-09-01 1994-10-25 Key Tronic Corporation Keyboard with full-travel, self-leveling keyswitches
CN1050259C (zh) * 1996-08-21 2000-03-08 黄新民 喇叭音盆的制造方法及其结构
US6060009A (en) * 1998-02-18 2000-05-09 3M Innovative Properties Company Method of laminate formation
US6359068B1 (en) * 1998-02-18 2002-03-19 3M Innovative Properties Company High-friction polymer blends comprising polypropylene and thermoplastic block copolymers
US6590993B2 (en) * 1999-09-06 2003-07-08 Koninklijke Philips Electronics N.V. Panel-shaped loudspeaker
US6172144B1 (en) * 1999-09-13 2001-01-09 Amonollah Yekani Process and composition for producing articles from rice hulls
US20020161072A1 (en) * 2001-01-22 2002-10-31 Philip Jacoby Wood fiber-filled polypropylene
KR100418529B1 (ko) * 2001-01-31 2004-02-11 채종희 자동차 매트용 열가소성 스티렌/부타디엔/스티렌 조성물 및 그의 제조방법
US8071681B2 (en) 2004-08-13 2011-12-06 Exxonmobil Chemical Patents Inc. Polymeric compositions including their uses and methods of production
US20080212800A1 (en) * 2005-04-20 2008-09-04 Yoshimichi Kajihara Diaphragm for Speaker, Method for Producing Same, Speaker Using Such Diaphragm, and Apparatus Using Such Speaker
WO2006114980A1 (ja) * 2005-04-20 2006-11-02 Matsushita Electric Industrial Co., Ltd. スピーカ用振動板とその製造方法、この振動板を用いたスピーカおよびこのスピーカを用いた機器
EP3056024A1 (de) * 2013-10-11 2016-08-17 Isovolta AG Verfahren zur herstellung einer folie für eine lautsprecher-membran oder eine mikrophon-membran
WO2015123334A1 (en) 2014-02-11 2015-08-20 Flint Hills Resources, Lp Blended compositions, methods for making same, and articles made therefrom
CN107793599B (zh) * 2017-11-02 2019-11-22 株洲时代新材料科技股份有限公司 一种橡胶材料、其制备方法以及包含其的声呐导流罩壳板
CN110784805A (zh) * 2019-10-31 2020-02-11 歌尔股份有限公司 一种用于微型发声装置的振膜及微型发声装置
CN112511957A (zh) * 2020-11-02 2021-03-16 歌尔股份有限公司 用于发声装置的振动板及发声装置
WO2025068267A1 (en) * 2023-09-27 2025-04-03 Borealis Ag A mechanical polypropylene recycling process

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131745A (ja) * 1974-09-11 1976-03-18 Sumitomo Chemical Co Netsukasoseijushisoseibutsu
IT1167711B (it) * 1981-03-12 1987-05-13 Montefina Sa Laminato coestruso consistente in almeno un foglio di materiale polimerico a base di polistirene antiurto
JPS57154994A (en) * 1981-03-20 1982-09-24 Kuraray Co Ltd Sound diaphragm
JPS583499A (ja) * 1981-06-30 1983-01-10 Kuraray Co Ltd 音響振動板
JPS57192447A (en) * 1981-05-23 1982-11-26 Nippon Steel Chem Co Ltd Production of pearlescent thermoplastic resin product
JPS5853560A (ja) * 1981-09-28 1983-03-30 Nippon Plast Co Ltd ステアリングホイ−ル
US4471085A (en) * 1982-03-08 1984-09-11 Matsushita Electric Industrial Co., Ltd. Diaphragm material for loudspeakers
JPS58187442A (ja) * 1982-04-28 1983-11-01 Asahi Chem Ind Co Ltd ポリオレフィン系重合体組成物
JPS5922948A (ja) * 1982-07-06 1984-02-06 Chisso Corp シ−ト用ポリプロピレン系樹脂組成物
JPS59149939A (ja) * 1983-02-16 1984-08-28 Mitsui Petrochem Ind Ltd ポリプロピレン組成物
JPS60133039A (ja) * 1983-12-21 1985-07-16 Mitsubishi Petrochem Co Ltd オレフィン重合体系二次加工用シート
JPS60202144A (ja) * 1984-03-27 1985-10-12 Sumitomo Chem Co Ltd ポリプロピレン樹脂組成物
JPH1095056A (ja) * 1996-09-24 1998-04-14 Totani Giken Kogyo Kk 製袋機のカッタ駆動装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101139877B1 (ko) * 2011-11-04 2012-05-02 한일화학고무공업(주) 사출성형으로 콘지와 에지가 일체화된 스피커용 진동판

Also Published As

Publication number Publication date
EP0241667A2 (en) 1987-10-21
US4761451A (en) 1988-08-02
KR870008944A (ko) 1987-10-22
DE3786290D1 (de) 1993-07-29
JPH0513182B2 (https=) 1993-02-19
DE3786290T2 (de) 1993-11-18
EP0241667A3 (en) 1990-02-14
EP0241667B1 (en) 1993-06-23
JPS62205147A (ja) 1987-09-09

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