Basf Lacke+farben Ag

Bostik, Inc.

Bodo Muller

Gerhard Piestert

Willy Vesper

Rudolf Renz

Hans-Dieter Hille

Klaus Weidemeier

Winfried Schmidt

Roland Treutlein

Peter Mayenfelds

Eric Martin

The invention relates to a process for increasing the proportion of components which are non-volatile under processing conditions, in basecoat compositions containing predominantly organic diluents or solvents, for the production of multicoat finishes, preferably metallic finishes. In the process according to the invention, up to 10% by weight of the components which are volatile under processing conditions, are replaced by an aliphatic polyether or by mixtures of aliphatic polyethers, the aliphatic polyethers having a mean molecular weight of not less than 300, containing not less than one hydroxyl group per molecule and being liquid under normal conditions.

Process for using non-volatile components under processing conditions for basecoat compositions containing predominantly organic solvents

Process for increasing the proportion of components which are

The invention relates to a process for the production of a multicoat coating of the basecoat/clearcoat type using a water-dilutable basecoat composition. The process comprises a basecoat composition which contains 0.1 to 4.0% by weight, based on the binder solids, of xanthan gum and 5 to 80% by weight, based on the binder solids, of crosslinked polymeric microparticles prepared from polyester polyols and polyisocyanates.

Process for the production of a multicoat protective and/or decorative

Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the watering a delayed manner after components (A) and (B) have been mixed.

Two component polyurethane sealant

Water-thinnable baking paints and use thereof as filler material and

Aqueous sheet silicate dispersions, use of these dispersions as coating

Two-component polyurethane sealants, in particular for the direct glazing of motor vehicles, comprising (A) a pasty polyurethane component containing a polyurethane prepolymer having free isocyanate groups, and a curing agent, and (B) a pasty water-containing component, component (A) containing a blocked curing agent which can be liberated by water, and component (B) containing the water, reversibly bonded to a carrier substance which liberates the water in a delayed manner after components (A) and (B) have been mixed.

The invention relates to water-dilutable coating compositions which contain a binder, an aluminum pigment and an aqueous diluent. The water-dilutable coating compositions according to the invention are distinguished in that they contain, as the aluminum pigment, a pigment which has been obtained by passivating a lubricant-containing aluminum pigment in an aqueous passivating solution which contains chromic acid and a water-soluble glycol ether of the general formula R.sup.1 --(--O--CHR.sup.2 --CH.sub.2 --).sub.n --OH (R.sup.1 represents a lower alkyl radical, R.sup.2 represents either an H atom or a lower alkyl radical, preferably a --CH.sub.3 group, and n represents a number from 1 to 5) and/or a water-soluble glycol of the general formula HO--(CHR.sup.3 --CH.sub.2 --O--).sub.n H (R.sup.3 represents either an H atom or a lower alkyl radical, preferably a --CH.sub.3 group, and n represents a number from 1 to 5), at not less than 50.degree. C., preferably 60.degree. to 90.degree. C., particularly preferably about 80.degree. C.

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Wurzburg, Germany

Bodo Muller