Abstract: The invention relates to a coating agent containing a) one or more polyester resins (A); b) one or more polyacrylate resins (B); c) one or more di- and/or polyisocyanates (C) with free or blocked isocyanate groups; d) one or more light stabilizers (L1) based on a UV absorber; e) one or more light stabilizers (L2) based on sterically hindered amines; and f) one or more organic solvents (D). The coating agent is characterized in that 1) the polyester (A) has a hydroxyl number of 80-200 mg KOH/g and an acid number <10mg KOH/g; 2) the polyacrylate resin (B) has a hydroxyl number of 80-200 mg KOH/g and an acid number <20 mg KOH/g; and 3) the light stabilizer (L2) based on sterically hindered amines is functionalized by aminoether.

Abstract: A layered material consisting of a substrate of heat-sensitive material, preferably wood, and a powder paint coat applied thereon, characterized in that it is obtained by a) optional application of an extender coat, b) optional application of at least one (water-based) paint, c) heating of the substrate by microwave irradiation, d) optional hardening of the liquid paint, preferably by ultraviolet irradiation, e) application of the powder paint, preferably by electrostatic spraying or by the Tribo process, f) heating of the powder paint to sintering temperature, g) subsequent hardening of the paint coat.

Abstract: The invention relates to a system for the application of quick-drying coating compositions, where the system contains of [sic] a plastic container having a pressure release valve and containing the coating composition, of [sic] a sponge having a planar application surface and having a pore structure, connected by capillaries and open at the application surface, which sponge embeds the pressure release valve, and of [sic] a lid for airtight sealing of the sponge when the system is not being used.

Abstract: A process is described for preparing radiation-crosslinkable polymeric acrylates and methacrylates, which involves reacting an acrylate or methacrylate copolymer containing units having a reactive side group with a compound that contains a group which is capable of reacting with the reactive side group and also a group which is capable of forming free radicals under the action of actinic radiation. The preparation of the modified, photoactive polymers by polymer-analogous reaction makes it possible to do without the laborious handling of aggressive, specially synthesized monomers, especially acrylic esters. The products of the process can be employed widely as radiation-curable coating materials.

Abstract: The invention relates to a process for preparing an aqueous powder coating dispersion, which comprises introducing a liquid melt comprising binders and crosslinking agents and also, if desired, catalysts, auxiliaries and further additives such as devolatilizers, UV absorbers, free-radical scavengers and/or antioxidants into an emulsifying apparatus, preferably with the addition of water and stabilizers, and cooling and filtering the resultant emulsion.

Abstract: An agent for the single-stage full blocking of polyisocyanates comprises or consists of an alcohol mixture A) comprising a) furfuryl alcohol or substituted furfuryl alcohols in an amount corresponding to from 60 to 90, in particular from 65 to 85, mol % of hydroxyl groups and b) at least one monoalcohol in an amount corresponding to at least 2 mol % of hydroxyl groups, based in each case on the total amount of hydroxyl groups in components a) and b). In addition, the alcohol mixture A) may also include at least one aliphatic polyol c) of low molecular mass with a functionality of three and/or more in an amount corresponding to at least 5 mol % of hydroxyl groups, based on the total amount of hydroxyl groups in components a), b) and c). In this case component b) can have a molecular weight of <163 g/mol.

Abstract: The use as an additive for coating formulations is claimed of a polymer dispersion which comprises (i) an acrylate polymer based on from 30 to 60% by weight of C1-C8-alkyl (meth)acrylate monomers, from 30 to 60% by weight of vinylaromatic monomers and from 0.5 to 10% by weight of (meth)acrylic acid, and (ii) a nonassociative rheology stabilizer comprising an acrylate copolymer based on C1-C6-alkyl (meth)acrylate and (meth)acrylic acid.

Abstract: The present invention relates to coating materials with hydroxyl-containing polymers and di- and/or polyisocyanates, at least some of whose isocyanate groups are blocked with a mixture of from 30 to 85% by weight of one or more dialkyl malonates in which at least one of the ester radicals is an aliphatic, cycloaliphatic and/or araliphatic secondary alkyl radical having at least 3 carbon atoms and 70 to 15% by weight of at least one other dialkyl malonate. Preparation and the blocked polyisocyanates and coating materials and use of the coating materials is also provided.

Abstract: The present invention relates to an aqueous binder dispersion for cathodic electrodeposition coatings obtained A) by reacting I. a precursor prepared at temperatures of from 120 to 180° C. from a) a diepoxide compound or a mixture of diepoxide compounds and b) an aromatic or aliphatic compound hydroxyl, carboxyl, phenol and/or thiol groups, or a mixture of such compounds with reaction of the phenolic hydroxyl groups with epoxide groups, II. with at least one organic amine or a mixture of organic amines at a temperature between 60 and about 130° C. to give an epoxide/amine adduct; B) subsequently or simultaneously reacting at least one secondary hydroxyl group of the precursor with an unreacted epoxide group of the epoxide/amine adduct prepared in step A) at a temperatures of from about 110 to about 150° C.; C) adding a crosslinking agent at a temperature of less than about 150° C.

Abstract: The present invention relates to a coating composition featuring increased solids contents, which comprises at least one polyol I obtainable by subjecting at least one oligomer of the general formula I R1R2C═[═CH—R—CH═]n—CR3R4  (I) in which R=—(—CH2—)m—, in which the index m is an integer from 2 to 6, or in which X=—CH2— or an oxygen atom R1,R2,R3 and R4 independently of one another=hydrogen atoms or alkyl; and the index n=an integer from 1 to 15; to hydroformylation and reducing the resultant aldehyde-functional products I to give the polyols I, which, if desired, are subjected to partial or complete hydrogenation.

