Abstract: The present invention relates to a method for determining a characteristic number for characterizing the quality of a shade setting of a paint in relation to a color reference, characterized in that colorimetric coordinates of the paint and of the color reference are determined with a spectrophotometer for a number of measurement geometries and wherein respective color differences are calculated and standardized from the colorimetric coordinates of the paint and of the color reference for each measurement geometry of the number of measurement geometries, and where a group of characteristic values calculated from the respective standardized color differences is assigned a scale value for determining the characteristic number by means of an assignment rule to be provided in advance.

Abstract: The present invention relates to a copolymer (A) having a glass transition temperature Tg of at least ?30° C. obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and in the presence of at least one initiator, where the mixture of monomers (a) to be polymerized comprises (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1=C1 to C4 alkoxy, R2=C1 to C4 alkyl, and m=0 to 2, and (a2) 40 to 90 mol % of at least one olefinically unsaturated monomer selected from the group consisting of monomers of the formulae H2C?CH2—(C?O)—O—Rx, H2C?CH(CH3)—(C?O)—O—Rx, and H2C?CH2—O—(C?O)—Rx, where Rx is an alkyl radical having 1 to 20 carbon atoms, and where the sum total of the molar fractions of the monomers (a1) and (a2), based on the total molar amount of monomers (a) used, is at least 90 mol %, and where the copolymerization is carried out at a temperature from 60 to 200° C. and at a pressure of at least 2 bar.

Abstract: A method for producing a coating on a substrate. The method includes producing a clearcoat directly on the substrate by applying an aqueous clearcoat material directly to the substrate. The method further includes curing the applied clearcoat material, the clearcoat material being a two-component coating composition. Also disclosed are coatings produced according to the method and their uses.

Abstract: The invention relates to aqueous dispersions comprising multistage-prepared polymers, and also to coating material compositions comprising them, preparable by multistage polymerization of olefinically unsaturated monomers, using an emulsifier and a water-soluble initiator, under conditions of starved feed polymerization, and using particular monomer mixtures in the individual stages. The invention also relates to a pigmented aqueous basecoat material comprising the aqueous dispersion of the invention, to the use of the aqueous dispersion of the invention in aqueous basecoat materials for improving adhesion, to a process for producing a multicoat paint system on a substrate, and to a multicoat paint system produced in accordance with the stated process.

Abstract: A radiation curable resin composition comprising: (A) metal oxide particles; (B) at least one photoinitiator, preferably a radical photoinitiator, or any mixture thereof; (C) at least one acrylate or methacrylate component with a ClogP higher than 2, preferably higher than 4, more preferably higher than 5, or any mixture thereof; (D) at least one monofunctional acrylate or methacrylate diluent component, preferably with a viscosity below 40 mPa·s at 20° C., or any mixture thereof; (E) at least one acrylate or methacrylate component with functionality equal or higher than 3, preferably 3 or 4, or any mixture thereof; can be advantageously used, for example, in multilayer barrier stacks for the production of organic opto-electric or opto-electronic device, such as Organic Light Emitting Diode (OLED).

Abstract: The present invention relates to a solventborne, pigmented coating composition, which comprises, based on the total amount of the coating composition, 0.02 to 0.75 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and the copolymer (A) possesses a glass transition temperature Tg of at least ?30° C.

Abstract: Provided are aqueous resin solutions having unique rheologies and products incorporating the same. The water-based materials provided herein are thermo-thickening, and the materials increase dramatically in viscosity (at least 100 times) in a desired temperature range increase (20 C to <100 C) at ambient pressure. Suitable resins comprising a hydrophobic group and a hydrophilic group may be selected from an epoxy resin, a phenol-formaldehyde resin, a polyurethane resin, an acrylic resin, a polyester resin, an acrylic-urethane resin, a melamine resin, a melamine-formaldehyde resin, an amino resin, and combinations thereof. A specific epoxy functional resin/polymer suitable for the resin solutions are prepared by reacting (A) an epoxy pre-polymer of (1) one or more polyols and (2) one or more epoxy functional materials with (B) a di- or polyamine, thereby forming the aqueous thermo-thickening resin solution. The resin solutions are substantially free of cross-linking agents.

