Modified pigments and use thereof
AssigneeEvonik Operations GmbH
InventorsPedro Cavaleiro, Matthias Bouwman, Pascal Senter, Philippe Favresse
Life of this patent
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Abstract
A modified organic pigment can be used to make a coating composition, such as a paint, a varnish, or a printing ink. The modified organic pigment is obtained by reacting the pigments during the pigment synthesis with one interface-active compound, where the interface-active compound is a compound within a three-dimensional Hansen space determined by three coordinates, Hansen solubility parameters (HSPs), D=18.21, P=8.44, H=13.16 with a radius of 6.7 units about a center of the three-dimensional Hansen space, determined with the aid of the HSPiP software, version 5.0.0.4.
Claims15
A process for producing a modified organic pigment, the process comprising:
- 1) providing a crude pigment;
- 2) Working up the crude pigment by washing and filtration;
- 3) Drying the crude pigment;
- and
- 4) Adding an interface-active compound before said 3) drying,
- wherein said modified organic pigment is naphthol AS and said interface-active compound is a compound within a three-dimensional Hansen space determined by three coordinates, Hansen solubility parameters (HSPs), D=18.21, P=8.44, H=13.16 with a radius of 6.7 units about a center of the three-dimensional Hansen space,
- determined with the aid of the HSPIP software, version 5.0.0.4.
A process of making a composition comprising a modified organic pigment obtained by reacting an organic pigment during organic pigment synthesis with at least one interface-active compound,
- wherein the interface-active compound is a compound within a three-dimensional Hansen space determined by three coordinates, Hansen solubility parameters (HSPs), D=18.21, P=8.44, H=13.16 with a radius of 6.7 units about a center of the three-dimensional Hansen space,
- determined with the aid of the HSPIP software, version 5.0.0.4, the process comprising:
- mixing the modified organic pigment in a member selected from the group consisting of a paint precursor composition, a varnish precursor composition, a printing ink precursor composition, a coating material precursor composition, a floor coating precursor composition, a potting compound precursor composition, and a filling compound precursor composition,
- wherein said modified organic pigment is naphthol AS.
Dependencies are inferred from the claim text.