Stabilized aqueous colorant preparations

Details Stabilized aqueous colorant preparations Stabilized aqueous colorant preparations

C - Chemistry, Metallurgy

09

D

C09D 11/00 (2006.01) A01N 31/08 (2006.01)

Patent

CA 2528859

The invention relates to the use of an antimicrobially effective amount of a mixture from 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-4-isothiazolin-3- one and 2-bromo-2-nitropropane-1,3-diol as a biocide in aqueous colorant preparations that have a heavy metal ion concentration of greater or equal 20 ppm. The invention effectively prevents the formation of precipitations.

L'invention concerne l'utilisation d'une quantité, ayant un effet antimicrobien, d'un mélange constitué de 5-chloro-2-méthyl-4-isothiazolin-3-one, 2-méthyl-4-isothiazolin-3-one et 2-bromo-2-nitropropane-1,3-diol, comme biocide dans des préparations aqueuses de colorants qui présentent une concentration en ions de métaux lourds supérieure ou égale à 20 ppm. Il est ainsi possible d'éviter la formation de précipités de manière efficace.

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