Abstract: An aqueous coating composition is provided which includes crosslinkable film-forming resin and about 0.01 to about 25 weight percent on a basis of total resin solids of an amphiphilic adjuvant having an acid value of less than 30, a water-soluble polar end including at least one terminal hydroxyl group and a water-insoluble hydrocarbon end including at least seven contiguous carbon atoms. The coating composition is useful as a monocoat or primer, basecoat or clearcoat in a multi-component composite coating composition for automotive applications.

Abstract: An aqueous coating composition is provided which includes crosslinkable film-forming resin and about 0.01 to about 25 weight percent on a basis of total resin solids of an amphiphilic adjuvant having an acid value of less than 30, a water-soluble polar end including at least one terminal hydroxyl group and a water-insoluble hydrocarbon end including at least seven contiguous carbon atoms. The coating composition is useful as a monocoat or primer, basecoat or clearcoat in a multi-component composite coating composition for automotive applications.

Abstract: The invention relates to aqueous coating compositions comprising:an aqueous, polyester- and acrylate-based polymer dispersion obtainable by free-radical polymerization of at least:a. one (meth)acrylic acid ester;b. one ethylenically unsaturated, at least monofunctional acid; and optionallyc. one ethylenically unsaturated monomer other than (a) and (b)or mixtures thereof, with a poly ester resin capable of undergoing a free-radical polymerization;one amino resin as crosslinking agent,one water-soluble and/or water-emulsifiable polyalcohol and optionally conventional laquer additives.Furthermore, the invention relates to the use of these aqueous coating compositions as clear coats for the preparation of multi-layer coatings.

Abstract: A microgel obtained by polymerizing in aqueous phase a monomer blend comprising at least one ethylenic monofunctional compound, selected from the group consisting of vinylic compounds, alkyl esters of acrylic or methacrylic acid, hydroxyalkyl (meth)acrylates and vinyl acetate, and at least one ethylenic di- or multifunctional compound, selected from the group consisting of diacrylates, triacrylates and/or (meth)acrylates of polyfunctional alcohols, in the presence of a polycondensation product of a polycarboxylic acid, polyhydroxycarboxylic acid, hydroxypolycarboxylic acid and/or polyhydroxypolycarboxylic acid with a polyol, and its use for aqueous or solvent-containing coating compositions, in particular for aqueous or solvent-containing base coats, effect base coats or clear coat systems in the motorcar industry.

Abstract: The invention relates to an aqueous polyester- and acrylate-based polymer dispersion, obtainable by free radical-initiated polymerization of at least(a) one (meth)acrylic acid ester,(b) one ethylenically unsaturated, at least monofunctional acid, and optionally(c) one ethylenically unsaturated monomer other than (a) and (b),or mixtures thereof with a polyester resin capable of undergoing a free radical-initiated polymerization. The invention further relates to the production of these aqueous polymer dispersions, to aqueous clear coat compositions containing said dispersions, and to the use thereof.

Abstract: The invention relates to a basecoat/clearcoat process in which the basecoat composition used contains as a film former a polyurethane resin which can be prepared by preparing an intermediate from(A) a mixture obtained from 10 to 90 mol % of linear polyether diols and 90 to 10 mol % of polyester diols,(B) diisocyanates,(C) compounds which contain two groups reactive toward isocyanate groups, at least some of these compounds having at least one group capable of forming anions,and the free isocyanate groups of the said intermediate are then reacted with(D) polyols containing at least three hydroxyl groups, and the reaction product obtained in this manner is transferred into an aqueous base, whereina) the polyester diol is prepared from diols and an acid component which consists of 60 to 100% by weight of aliphatic dicarboxylic acids of more than 18 carbon atoms and of 40 to 0% by weight of aliphatic dicarboxylic acids of 2 to 18 carbon atoms,b) the equivalent ratio of the NCO groups to the total of the OH groups

Abstract: A coating composition comprises an alkyd resin based topcoat and a water dilutable coating comprising an epoxy resin-modified polyester binder which is water-dilutable upon base neutralization of the free carboxyl groups and is prepared by the reaction of (A) a polyester containing (cyclo)aliphatic groups having at least six carbon atoms derived from (a.sub.1) a polycarboxylic acid with at least three carboxyl groups and/or (a.sub.2) a polyol with at least one carboxyl group, (a.sub.3) a polycarboxylic acid with two carboxyl groups and (a.sub.4) a polyol; and (B) a bisphenol epoxide resin.

