- 专利标题: Calcium carbonate and production method therefor
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申请号: US16489112申请日: 2018-02-23
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公开(公告)号: US11167998B2公开(公告)日: 2021-11-09
- 发明人: Maya Yoshida , Kenichiro Eguchi
- 申请人: SHIRAISHI KOGYO KAISHA, LTD.
- 申请人地址: JP Osaka
- 专利权人: SHIRAISHI KOGYO KAISHA, LTD.
- 当前专利权人: SHIRAISHI KOGYO KAISHA, LTD.
- 当前专利权人地址: JP Osaka
- 代理机构: Westerman, Hattori, Daniels and Adrian, LLP
- 优先权: JP2017-036651 20170228
- 国际申请: PCT/JP2018/006673 WO 20180223
- 国际公布: WO2018/159484 WO 20180907
- 主分类号: C01F11/18
- IPC分类号: C01F11/18 ; C08K3/26 ; B01J35/02 ; B01J35/06 ; B01J35/10
摘要:
Provided are a calcium carbonate having a small particle diameter and easily dispersible in polymers and a production method therefor. A calcium carbonate has a magnesium content of 12000 to 120000 ppm, a BET specific surface area of 60 to 120 m2/g, and a crystallite size of (104) plane of 20 to 50 nm, and particles of the calcium carbonate are concatenated.
公开/授权文献
- US20200062608A1 CALCIUM CARBONATE AND PRODUCTION METHOD THEREFOR 公开/授权日:2020-02-27
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