Herberts Gesellschaft MIT Beschrankter Haftung

Herberts Gmbh

E.i. Dupont De Nemours and Company

Gerhard Bremer

Werner Stephan

Hermann Kerber

Fritz Sadowski

Heinz Dietholf Becker

Klaus Bederke

Olaf Ley

Manfred Krumme

Walter Schubert

Jorg Wabbels

Carmen Flosbach

Thomas Brock

Herrmann Kerber

Birgit Precht

Hans-Juergen Gawin

Heinz-Dietholf Becker

The invention relates to coating compositions comprising: A) at least one low molecular weight reactive compound with a molecular weight (Mn) of 300&#x2013;1,500 g/mol, preferably of 300&#x2013;1,200 g/mol, with at least one secondary and/or tertiary amino group and at least two hydroxyl groups per molecule, which compound is obtained by reacting A1) at least one hydroxyalkyl ester of an olefinically unsaturated carboxylic acid with 2&#x2013;12 C atoms in the hydroxyalkyl residue with A2) at least one lactone and with A3) at least one hydroxy-functional alkyl-, cycloalkyl- and/or alkoxyamine with at least one primary and/or secondary amino group per molecule and with 2&#x2013;10 C atoms per molecule, B) at least one cross-linking agent with functional groups reactive towards active hydrogen and optionally, C) at least one binder with functional groups containing active hydrogen.

High solid coating compositions

This invention relates to copolymers which contain hydroxyl groups and which are based on vinyl esters of monocarboxylic acids, wherein the copolymers which contain hydroxyl groups have an OH number of 110-170 mg KOH/g, an acid number of 5-35 mg KOH/g and a number average molecular weight M.sub.n of 1500-8000 g/mole and are obtainable by the polymerisation of A) 5-20% by weight of one or more vinyl esters of saturated monocarboxylic acids, B) 10-30% by weight of one or more aromatic vinyl hydrocarbons, C) 41-55% by weight of hydroxy-functional, polymerisable, unsaturated monomers, and D) 0-40% by weight of further polymerisable, unsaturated monomers, wherein component C) contains C1) 40-70% by weight of one or more hydroxyalkyl esters of .alpha.,.beta.-unsaturated monocarboxylic acids, C2) 1-10% by weight of one or more lactones, and C3) 30-55% by weight of one or more reaction products of an .alpha.,.beta.-unsaturated monocarboxylic acid with a glycidyl ester of a saturated .alpha.,.alpha.-dialkylalkane-monocarboxylic acid or of a saturated .alpha.-alkylalkane-monocarboxylic acid, and the sum of components A) to D) and the sum of components C1) to C3) add up to 100% by weight in each case.

Copolymers which contain hydroxyl groups and a method of producing them

This invention relates to coating media based on one or more styrene-free, unsaturated polyester resins, which contain

Coating medium, a method of producing multi-layer coatings and the use

This invention relates to two-component, solvent-thinnable coating media based on a polyisocyanate component and a component which reacts with isocyanate. The coating media contain one or more hydroxy-functional copolymers, one or more secondary polyamines containing ester groups, one or more aliphatic and/or cycloaliphatic polyisocyanates containing allophanate groups, extenders and/or pigments and optionally one or more organic solvents and customary lacquer additives. 60 to 75% by weight of aluminium hydroxide and calcium magnesium carbonate are contained in total, with respect to the total amount of extenders and/or pigments.

Coating media and a process for producing multi-layer coatings

Coating agents are described, that are suitable for the production of pigmented or transparent top coatings, based on hydroxy-functional (meth)acrylic copolymers, aliphatic and/or cycloaliphatic polyisocyanates, solvents, and customary lacquer additives and pigments. They are free from epoxy resins and nitrocellulose and contain as binder

Coating agents and their use in particular in the production of

The description relates to coating agents for use as primers and fillers in the manufacture of multilayer lacquer coatings, more particularly in the motor-vehicle sector. The coating agent contains a binder mixture of

Coating agents and use thereof as primers and/or fillers in the

A coating medium suitable for multilayer coatings, containing A) copolymers containing hydroxyl groups, comprising

Coating medium, the use thereof, and a process for multilayer coating

A binder composition for coating agents contains

.beta.-keto-ester-esterified polyol with polymerized monomers

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 binder composition suitable for coating agents is described, that contains one or more unsaturated polyesters with an acid number of 5-60 mg KOH/g, a hydroxyl number of 50-200 mg KOH/g and a weight-average molecular weight (Mw) of 500-3000 g/mol, that are obtainable by reaction of

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Frechen, Germany

Gerhard Bremer