Abstract: Provided herein is a safety and control device for pressure vessels for application devices for liquid media including a safety valve, a control device for the operating pressure, a pressure indicator, and a pressure relief, as well as a means for connecting the device to the pressure vessel, the device having a housing, which is provided with a compressed air supply and an air outlet, and a multifunctional slide arranged within the housing. The multifunctional slide defines a channel, which is connected to a blind bore and a pin and at the end has means for relieving the pressure by manual actuation. A spiral spring encloses a pin and supports the multifunctional slide with respect to a bottom of the housing. Locking means enable the pin to be arrested in a position protruding from the housing.

Abstract: The present invention relates to a two-component coating composition comprising (1) a paint base component comprising (A) at least one polycarbonate diol, (B) at least one diamine having secondary amino groups and having an aliphatic group (b1) between the nitrogen atoms of the amino groups, and also (2) a hardener component comprising (C) at least one polyisocyanate-modified polyester having an isocyanate content of 4% to 15%. The present invention also relates to a method for coating substrates by applying the coating composition, and to the use thereof.

Abstract: A nonaqueous coating material composition and a coating produced from the coating material composition are provided. The coating material composition contains at least one polyhydroxyl group-containing component, at least one polyisocyanate group-containing component, at least one catalyst, and at least one urethane additive (PF) which has specific groups. The urethane additive (PF) is prepared by reacting 0.5 to 20 mol % of the isocyanate groups originally present in a polyisocyanate (PI) with a component (Ia) and 10 to 99.5 mol % of the isocyanate groups originally present in the polyisocyanate (PI) with a component (IIa). The component (Ia) contains at least one perfluoroalkyl group of a specific formula and one group reactive toward the isocyanate groups. The component (IIa) contains at least one silane group of a specific formula and one group reactive toward the isocyanate groups.

Abstract: The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one compound of the formula (I) X1—Y—X2??(I) in which X1 and X2, independently of one another, are each a functional group which is reactive toward hydroxyl groups, and Y is a divalent aliphatic or araliphatic, carboxy-functional organic radical having a number-average molecular weight of 100 to 1000 g/mol, with (b) at least one polyether of the general structural formula (II) in which R is a C3 to C6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 200 to 4000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses a number-average molecular weight of 500 to 15 000 g/mol and an acid number of 10 to 120 mg KOH/g.

Abstract: The present invention relates to aqueous binder dispersions for cationic electrocoat materials, comprising as binders amine-modified, hydroxy-functional epoxy resins and comprising as crosslinker at least one fully blocked polyisocyanate blocked at least partly with 2,2-dimethyl-1,3-dioxolane-4-methanol, and also to the use of such cationic electrocoat materials for producing coating systems and to the use of crosslinkers based on polyisocyanates blocked with 2,2-dimethyl-1,3-dioxolane-4-methanol in aqueous binder dispersions.

Abstract: A dimer fatty acid-polyether-reaction product prepared by reacting a composition containing at least 80 wt % of one or more dimer fatty acids with at least one polyether of application formula (I) in a molar ratio of 0.7/2.3 to 1.6/1.7. The reaction product has a number-average molecular weight of 4800 to 40000 g/mol and an acid number of less than 10 mg KOH/g.

Abstract: Disclosed herein is a coating material compositions containing (A) a polyhydroxyl group-containing component, (B) a component (B) having on average at least one isocyanate group and having on average at least one of: at least one hydrolyzable silane group of the formula (I): —NR—(X—SiR?x(OR?)3-x), and at least one hydrolyzable silane group of the formula (II): —N(X—SiR?x(OR?)3-x)n(X?—SiR?y(OR?)3-y)m, (D) a phosphorus and nitrogen-containing catalyst, and a catalyst (Z), wherein: the catalyst (Z) is selected from zinc and bismuth carboxylates, of aluminum, zirconium, titanium and/or boron chelates and/or of inorganic, tin-containing catalysts, and mixtures thereof; and the coating material composition comprises at least one reaction accelerator (R) which is selected from the group of inorganic acids and/or of organic acids and/or of partial esters of the inorganic acids and/or of partial esters of the organic acids.

