Abstract: Method for forming paint films by the 2-coats/1-bake method, using a clearcoat paint in which the resin component comprises (a) a copolymer of a vinyl monomer mixture containing at least 20 wt % (meth)acrylic acid cycloalkyl esters 40-90 wt %, (b) alkyl-etherified melamine resin 5-50 wt %, and (c) blocked polyisocyanate 5-50 wt %, and a basecoat paint in which the resin component comprises (d) a copolymer of a vinyl monomer mixture containing at least 10% of monomers represented by the general formula ##STR1## (X.sup.1 -X.sup.5 are H or a methyl group, i is 0-2, j is 0 or 1, k is 0-3, m is 0-3, and n is 1-10), 40-80 wt %, (e) alkyl-etherified melamine resin 10-50 wt %, (f) blocked polyisocyanate 0-40 wt %, (g) cellulose type resin 0-20 wt %, and (h) organic crosslinked fine particles 0-30 wt %, and coatings obtained by the said method.

Abstract: The invention relates to a process for the production of two-coat finishes of the basecoat/clearcoat type, in which nonaqueous transparent topcoats are employed, which comprise(A) a synthetic resin containing hydroxyl groups or a mixture of synthetic resins containing hydroxyl groups,(B) an amino resin or a mixture of amino resins, and(C) a blocked polyisocyanate or a mixture of blocked polyisocyanates,in which component (C) comprises isocyanate groups blocked both with a blocking agent (I) and with a blocking agent (II), and the blocking agent (I) being a dialkyl malonate, the blocking agent (II) being a blocking agent which is different from (I) and contains active methylene groups or an oxime, and the ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) being between 1.0:1.0 and 9.0:1.0.

Abstract: The invention relates to a process for the production of a multicoat coating in which the aqueous topcoat composition contains a water-thinnable polyacrylate resin which has a hydroxyl value of 40 to 200, an acid value of 20 to 100 and a glass transition temperature (T.sub.G) of -40.degree. C. to +60.degree. C., and can be prepared by adding a mixture (I) of a (meth)acrylic acid ester, a copolymerizable hydroxyl-containing monomer and, if appropriate, a further ethylenically unsaturated monomer to an organic solvent and carrying out free-radical polymerization and adding, at the end of the addition of the mixture (I), a mixture of a monomer containing carboxyl groups and a monomer free from carboxyl groups and continuing the polymerization.

Abstract: The present invention relates to a thermoset powder coating composition and method of application. The coating includes a copolymer having a reactive functionality selected from the group consisting of epoxy, carboxy, and hydroxy functionalities and mixtures thereof, a suitable crosslinking agent capable of reaction with the reactive functionality on the copolymer, and an aliphatic or aromatic crystalline, hydroxyl containing compound having a melting point of between 30.degree. C. and 150.degree. C. and a flow control agent. The powder coating is a pigmented or clear coat powder composition applied over a primer layer.

Abstract: The invention relates to basecoats for the production of finishes of the basecoat/clearcoat type which comprise a water-thinnable polyacrylate resin which can be obtained by polymerizing, either successively or in part amounts, monomers containing carboxyl groups and monomers free from carboxyl groups in an organic solvent to form a polyacrylate resin which is neutralized, at least partially, and dispersed in water.

Abstract: The present invention is a composition comprising an optically variable pigment modified with a silane functional compound and a copolymer which is a polymeric backbone having a reactive functionality thereon to react with the silane functional compound. The invention also includes a process for treating the optically variable pigment, and a coating composition containing the treated optically variable pigment.

Abstract: A thermosetting powder coating composition resistant to overspray incompatibility defects that comprises solid particulates of a uniform mixture of (a) a polyester resin having an average of two or more carboxyl groups, (b) a first crosslinker that is reactive toward the carboxyl groups of the polyester resin, (c) from 1% to 20% of a reactive acrylic copolymer having a weight average molecular weight of from 10,000 to 40,000, and (d) a second crosslinker that is reactive toward the reactive functionality of the acrylic copolymer is described.

Abstract: A coating composition for a clearcoat in a multilayer coating system for metallic substrates is described, comprising:A) a resin with epoxy and hydroxy functionality;B) a resin with anhydride functionality;C) an aminoplast resin; andD) additives selected from the group consisting of solvents, catalysts, flow agents, hindered amine light stabilizers, ultraviolet absorbers.

Abstract: The present invention relates to an acrylate copolymer containing amino groups, carboxyl groups and, if appropriate, hydroxyl groups which is characterized in that it has been produced by preparing an acrylate copolymer containing amino groups and, if appropriate, carboxyl groups, by means ofA) free-radical solution polymerization, using azo initiators at temperatures from 80.degree. to 150.degree. C., ofa.sub.1) 1 to 20% by weight of vinylimidazole and/or dimethylaminopropylmethacrylamide,a.sub.2) 0 to 50% by weight of one or more monomers containing hydroxyl groups,a.sub.3) 0 to 50% by weight of one or more monomers containing carboxyl groups, anda.sub.4) 30 to 85% by weight of at least one further ethylenically unsaturated copolymerizable monomer,the total of the proportions by weight of the components a.sub.1 to a.sub.4 always being 100% by weight, and the proportions by weight of the components a.sub.2 and a.sub.

Abstract: A method of producing an article with a color-plus-clear composite coating is described. The method comprises the steps of applying a colored coating composition to a substrate, and applying a clear coating composition over the colored coating composition, wherein the clear coating composition is a curable coating composition comprising:(a) a first component comprising a polymer backbone having appended thereto at least one carbamate functional group, and(b) a second component comprising a compound having a plurality of functional groups that are reactive with said carbamate group.