Abstract: The invention relates to aqueous dispersions of cross-linked polymer microparticles, prepared in an aqueous medium from a polymer, optionally dissolved in an organic solvent, said polymer bearing at least two hydroxyl groups and comprising a number of ionic groups sufficient for the formation of a stable aqueous dispersion, as the component (A) and one further component (B) at an elevated temperature, characterized in that component (A) is a polyesterpolyol, a polyurethane or a polyacrylate having an acid value of from 5 to 168, and that component (B) is an aminoplast resin consisting of molecules containing at least two reactive groups consisting of hydroxyl and/or amino and/or ether groups, that the ratio by weight of component (A) to component (B) is between 30:70 and 95:5, and that the dispersion is stable and usable in water and/or an organic solvent or mixtures thereof.

Abstract: A substrate is spray coated with a composition containing an epoxy resin-modified polyester binder which is water-dilutable upon base neutralization of the free carboxyl groups and is prepared via the reaction of A) a polyester containing (cyclo)aliphatic groups having at least six carbon atoms derived from (a.sub.1) a polycarboxylic acid with at least three carboxyl groups and/or (a.sub.2) a polyol with at least one carboxyl group, and (a.sub.3) a polycarboxylic acid with two carboxyl groups and (a.sub.4) a polyol; and (B) a bisphenol epoxy resin.

Abstract: The invention relates to a basecoat/clearcoat process in which the basecoat composition used contains as a film former a polyurethane resin which can be prepared by preparing an intermediate from(A) a mixture obtained from 10 to 90 mol % of linear polyether diols and 90 to 10 mol % of polyester diols,(B) diisocyanates,(C) compounds which contain two groups reactive toward isocyanate groups, at least some of these compounds having at least one group capable of forming anions, and the free isocyanate groups of the said intermediate are then reacted with(D) polyols containing at least three hydroxyl groups, and the reaction product obtained in this manner is transferred into an aqueous base, whereina) the polyester diol is prepared from diols and an acid component which consists of 60 to 100 % by weight of aliphatic dicarboxylic acids of more than 18 carbon atoms and of 40 to 0 % by weight of aliphatic dicarboxylic acids of 2 to 18 carbon atoms,b) the equivalent ratio of the NCO groups to the total of the OH gro

Abstract: A water-dilutable coating comprising a binder obtained from an epoxide resin-modified polyester possessing free carboxyl groups prepared from the reaction of:A) a polyester polymerized from:a.sub.1) a polycarboxylic acid containing at least three carboxyl groups and/ora.sub.2) a polyol containing at least one carboxyl group anda.sub.3) a polycarboxylic acid containing two carboxyl groups anda.sub.4) a polyol, wherein the polyester contains (cyclo)aliphatic elements having at least six carbon atoms;B) from 0.3-1.5 equivalents per polyester molecule of a bisphenol epoxide resin or a reaction product thereof containing at least one epoxide group per molecule with a carboxylic acid; andC) a crosslinking agent.

Abstract: The invention relates to water-thinnable baking paints, the use thereof as filler material and intermediate stone chip resistant coat as well as a process for painting motor vehicle bodies.The water-thinnable baking paints comprise as binders a combination of(I) 20 to 70% by weight of a water-thinnable polyurethane resin with an acid value of 15 to 35,(II) 20 to 70% by weight of an epoxy resin-modified water-thinnable polyester which can be prepared by reacting a polyester (A) with a molecular weight (number average) below 2000, an acid value of 35-240 and a hydroxyl value of 56-320, with 0.3 to 1.

Abstract: A water-dilutable coating comprising a binder obtained from an epoxide resin-modified polyester possessing free carboxyl groups prepared from the reaction of:A) a polyester polymerized from:a.sub.1) a polycarboxylic acid containing at least three carboxyl groups and/ora.sub.2) a polyol containing at least one carboxyl group anda.sub.3) a polycarboxylic acid containing two carboxyl groups anda.sub.4) a polyol; wherein the polyester contains (cyclo)aliphatic elements having at least six carbon atoms; andB) from 0.3-1.5 equivalents per polyester molecule of a bisphenol epoxide resin or a reaction product thereof containing at least one epoxide group per molecule with a carboxylic acid.

Abstract: The invention relates to coating compositions which are particularly suitable for the preparation of the basecoat for two-coat coatings of the basecoat/clearcoat type, and which comprise organic diluents, at least one resin containing urethane and urea groups, and, where appropriate, other resins, pigments and other conventional additives in common use.

