Process for the preparation and conditioning or organic pigments
AssigneeCiba-Geigy Corporation
InventorFridolin Babler
Life of this patent
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Abstract
A process for the preparation and conditioning of organic pigments, which comprises the use of at least one tricyclodecane alcohol or tricyclodecene alcohol.
Claims15
An improved process for the synthesis and concomitant conditioning of an organic pigment selected from the group consisting of the diketopyrrolopyrrole, perylene, quinacridone, phthalocyanine, perinone, quinophthalone, isoindolinone, isoindoline, dioxazine, anthraquinone, thioindigo, methine, azomethine and azo pigments and the metal salts or complexes of the azomethine, methine, azo and phthalocyanine pigments, wherein the improvement comprises
- carrying out the synthesis and concomitant conditioning of said pigment in the presence of a tricyclic alcohol which is 8(9)-hydroxytricyclo[5.2.1.0.sup.2,6 ]dec-3-ene or which has the formula ##STR3## wherein n is 0 or 1, and X is hydrogen or the --CH.sub.2 OH group;
- or a mixture of said tricyclic alcohols.
A process for the conditioning of an organic pigment selected from the group consisting of the diketopyrrolopyrrole, perylene, quinacridone, phthalocyanine, perinone, quinophthalone, isoindolinone, isoindoline, dioxazine, anthraquinone, thioindigo, methine, azomethine and azo pigments and the metal salts or complexes of the azomethine, methine, azo and phthalocyanine pigments which comprises
- conditioning the preformed crude pigment in the presence of a tricyclic alcohol which is 8(9)-hydroxytricyclo[5.2.1.0.sup.2,6 ]dec-3-ene or which has the formula ##STR4## wherein n is 0 to 1, and X is hydrogen or the --CH.sub.2 OH group;
- or a mixture of said tricyclic alcohols.
Dependencies are inferred from the claim text.