초록 ▼

An aqueous pigment dispersion containing as the dispersing agent a phosphate ester salt having the general formula: [Figure] [Figure] wherein: R and R′are the same or different linear or branched alkyl groups of 2 to 12 carbon atoms; k and l are the same or different integers having a value of 1 or

An aqueous pigment dispersion containing as the dispersing agent a phosphate ester salt having the general formula: [Figure] [Figure] wherein: R and R′are the same or different linear or branched alkyl groups of 2 to 12 carbon atoms; k and l are the same or different integers having a value of 1 or 2; x and y are the same or different integers having values of greater than 1 but less than 13; and, M is a cation selected from the group consisting of potassium, sodium and ammonium. The dispersing agent is especially useful to disperse azo type pigments. The resulting pigment dispersion exhibits improved stability.

대표청구항 ▼

An aqueous pigment dispersion comprising a pigment and a dispersing agent having the formula: [Figure] [Figure] wherein: R and R′are the same or different, linear or branched alkyl groups of 2 to 12 carbon atoms; k and l are the same or different integers having a value of 1 or 2; x and y are the s

An aqueous pigment dispersion comprising a pigment and a dispersing agent having the formula: [Figure] [Figure] wherein: R and R′are the same or different, linear or branched alkyl groups of 2 to 12 carbon atoms; k and l are the same or different integers having a value of 1 or 2; x and y are the same or different integers having values of greater than 1 but less than 13; and, M is a cation.