Basf Coatings Gmbh

Andreas Feigl

Christian Weiher

Peter Hoffmann

Cathrin Corten

Burkhard Walther

Manuela Niemeier

Fatmir Raka

Nicole Freitag

Norbert Steidl

Günter Klein

Guenter Klein

Audree Andersen

Stefanie Boshe-Plois

Ulrike Wenking

Fabian Niedermair

Christian Arens

Wilfried Stuebbe

Mareike Mathieu

Marlen Laerbusch

Marlene Laerbusch

A nonaqueous coating material composition and a coating produced from the coating material composition are provided. The coating material composition contains at least one polyhydroxyl group-containing component, at least one polyisocyanate group-containing component, at least one catalyst, and at least one urethane additive (PF) which has specific groups. The urethane additive (PF) is prepared by reacting 0.5 to 20 mol % of the isocyanate groups originally present in a polyisocyanate (PI) with a component (Ia) and 10 to 99.5 mol % of the isocyanate groups originally present in the polyisocyanate (PI) with a component (IIa). The component (Ia) contains at least one perfluoroalkyl group of a specific formula and one group reactive toward the isocyanate groups. The component (IIa) contains at least one silane group of a specific formula and one group reactive toward the isocyanate groups.

Nonaqueous coating material compositions, coatings produced therefrom and having improved adhesion and scratch resistance and also use thereof

The present invention relates to a solventborne clearcoat material which comprises at least one additive preparable by reacting at least one alpha,omega-hydroxy-functionalized oligoester which has an OH number of 30 to 160 mg KOH/g, a theoretical carbon-carbon double bond content of 1 to 2.5 mmol/g, a number-average molecular weight of 1000 to 3000 g/mol, and a weight-average molecular weight of 2800 to 10 000 g/mol, and at least one alkoxysilane which possesses an OH-reactive functional group, the sum of the weight percentage fractions of all additives of the invention being 0.5 to 10 wt %, based on the total amount of the solventborne clearcoat material. The present invention further relates to a process for producing multicoat paint systems, and to multicoat paint systems producible by means of said process. The invention further relates to the use of the above-identified additive in solventborne clearcoat materials for the purpose of improving adhesion.

Adhesion promoter for solventborne clearcoat materials

Nonaqueous coating material compositions comprising at least one polyhydroxyl and (per)fluoroalkyl group-containing poly(meth)acrylate component (A), at least one polyisocyanate group-containing compounds (B), and one or more catalysts (D). Also provided are multistage coating methods using the coating material compositions, and also the use of the coating material compositions as a clearcoat material and for coating of wind energy systems or aircraft, or parts thereof, more particularly as an anti-icing coating.

Fluorine-containing nonaqueous coating material composition, coating methods, and the use of the coating material composition

Growing community of inventors

Drensteinfurt, Germany

Andreas Feigl