Abstract: An aqueous binder vehicle dispersion and coating media, which can be used for multi-layer coating, wherein the dispersion is obtainable by the reaction ofI. 20 to 97% by weight of a polyurethane(-urea) resin containing groups which are reactive towards a chain extender IV), having a number average molecular weight (Mn) of 1000 to 10,000, and 8 to 80 milliequivalents per 100 g of ionic groups, groups which can be converted into ionic groups and/or hydrophilic groups,II. 0 to 30% by weight of a polyester resin having a number average molecular weight (Mn) of 500 to 5000, and having the same groups as in I) which are reactive towards IV), andIII.

Abstract: Aqueous coating compositions suitable for multi-layer lacquer coatings which contain binders based on water-dilutable polyol compounds in the form of hydroxy-functional poly(meth)acrylates, polyurethanes, polyethers, polyesters and/or polyester-modified poly(meth)acrylates together with crosslinking agents based on aminoplastic resins, phenolic resins, free and/or capped polyisocyanates prepared using poly(C.sub.2 -C.sub.3)alkylene glycol di(C.sub.1 -C.sub.4)alkyl ethers.

Abstract: A method of determining the visual effect of lacquer coatings in which one, two or more lacquer coatings are applied to the surface of a flat substrate and are dried or hardened, wherein one or two of the lacquer coats are applied with a coat thickness gradient, and one or more surface properties which influence the visual impression are subsequently each measured on the lacquered surface thus obtained, at measuring points distributed over the surface, by means of one or more optical methods of measurement, and the respective thickness of the lacquer coat(s) applied in the form of a gradient is also measured, as well as an apparatus for carrying out the method.

Abstract: A process for the production of automobile parts lacquered with two coats, in which two coating layers are applied on both sides of a coil of sheet metal and are each stoved, and corresponding sheet metal parts are then stamped out of the coil and shaped by the deep-drawing process. In each case by the coil coating process, a coating composition (A) which comprises, based on its solid resin composition, 55 to 80 wt. % of one or more polyester-polyols, 2 to 10 wt. % of one or more aromatic epoxy resins and, as crosslinking agents, 5 to 15 wt. % aminoplast resin and 10 to 25 wt. % blocked polyisocyanate is applied to produce the first coating layer, and a coating composition (B) which comprises, based on its solid resin composition, 60 to 80 wt. % of one or more polyester-polyols and, as crosslinking agents, 10 to 20 wt. % aminoplast resin and 10 to 20 wt. % blocked polyisocyanate is applied to produce the second coating layer, the sum of the constituents of the coating compositions in each case being 100 wt.

Abstract: The invention concerns a process for preparing coating powder compositions in which one or a plurality of base resins and one or a plurality of hardeners, each of which is in solid form, is dissolved with a low-molecular compound above its critical pressure and critical temperature. This low-molecular compound is inert with respect to the base resins and hardeners and is in gaseous form under normal operating conditions with respect to pressure and temperature. The pressure of the resultant solution is then reduced, for example, by spraying. The resultant coating powder composition can be sprayed directly onto a substrate to be coated. Coating powders can also be recycled according to the process of the invention.

Abstract: Concentrate containing cathodically depositable binders, optionally crosslinking agents, optionally organic solvents, pigments and optionally extenders, together with water, having a solids content of 35 to 50 wt. % at a weight ratio of pigment and optionally extender to binder and crosslinking agent of 0.01:1 to 0.4:1, having a viscosity of 100 to 500 mPa.cndot.s, measured by rotational viscosimetry at 20.degree. C. and a shear gradient of 150 s.sup.-1 and a solvent content of 0 to below 20 wt. %, relative to solids content, process for the production thereof and use thereof in processes for producing or replenishing cathodically depositable electrocoating lacquer baths.

Abstract: Coating composition for producing heat radiation-reflecting coatings.The invention relates to a coating composition for producing heat radiation-reflecting coatings that contains a binder, pigments and solvents and/or water. One or more black pigments or specially formulated colored pigments are used as pigments. The coating composition also contains finely dispersed silicic acid. The coating composition is particularly suitable for coating metal, wood or plastics, and may for example reduce heating effects in interiors of means of transportation.

Abstract: This invention relates to a method for matching a color formulation to a color shade model in the field of a color- and/or effect-imparting surface coating. The reflecting surface of a color shade, which is to be rematched, of a colored surface coating is determined metrologically over the visible spectral region using a goniometric spectral photometer with variation of the angle of measurement. The associated standard tristimulus values and/or the vectors in the CIELAB color solid which are derived therefrom are calculated from the measured reflection factors or spectral energy factors. Those formulations and/or color shades which exhibit reflection properties or properties derived therefrom which are the most similar to the measured color shade model are subsequently identified from a formulation database by means of the reflection spectra or the calorimetric dimensional numbers derived therefrom.

