To provide a coating film having higher luminance. A coating composition including a coating-film-forming resin and a pigment, wherein: the pigment includes a scaly vapor-deposited metal pigment; and a cured coating film of the coating composition has a sparkle intensity (Si) at an angle of incidence of 45° of 20 or higher, a sparkle area (Sa value) of 10 or higher, and a granularity value (G value) that exceeds 10.

The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C.sup.13 NMR MAS relaxation measurements, the relaxation of the .sup.13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T.sub.1.sup.s and a long average relaxation time T.sub.1.sup.l, and T.sub.1.sup.l being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of T.sub.max=100 to 150° C. and an enthalpy ΔH associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.

A resin coated inorganic or metallic pigment includes inorganic or metallic particles (A) and an acrylic copolymer (B) formed on the inorganic or metallic particles (A) by subjecting a radically polymerizable unsaturated carboxylic acid or radically polymerizable phosphate monomer (B1) and a monomer (B2) containing 3 to 6 (meth)acryloyloxy groups per molecule to radical polymerization reaction using a polymerization initiator (C) containing a nitrile group, wherein the inorganic or metallic particles (A) are coated with a coating resin including the acrylic copolymer (B), and the acrylic copolymer (B) has at a tail thereof a structure which is derived from the polymerization initiator (C) and which is represented by the following general formula (1): ##STR00001##
wherein R.sup.1 represents a methyl group, and R.sup.2 represents an alkyl group having 2 to 5 carbon atoms, or the like.

An aqueous coloring composition contains a metal pigment and water. The metal pigment is metal particles having a surface treated with at least one surface treatment agent, and the surface treatment agent is at least one compound represented by general formula (1) or (2). The volume-average particle diameter D50 of the metal pigment is 9 μm or less.

(A.sup.1-R.sup.1—)P(O)(OH).sub.2  (1)

(A.sup.2-R.sup.2—O—).sub.aP(O)(OH).sub.3-a  (2)

(In the formulae, A.sup.1 and A.sup.2 each independently represent a hydrogen atom or a group selected from a carboxyl group, a hydroxyl group, an amino group, and an oxyalkylene-containing group, R.sup.1 and R.sup.2 each independently represent a hydrocarbon group having 12 or more carbon atoms, and a represents an integer of 1 or 2.)

Described herein is a process for producing an effect pigment paste including at least steps (1) and (2), namely producing a mixture including at least one effect pigment (a) and at least one polymer (b) in a liquid medium (c) (step (1)), and dispersing the mixture obtained after step (1) to obtain the effect pigment paste (step (2)), where step (2) is performed using a shaker and the effect pigment paste obtained after the performance of step (2) has ended is free of grinding media. Also described herein are an effect pigment paste producible by this process, containing an amount of effect pigment of at least 5% by weight, based on the total weight of the effect pigment paste, and a method of using a shaker for dispersing of effect pigments for production of an effect pigment paste.

The present invention relates to a glitter comprising a foil coated with metal pigments, more particularly aluminium pigments, to a method for producing it, to the use thereof in cosmetic products, coating materials such as paints, varnishes and printing inks, for example, and in adhesives and modelling and/or moulding compositions, and also to cosmetic products, coating materials and adhesives, and modelling and/or moulding compositions which comprise the glitter.

The invention relates to a surface-modified effect pigment comprising particular additives and to the production thereof. The present invention further provides a nail varnish composition comprising a) at least one effect pigment that has been surface-modified with a starting material (additive), where the effect pigment comprises a substrate in platelet form and optionally at least one coating applied to the substrate, b) at least one hydrocarbon resin as binder, and c) at least one solvent or solvent mixture, where the starting material (additive) for surface modification of the effect pigment is at least one compound taken from the group consisting of phosphoric ester-containing, phosphonic ester-containing, phosphonic acid-containing, fatty acid-containing and/or silane-containing compounds or mixtures thereof.

The invention relates to a surface-modified effect pigment comprising particular additives and to the production thereof. The present invention further provides a nail varnish composition comprising a) at least one effect pigment that has been surface-modified with a starting material (additive), where the effect pigment comprises a substrate in platelet form and optionally at least one coating applied to the substrate, b) at least one hydrocarbon resin as binder, and c) at least one solvent or solvent mixture, where the starting material (additive) for surface modification of the effect pigment is at least one compound taken from the group consisting of phosphoric ester-containing, phosphonic ester-containing, phosphonic acid-containing, fatty acid-containing and/or silane-containing compounds or mixtures thereof.

This invention is directed to an effect pigment dispersion comprising a PVD-aluminum pigment, a leafing additive and an oil suitable for cosmetic skin care or color cosmetic applications, wherein a) the amount of the PVD-aluminum pigment is in a range of 8 to 30 wt.-%, b) the amount of the oil is in a range of 70 to 90 wt.-%, each based on the total weight of the effect pigment dispersion and c) the leafing additive is partly adsorbed on the surface of the PVD-aluminum pigment and partly an excess additive dissolved in the oil, wherein the amount of excess leafing additive is in a range of 0 to 25 wt.-%, based on the weight of PVD aluminum pigment. Further cosmetic skin care of color cosmetic formulations containing this effect pigment dispersion are described.

The invention relates to coated effect pigments, wherein the coating comprises a binder which is suitable for powder paints. They comprise a crystalline and an amorphous fraction which is determined by C.sup.13 NMR MAS relaxation measurements, the relaxation of the .sup.13C cores being fitted as a biexponential relaxation according to the formula (II) and the degree of crystallinity c being in a range between 40 to 85%, and relaxation having a short average relaxation time T.sub.1.sup.S and a long average relaxation time T.sub.1.sup.l, and T.sub.1.sup.l being in a range of from 65 to 130 s. The effect pigments coated according to the invention have at least one endothermic peak with a maximum from a range of T.sub.max=100 to 150° C. and an enthalpy ΔH associated with said peak from a range of 15 J/g to 80 J/g in DSC at a feed speed of 5° C./min, the enthalpy being calculated relative to the amount of the binder. The binders are applied to the effect pigment by way of spontaneous precipitation.