N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide...

Details N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide... N,n'-dimethylperylene-3,4,9,10-tetracarboxylic acid diimide...

C - Chemistry, Metallurgy

09

B

C09B 5/62 (2006.01) C09B 67/08 (2006.01) C09D 7/00 (2006.01) C09D 7/12 (2006.01)

Patent

CA 2234111

A 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-C18-alkyl- or -alkenylamine, isolating and drying the coated diimide and then subjecting it to dry milling.

L'invention concerne un pigment de diimide d'acide N,N'-diméthylpérylène-3,4,9,10-tétracarboxylique, que l'on peut obtenir en recouvrant l'imide en suspension dans le milieu aqueux avec une résine à groupes carboxyle en présence d'un d'acide 9-sulfonique d'imide d'acide pérylène-3,4-dicarboxylique ou un de ses sels et une C8-C18 alkylamine - ou alcénylamine, en isolant et en laissant sécher le diimide ainsi revêtu puis en le broyant à sec.

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