Abstract: The invention is about the preparation of novel highly transparent zeolite-doped polymer and zeolites monolayers. External coating of the zeolite crystals by covalently linked functionalized alkoxysilane derivatives allows for an efficient dispersion of the nano zeolite particles into an organic liquid monomer; the following co-polymerisation process leads to a hard, insoluble and transparent material containing said zeolites. Optical properties such as colour, refractive index, Abbe number or photochromism can be fine tuned by simply changing zeolite loading, while transparency is maintained.

Abstract: The invention is directed to novel colorants of formula (I), wherein A represents a group of general formulas (II), (III), (IV) or (V), and B represents a substituted or unsubstituted ortho-C6-C18 arylene, wherein C and D represent an alicyclic or heteroyclic group.

Abstract: The invention relates to a method for production of an aqueous dispersion of polymer-encapsulated pigments characterized in that (a) an aqueous pigment dispersion, containing at least one organic pigment (P) at least one surfactant (T), and water is prepared, (b) a monomer miniemulsion stabilized by a hydrophobic organic compound with a water solubility at 20° C. of not more than 5×10?5 g/l, is prepared from a polymerizable monomer (M) and at least one surfactant (T), in water, (c) a monomer pigment emulsion is prepared, whereby the aqueous pigment dispersion from (a) and the monomer miniemulsion from (b) are mixed and homogenized, and (d) the pigment-containing monomer miniemulsion from (c) is polymerized in the presence of a polymerization initiator and/or by heat, whereupon an encapsulation of the pigment with the polymer thus formed occurs.

Abstract: The invention concerns a process for encapsulating pigment particles, which comprises (A) producing a dispersion of the pigment to be encapsulated, (B) then applying a polyelectrolyte layer to the surface of the pigment particles, (C) further applying a polyelectrolyte layer having opposite charge to (B), and/or adding low molecular weight, multivalent ions oppositely charged to (B), and (D) if appropriate repeating steps (B) and (C), said steps (B), (C) and if appropriate (D) being carried out in the presence of a nonionic surfactant.

Abstract: A method for the finishing treatment of organic pigments includes allowing an, optionally milled, organic raw pigment and one or more ionic liquids to interact.

Abstract: The invention relates to aqueous pigment preparations containing: (A) at least one organic and/or inorganic pigment, (B) at least one polyethylene glycol alkyl ether functionalised by a terminal acid group, (C) at least one alkoxylated styrol-phenol condensate, (D) at least one polyethylene glycol ether having an average molar mass of between 200 and 1000 g/mol, (E) at least one alkine diol, (F) fats and oils of plant and/or animal origin and/or saturated and unsaturated higher fatty acids of such fats and oils and/or salts of such saturated and unsaturated higher fatty acids, (G) optionally an aqueous acrylate resin solution, (H) optionally a polymer condensation product of aromatic sulfonic acids and formaldehyde and/or salts of aromatic sulfonic acids and formaldehyde, (I) optionally one sulfonsuccinic acid half-ester of a castor oil alkoxylate, (J) optionally a hydrotropic substance, (K) optionally other standard additives for aqueous pigment preparations, and (L) water.

Abstract: The invention relates to a method for the pigmentation of a non-aqueous, organic coating material containing a solvent. The invention is characterised in that a coated, finely dispersed organic pigment with (meth)acrylate copolymers containing amino groups is incorporated into an organic coating material containing a solvent, said pigment having a discharge of energy which is reduced by at least 20% compared to the corresponding non-coated pigment.

Abstract: The invention relates to a method for distortion-free pigmentation of partly-crystalline plastics, chraracterised in that a phthalocyanine pigment is used which has been heated to a temperature of at least 80° C. as a suspension in an acid-free organic medium in the presence of a base.

Abstract: The present invention relates to a pigment formulation which comprises at least one organic pigment selected from C.I. Pigment Red 279 or C.I. Pigment Orange 80 (both thiazine indigo pigments) and at least one pigment-dispersing agent. The invention further relates to a process for preparing said formulation as well as to a method of pigmenting high molecular weight organic material of natural or synthetic origin with said formulation.

Abstract: The invention relates to a compound of general formula (I) in which C represents an alicyclic or heterocyclic group having C2v symmetry, and B represents ortho-C6-C18-arylene. The invention also relates to a method for producing this compound and to the use thereof as a coloring agent for coloring or pigmenting organic or inorganic high-molecular or low-molecular, particularly high-molecular, organic materials.

Abstract: Diketopyrrolopyrroles of the formula (I): wherein R1, R2, R3 and R4 independently of one another are a C1-C4 alkyl radical or a substituted or unsubstituted phenyl radical, wherein the phenyl radical can be substituted by 1, 2, 3 or 4 substituents from the group C1-C4 alkyl, C1-C4 alkoxy, CN, F, Cl, Br, NO2, CF3, alkyl, phenyl or (C1-C2)alkylenephenyl, with the proviso that at least one of the radicals, R1, R2, R3, or R4, is one of the stated substituted or unsubstituted phenyl radicals.

Abstract: The invention relates to granulated optical brightening agents that are coated with a wax.