The present invention relates to a composition comprising an amphoteric polymer having pendant acid groups, or salts thereof, and pendant mono- or dialkylamino ethylene oxide groups or alkylammonium ethylene oxide groups characterized by either of the following formulas: ##STR00001##
where R.sup.1-R.sup.3 and X.sup. are as defined herein. The composition of the present invention improves hiding efficiency for coating compositions formulated using associative rheology modifiers, binders, and titanium dioxide.

The present invention relates to an aqueous coating composition comprising at least one mixture (M) of at least one polymeric resin (P1) and at least one polymeric resin (P2), different therefrom, where (P1) is a polyamide and (P2) is a polyester which is at least obtainable by reaction of at least one polymerized aliphatic C.sub.12-C.sub.24-monocarboxylic acid with at least one diol and/or polyol, at least one binder (A) comprising at least one polymeric resin (A1), which is different from the polymeric resins (P1) and (P2), at least one pigment (B), where the polyamide used as polymeric resin (P1) has an acid number <10 mg of KOH per g of polyamide and the mixture (M) is obtainable by dispersing of the polymeric resin (P1) in water or an aqueous medium in the presence of the polymeric resin (P2), to a method for at least partly coating a substrate with a basecoat film by means of the aqueous coating composition, and to a use of the mixture (M) as a rheological assistant in aqueous coating compositions.

The present invention relates to an aqueous coating composition comprising at least one mixture (M) of at least one polymeric resin (P1) and at least one polymeric resin (P2), different therefrom, where (P1) is a polyamide and (P2) is a polyester which is at least obtainable by reaction of at least one polymerized aliphatic C.sub.12-C.sub.24-monocarboxylic acid with at least one diol and/or polyol, at least one binder (A) comprising at least one polymeric resin (A1), which is different from the polymeric resins (P1) and (P2), at least one pigment (B), where the polyamide used as polymeric resin (P1) has an acid number <10 mg of KOH per g of polyamide and the mixture (M) is obtainable by dispersing of the polymeric resin (P1) in water or an aqueous medium in the presence of the polymeric resin (P2), to a method for at least partly coating a substrate with a basecoat film by means of the aqueous coating composition, and to a use of the mixture (M) as a rheological assistant in aqueous coating compositions.

The present invention relates to an aqueous dispersion (P) comprising at least one polymeric resin (P1) and at least one polymeric resin (P2) different therefrom, where the polymeric resin (P1) is a polyamide and the polymeric resin (P2) is a polyester which is at least obtainable by reaction of at least one polymerized aliphatic C.sub.12-C.sub.24 monocarboxylic acid with at least one diol and/or polyol, (P) being obtainable by dispersing of (P1) in water or an aqueous medium in the presence of (P2), and where (P1) has an acid number <10 mg of KOH per g of polyamide, and (P) contains at most 25 wt %, based on the total weight of (P), of one or more organic solvents, and also to an aqueous coating composition comprising (P), at least one binder (A) comprising at least one polymeric resin (A1), which is different from the polymeric resins (P1) and (P2), and at least one pigment (B) for at least partly coating a substrate with a basecoat film.

The present invention relates to an aqueous dispersion (P) comprising at least one polymeric resin (P1) and at least one polymeric resin (P2) different therefrom, where the polymeric resin (P1) is a polyamide and the polymeric resin (P2) is a polyester which is at least obtainable by reaction of at least one polymerized aliphatic C.sub.12-C.sub.24 monocarboxylic acid with at least one diol and/or polyol, (P) being obtainable by dispersing of (P1) in water or an aqueous medium in the presence of (P2), and where (P1) has an acid number <10 mg of KOH per g of polyamide, and (P) contains at most 25 wt %, based on the total weight of (P), of one or more organic solvents, and also to an aqueous coating composition comprising (P), at least one binder (A) comprising at least one polymeric resin (A1), which is different from the polymeric resins (P1) and (P2), and at least one pigment (B) for at least partly coating a substrate with a basecoat film.

A curable film-forming composition is provided, comprising: (a) an acrylic polyol prepared from a monomer mixture comprising a hydroxyl functional monomer, wherein the hydroxyl functional monomer comprises a hydroxyalkyl group with an alkyl chain of at least four carbon atoms; (b) a rheology modifier comprising: (1) a non-aqueous dispersion of an internally crosslinked organic polymer; and (2) a reaction product of an amine and an isocyanate; and (c) a curing agent comprising functional groups that are reactive with hydroxyl functional groups. Also provided are a multi-component composite coating that includes the curable film-forming composition described above and methods for forming a composite coating on a substrate.

A viscosity regulating composition and its method of manufacture. The composition comprises a mixture of (a) a branched polymer having the formula [M]-[(A.sup.1O)-L.sup.1-(A.sup.1O)R.sup.1].sub.n, wherein M is polybranched hydrophobe; A.sup.1O is a polyoxyalkylene unit; L.sup.1 is an aliphatic linking segment or an aromatic linking segment each having at least two hydroxyl reactive linking groups; and R.sup.1 is an aliphatic end unit or aromatic end unit having 6 to 32 carbon atoms; n ranges from 3 to 6; and (b) a polymer having the formula R.sup.2-(A.sup.2O)-L.sup.2-(A.sup.2O)R.sup.2, wherein (A.sup.2O) is a polyoxyalkylene unit, L.sup.2 is a aliphatic linking segment or an aromatic linking segment, and R.sup.2 is a aliphatic unit or an aromatic unit each having 6 to 32 carbon atoms.

A viscosity regulating composition and its method of manufacture. The composition comprises a mixture of (a) a branched polymer having the formula [M]-[(A.sup.1O)-L.sup.1-(A.sup.1O)R.sup.1].sub.n, wherein M is polybranched hydrophobe; A.sup.1O is a polyoxyalkylene unit; L.sup.1 is an aliphatic linking segment or an aromatic linking segment each having at least two hydroxyl reactive linking groups; and R.sup.1 is an aliphatic end unit or aromatic end unit having 6 to 32 carbon atoms; n ranges from 3 to 6; and (b) a polymer having the formula R.sup.2-(A.sup.2O)-L.sup.2-(A.sup.2O)R.sup.2, wherein (A.sup.2O) is a polyoxyalkylene unit, L.sup.2 is a aliphatic linking segment or an aromatic linking segment, and R.sup.2 is a aliphatic unit or an aromatic unit each having 6 to 32 carbon atoms.

Disclosed herein are compositions including a dispersion of solid particles of a substantially insoluble copper compound, and an organic biocide, wherein at least 20% of all particles of the composition have a particle size greater than 25 microns. Also disclosed herein are methods of making and using the same.

Disclosed herein are compositions including a dispersion of solid particles of a substantially insoluble copper compound, and an organic biocide, wherein at least 20% of all particles of the composition have a particle size greater than 25 microns. Also disclosed herein are methods of making and using the same.