发明名称 |
PROCESS FOR THE PREPARATION OF AN ORGANIC PIGMENT DISPERSION |
摘要 |
<p>An organic pigment dispersion in a non-aqueous medium is prepared directly from an aqueous slurry containing 0.1-20% by weight of the pigment by mixing the aqueous slurry with the non-aqueous medium under vigorous agitation and subsequently isolating the organic pigment dispersion from the residual aqueous phase. A substantial part of water in the resulting pigment disperion can be removed by passing the organic pigment dispersion in the non-aqueous medium over a series of surfaces, the surface material thereof having different affinity for water than the non-aqueous medium, respectively, and then removing water and pigment dispersion in the non-aqueous medium, respectively, from respective surfaces.</p> |
申请公布号 |
CA1269016(A) |
申请公布日期 |
1990.05.15 |
申请号 |
CA19860520300 |
申请日期 |
1986.10.10 |
申请人 |
KEMISK VAERK K/GE A/S |
发明人 |
VINTHER, ARNE;OLSEN, STEFFEN C.;LARSEN, BJ/RN E.H.;MADSEN, ELUN S.;MADSEN, BJ/RN |
分类号 |
C09B67/00;C09D17/00;C09D201/00;(IPC1-7):C09D17/00;C09D5/02 |
主分类号 |
C09B67/00 |
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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