| 摘要 |
PCT No. PCT/EP97/00064 Sec. 371 Date Jul. 16, 1998 Sec. 102(e) Date Jul. 16, 1998 PCT Filed Jan. 9, 1997 PCT Pub. No. WO97/26301 PCT Pub. Date Jul. 24, 1997A N,N'-dimethylperylene-3,4,9,10-tetracarboxylic diimide pigment suitable for aqueous basecoats is obtainable by coating the diimide, suspended in an aqueous medium, with a carboxyl-carrying resin in the presence of 3,4-dicarboximidoperylene-9-sulfonic acid or salts thereof and with a C8-C8-alkyl- or-alkenylamine, isolating and drying the coated dimide and then subjecting it to dry milling.
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