Basf Coatings Ag

Basf Coatings Gmbh

Ralf Nickolaus

Reinhold Clauss

Heinz-Peter Rink

Cathrin Corten

Maximilian Bendix

Dirk Eierhoff

Nicole Freitag

Wilma Löcken

Elisabeth Wessling

Dunja Mikolajetz

Wolfgang Bremser

Britta Schnieders

Joerg Schwarz

Heinz-Ulrich Grumpe

Stefanie Boshe-Plois

Patrick Wilm

Mechthild Vienenkoetter

Susanne Katharina Fechtner

Jörg Schwarz

Stephanie Boshe-Plois

Susanne-Katharina Kreth

The present invention relates to aqueous dispersions comprising multistage-prepared polymers of olefinically unsaturated compounds and to the preparation and use thereof, in particular in the field of automobile coating.

Aqueous dispersions containing polymerizates produced in multiple stages and coating agent compositions containing same

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-Cmonocarboxylic 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 &#x3c;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.

Aqueous dispersion of a polyester and a polyamide of low acid number and coating composition comprising same for applying a basecoat

An aqueous coating material, substantially or completely free from volatile organic compounds and preparable by mixing with one another (A) at least one aqueous primary dispersion comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core/shell particles with a diameter &#x2266;500 nm, preparable by free-radical microemulsion or miniemulsion polymerization of at least one olefinically unsaturated monomer in the presence of at least one hydrophobic additive, and (B) at least one secondary aqueous polyurethane dispersion comprising at least one polyurethane and at least one light stabilizer selected from the group of the regenerable free-radical scavengers, a process for preparing it and its use.

Aqueous coating substance that is substantially or completely free of volatile organic substances, method for producing the same and the use thereof

Aqueous primary dispersion, substantially or entirely free of volatile organic compounds, and comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core/shell particles with a particle diameter&#x2266;500 nm, preparable by free-radical micro- or miniemulsion polymerization of at least one olefinically unsaturated monomer in the presence of at least one hydrophobic additive and of at least one oligomeric polyester with a number-average molecular weight of from 150 to 1 500 daltons, a hydroxyl number of from 100 to 1 000 mg KOH/g, and an acid number&#x3c;20 mg KOH/g and also a process for preparing it and its use as a coating material, adhesive or sealing compound or to prepare a coating material, an adhesive or a sealing compound.

Aqueous primary dispersion, substantially or completely devoid of volatile organic substances, method for the production thereof and use of the same

Aqueous primary dispersions and coating materials comprising dispersed and/or emulsified, solid and/or liquid polymer particles and/or dispersed solid core shell particles having a diameter&#x2266;500 nm preparable by controlled free-radical microemulsion or miniemulsion polymerization of A) at least one olefinically unsaturated monomer and B) at least one olefinically unsaturated monomer which is different than the olefinically unsaturated monomer (A) and has the general formula I: RRC&#x2550;CRR(I), in which the radicals R, R, Rand Rindependently of one another are hydrogen atoms or substituted or unsubstituted alkyl, cycloalkyl, alkylcycloalkyl, cycloalkylalkyl, aryl, alkylaryl, cycloalkylaryl, arylalkyl or arylcycloalkyl radicals, with the proviso that at least two of the variables R, R, Rand Rare substituted or unsubstituted aryl, arylalkyl or arylcycloalkyl radicals, especially substituted or unsubstituted aryl radicals; and in the presence of (C) at least one hydrophobic cross-linking agent for the copolymer resulting from the starting products (A) and (B).

Aqueous primary dispersions and coating matters, a method for producing same and the use thereof

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Drensteinfurt, Germany

Ralf Nickolaus