Abstract: The present invention relates to a mixer system for the production of water-thinnable coating compositions having a precisely defined color shade, from various base colors, which mixer system is characterized in that it comprisesA) various base colors A which contain less than 5% by weight of water, at least one color and/or effect pigment, organic solvent, at least one water-dilutable or water-dispersible acrylic polyurethane resin (A1) and/or polyacrylate resin (A2) and optionally auxiliaries and additives, andB) at least one pigment-free component B which contains water.The present invention also relates to a process for the production of coating compositions using this mixer system and to the use of the mixer system for the production of aqueous basecoats for the coating of automobile bodies and/or plastic parts, in particular for automotive refinishing.

Abstract: The present invention relates to an aqueous multicomponent polyurethane coating composition comprisingA) a water-dilutable polyaddition resin (A1) and/or polycondensation resin (A2) containing hydroxyl and carboxylate groups and having an OH number of from 40 to 200 mg of KOH/g, preferably from 60 to 140 mg of KOH/g, an acid number of from 15 to 100 mg of KOH/g, preferably from 25 to 50 mg of KOH/g, and a glass transition temperature of from -40.degree. C. to +60.degree. C., preferably from -20.degree. C. to +40.degree. C.,B) a polyisocyanate component (B) as crosslinking agent andC) at least one additive,characterized in that it contains as additive a carbodiimide component (C) which has a content of carbodiimide groups --N.dbd.C.dbd.N-- of from 2 to 30% by weight, on average at least 0.

Abstract: The invention relates to a process for the preparation of articles with a three-dimensional surface structure, in which a substrate is printed, at least one of the printing inks employed for the printing being varnish-repellent, and the printed substrate is then varnished. In accordance with the invention, the printed substrate is varnished with a radiation-curable varnish which contains no amino resin and comprisesA) from 18 to 99.9% by weight of an epoxy acrylate, a polyether acrylate or a polyester acrylate,B) from 0.1 to 5.0% by weight of a Bronsted acid or an acid anhydride,C) from 0 ?sic! to 12% by weight of a photoinitiator,D) from 0 to 40% by weight of water or at least one organic solvent,E) from 0 ?sic! to 10% by weight of a polyol which may be ethoxylated and/or propoxylated and has from 2 to 50 carbon atoms in the molecule, andF) from 0 ?sic! to 30% by weight of other auxiliaries and additives,and the varnish coat applied is cured with high-energy radiation.

Abstract: The invention relates to the use of a mixture of(a1) a naturally occurring, zwitterionic phosphatide or a mixture of naturally occurring zwitterionic phosphatides and(a2) cholic acid and/or a salt of cholic acid and/or deoxycholic acid and/or a salt of deoxycholic acid and/or ricinoleic acid and/or a salt of ricinoleic acid and/or oleic acid and/or a salt of oleic acidas an emulsifier for the preparation of aqueous polymer dispersions which can be prepared by free radical emulsion polymerization of monomers which can be polymerized by free radicals or mixtures of monomers which can be polymerized by free radicals.

Abstract: The invention relates to a method for the production and repair of multicoat special-effect coatings, in which the basecoat is produced exclusively by elecrostatic spraying, a coating material with a specific rheological behavior is employed as the basecoat and the repair is carried out with the aid of a spray application process in which a spray jet is produced which is distinguished in thatat most 40% of the coating droplets passing a measurement point which lies at the center of the spray jet and 300 mm away from the nozzle have a diameter which is less than 20 .mu.m and at least 5% of the coating droplets have a diameter which is greater than 60 .mu.m,at least 20% of the coating droplets passing the measurement point have a speed which is less than 6 m/s and at most 30% of the coating droplets have a speed of more than 10 m/s, andthe coating droplets have a momentum which is equal to at least 4.times.10.sup.-5 g cm s.sup.

Abstract: Provided are compositions useful as paints which have excellent acid resistance and scratching resistance, and provide a good appearance. The thermoset compositions are comprised of a vinyl copolymer (A) comprised of lactone modified acrylic monomer and other monomer, a blocked polyisocyanate compound (B) which has been reacted with a mixture of malonic acid and acetoacetic acid, and an alkyl etherified amino resin (C).

