Title:
SILICONE RESIN
Document Type and Number:
WIPO Patent Application WO/2019/029145
Kind Code:
A1
Abstract:
Provided in the present invention is a silicone resin, comprising the following components in parts by weight: 30-50 parts of MQ silicone resin, 30-60 parts of precipitated white carbon black, 2-6 parts of mercaptopropylmethdimethoxysilane and 5-10 parts of HMPA. Compared to existing technology, the present invention has the following beneficial effects: the silicone resin disclosed in the present invention has a high decomposition temperature and may improve the heat resistance of insulating powder, so that a metal soft magnetic powder core may be subjected to heat treatment at 900°C, and the loss of the metal soft magnetic powder core under high-frequency application is greatly reduced. After high-temperature heat treatment, the film formed on the surface of the metal powder has good compactness, is uniform and produces good insulation effects. In addition, the silicone resin according to the present invention has a bonding effect, may effectively improve the mechanical strength of the metal soft magnetic powder core and reduce yields brought about by product defects in a production process.
Inventors:
GUO XIONGZHI (CN)
ZHANG YUNFAN (CN)
XIAO QIANG (CN)
XU FANGSHENG (CN)
ZHOU JIN (CN)
LIU HUAN (CN)
HE KAI (CN)
ZHANG YUNFAN (CN)
XIAO QIANG (CN)
XU FANGSHENG (CN)
ZHOU JIN (CN)
LIU HUAN (CN)
HE KAI (CN)
Application Number:
PCT/CN2018/076090
Publication Date:
February 14, 2019
Filing Date:
February 09, 2018
Export Citation:
Assignee:
POCO HOLDING CO LTD (CN)
International Classes:
C08L83/04; C08K3/36; C08K5/5399; H01F1/26
Foreign References:
| CN107446352A | 2017-12-08 | |||
| CN104867640A | 2015-08-26 | |||
| CN102977607A | 2013-03-20 | |||
| JPS512755A | 1976-01-10 | |||
| JP2005089568A | 2005-04-07 | |||
| CN104070161A | 2014-10-01 | |||
| CN102093719A | 2011-06-15 | |||
| TW593476B | 2004-06-21 |
Attorney, Agent or Firm:
SHENZHEN MINGRIJINDIAN INTELLECTUAL PROPERTY AGENCY FIRM (GENERAL) (CN)
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