Abstract: This invention relates to coating media based on one or more styrene-free, unsaturated polyester resins, which containA) one or more unsaturated polyesters obtainable by the reaction ofa) 0.5 to 1.0 mole of at least one alpha,beta-ethylenically unsaturated dicarboxylic acid or the anhydride thereof,b) 0 to 0.5 mole of at least one aromatic, aliphatic and/or cycloaliphatic saturated dicarboxylic acid or the anhydride thereof,c) 0.4 to 0.8 mole of at least one aliphatic saturated dihydric alcohol,d) 0.5 to 1.2 mole of at least one hydroxy-functional allyl ether,B) one or more polyglycol diacrylates of general formula ##STR1## where n=2-5 and m=2-5, particularly dipropylene glycol diacrylate, C) one or more initiators, andoptionally one or more organic solvents, one or more pigments and/or extenders, as well as accelerators, catalysts and/or customary lacquer additives.

Abstract: Coating media and their use in processes for producing single-layer and multi-layer coatings are described. The coating media contain an aqueous mixture comprisingI. 99-70% by weight of a mixture ofA) 50-100% by weight of one or more binder vehicles which at least in part contain ionic groups,B) 0-50% by weight of one or more crosslinking agents, which at least in part may contain ionic groups, for binder vehicle A), wherein the ionic groups which are present have the same charge as those of component A), andII.

Abstract: A pigment paste forming resin having a viscosity of from about 50 to about 5,000 mPa and a solids content of from about 20 to about 40%, containing from about 20 to about 50 parts of a polyester urethane resin having an acid number of from about 10 to about 50, with from about 70 to about 100% of the acid groups being neutralized, the resin being prepared by the reaction of (a) one or more polyester polyols that do not contain any carboxyl groups, having an OH number of from about 35 to about 200, and a number average molecular weight of from about 500 to about 5000, mixed with from about 2 to about 30 wt. % based on the polyester polyol of one or more low molecular weight diols having a molecular weight of from about 60 to about 350, whereby a part of the low molecular weight diol contains at least one acid group capable of forming an anion, and with 0 to about 6 wt.

Abstract: This invention relates to a water-thinnable dispersion of one or more cationically modified and urethane-modified (meth)acrylic copolymers, which are produced by the solution polymerisation of unsaturated monomers which are polymerisable by a radical mechanism, or of a mixture of such monomers. Coating media based on this dispersion are particularly suitable for the production of base coats in multi-layer coatings, particularly in the coating of vehicles and vehicle parts.

Abstract: Aqueous, heat-curable coating compound containingfrom 38.5 to 80% by weight of one or more film-forming copolymers and/or cocondensates which are emulsifiable in water or rendered water soluble by neutralisation with bases, having a number average molecular weight (Mn) of from 800 to 10,000, a hydroxyl number of from 60 to 390 and an acid number of from 15 to 60,B) from 0 to 25.5% by weight of one or more polyester oligomers having a calculated molecular weight of from 200 to 1000, a hydroxyl number of from 280 to 600 and an acid number of from 0 to 1.5,C) from 3.5 to 40% by weight of one or more amine resin cross-linking agents andD) from 0.5 to 28% by weight of one or more masked polyisocyanates,the percentages by weight of components A) to D) being based in each case on the solids contents by weight of the resins and adding up to 100% by weight,and water and optionally one or more organic solvents, pigments, fillers and/or the conventional auxiliary agents and additives used in lacquers.

Abstract: This invention relates to two-component, solvent-thinnable coating media based on a polyisocyanate component and a component which reacts with isocyanate. The coating media contain one or more hydroxy-functional copolymers, one or more secondary polyamines containing ester groups, one or more aliphatic and/or cycloaliphatic polyisocyanates containing allophanate groups, extenders and/or pigments and optionally one or more organic solvents and customary lacquer additives. 60 to 75% by weight of aluminium hydroxide and calcium magnesium carbonate are contained in total, with respect to the total amount of extenders and/or pigments.

Abstract: Aqueous emulsion of one or more water dilutable epoxide resins, containing10 to 70 wt % of one or more epoxide resins5 to 50 wt % of one or more organic solvents having a boiling point of 100.degree. to 160.degree. C.,10 to 70 wt % of water,and one or more chlorinated polyolefines in a weight ratio of epoxide resins:chlorinated polyolefine of 10:0.5 to 10:4.5, percentages by weight relating in each case to the total aqueous emulsion.The emulsions can be used for the preparation of coating agents, especially for coating plastic substrates.