Abstract: The present invention relates to water-dilutable polyurethane resins which are characterized in that they have been prepared using diols of the formula (I) ##STR1## in which R.sub.1 and R.sub.2 are an identical or different radical and are an alkyl radical having 1 to 18 carbon atoms, an aryl radical or a cycloaliphatic radical, with the proviso that R.sub.1 and/or R.sub.2 may not be methyl,and/or diols of the formula (II) ##STR2## in which R.sub.3, R.sub.4, R.sub.6 and R.sub.7 are each identical or different radicals and R.sub.3, R.sub.4, R.sub.6 and R.sub.7 are an alkyl radical having 1 to 6 carbon atoms, a cycloalkyl radical or an aryl radical and R.sub.5 is an alkyl radical having 1 to 6 carbon atoms, an aryl radical of an unsaturated alkyl radical having 1 to 6 carbon atoms, and n is either 0 or 1.

Abstract: Water dilutable binders, prepared by subjecting to free radical polymerization(A) from 20 to 90% by weight of a mixture of(a1) from 3 to 50% by weight of acrylic acid, methacrylic acid or a mixture of acrylic acid and methacrylic acid, and(a2) from 50 to 97% by weight of an ethylenically unsaturated monomer or a mixture of ethylenically unsaturated monomers,in the presence of(B) from 9.9 to 79.9% by weight of a halogen-free polyolefin free from maleic anhydride groups, or a mixture of halogen-free polyolefins free from maleic anhydride groups, and(C) from 0.1 to 10% by weight of a free radical initiator or a mixture of free radical initiatorsand, after neutralization of at least 20% of the carboxyl groups contained in the resulting polymerization product, dispersing the polymerization product in water, the sum of the percentages by weight of components (A), (B) and (C) and (a1) and (a2) in each case always being 100% by weight.

Abstract: The present invention relates to a process for the production of sealed packaging containers of plastics films, using a sealing coating based on an aqueous dispersion or solution of acrylate copolymer, where the aqueous dispersion of acrylate copolymer is prepared by emulsion polymerization offrom 1 to 15% by weight of .alpha.,.beta.-ethylenically unsaturated carboxylic acids,from 40 to 69% by weight of alkyl esters of acrylic acid having 1-12 carbon atoms in the alkyl radical,from 0 to 55% by weight of alkyl esters of methacrylic acid having 1-12 carbon atoms in the alkyl radical and/or vinylaromatics, andfrom 0 to 25% by weight of further monomers,the sum of the monomers in each case being 100% by weight. The glass transition temperature being not more than 50.degree. C.

Abstract: The present invention relates to a process for the preparation of an aqueous coating composition containing a carboxyl-containing epoxy resin having an acid number in the range from 5 to 200 mg of KOH/g and having an epoxide equivalent weight in the range from 1000 to 40,000, optionally crosslinking agents, organic solvents, optionally conventional assistants and additives, and optionally pigments and fillers. The organic binder solution is neutralized using a tertiary amine in the temperature range from 60.degree. C. to 120.degree. C. This is followed by dispersion in water, with the proviso that at least 95% of the epoxide groups of the epoxy resin have been reacted. The aqueous coating compositions prepared by the process are preferably used for coating cans.

Abstract: The present invention relates to addition products ofA) oligomers having at least two acrylic ester and/or methacrylic ester groups per molecule andB) diamines having a primary and a tertiary amino group,the ratio of primary amino groups of B) to the (meth)acrylic double bonds of A) being 0.01:1 to 0.2:1, preferably 0.03:1 to 0.1:1.The invention also relates to processes for the preparation of the addition products, to radiation-curable surface coating compositions based on the addition products and to the use of the surface coating compositions for woodcoating and papercoating.

Abstract: To form multi-layer paint films which have a good finished appearance on objects which are to be painted, using an aqueous base coat composition. An aqueous base coat composition which contains aqueous polyurethane resin and rheology control agent, the electrical conductivity measured in an aqueous solution of 3% by weight concentration of which is 700-900 mS/cm, is painted and then the paint film is formed, a transparent top coat is painted on the base coat paint film obtained in this way, and the base coat and the top coat are baked at the same time.

Abstract: The invention relates to nonaqueous paints which comprise(A) a hydroxyl group-containing synthetic resin or a mixture of hydroxyl group-containing synthetic resins(B) an amino resin or a mixture of amino resins(C) a blocked polyisocyanate or a mixture of blocked polyisocyanates, and(D) a pigment or a mixture of pigments, and are characterized in that component (C) contains both isocyanate groups blocked with a blocking agent (I) and isocyanate groups blocked with a blocking agent (II), in which contextthe blocking agent (I) is a dialkyl malonate or a mixture of dialkyl malonates,the blocking agent (II) is a blocking agent which is different from (I) and contains active methylene groups, or is an oxime, or is a mixture of these blocking agents, andthe ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) is between 1.0:1.0 and 9.0:1.0.

