Title:
VIBRATING DIAPHRAGM FOR SOUND GENERATING DEVICE, METHOD FOR PREPARING VIBRATING DIAPHRAGM, AND SOUND GENERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/119941
Kind Code:
A1
Abstract:
Disclosed are a vibrating diaphragm for a sound generating device, a method for preparing the vibrating diaphragm, and a sound generating device. The vibrating diaphragm comprises at least one modified thermoplastic polyester elastomer layer, wherein a modifier is involved which is at least one of a temperature-resistant resin, an inorganic filler and an anti-aging agent, and the modifier is added to a thermoplastic polyester elastomer material. In an embodiment of the present invention, by adding the modifier to the thermoplastic polyester elastomer material and sufficiently mixing the modifier when making a film layer, the aim of improving the temperature resistance of a moulded vibrating diaphragm is achieved.
Inventors:
ZHOU HOUQIANG (CN)
WANG TING (CN)
WU ZENGXUN (CN)
WANG TING (CN)
WU ZENGXUN (CN)
Application Number:
PCT/CN2018/110160
Publication Date:
June 27, 2019
Filing Date:
October 13, 2018
Export Citation:
Assignee:
GOERTEK INC (CN)
International Classes:
C08L67/00; B32B7/12; B32B27/36; C08J5/18; C08L67/02; H04R31/00; B29L7/00
Foreign References:
| CN108276740A | 2018-07-13 | |||
| CN205987355U | 2017-02-22 | |||
| CN103396658A | 2013-11-20 | |||
| EP1429582B1 | 2013-01-16 | |||
| US4487877A | 1984-12-11 |
Other References:
WANG, WENGUANG ET AL.: "Plastic Heat-resistant Filling Formula Design", PLASTIC FORMULA DESIGN, 31 July 2004 (2004-07-31), pages 276 - 280
"Application of Antioxidants in Thermoplastic Polyester Elastomers", PLASTIC RUBBER PROCESSING ADDITIVES, 31 October 2002 (2002-10-31), pages 188
"Application of Antioxidants in Thermoplastic Polyester Elastomers", PLASTIC RUBBER PROCESSING ADDITIVES, 31 October 2002 (2002-10-31), pages 188
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