Basf Coatings Gmbh

Norbert Loew

Andreas Poppe

Wei Hu

Cathrin Corten

Britta Schnieders

Bernhard Steinmetz

Peggy Jankowski

Thomas Farwick

Dominik Stoll

Carmen Kunszt

Bjoern Feldmann

Klaus Eikelmann

Katrin Deller

Disclosed herein is an aqueous coating composition including an anionically stabilized binder, a color pigment, a polycarboxylic acid, and optionally a solvent. Further disclosed is a method for producing an aqueous coating composition by adding a solution of polycarboxylic acid in a solvent to a coating composition including an anionically stabilized binder and color pigment. Additionally disclosed is a method for producing a multicoat paint system by producing a basecoat layer or at least two directly consecutive basecoat layers directly on a substrate optionally coated with a first coating layer, producing a clearcoat layer directly on the basecoat layer or the topmost basecoat layer, and jointly curing the basecoat layer(s) and the clearcoat layer. At least one of the basecoat materials includes the aqueous coating composition disclosed herein and/or an aqueous coating prepared by the disclosed method. A multicoat paint system obtainable by the method is additionally disclosed.

Aqueous polycarboxylic acid containing coating composition with improved leveling properties

An aqueous basecoat material with improved circulation line stability is disclosed. The aqueous basecoat material includes at least one hydroxyl-functional polymer as a binder component and at least one binder component which is different from the hydroxyl-functional polymer. The aqueous basecoat material also includes at least one carbonyl group-containing polyurethane poly(meth)acrylate and also at least one organic compound having at least two hydrazine, hydrazide and/or hydrazone groups. The aqueous basecoat material also includes at least one branched and/or secondary aliphatic monoalcohol having at least four carbon atoms.

Aqueous base coats having an improved ring line stability

The present invention relates to a copolymer (A) having a glass transition temperature Tof at least &#x2212;30&#xb0; C. obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and in the presence of at least one initiator, where the mixture of monomers (a) to be polymerized comprises 

Copolymer and pigmented coating agent containing the copolymer

The present invention relates to a solventborne, pigmented coating composition, which comprises, based on the total amount of the coating composition, 0.02 to 0.75 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent and the copolymer (A) possesses a glass transition temperature Tof at least &#x2212;30&#xb0; C.

Pigmented coating agent and coatings produced therefrom

The present invention relates to a solventborne, pigmented coating composition having a solids fraction of at least 35%, which comprises, based on the total amount of the coating composition, 0.1 to 1.5 wt % of at least one copolymer (A), where the copolymer (A) is obtainable by copolymerization of a mixture of olefinically unsaturated monomers (a) in at least one organic solvent, the mixture of monomers (a) to be polymerized consists of where

The present invention relates to a solvent-based, pigmented coating composition having a solids content of at least 35%, comprising where R=CHwith n=1 to 3; R=H or CHwith m=1 to 4; a=0 to 20; b=0 to 20; and a+b=2 to 40. The present invention further relates to a process for producing a multicoat coating system, using the coating composition, and to the use of the multicoat coating system for adhesively bonding glazing sheets.

Growing community of inventors

Neustadt a.d. Aisch, Germany

Norbert Loew