发明公开
EP0731826A4 TREATMENT OF INORGANIC PIGMENTS WITH CARBOXYMETHYLCELLULOSE COMPOUNDS
失效
BEHANDLUNG VON ANORGANISCHEN PIGMENTEN MIT CARBOXYMETHYLCELLULOSEVERBINDUNGEN
- 专利标题： TREATMENT OF INORGANIC PIGMENTS WITH CARBOXYMETHYLCELLULOSE COMPOUNDS
- 专利标题（中）： BEHANDLUNG VON ANORGANISCHEN PIGMENTEN MIT CARBOXYMETHYLCELLULOSEVERBINDUNGEN
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申请号： EP95901101申请日： 1994-11-01
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公开(公告)号： EP0731826A4公开(公告)日： 1998-05-06
- 发明人: FAIRCHILD GEORGE H
- 申请人： MINERALS TECH INC
- 专利权人： MINERALS TECH INC
- 当前专利权人： MINERALS TECH INC
- 优先权： US15050793 1993-11-10
- 主分类号： C08K3/26
- IPC分类号： C08K3/26 ; C08L1/00 ; C08L1/02 ; C09C1/02 ; C09C3/10 ; D21H11/00 ; D21H17/26 ; D21H17/67 ; D21H17/69 ; C09D101/08 ; C09D101/28
摘要：
The disclosed invention relates to a composition comprising finely divided particles of an inorganic material treated with a cellulose derivative modified by or containing at least one ionic substituent. The disclosed invention further relates to a method of providing paper of improved brightness. The disclosed invention also relates to a method of providing finely divided particles of inorganic material, treating the particles with a cellulose derivative modified by or containing at least one ionic substituent, and adding the treated particles to cellulose fiber during an alkaline process for making paper. Also, an alkaline paper comprising the finely divided particles of inorganic material treated with the cellulose derivative is disclosed.
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