发明名称 |
Method of preparing structured kaolin pigments. |
摘要 |
The invention relates to a structured kaolinitic pigment having improved physical and optical characteristics when incorporated as a filler or coating pigment in paper. The pigment consists of porous aggregates of kaolin particles which are chemically bonded together. The pigment may be produced by chemically reacting a particulate kaolin with a metal chloride, such as silicon tetrachloride, and with urea or an organic amine. The process is conducted under conditions such that the kaolinite structure is not altered.
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申请公布号 |
EP0274430(A2) |
申请公布日期 |
1988.07.13 |
申请号 |
EP19880300081 |
申请日期 |
1988.01.07 |
申请人 |
ECC AMERICA INC |
发明人 |
RAYHATHA, RASIK H.;ANDREWS, E. WAYNE |
分类号 |
C09C1/42;D21H17/69;D21H19/40;(IPC1-7):C09C1/42 |
主分类号 |
C09C1/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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