GB2046274B - Moulding compositions and acoustic articles moulded therefrom - Google Patents

Moulding compositions and acoustic articles moulded therefrom

Info

Publication number
GB2046274B
GB2046274B GB8009358A GB8009358A GB2046274B GB 2046274 B GB2046274 B GB 2046274B GB 8009358 A GB8009358 A GB 8009358A GB 8009358 A GB8009358 A GB 8009358A GB 2046274 B GB2046274 B GB 2046274B
Authority
GB
United Kingdom
Prior art keywords
moulding compositions
articles moulded
moulded therefrom
acoustic articles
acoustic
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
GB8009358A
Other versions
GB2046274A (en
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Priority claimed from JP3326279A external-priority patent/JPS6048801B2/en
Priority claimed from JP3326179A external-priority patent/JPS6048803B2/en
Priority claimed from JP54033263A external-priority patent/JPS6056360B2/en
Priority claimed from JP6395779A external-priority patent/JPS55127445A/en
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of GB2046274A publication Critical patent/GB2046274A/en
Application granted granted Critical
Publication of GB2046274B publication Critical patent/GB2046274B/en
Expired 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
    • 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
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
GB8009358A 1979-03-23 1980-03-20 Moulding compositions and acoustic articles moulded therefrom Expired GB2046274B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP3326279A JPS6048801B2 (en) 1979-03-23 1979-03-23 arm pipe
JP3326179A JPS6048803B2 (en) 1979-03-23 1979-03-23 head shell
JP54033263A JPS6056360B2 (en) 1979-03-23 1979-03-23 Diaphragm for audio equipment
JP6395779A JPS55127445A (en) 1979-05-25 1979-05-25 Molding material

Publications (2)

Publication Number Publication Date
GB2046274A GB2046274A (en) 1980-11-12
GB2046274B true GB2046274B (en) 1983-03-30

Family

ID=27459761

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8009358A Expired GB2046274B (en) 1979-03-23 1980-03-20 Moulding compositions and acoustic articles moulded therefrom

Country Status (2)

Country Link
DE (1) DE3011056C2 (en)
GB (1) GB2046274B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404315A (en) 1979-05-05 1983-09-13 Pioneer Electronic Corporation Molding compositions and diaphragms, arm pipes and head shells molded therefrom
JPS5821997A (en) * 1981-07-31 1983-02-09 Pioneer Electronic Corp Speaker diaphragm
GB8320607D0 (en) * 1983-07-30 1983-09-01 T & N Materials Res Ltd Housing for electrical/electronic equipment
US4528213A (en) * 1983-11-22 1985-07-09 Rca Corporation EMI/RFI Shielding composition
CN114105667B (en) * 2020-08-28 2023-04-11 常州驰科光电科技有限公司 Ball top material and preparation method thereof

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997451A (en) * 1957-03-07 1961-08-22 Harry B Miller Conductive phonograph record containing thermoplastic resin and carbon black
JPS5222012A (en) * 1975-08-12 1977-02-19 Matsushita Electric Ind Co Ltd Manufacture of nonnburnt carbon rods

Also Published As

Publication number Publication date
DE3011056A1 (en) 1980-10-02
GB2046274A (en) 1980-11-12
DE3011056C2 (en) 1985-05-02

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee