Abstract: Disclosed are transparent conductive pigments of flake-form substrates coated with a conductive layer, where the number-weighted mean particle area F50 of the transparent conductive pigments is greater than or equal to 150 ?m2, and processes for the production of the pigments, and the use thereof.

Abstract: Disclosed are transparent conductive pigments of flake-form substrates coated with a conductive layer, where the number-weighted mean particle area F50 of the transparent conductive pigments is greater than or equal to 150 ?m2, and processes for the production of the pigments, and the use thereof.

Abstract: A process for producing powder coating materials comprising lustre pigment comprises starting materials consisting of customary powder coating components and one or more lustre pigments. The starting materials are first introduced into the filling chamber of a first vessel which has a mixing element and is provided, if desired, with a thermostat. Subsequently, a supercritical fluid is admitted to the filling chamber, and finally the starting materials are mixed in the presence of the supercritical fluid. The mixture of the customary powder coating components, one or more lustre pigments and the supercritical fluid is transferred by a distributor into a second vessel. The distributor has a plurality of nozzles with an aperture diameter of from 0.025 cm to 2.5 cm. During transfer, the second vessel is maintained at an internal pressure of from 0 bar to 350 bar and at a temperature of from −85° C. to 200° C.

Abstract: Effect powder coating compositions which contain 0.1-10% by weight of conductive pigments, the process for their preparation and their use.

Abstract: The invention relates to a non-dusting, homogeneous pigment preparation containingat least 70% by weight of one or more flaky pigments,1-30% by weight of water,0.1-20% by weight of a humectant, andless than 1.00% by weight of one or more preservatives.

Abstract: There is disclosed an electrically conductive pigment containing 20 to 95% by weight of a component A comprising one or more conductive platelet-like pigments and 5 to 80% by weight of a component B comprising one or more conductive needle-shaped or fibrous pigments.

Abstract: The invention relates to pigment preparations, in which a platelet-shaped nacreous pigment is coated with a polymer resin and, if appropriate, plasticizers, solvents and surfactants.

Abstract: Hydroxyalkylphenones of formula I ##STR1## wherein R is hydrogen, halogen, alkyl of 1 to 18 C atoms, alkoxy of 1 to 4 C atoms or ##STR2## R.sub.a is hydrogen, halogen or alkyl of 1 to 4 C atoms; R.sup.1 and R.sup.2 (a) are each alkyl of up to 14, together 4 to 16, C atoms or together are alkylene of 4 to 8 C atoms, if R is hydrogen, halogen, alkyl of 1 to 6 C atoms or alkoxy of 1 to 4 C atoms, or (b) are each alkyl of 1 to 6 C atoms or together are alkylene of 2 to 8 C atoms, if R is alkyl of 3 to 18 C atoms or ##STR3## R.sup.3 and R.sup.4 are each alkyl of 1 to 6 C atoms or together are alkylene of 2 to 8 C atoms and Z is --CO--, --CH.sub.2 --, --O-- or --S--; are suitable as initiators for radiation curing aqueous prepolymer dispersions. They have good stability in aqueous systems and also upon removal of the water from these systems, and they have a considerably increased reactivity in their ability to initiate the curing of aqueous systems curable by radiation.

Abstract: Pearlescent pigments having improved weathering resistance are based on mica flakes coated with metal oxides, these pigments possessing on top of the coat of metal oxide a topcoat which contains a polysiloxane and a rare earth metal compound.

Abstract: Pigmented substantially crack-free casein plastic compositions containing a minor, luster-imparting quantity of coated mica platelets, wherein at least 75% of the pigment particles possess an average platelet size of below 10 .mu.m., a thickness of about 0.1 to 0.7 .mu.m. and a ratio of diameter to thickness of about 10 to 200.