Abstract: The present invention is directed to a beam-curable coating composition for coating glass surfaces, particularly, optical glass fibers. The resultant coatings show slight or no loss of adhesion after exposure to moisture. The coating composition includes ethylenically unsaturated polyurethane, ethylenically unsaturated monomer, photoinitiator and a silane compound. The silane compound is an azidosilane and is added to improve adhesion of the coating agents exposed to moisture. Optionally, aminoalkoxysilanes may also be included.

Abstract: The present invention relates to a method of producing dull surfaces, in which initially a first paint layer is applied in a first layer thickness and at least one second paint layer is then applied on top of the first paint layer, at least the paint layer applied last being provided with dulling agents and having a dry film layer thickness which is less than the average particle size of the dulling agent. The method is characterized in that the paint layers applied are cured by ionizing radiation.

Abstract: The invention relates to a cathodic electro-dipping process wherein the electro-dipping primer employed contains a crosslinking agent which can be obtained by reactinga) a diol and/or a triol or a mixture of diols and/or a mixture of triols,b) diphenylmethane 4,4'-diisocyanate the melting point of which has been depressed, by partial reaction with a monool and/or polyol or a mixture of monools and/or a mixture of polyols, so far that it is liquid at room temperature andc) a masking agent or a mixture of masking agentsto give a crosslinking agent which is free from isocyanate groups.

Abstract: The present invention relates to a process for the electrophoretic internal coating of metal containers for the storage of foodstuffs and beverages, the aqueous coating composition used containing 0.01 to 10% by weight, preferably 0.5 to 3% by weight, relative to the solids content of the coating composition, of wax changing into the molten state in the range from 60.degree. C. to 100.degree. C. The process is used in particular for the internal coating of 3-part and 2-part cans and drawn-and-ironed or otherwise deep-drawn cans.

Abstract: An electrodeposition coating composition is described comprising:(a) an aqueous dispersion of a water-dispersible, electrically-depositable resin, and(b) a water-soluble cellulose ether.

Abstract: The invention relates to paints which contain a compound of the general formula (I) or a mixture of compounds of the general formula (I), the general formula (I) being ##STR1## and n, m, X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and Y having the following meaning:- n stands for a number between 2 and 25, preferably for a number between 5 and 15- m stands for a number from 0 to 5- X and Y can be identical or different and stand for a functional group, for example a hydroxyl, amino, carboxyl or NCO group- R.sup.1 and R.sup.4 can be identical or different and stand for an alkylene radical, preferably for an alkylene radical having 1 to 6 carbon atoms, or for an arylene radical, preferably a phenylene radical- R.sup.2 and R.sup.3 can be identical or different and stand for an alkyl radical, preferably for an alkyl radical having 1 to 3 carbon atoms, or for an aryl radical, preferably for a phenyl radical- R.sup.5 stands for ##STR2## Z standing for X, Y or R.sup.2.

Abstract: The invention relates to a cathodic electro-dipping process wherein the electro-dipping primer employed contains a crosslinking agent which can be obtained by(I) reacting, in a first stage,(a) diphenylmethane diisocyanate and(b) a monoalcohol or a mixture of monoalcohols to give an intermediate product (A) containing isocyanate groups, and(II) reacting this intermediate product (A) in a second stage with(c) a polyol or a mixture of polyols to give an intermediate product (B) containing hydroxyl groups which(III) is reacted in a third stage either with(d) a cycloaliphatic, aliphatic or araliphatic polyisocyanate or a mixture of such polyisocyanates and(e) a monofunctional masking agent or a mixture of such masking agents or with(f) a partially-masked polyisocyanate prepared from (d) and (e)to give a crosslinking agent which is free from isocyanate groups.

Abstract: The invention relates to a process for the production of a multicoat coating in which an aqueous transparent topcoat composition containing a polyacrylate resin as binder is employed. The polyacrylate resin can be obtained by adding, either successively or alternately in part amounts, a mixture of a carboxyl-containing ethylenically unsaturated monomer (a1) and a monomer (a2) free from carboxyl groups and a mixture (b) consisting of (meth)acrylic acid esters which are free from carboxyl groups, of hydroxyl-containing ethylenically unsaturated monomers and, if appropriate, of other ethylenically unsaturated monomers to an organic solvent and carrying out a polymerization in the presence of a radical-forming initiator and, at the end of the polymerization, neutralizing the resultant polyacrylate resin and dispersing it in water. The type and amount of (a1), (a2) and (b) are chosen so that the polyacrylate resin has a hydroxyl value of 40 to 200, an acid value of 20 to 100 and a glass transition temperature (T.

Abstract: A compound is described that is useful for metal surface modification, particularly aluminum flake pigment surface modification. The compound is a nitro-substituted polymeric composition. The polymeric compound includes a pigment interactive nitro-containing substituent, a hydrophobic substituent and a terminal hydrophilic substituent. A method for surface modification of a metallic flake pigment with the compound and compositions containing the surface modified metallic flake pigment are also described.

Abstract: Novel coating compositions containing modified cellulose esters are disclosed. The modified cellulose esters contain acid functionality, permitting their dispersion in aqueous systems. The modified cellulose esters are particularly useful as rheology control agents in coatings which are applied as waterborne dispersions. The novel coating compositions are used to produce coated substrates with desirable appearance characteristics.