Abstract: Coating agents are described, that are suitable for the production of pigmented or transparent top coatings, based on hydroxy-functional (meth)acrylic copolymers, aliphatic and/or cycloaliphatic polyisocyanates, solvents, and customary lacquer additives and pigments. They are free from epoxy resins and nitrocellulose and contain as binderA) one or more (meth)acrylic copolymers, containing hydroxyl groups, froma1) 47-53 wt % of one or more aromatic vinyl compounds,a2) 28-33 wt % of one or more hydroxyalkyl methacrylates,a3) 14-19 wt % of one or more alkyl (meth)acrylates, anda4) 0.5-2 wt % acrylic acid and/or methacrylic acid,with a hydroxyl number of 120-160 mg KOH/g, an acid number of 5 to 15 mg KOH/g, a weight-average molecular weight of 10,000 to 20,000 and a glass transition temperature of +40.degree. C. to +60.degree. C., andB) an aliphatic and/or cycloaliphatic polyisocyanate or a mixture of such polyisocyanates in such an amount that 0.5 to 2.

Abstract: The re-use of lacquer slurry in the manufacture of aqueous coating agents is described,A) one part by weight of freshly obtained lacquer slurry with a water content of 10 to 50% by weight being incorporated under shearing action intoB) 0.15 to 0.6 parts by weight of a mixture ofB1) one or more organic solvents with a water solubility exceeding 500 g per liter of water at 20.degree. C.,B2) one or more organic solvents with a water solubility below 500 g per liter of water at 20.degree. C.,B3) one or more amines and/or aminoalcohols andB4) optionally, one or more wetting agents common to lacquers,a homogenization by the shearing action taking place either in the entire component B) or initially in the component B1) with subsequent addition of the components B2), B3) and optionally B4),whereupon0.4 to 1.

Abstract: Sulfonic acid esters are used as (a) compounds for forming a strong acid on irradiation in radiation-sensitive, positive or negative working mixtures also comprising (b) either a compound with at least one acid-decomposable C--O--C or C--O--Si bond (for positive working mixtures) or a compound with at least acid-cross-linkable groups (for negative working mixtures) and c) a binder which is insoluble in water but soluble or at least swellable in aqueous alkaline solutions, wherein said sulfonic acid esters are formula?R.sup.1 --CR.sup.2 (CF.sub.3)--O--SO.sub.2 --!.sub.n R.sup.3(I)orR.sup.1 ?--CR.sup.2 (CF.sub.3)--O--SO.sub.2 --R.sup.3 !m (II)wherein R.sup.1, R.sup.2, R.sup.3, n and n are defined with the body of the disclosure. These mixtures are particularly suitable for exposure to deep UV radiation in the formation of recording materials suitable for the production of photoresists, electronic components, and printing plates.

Abstract: A binder composition, a coating composition containing this binder, a process for its production and use to produce single or multi-layer lacquer coatings, particularly in the automotive sector, are described. The binder composition containsA) 25 to 75 wt. % of one of more resins containing carboxyl groups, which may contain .alpha.,.beta.-unsaturated groups, with a number average molecular weight (Mn) of 500 to 10000 g/mol and an acid value of 15 to 200 mg KOH/g,B) 25 to 75 wt. % of one or more polyethers, polyesters, polyether/polyesters and/or (meth)acrylic copolymers with at least one .alpha.,.beta.-unsaturated group and at least one epoxy group per molecule, wherein the .alpha.,.beta.-unsaturated groups and epoxy groups are present in a numerical ratio of 20:80 to 80:20, with a number average molecular weight (Mn) of up to 10000 g/mol,C) 0 to 60 wt. % of one or more polyols with at least two hydroxyl functional groups per molecule,D.sub.1) 0 to 20 wt. % of one or more melamine resins,D.sub.2) 0 to 40 wt.

Abstract: A simplified process for producing a corrosion-protecting, well adhering lacquer coating, and the workpieces obtained thereby, is described. The process comprisessubjecting a metal substrate to a pre-treatment by spray or dip phosphate treatment and without subsequent passivation treatment, optionally after a drying,carrying out an electrophoretic dip lacquer coating of the metal substrate treated in this way wherein an electro dip lacquer is used which contains bismuth in the form of an organic bismuth complex and/or a bismuth salt of an organic carboxylic acid in a content of 0.1 to 5 wt. % calculated as bismuth and related to the binder solids in the electro dip lacquer.