Basf Coatings Gmbh

Alexandra Steffens

Josef Rademacher

Peter Hoffmann

Bernhard Lettmann

Matthijs Groenewolt

Cathrin Corten

Fatmir Raka

Britta Schnieders

Nicole Freitag

Markus Saedler

Audrée Andersen

Frederik Fölling

Timothy S December

Werner-Alfons Jung

Egbert Nienhaus

Manuela Niemeier

Wilfried Stübbe

Norbert Löw

Jorn Lavalaye

Markus Hickl

Audree Andersen

Stefanie Boshe-Plois

John G Partyka

Wilma Nimz

Sibylle Schöps

Rafael Bautista Mester

Wilfred Stübbe

Werner Alfons Jung

Described herein is a mixer system for producing aqueous coating materials from at least one aqueous pigment paste A, including at least one color pigment, and at least one pigment-free component B, including an aqueous, acrylate-based microgel dispersion having a glass transition temperature Tof 50 to 60° C., where both the aqueous pigment paste A and the component B each have a VOC value of less than or equal to 250 g/L. Further described herein is a method for producing aqueous coating materials having a VOC content of 0 to 250 g/L, in which the individual components A and B are stored separately and not mixed until shortly before application, to give the aqueous coating material. Further described herein is a method of using the mixer system for producing aqueous coating materials for refinishing and/or for coating automobile bodies and/or plastics parts.

Mixing system for producing aqueous coating agents with a low VOC

Described herein is a mixer system for producing aqueous coating materials from at least one aqueous pigment paste A, including at least one effect pigment, and at least one pigment-free component B, including an aqueous, acrylate-based microgel dispersion having a glass transition temperature Tof 50 to 60° C., where both the aqueous pigment paste A and the component B each have a VOC value of less than or equal to 250 g/L. Further described herein is a method for producing aqueous coating materials having a VOC content of 0 to 250 g/L, in which the individual components A and B are stored separately and not mixed until shortly before application, to give the aqueous coating material. Further described herein is a method of using the mixer system of for producing aqueous coating materials for refinishing and/or for coating automobile bodies and/or plastics parts.

Mixer system for producing aqueous coating materials with low VOC

Solventborne filler comprises at least one alpha,omega-hydroxy-functionalized oligoester which possesses an OH number of 30 to 160 mg KOH/g, a theoretical carbon-carbon double bond content of 1 to 3 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, moreover, the sum of the weight percentage fractions of all the alpha,omega-hydroxy-functionalized oligoesters being 0.5 to 10 wt. %, based on the total amount of the solventborne filler. Also provided are a multicoat paint system, a process for producing a multicoat paint system, and use of the above-designated alpha,omega-hydroxy-functionalized oligoester in solventborne fillers for improving adhesion.

Alpha,Omega-hydroxy-functionalized oligoester as adhesion promoter in solventborne fillers

Pigmented aqueous basecoat material comprises at least one alpha, omega-hydroxy-functionalized oligoester having an OH number of 25 to 95 mg KOH/g, a theoretical carbon-carbon double bond content of 0.5 to 2.5 mmol/g, a number-average molecular weight of 2500 to 6000 g/mol and a weight-average molecular weight of 15 000 to 30 000 g/mol, the alpha, omega-hydroxy-functionalized oligoester further comprising at least one partially or completely salified acid group, and the sum of the weight percentage fractions of all the alpha, omega-hydroxy-functionalized oligoesters being 0.5 to 10 wt %, based on the total solids fraction of the pigmented aqueous basecoat material. Also provided are a multicoat paint system, a method of producing a multicoat paint system, and use of the above-identified alpha, omega-hydroxy-functionalized oligoester in pigmented aqueous basecoat materials for the purpose of improving adhesion.

Alpha,omega-hydroxy-functionalized oligoester as adhesion promoter in aqueous basecoats

Disclosed are aqueous coating compositions comprising at least one hydroxyl-containing compound (A), at least one compound (B) having isocyanate groups and also having hydrolyzable silane groups, and at least one catalyst (C) wherein the compound (B) has 10 mol % to less than 90 mol % of at least one structural unit (I)&#x2014;N(X&#x2014;SiR&#x2033;(OR')3-)(X&#x2032;&#x2014;SiR&#x2033;(OR&#x2032;)3-)&#x2003;&#x2003;(I)Where R&#x2032;=hydrogen, alkyl or cycloalkyl, X, X&#x2032;=linear and/or branched alkylene or cycloalkylene radical having 1 to 20 carbon atoms, R&#x2033;=alkyl, cycloalkyl, aryl or aralkyl, n=0 to 2, m=0 to 2, m+n=2, and x, y=0 to 2, and more than 10 to 90 mol % of at least one structural unit (II) &#x2014;Z&#x2014;(X&#x2014;SiR&#x2033;x(OR&#x2032;)3-x) (II), where Z=&#x2014;NH&#x2014;, &#x2014;NR&#x2014;, &#x2014;O&#x2014; or &#x2014;S&#x2014;, where R=alkyl, cycloalkyl, aryl or aralkyl, and x, X, R&#x2032; and R&#x2033; have the definition indicated for formula (I).

Aqueous polyurethane coating material and coatings produced therefrom and having high scratch resistance and good chemicals resistance

Multilayer coating, production and use thereof for the adhesion of glass panes

An UV- and thermally curable, solventborne clearcoat material suitable for automotive refinishing comprises: Component (A) may be an intermediate in the production of the clearcoat material.

UV- and thermally curing clearcoat composition for automotive refinishing

Described is a high solids coating composition having exceptional rheological properties and appearances comprising (a) a thermosetting binder, (b) from about 0.1 to about 10 wt. % based on binder solids of solid polyurea particles prepared by the reaction of a mixture of a polyisocyanate and an amino reactant comprising a primary or secondary monoamine that optionally has a hydroxyl or ether group or both, and (c) from about 5 to about 20 wt. % based on binder solids of a cellulose mixed ester having a number average molecular weight of from about 1000 to about 5600, a polydispersity of from about 1.2 to about 3.5, and a total degree of substitution per anhydroglucose unit of from about 3.08 to about 3.5.

High solids coating and process for coating

Disclosed is a coating composition based on aprotic solvents and comprising at least one hydroxyl-containing compound (A) and at least one compound (B) having isocyanate groups and having at least one silane group of the formula (I)&#x2014;X&#x2014;Si&#x2014;R&#x2033;G3-&#x2003;&#x2003;(I)with The present invention additionally provides multistage coating methods using these coating compositions, and the use of the coating compositions as clearcoat, and application of the coating method for automotive refinish and/or for the coating of plastics substrates.

Coating materials with high solids content and good levelling, multicoat paint systems produced therefrom and use thereof

Growing community of inventors

Münster, Germany

Alexandra Steffens