- 专利标题: BLACK PARTICLES AND PROCESS FOR PRODUCING BLACK PARTICLES
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申请号: EP17753341.1申请日: 2017-02-17
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公开(公告)号: EP3418334A1公开(公告)日: 2018-12-26
- 发明人: SUN, Ren-de , NOZATO, Shoji , NAKASUGA, Akira , IHARA, Hirotaka , TAKAFUJI, Makoto , KUWAHARA, Yutaka , MURAKAMI, Akiko
- 申请人: Sekisui Chemical Co., Ltd. , National University Corporation Kumamoto University
- 申请人地址: 4-4, Nishitemma 2-chome Kita-ku Osaka-shi, Osaka 530-0047 JP
- 专利权人: Sekisui Chemical Co., Ltd.,National University Corporation Kumamoto University
- 当前专利权人: Sekisui Chemical Co., Ltd.,National University Corporation Kumamoto University
- 当前专利权人地址: 4-4, Nishitemma 2-chome Kita-ku Osaka-shi, Osaka 530-0047 JP
- 代理机构: Cabinet Beau de Loménie
- 优先权: JP2016029267 20160218
- 国际公布: WO2017142087 20170824
- 主分类号: C09C1/44
- IPC分类号: C09C1/44 ; C01B32/05
摘要:
The present invention provides black particles having high electrical insulation properties, high blackness in a visible light region, and excellent dispersibility, and a method for producing the black particles. The present invention relates to black particles containing amorphous carbon, the amorphous carbon being derived from carbon contained in an oxazine resin, the black particles having a specific gravity of 1.8 g/cm 3 or less, a zeta potential of -70 to +80 mV, an average total light reflectance measured at a wavelength of 400 to 800 nm of 5% or less, and a peak intensity ratio between G band and D band as determined from a Raman spectrum of 1.2 or more.
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