Basf Coatings Ag

Basf Lacke+farben Ag

Basf Coatings Gmbh

Georg Wigger

Ulrike R&ouml;ckrath

Peter Betz

Fritz Bartol

Marita Schilling

Ulrich Poth

Hubert Baumgart

Ralf Stein

B&auml;rbel Wiatr

Stephan Schwarte

Matthijs Groenewolt

Fatmir Raka

Dietmar Chmielewski

Igor Millbaier

Hans-J&uuml;rgen Figge

Hans-J&uuml;nrgen Figge

Thomas Kepler

Tilo Kühs

Angelika Bartelt

Daniel Briesenick

Yevgen Zhmayev

Kai Schaefer

Jan Christopher Holzapfel

Harry Libutzki

Nico Reichert

Described herein is a device for monitoring and drying and/or curing process of a coating composition applied at least partially onto at least one surface of a substrate, the device including a movable skid that includes at least one substrate holding unit, at least one lamp, at least one pattern holder including a pattern, and at least one camera, where the substrate holding unit, lamp and pattern holder are positioned on the skid relative to each other such that the light of the lamp can illuminate the pattern of the pattern holder, and the illumination can be projected onto the surface of the substrate, which is held by the substrate holding unit, and where the camera is positioned on the skid relative to the substrate holding unit holding the substrate, such that the camera is capable of recording images of the light reflected off the surface of the substrate.

Device and method for monitoring the drying/curing process of coatings

Disclosed herein is a method for assessing a shape of a bell-shaped liquid spray, including the steps of operating a spray nozzle for delivering a bell-shaped liquid spray and capturing an image of a plurality of liquid jets forming the delivered bell-shaped liquid spray during operation of the spray nozzle, and a computer program product for assessing a bell-shaped liquid spray.

Method for assessing a shape of a bell-shaped liquid spray

Disclosed are nonaqueous coating material compositions comprising (A) at least one polyhydroxyl-group-containing compound, (B) at least one polyisocyanate-group-containing compound having free or blocked isocyanate groups, and (D) at least one catalyst for the crosslinking of silane groups, where component (B) comprises at least one structural unit&#x2014;NR&#x2014;(X&#x2014;SiR&#x2033;(OR')3&#x2212;)&#x2003;&#x2003;(I),

Coating material compositions, coatings made therefrom and exhibiting high scratch resistance and good polishability, and use thereof

Aqueous coating material comprising (A) water-dispersible hydroxy-functional binder component containing urethane groups, (B) water-dispersible binder component containing urethane groups and blocked isocyanate groups, (C) water-dispersible amino resin, and optionally (D) water-dispersible hydroxy-functional polyester, the binder component (B) being preparable by (B1) preparing a polyurethane prepolymer containing isocyanate groups from at least one polyol and at least one polyisocyanate, (B2) reacting the polyurethane prepolymer (B1) containing isocyanate groups with a chain extender to give a hydroxyl-containing chain-extended polyurethane prepolymer, (B3) reacting the hydroxyl-containing chain-extended polyurethane prepolymer (B2) with at least one polyisocyanate to give a further polyurethane prepolymer containing isocyanate groups, and (B4) blocking some or all of the isocyanate groups of the chain-extended polyurethane prepolymer (B3) containing isocyanate groups with a blocking agent to give a polyurethane containing blocked isocyanate groups, and then, where appropriate, (B5) reacting remaining free isocyanate groups in the polyurethane (B4) with a chain extender.

Aqueous coating material, especially aqueous filler or protective base against stones

The invention relates to a coating composition comprising at least one OH-functional binder component and at least one component compound, functioning as a crosslinking agent, which has NCO groups blocked with a pyrazole compound. It is characterized in that the component compound which functions as a crosslinking agent is obtainable by a) polymerizing a polyol or a mixture of polyols having a number-average molecular weight in the range from 300-5000 by adding a polyisocyanate compound A or a mixture of polyisocyanate compounds A to give a polyurethane prepolymer, b) chain-extending the polyurethane prepolymer by adding a chain extender compound, to give a polyurethane polymer having free OH groups, c) reacting the OH-containing polyurethane polymer from b) with a polyisocyanate B or a mixture of polyisocyanates B to give a polyisocyanate-polyurethane polymer, and d) free isocyanate groups of the polyisocyanate-polyurethane polymer having been blocked with the pyrazole compound or a mixture of pyrazole compounds.

Coating composition

A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which after curing have a storage modulus E&prime; in the rubber-elastic range of at least 10 Pa and a loss factor tan &dgr; at 20&deg; C. of at least 0.05, the storage modulus E&prime; and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40&plusmn;10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.

Method for producing scratch resistant coatings, especially for producing multi-layer enamels

A process for producing scratch-resistant coatings, especially scratch-resistant multicoat finishes, involving use of coating compositions which, after curing, have a storage modulus E&prime; in the rubber-elastic range of at least 10 Pa and a loss factor tan&dgr; at 20&deg; C. of at least 0.05, the storage modulus E&prime; and the loss factor having been measured by dynamic mechanical thermoanalysis on free films having a film thickness of 40&plusmn;10 &mgr;m, and comprise as binders one or more polyacrylate resins having a hydroxyl number of from 100 to 240, an acid number of from 0 to 35, and a number-average molecular weight of from 1500 to 10,000, and as crosslinkers one or more free or blocked isocyanates and/or triazine-based components which crosslink with the hydroxyl groups of the binder to form ether and/or ester structures.

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Senden, Germany

Georg Wigger