C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 11/00 (2006.01) C08K 5/17 (2006.01) C09B 62/465 (2006.01) C09B 67/26 (2006.01) C09B 67/54 (2006.01) C09D 11/02 (2006.01)
Patent
CA 2329980
The invention relates to liquid complexes of anionic organic dyes whith quaternary ammonium compounds which are homogeneous and thus substantially free of unwanted inorganic salts. Of particular interest as quaternay ammonium compounds are those which comprise alkoxylated moieties. Such complexes are formed through ionic bonds formed between the two compounds. The complexes are then removed of substantially all resultant unwanted salt formed from the cations of the dye and the counter ions of the quat so as to obtain a homogeneous liquid colorant which easily disperses within different media and which possess favorable migration and coloring characteristics. This invention also concerns methods of making the aforementioned salt-free anionic dye/quat complexes as well as methods of utilizing such complexes for dyeing thermoplastic and thermoset compositions and the incorporation of such complexes within aqueous and non-aqueous formulations and ink compositions.
L'invention concerne des complexes liquides de colorants organiques anioniques et de composés d'ammonium quaternaire, lesquels colorants sont homogènes et donc sensiblement dépourvus de sels minéraux non voulus. Des composés d'ammonium quaternaire revêtant un intérêt particulier sont ceux contenant des fractions alcoxylées. On obtient de tels complexes au moyen de liaisons ioniques se formant entre les deux composés. On enlève ensuite de ces complexes sensiblement tout sel résultant, non voulu et formé à partir des cations du colorant et des contre-ions de l'ammonium quaternaire, de manière à obtenir un colorant liquide homogène se dispersant facilement dans divers milieux et possédant des caractéristiques favorables de migration et de coloration. L'invention concerne également des procédés de préparation des complexes ci-dessus mentionnés de colorants anioniques/composés d'ammonium quaternaire, dépourvus de sels, de même que des procédés d'utilisation de tels complexes pour colorer des compositions thermoplastiques et thermodurcissables, ainsi que l'incorporation de tels complexes dans des formulations aqueuses et non aqueuses et dans des compositions d'encre.
Batlaw Raj
Moore Patrick D.
Suddeth Kaye Cannon
Zhao Xiaodong Edward
Gowling Lafleur Henderson Llp
Milliken & Company
Milliken Research Corporation
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