发明公开
EP0848736A4 ACID RESISTANT CALCIUM CARBONATE COMPOSITION CONTAINING AN ALUMINUM SALT AND USES THEREFOR
失效
EIN ALUMINIUMSALZ ENTHALTENDES，SÄUREBESTÄNDIGESKALZIUMKARBONAT SOWIE DESSEN VERWENDUNG
- 专利标题： ACID RESISTANT CALCIUM CARBONATE COMPOSITION CONTAINING AN ALUMINUM SALT AND USES THEREFOR
- 专利标题（中）： EIN ALUMINIUMSALZ ENTHALTENDES，SÄUREBESTÄNDIGESKALZIUMKARBONAT SOWIE DESSEN VERWENDUNG
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申请号： EP96929028申请日： 1996-08-23
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公开(公告)号： EP0848736A4公开(公告)日： 1999-06-16
- 发明人: WU KUAN-TING
- 申请人： ECC INT INC
- 专利权人： ECC INT INC
- 当前专利权人： ECC INT INC
- 优先权： US51876395 1995-08-24
- 主分类号： A61K45/00
- IPC分类号： A61K45/00 ; A61K9/68 ; A61K31/35 ; A61K31/44 ; A61K31/59 ; A61K31/66 ; A61K31/70 ; A61K31/7048 ; A61K33/42 ; A61K35/02 ; A61K36/00 ; A61K36/28 ; A61K45/06 ; A61P3/14 ; A61P25/30 ; C01F11/18 ; C09C1/02 ; D21H17/67 ; D21H17/69 ; D21H17/64 ; D21H17/65 ; D21H17/66
摘要：
An improved form of calcium carbonate which is acid resistant to enable its use as a filler material in the making of neutral to weakly acid paper, and a process for producing this acid resistant calcium carbonate are provided. This acid resistant calcium carbonate comprises a mixture of at least about 0.5 to about 10 percent of an aluminum salt, based on the dry weight of calcium carbonate, and calcium carbonate. Preferred aluminum salts are aluminum sulfate, aluminum chloride, and polyaluminum chloride.
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