Abstract: Water-based primer composition made up of (A) a water-compatibilised modified polyolefin type resin, which is a modified polyolefin resin modified with an .alpha.,.beta.-unsaturated carboxylic acid, of a saponification value of 10-60 mg KOH/g, a number average molecular mass of 4000-30,000 and a degree of chlorination of 0-30 wt %, water-compatibilised by means of an amine compound, and if necessary additionally by a surfactant, (B) a water-compatibilised acrylic resin of a glass transition temperature of -50.degree. to 20.degree. C., and (C) a water-compatibilised polyurethane resin of a break elongation of 200-600%, and if necessary an additional curing agent, in which the contents of the different components are (A) 25-70 wt %, the sum of (B) and (C) 30-75 wt %, and the ratio by weight of (B)/(C) 100/0-50/50.

Abstract: The invention relates to copolymers containing on average 1.25 to 30 functional groups per molecule and a number average molecular weight of 1500 to 6000, which copolymers can be prepared by free-radical solution polymerization at 130.degree. to 200.degree. C. from 5 to 25% by weight of vinyl ester, 10 to 50% by weight of vinyl aromatic, 10 to 40% by weight of functional, monomers and, if desired further monomers, in which the vinyl ester is initially introduced and the remaining monomers are metered in for all monomers over a monomer addition period which is of the same length in the following manner: The amount of acrylate monomers added per unit of time remains constant. The amount of vinyl aromatic added over the first third of the monomer addition period is 15 to 30% by weight, the amount added over the second third is 25 to 40% by weight, and the amount added over the last third is 35 to 60% by weight, each relative to the total amount of vinyl aromatic.

Abstract: Also disclosed is an appliance for introducing sealing compound into lug caps, the appliance containing a turntable for accommodating the cap, and an injection unit, the injection unit containing a nozzle block, which has annularly arranged injection nozzles, and a delivery device for the sealing compound, the turntable and the nozzle block being arranged so as to be centered and the nozzle block being rotatable in the same direction as the turntable.The invention also relates to a process for introducing sealing compound into lug caps and to the use of the appliance for injecting sealing compound into lug caps.

Abstract: The invention relates to a process for the production of multi-layer finishes in which the base coating contains crosslinked polymer microparticles which are obtainable by(A) reacting a polyester-polyol or a mixture of polyester-polyols with a polyisocyanate or with a mixture of polyisocyanates and(B) when at least 25% of the NCO groups have reacted, dispersing the resulting reaction mixture in water.

Abstract: Coating composition comprising(A) at least one hydroxyl group-containing polyacrylate resin obtained by polymerizing(a) from 5 to 80% by weight of a cycloaliphatic ester of methacrylic acid and/or acrylic acid, or a mixture of such monomers,(b) from 10 to 50% by weight of a hydroxyl group-containing alkyl ester of methacrylic acid and/or acrylic acid, or mixtures of such monomers,(c) from 0 to 25% by weight of a hydroxyl group-containing, ethylenically unsaturated monomer, different from (a) and (b), or a mixture of such monomers,(d) from 5 to 80% by weight of an aliphatic ester of methacrylic and/or acrylic acid, different from (a)-(c), or a mixture of such monomers,(e) from 0 to 40% by weight of an aromatic vinyl hydrocarbon, different from (a)-(d), or a mixture of such monomers, and(f) from 0 to 40% by weight of an additional ethylenically unsaturated monomer, different from (a)-(e), or a mixture of such monomers,and(B) at least one crosslinking agent.

Abstract: The invention relates to aqueous electrodeposition coating materials comprising cathodically depositable synthetic resins and further comprising a reaction product (A) and a polymerization initiator (B) which forms free radicals, wherein the cathodically depositable synthetic resin is different from the reaction product (A), and the reaction product (A) is prepared by reacting(a) a polyisocyanate or a mixture of polyisocyanates with(b) an organic compound which contains both at least one ethylenically unsaturated double bond and at least one active hydrogen atom per molecule, or a mixture of such organic compounds, and(c) an organic compound which contains both at least one active hydrogen atom and at least one tertiary amino group and/or at least one ketimine and/or at least one aldimine group per molecule, or a mixture of such organic compounds, and if desired(d) an organic compound which is different from (b) and (c) and contains at least one active hydrogen atom per molecule, or a mixture of such organic

Abstract: The present invention relates to a process for the production of textured coatings on plastics surfaces using coating compositions based on hydroxyl group-containing binders and polyisocyanates, and using pulverulent texturing agents.