Abstract: Solvent-containing clearcoat coating composition comprising (A) an OH-functional (meth)acrylate (co)polymer comprising (A1) 30%-99% by weight, based on the mass of the nonvolatile fraction of (A), of at least one OH-functional (meth)acrylate (co)polymer having an OH number of 60-200 mg KOH/g and glass transition temperature Tg of 15° C. to 100° C., and (A2) 1%-70% by weight, based on the mass of the nonvolatile fraction of (A), of at least one OH-functional (meth)acrylate (co)polymer having an OH number of 60-200 mg KOH/g and a glass transition temperature Tg of ?100° C. to ?20° C., (B) a crosslinker component comprising functional groups reactive toward OH, (C) 0.02%-1.2% by weight, based on the mass of the nonvolatile fraction of (A), of at least one polyamide and (D) 0.04%-2.9% by weight, based on the mass of the nonvolatile fraction of (A), of at least one urea adduct of a polyisocyanate and benzylamine.

Abstract: The present invention relates to a pigmented aqueous basecoat material comprising a carboxy-functional dimer fatty acid-based reaction product which is preparable by reaction of (a) dimer fatty acids with (b) at least one compound of the general structural formula (I) where R is a C3 to C6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 120 to 6000 g/mol, components (a) and (b) are used in a molar ratio of at least 1/1 and the resulting reaction product possesses a number-average molecular weight of 1000 to 20 000 g/mol and an acid number of 10 to 120 mg KOH/g.

Abstract: The present invention relates to a pigmented aqueous basecoat material comprising a polyether-based reaction product which is preparable by reaction of (a) at least one diisocyanate of the formula (I) OCN—Y—NCO??(I) in which Y is a divalent aliphatic, aromatic or araliphatic hydrocarbon radical having from 6 to 30 carbon atoms, with (b) at least one polyether of the general structural formula (II) in which R is a C3 to C6 alkylene radical and n is selected accordingly such that the polyether (b) possesses a number-average molecular weight of 200 to 4000 g/mol, where components (a) and (b) are used in the reaction in a molar ratio of 0.7/2.3 to 1.6/1.7 and the resulting reaction product possesses a number-average molecular weight of 500 to 15 000 g/mol and an isocyanate content of less than 0.2%.

Abstract: The present invention relates to a solventborne, pigmented coating composition having a solids fraction of at least 35%, which comprises, based on the total amount of the coating composition, 0.1 to 1.5 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent, the mixture of monomers (a) to be polymerized consists of (a1) 10 to 60 mol % of at least one monomer of the formula (I) below where R1?C1 to C4 alkoxy, R2?C1 to C4 alkyl, and m=0 to 2, and also (a2) 40 to 90 mol % of at least one further olefinically unsaturated monomer, and the copolymer (A) possesses a glass transition temperature Tg of at least ?30° C. The present invention also relates to a method for producing a multicoat paint system using the coating composition, and to the multicoat paint systems themselves.

Abstract: A metering and mixing device contains a multichamber cartridge and a cartridge holder having a reception container for the multichamber cartridge and a compressed air connection and a connection for an application device. The reception container has an internal tube arranged coaxially to the walls of the cartridge holder and equipped with static mixing elements. The multichamber cartridge contains an upper portion having a directional valve, a middle portion configured as a tubular empty space surrounded by at least two chambers arranged tubularly in the direction of the longitudinal axis of the cartridge, and a lower portion having a piston for each chamber. The multichamber cartridge is arranged in the cartridge holder such that the inner wall of the inner tube of the multichamber cartridge bears, leak-tight, against the outer wall of the tube of the cartridge holder.

Abstract: The present invention relates to a radiation-curable coating composition, especially for producing a scratch-resistant coating on polycarbonate surfaces, comprising at least one urethane acrylate of an isocyanurate trimer of 1,6-hexamethylene diisocyanate and butanediol monoacrylate. The invention also relates to a method for producing scratch-resistant coatings on polycarbonate surfaces, to the use of the coating composition, and to a substrate coated accordingly.