Abstract: The invention relates to dispersions of crosslinked polymer micro-particles in aqueous media, which have been prepared:(1) (a) by dispersing a mixture of the components (A) and (B) in an aqueous medium, the component (A) being composed of one or more polyester-polyols containing at least 2 hydroxyl groups, and the component (B) being composed of one or more polyisocyanate compounds in which the isocyanate groups are at least partially in the masked form, and the components (A) and/or (B) having available a number of ionic groups, preferably carboxylate groups, sufficient to form a stable dispersion, and at least one part of the components (A) and/or (B) containing more than 2 hydroxyl or optionally masked isocyanate, respectively, groups per molecule and(2) (b) by subsequently heating the dispersion thus obtained to a temperature sufficiently high for the components (A) and (B) to react to form crosslinked polymer micro-particles.

Abstract: The invention relates to a process for the preparation of macromonomers which carry at least two hydroxyl groups at one end. The process comprises(1) reacting a polyester, polyether, polyurethane, polyurea or polyamide prepolymer which has a number average molecular weight of 300 to 3000, preferably 500 to 2000, and contains an average of one terminal hydroxyl or amino group and at least one carboxyl group per molecule with a diisocyanate to form an intermediate which contains an average of one terminal isocyanate group and at least one carboxyl group per molecule, and subsequently reacting this intermediate(2) with a compound which has a molecular weight of 90 to 800, preferably 120 to 300, and contains at least two hydroxyl groups in addition to a group which is reactive to isocyanate groups, to form a macromonomer which carries an average of at least one carboxyl group and, at one end, at least two hydroxyl groups per molecule.

Abstract: Dispersions of crosslinked polymer micro-particles in aqueous media, a process for the preparation of these dispersions, and coating compositions containing these dispersions.The invention relates to dispersions of crosslinked polymer micro-particles in aqueous media, which have been prepared:(1) by dispersing a mixture of the components (A) and (B) in an aqueous medium, the component (A) being composed of one or more polyester-polyols containing at least 2 hydroxyl groups, and the component (B) being composed of one or more polyisocyanate compounds, and the component (A) having available a number of ionic groups, preferably carboxylate groups, sufficient to form a stable dispersion, and at least one part of the components (A) and/or (B) containing more than 2 hydroxyl or isocyanate, respectively, groups per molecule and(2) by subsequently heating the dispersion thus obtained to a temperature sufficiently high for the components (A) and (B) to react to form crosslinked polymer micro-particles.

Abstract: Basecoating compositions for preparing multilayered protective and/or decorative coatings comprise aqueous dispersions which contain(a) as film-forming material one or more polyurethane resins having an acid number of from 5 to 70, which has been prepared by preparing from(A) liner polyetherdiols and/or polyesterdiols having a molecular weight of from 400 to 3,000(B) diisocyanates and(C) compounds which contain two groups which are reactive toward isocyanate groups, one or more of the compounds used as component C having one or more groups capable of anion formation which have preferably been neutralized before the reaction with a tertiary amine,an intermediate which as terminal isocyanate groups and whose free isocyanate groups have subsequently been reacted with a polyol which contains three or more hydroxyl groups, preferably a triol,(b) pigments and(c) further customary additives.

Abstract: The invention relates to binders for cathodically depositable coating compositions for the electrocoating lacquering process using cationic synthetic resins, which binders have been obtained by polymerizing (A) 5 to 95% by weight of ethylenically unsaturated polymerizable monomers in the presence of (B) 95 to 5% by weight of a cationic synthetic resin in an aqueous phase, the total amount of the components (A) and (B) being 100%.Esters of acrylic acid and/or methacrylic acid are preferable for use as component (A). The invention also relates to a process for preparing the binders and to their use for cathodically depositable electrocoating lacquers.

Abstract: The invention relates to a coating composition for the preparation of the base coat of a multilayer enamel consisting of at least one base and one transparent protective coat, the said coating composition containing binders based on organic resins, metallic pigments, organic solvents and, if appropriate, other pigments as well as customary additives and auxiliaries. The coating composition contains, as binders, (A) polyurethane elastomers and/or polyurea elastomers, (B) polyesters and (C) polycondensates partially etherified with monoalcohols and consisting of melamine, benzoguanamine and/or urea with formaldehyde. The invention further relates to a process for the preparation of coatings using the coating composition, and to a substrate coated with a multilayer enamel.