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

Moulding compositions and acoustic articles moulded therefrom

Info

Publication number: GB2046274B
Authority: GB; United Kingdom
Prior art keywords: moulding compositions; articles moulded; moulded therefrom; acoustic articles; acoustic
Prior art date: 1979-03-23
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.)

1979-03-23

Filing date

1980-03-20

Publication date

1983-03-30

1979-03-23 Priority claimed from JP54033263A external-priority patent/JPS6056360B2/en

1979-03-23 Priority claimed from JP3326179A external-priority patent/JPS6048803B2/en

1979-03-23 Priority claimed from JP3326279A external-priority patent/JPS6048801B2/en

1979-05-25 Priority claimed from JP6395779A external-priority patent/JPS55127445A/en

1980-03-20 Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp

1980-11-12 Publication of GB2046274A publication Critical patent/GB2046274A/en

1983-03-30 Application granted granted Critical

1983-03-30 Publication of GB2046274B publication Critical patent/GB2046274B/en

Status Expired legal-status Critical Current

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)
Acoustics & Sound (AREA)
Multimedia (AREA)
Physics & Mathematics (AREA)
Signal Processing (AREA)
Health & Medical Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Chemistry (AREA)
Diaphragms For Electromechanical Transducers (AREA)
Compositions Of Macromolecular Compounds (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
JP54033263A JPS6056360B2 (en)	1979-03-23	1979-03-23	Diaphragm for audio equipment
JP3326179A JPS6048803B2 (en)	1979-03-23	1979-03-23	head shell
JP3326279A JPS6048801B2 (en)	1979-03-23	1979-03-23	arm pipe
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 Industrial Co Ltd	Manufacture of nonnburnt carbon rods

1980
- 1980-03-20 GB GB8009358A patent/GB2046274B/en not_active Expired
- 1980-03-21 DE DE19803011056 patent/DE3011056C2/en not_active Expired

Also Published As

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

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Legal Events

Date	Code	Title	Description
1987-11-11	PCNP	Patent ceased through non-payment of renewal fee