Abstract: The present invention relates to a process for producing scratch-resistant coatings which comprises applying a coating composition which in the cured state has a storage modulus E′ in the rubber-elastic range of at least 107.6 Pa and a loss factor tan &dgr; at 20° C. of not more than 0.10, the storage modulus E′0 and the loss factor having been measured by dynamic mechanical thermoanalysis on homogeneous free films having a film thickness of 40±10 &mgr;m. The present invention additionally relates to the use of the process for producing multicoat finishes and also to coating compositions suitable for this process.

Abstract: The present invention relates to a process for the multilayer coating of substrates with electrodeposition and powder coating materials, in which electrodeposition is used to apply at least one coat (2) of electrodeposition coating material to the substrate (1), after deposition the substrate (1) is, if desired, wholly or partially air-dried, a coat of powder coating material (3) is then applied, and finally electrodeposition coating material and powder coating material are jointly baked.

Abstract: The present invention relates to triboelectrically chargeable powder coating materials to which benzimidazole-based additives are added.

Abstract: To obtain paint compositions with which it is possible to form paint films which have excellent acid resistance, weather resistance and heat resistance and which also have excellent yellowing resistance. A heat hardenable paint composition which contains (A) polyol which has in each molecule two or more sterically protected secondary hydroxyl groups, being a polyol obtained by means of an esterification reaction of an epoxy group containing compound which has one epoxy group and which does not have a polymerizable unsaturated bond and a carboxyl group containing compound which has two or more carboxyl groups; and (B) 1,3,5-triazine-2,4,6-tris-carbamic acid ester which can be represented by the general formula indicated below, or an oligomer thereof, wherein the mol ratio secondary hydroxyl groups originating from the aforementioned (A) component:NHCOOR groups originating from the aforementioned (B) component in the composition is from 1:3 to 3:1.

Abstract: The invention relates to a process for preparing a binder for electrodeposition coating compositions comprising providing: (A) from 1 to 99.9% by weight of an epoxy resin and (B) from 0.1 to 99.% by weight of a copolymer of vinyl acetate and at least one further component selected from the group vinyl alcohol, alkyl-vinyl acetal and ethylene, characterized in that components (A) and (B) of the binder are mixed intensively in a solvent or in the melt before being used in the coating composition, preferably in the presence of epoxy ring-opening catalysts.

Abstract: The invention relates to a component system for a multicomponent coating composition comprising a hydroxy-functional binder or a mixture of hydroxy-functional binders, tris(alkoxycarbonylamino)triazine or a mixture of tris(alkoxycarbonylamino)triazines and free isocyanates or a mixture of free polyisocyanates. It is characterized in that a first component (I) is formed at least from the hydroxy-functional binder or the mixture of hydroxy-functional binders, in that a second component (II) is formed at least from the free isocyanates or the mixture of free polyisocyanates, and in that a third component is formed from the tris(alkoxycarbonylamino)triazine or the mixture of tris(alkoxycarbonylamino)triazines.

Abstract: The present invention relates to a coating formulation for use in multicoat paint systems, which a) comprises as binder a water-dilutable polyurethane resin which has an acid number of from 10 to 60 and a number-average molecular weight of from 4000 to 25,000 and can be prepared by reacting with one another aa) a polyester—and/or polyether-polyol having a number-average molecular weight of from 400 to 5000 or a mixture of such polyester—and/or polyether-polyols, bb) a polyisocyanate or mixture of polyisocyanates, cc) a compound which has in the molecule at least one group which in reactive toward isocyanate groups and at least one group which is capable of forming anions, or a mixture of such compounds, and optionally dd) a hydroxyl—and/or amino-containing organic compound having a molecular weight of from 40 to 400, or a mixture of such compounds and at least partially neutralizing the resulting reaction product, and b) comprises pigments and/or fillers, the ratio of binder to pigment

Abstract: Adhesive coating film consisting of a) a radiation-cured coat which comprises from 40 to 90% by weight, preferably from 50 to 60% by weight, of urethane acrylate, from 0 to 20% by weight, preferably from 10 to 15% by weight, of polyether acrylate, from 10 to 50% by weight, preferably from 25 to 40% by weight, of reactive diluent, from 0 to 30% by weight of pigments from 0 to 10% by weight, preferably from 2 to 5% by weight, of a carboxy-functional (meth)acrylic esther [sic], from 0 to 10% by weight of other customary coatings fillers, and in the case of curing with UV radiation, from 0 to 10% by weight, preferably from 3 to 6% by weight, of photoinitiator, and b) which carries on one side an adhesive composition which has free NCO groups in the freshly applied adhesive composition, can be plastified thermally, especially under the intended processing conditions, and has a markedly weak surface tack.

Abstract: The invention concerns a laminate comprising: a) a plastics foil; b) an adhesion-promoting layer based on polyurethane containing one or a plurality of polyester diols with a molecular weight of between 600 and 1200, preferably between 800 and 1000; c) optionally a further plastics foil; d) optionally a further polyurethane-based adhesion-promoting layer, e) optionally a varnish layer, f) optionally a filler layer; and g) a carrier material layer, preferably of plastics, wood or metal.

Abstract: The present invention relates to an electrodepositable coating composition comprising binders, pigments, fillers, corrosion protection inhibitors, paint auxiliaries, catalysts if desired, organic solvents and water, which additionally comprises an organic amine salt.