Herberts Gmbh

Herberts Gesellschaft MIT Beschrankter Haftung

Thomas Brock

Hermann Kerber

Klaus Bederke

Fritz Sadowski

Walter Schubert

Klaus Wandelmaier

Hans-Peter Patzschke

Helmut Loffler

Gerhard Bremer

Jurgen Dobert

Paul Rupieper

Erwin Wilczek

A process for preparing aqueous coating agents with adjustable optical effects by mixing at least two storage-stable pre-mixed aqueous modules (units) is described, in which

Process for preparing aqueous coating agents using modular systems

The description relates to physically drying water-based coating agents. They contain water, metallic pigments, optional other pigments, neutralizing agents, conventional additives, small proportions of solvents and a binder mixture consisting of

Water-based physically drying coating agents, manufacture and use thereof

Process for the multi-layer lacquer coating of substrates

A process is described for the production of a multicoat lacquer finish by application of a base coat layer of an aqueous coating agent to a substrate and subsequent application of a layer of a clear coat containing an organic solvent, that leads to coatings with excellent hardness and gloss. For this purpose, for the production of the base coat layer an aqueous coating agent is applied that contains, in addition to water, one or more pigments, and optionally one or more organic solvents, neutralizing agents and customary lacquer additives, as binder a combination of:

Process for multicoat lacquering

Improved aqueous binder dispersions including polyurethanes and water-based physically drying coating compositions containing these aqueous dispersions which are particularly suitable for plain and metallic colored base coats employed for automotive repair lacquer coatings.

Aqueous binder dispersion for physically drying coating compositions and

The application relates to a binder for water-based coating agents, containing a mixture of a carbonate-containing polyurethane prepared by reacting (A)(i) a polyisocyanate containing no hydrophilic groups, (ii) a high molecular weight organic polyhydroxyl compound containing hydrophilic groups and polyhydroxy carbonates, (iii) a lower molecular weight compound containing at least two isocyanate-reacting groups, and (iv) an ionic compound containing at least one isocyanate-reacting hydrogen atom, with (B)(i) one or more polyurethanes prepared by free radical polymerization of a polyurethane macromonomer, in the presence of (ii) an unsaturated monomer copolymerizable with (i).

Physically drying water-based coating agents and use thereof

A binding-agent composition for coating agents which can be cured at low temperature contains:

Binding-agent composition, coating agent containing said binding agent,

Previous two-component coatings with enamine components cured very slowly at low temperatures and led to yellowed products. A binder composition is prepared which cures rapidly at low temperatures and leads to non-yellowing products. It contains as CH-acid component a polymer with at least two enamine functions in the molecule, obtained by

Binder composition and its use in surface coatings

A binding-agent composition for solvent-based or aqueous coating agents can be cured at low temperature to produce coatings which are non-yellowing and resistant to solvents. The binding-agent composition contains binding-agent components based on polyethers, polyesters, polyether polyesters and/or (meth)acrylic copolymers with, in each case, at least one acryloyl group and at least one epoxide group in the molecule, whereby the acryloyl groups and epoxide groups are present in the ratio 2:8 to 8:2. Also included are several polyamines as curing agents in a proportion of equivalent weights ranging from 2:0.5 to 1:1.5. The binding agents are used in pigmented and pigment-free lacquers, for use particularly in multi-layer lacquering.

Binding-agent composition, its production, coating agent containing said

The description relates to a physically drying water-based coating agent. It contains water, pigments, neutralizing agents, conventional additives, small proportions of solvents and a binder mixture consisting of

A pigment dispersion and its use for the preparation of coating compounds are described. The dispersion contains a pigment, solvent and pigment dispersing agent. The pigment dispersing agent is a copolymer containing OH groups, obtainable by the reaction of:

Growing community of inventors

Hurth, Germany

Thomas Brock