Title:
DIAPHRAGM FOR ELECTRO-ACOUSTIC TRANSDUCER
Document Type and Number:
WIPO Patent Application WO/2007/083751
Kind Code:
A1
Abstract:
Disclosed is a diaphragm for electro-acoustic transducers, especially a diaphragm for speakers, which is excellent in moldability and durability during high output operation. Also disclosed is a film for such a diaphragm. Specifically disclosed is a diaphragm for electro-acoustic transducers, which is obtained by molding a film containing a polybiphenyl ether sulfone resin (A) having a specific repeating unit, or alternatively containing the polybiphenyl ether sulfone resin (A) and a crystalline resin (B) such as a polyarylketone resin. Also specifically disclosed is a film used for such a diaphragm.
Inventors:
TANIGUCHI KOUICHIROU (JP)
Application Number:
PCT/JP2007/050806
Publication Date:
July 26, 2007
Filing Date:
January 19, 2007
Export Citation:
Assignee:
MITSUBISHI PLASTICS INC (JP)
TANIGUCHI KOUICHIROU (JP)
TANIGUCHI KOUICHIROU (JP)
International Classes:
H04R7/02
Foreign References:
| JPH0525262B2 | 1993-04-12 | |||
| JPH01149699A | 1989-06-12 | |||
| JPH01174100A | 1989-07-10 |
Attorney, Agent or Firm:
OHTANI, Tamotsu (Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, JP)
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