Abstract: A formaldehyde-free binder composition is for mineral fibres.

Abstract: The invention relates to a method for producing oxidized lignins.

Abstract: The invention relates to a method for producing oxidized lignins.

Abstract: The invention relates to a method for drying microfibrillated cellulose, comprising at least the following steps: (i) applying a composition comprising microfibrillated cellulose and a liquid onto a cold surface; (H) removing the frozen composition formed in step (i) from said surface to form frozen particles; (iii) optionally increasing the size of the frozen particles formed in step (ii); (iv) drying the frozen particles formed in step (iii) comprising: subjecting said particles to a cold moving gas thus removing liquid by means comprising sublimation and optionally (v) isolating the microfibrillated cellulose formed in step (iv). The invention also relates to a device for carrying out the method of the invention.

Abstract: The device comprises a stator with gear rings and a rotor with teeth meshing with the teeth of the stator. Between arms of the rotor protrudes a guiding funnel that concentrates the material flow coming in from above to the central area of the container. The outer surface of the guiding funnel defines an annular gap throttling the material flow. At the rotor, a feed screw is provided that feeds towards the working region of the device. The guiding funnel retains the product in the active region of the device and the feed screw generates an increased material pressure in the center.

Abstract: The present invention relates to novel pearlescent pigments based on substrates comprising at least one selectively light absorbing layer, which consists of a chalcogenide and/or oxychalcogenide, preferably sulfides or oxysulfides. The coatings can be directly prepared by the precipitation of chalcogenides in liquid suspension onto the substrates. Preferably, metal oxides or mixed metal oxides are coated onto the substrate; the resulting precursor is transferred into a furnace and calcined under a sulfurizing gas flow to convert the oxides into oxysulfides and/or sulfides depending on the reaction parameters. The conversion to sulfides and/or oxysulfides is preferably carried out in a fluidized bed reactor. Angle-dependent optical pigments are thus produced, which are especially useful in paints, powder coatings, paper coatings, plastics, cosmetics, inks and security-enhancing features as well as ion decorative applications for foods and drugs.

Abstract: The present invention relates to novel pigments based on substrates coated with at least one selectively light absorbing layer of fluorides, oxyfluorides, fluorosulfides and/or oxyfluorosulfides. Metal oxides or mixed metal oxides are coated onto a substrate; the resulting precursor is transferred into a furnace and calcined under a fluoridizing and/or sulfurizing gas flow to convert the oxides into fluorides, oxyfluorides, fluorosulfides and/or oxyfluorosulfides depending on the reaction parameters. The conversion to fluorides, oxyfluorides, fluorosulfides and/or oxyfluorosulfides is preferably carried out in a fluidized bed reactor. Angle-dependent optical pigments are thus produced which are especially useful in paints, powder coatings, paper coatings, plastics, cosmetics, inks and security-enhancing features as well as in decorative applications for foods and drugs.

Abstract: The present invention relates to pearlescent pigments based on substrates coated with one or more layers of nitrides or oxynitrides to a method for the production of such pigments and their use in plastics, paints, coatings, powder coatings, inks, printing inks, glasses, ceramic products, agriculture foils, for lasermarking of papers and plastics, security applications and in cosmetic formulations.

Abstract: The present invention relates to pearlescent pigments based on substrates coated with one or more layers of nitrides or oxynitrides to a method for the production of such pigments and their use in plastics, paints, coatings, powder coatings, inks, printing inks, glasses, ceramic products, agriculture foils, for lasermarking of papers and plastics, security applications and in cosmetic formulations.

Abstract: The device comprises a stator with gear rings and a rotor with teeth meshing with the teeth of the stator. Between arms of the rotor protrudes a guiding funnel that concentrates the material flow coming in from above to the central area of the container. The outer surface of the guiding funnel defines an annular gap throttling the material flow. At the rotor, a feed screw is provided that feeds towards the working region of the device. The guiding funnel retains the product in the active region of the device and the feed screw generates an increased material pressure in the center.