| 摘要 |
PROBLEM TO BE SOLVED: To provide a loud speaker diaphragm which is excellent in moldability and durability at the time of high output, and film for the loud speaker diaphragm. SOLUTION: The loud speaker diaphragm is characterized by shaping of film containing polybiphenyl ether sulfone resin. The film contains polybiphenyl ether sulfone resin characterized by a mean thickness of 40μm or below. COPYRIGHT: (C)2007,JPO&INPIT
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