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US 6,547,870 B1Granted
Pigment preparation
AssigneeMerck Patent GmbH
InventorsCarsten Griessmann, Gerhard Herget
Life of this patent
Estimating the term…
Abstract
The invention relates to a non-dusting, homogeneous pigment preparation, comprising ≧40% by weight of one or more effect pigments, 0.5-60% by weight of a polyalkylene glycol and/or one or more polyalkylene glycol derivatives, 0-10% by weight of a redispersing auxiliary, 0-40% by weight of water or an organic solvent or solvent mixture, 0-40% by weight of at least one further hydroxyl-rich resin, and to its use as a precursor for printing inks.
Claims17
A non-dusting, homogeneous pigment composition, comprising:
- ≧40% by weight of one or more effect pigments comprising at least one metal flake pigment, platelet-shaped iron oxide pigment, BiOCl pigment, holographic pigment or other pigment having a transparent or semi-transparent platelet-shaped substrate coated with one or more layers of one or more metal oxides,
- 0.5-60% by weight of a polyalkylene glycol and/or one or more polyalkylene glycol derivatives,
- 0-10% by weight of a redispersing auxiliary,
- 0-40% by weight of water, one or more organic solvents or mixtures thereof, and
- 0-40% by weight of at least one hydroxyl group-containing resin selected from the group consisting of cellulose products, polyvinyl alcohols, polysaccharides and polyvinyl acetates.
2 more elements
Dependencies are inferred from the claim text.