发明授权
- 专利标题: Particulate calcium carbonate
- 专利标题(中): 颗粒状碳酸钙
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申请号: US583075申请日: 1984-02-23
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公开(公告)号: US4559214A公开(公告)日: 1985-12-17
- 发明人: Donald K. Howard , Michael A. Finan , Michael J. Lees
- 申请人: Donald K. Howard , Michael A. Finan , Michael J. Lees
- 申请人地址: NY Ardsley
- 专利权人: Ciba Geigy Corporation
- 当前专利权人: Ciba Geigy Corporation
- 当前专利权人地址: NY Ardsley
- 优先权: GBX8305346 19830225
- 主分类号: C08K9/00
- IPC分类号: C08K9/00 ; C01F11/18 ; C08K9/04 ; C08K9/08 ; C08L33/00 ; C08L33/02 ; C09C1/02 ; C09C3/10 ; C01F5/24
摘要:
The invention provides particulate calcium carbonate having incorporated therein from 0.1 to 10% by weight, based on the weight of calcium carbonate, of polymaleic acid or a water-soluble salt thereof.