发明授权
US07638017B2 Filler or pigment or processed mineral for paper, in particular a pigment containing natural CaCO3, its manufacturing process, preparations containing it and their applications
有权
用于纸的填料或颜料或加工矿物，特别是含有天然CaCO 3的颜料，其制备方法，含有它的制剂及其应用
- 专利标题： Filler or pigment or processed mineral for paper, in particular a pigment containing natural CaCO3, its manufacturing process, preparations containing it and their applications
- 专利标题（中）： 用于纸的填料或颜料或加工矿物，特别是含有天然CaCO 3的颜料，其制备方法，含有它的制剂及其应用
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申请号： US10629547申请日： 2003-07-30
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公开(公告)号： US07638017B2公开(公告)日： 2009-12-29
- 发明人: Patrick A. C. Gane , Matthias Buri , Rene Vinzenz Blum , Beat Karth
- 申请人： Patrick A. C. Gane , Matthias Buri , Rene Vinzenz Blum , Beat Karth
- 申请人地址： CH Oftringen
- 专利权人： Omya Development AG
- 当前专利权人： Omya Development AG
- 当前专利权人地址： CH Oftringen
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： FR9816596 19981224
- 主分类号： D21H21/22
- IPC分类号： D21H21/22 ; D21H17/64 ; D21H17/69
摘要：
The invention concerns a pigment, filler or mineral containing a natural calcium carbonate, treated with one of more providers of H3O+ ions and gaseous CO2, allowing a reduction in the weight of paper for a constant surface area without loss of physical properties when it is used as a pigment or coating filler for the said paper. In particular, the invention concerns a pigment, filler or mineral containing a natural calcium carbonate or dolomite or mixtures of talc and calcium carbonate, of kaolin and carbonate or carbonate alone or in combination with natural and/or synthetic fibres or similar, treated with one or more medium-strong or strong providers of H3O+ ions in the presence of gaseous CO2.Applications are particularly in the paper industry, obtaining in particular good sheet properties i.e. a reduction its weight for a given surface area.
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