| 摘要 |
PCT No. PCT/EP91/00850 Sec. 371 Date Oct. 25, 1991 Sec. 102(e) Date Oct. 25, 1991 PCT Filed May 6, 1991 PCT Pub. No. WO91/17866 PCT Pub. Date Nov. 28, 1991.Pigment suspensions of inorganic pigments are prepare compacting and grinding the unground pigments on a roller compactor, followed by processing of the compacted pigment in a wet grinding mill with addition of water. The process as described improves the particle size distribution of the pigment.
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