发明名称 |
Process for the manufacture of a pigment composition in bead form |
摘要 |
A process for the production of a pigment composition in bead form which comprises contacting with agitation, in the presence of an aqueous protective colloid, 1 part of a water insoluble carrier melting below 100 DEG C. and an aqueous dispersion containing 0.25-2,3 parts of a pigment or water insoluble dyestuff at a temperature above the melting point of the carrier and allowing the aqueous phase to become substantially free of pigment or water insoluble dyestuff by its association with the carrier and recovering the resulting pigmented beads which are easily dispersible in polymeric compounds to yield even colorations.
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申请公布号 |
US4175979(A) |
申请公布日期 |
1979.11.27 |
申请号 |
US19770838592 |
申请日期 |
1977.10.03 |
申请人 |
CIBA-GEIGY CORP |
发明人 |
ROBERTSON, GEORGE H;STIRLING, JOHN A |
分类号 |
C09B67/00;C09C3/00;(IPC1-7):C09C3/00 |
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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