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US 6,648,956 B1Granted
Pigment preparation
AssigneeMerck Patent Gesellschaft mit beschraenkter Haftung
InventorsWolfgang Hechler, Gerhard Herget, Brigitte Husseini, Sabine Schoen
Life of this patent
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Abstract
The invention relates to a nondusting, solvent-containing homogeneous pigment preparation that includes ≧70% by weight of one or more effect pigments 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 to 100 and a surface tension (ST) of ≦35 mN/m and optionally 0-5% by weight of a surface-active substance.
Claims29
A nondusting homogeneous pigment preparation, comprising
- ≧70% by weight of at least one effect pigment
- 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 to 100 and a surface tension (ST) of ≦35 mN/m, which is 4-methyl-2-pentanol, 2-butanol, 2,6-dimethyl-4-heptanone, 1-methoxy-2-propyl acetate, xylene or a mixture of xylene, cumene, ethylbenzene, naphthalene, toluene and benzene
- and optionally
- 0-5% by weight of a surface-active agent.
1 more element
A nondusting homogeneous pigment preparation, comprising
- ≧70% by weight of at least one effect pigment
- 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 to 100 and a surface tension (ST) of ≦35 mN/m,
- and optionally
- 0-5% by weight of a surface-active agent, which is a fluorosurfactant, a silicone surfactant, a silane, a sheet-silicate or a fatty acid.
1 more element
A nondusting homogeneous pigment preparation, comprising
- ≧70% by weight of at least one effect pigment,
- 0.1-30% by weight of an organic solvent or solvent mixture having an evaporation number (EN) of 10 to 100 and a surface tension (ST) of ≦35 mN/m,
- a redispersant,
- and optionally
- 0-5% by weight of a surface-active agent.
2 more elements
Dependencies are inferred from the claim text.