Degussa Aktiengesellschaft

Evonik Degussa Gmbh

Huels Aktiengesellschaft

Other

Degussa-huels Aktiengesellschaft

Huels Aktiengesllschaft

Andreas Wenning

Emmanouil Spyrou

Giselher Franzmann

Patrick Glöckner

Peter Denkinger

Holger Loesch

Felix Schmitt

Rainer Lomoelder

Michael Ewald

Thomas Weihrauch

Werner Grenda

Werner Andrejewski

Peter Speier

Friedrich Plogmann

Erika Retzlaff

Jörn Volker Weiss

Dietmar Loest

The invention relates to new compositions having good binder, wetting, and dispersing properties for virtually foam-free aqueous and also solventborne and solvent-free pigment preparations.

Compositions for producing universal pigment preparations

The invention relates to tin-free reaction products of hydroxyl-containing hydrogenated ketone resins, carbonyl-hydrogenated ketone-aldehyde resins, and carbonyl-hydrogenated and ring-hydrogenated ketone-aldehyde resins based on aromatic ketones and polyisocyanates, to a process for their preparation and to the use thereof, in particular as a main component, base component or additive component in coating materials, adhesives, inks, polishes, glazes, stains, pigment pastes, filling compounds, cosmetics articles, sealants and/or insulants.

Tin-free, high-melting reaction products of carbonyl-hydrogenated ketone aldehyde resins, hydrogenated ketone resins, and carbonyl-hydrogenated and core-hydrogenated ketone aldehyde resins based on aromatic ketones and polyisocynates

The invention relates to polymer compositions of carbonyl-hydrogenated ketone-aldehyde resins and polyisocyanates in reactive solvents, to a process for their preparation and to the use, particularly in radiation-curable coating materials and adhesives.

Polymer compositions of carbonyl-hydrated ketone-aldehyde resins and polyisocyanates in reactive solvents

The invention provides a radiation-curable adhesion-promoting composition comprising unsaturated amorphous polyesters and reactive diluents and a process for preparing it and also provides for the use of unsaturated amorphous polyesters in reactive diluents as adhesion-promoting additives.

Radiation curable composition consisting of unsaturated amorphous polyesters and reactive dilutant agents

A highly reactive polyurethane powder coating composition, which contains uretdione groups that are hardenable at low temperatures, contains A) at least one uretdione-containing powder coating hardener based on aliphatic, (cyclo)aliphatic or cycloaliphatic polyisocyanates and hydroxyl-containing compounds, the hardener having a melting point of from 40 to 130&#xb0; C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) at least one hydroxyl-containing polymer having a melting point of from 40 to 130&#xb0; C., and an OH number of between 20 and 200 mg KOH/g; C) 0.001-3% by weight of at least one tetraalkyl ammonium carboxylate catalyst, based on a total amount of components A) and B). Components A) and B) are present in a ratio so that for each hydroxyl group of component B) there is from 0.3 to 1 uretdione group of component A).

Solid polyurethane powder coating compositions containing uretdione groups that are hardenable at low temperatures

Polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds having uretdione groups, which cure at low baking temperatures, a process for preparing such compositions, and their use for producing plastics, especially polyurethane powder coatings, which crosslink at low baking temperatures to give high-gloss or matt, light-stable and weather-stable coating films.

High-reactivity polyurethane powder coating compositions based on epoxy-terminated polyaddition compounds containing uretdione groups

Light-stable and weather-stable coating films contain a powder coating composition, containing from 30 to 98.5% by mass of a binder containing at least one urethane (meth)acrylate having a melting point of from 40 to 130&#xb0; C.; from 1 to 20% by mass of at least one micronized wax; and from 0.5 to 50% by mass of at least one auxiliary and/or at least one additive, the composition being cross-linked by actinic radiation.

Powder coating compositions comprising urethane (meth)acrylates and micronized waxes and their use

A process for preparing ketone-formaldehyde resins, especially acetophenone- and cyclohexanone-formaldehyde resins, having a low water content and high thermal stability and yellowing resistance, and a process for their production and their use.

Preparation of ketone-formaldehyde resins

Polyurethane powder coating materials comprising polyureas, polyesters, and crosslinkers, which have less than 15 mol % succinic acid as the polycarboxylic acid component. Matt coatings and coated materials comprising or produced using such polyurethane powder coating materials.

Polyurethane powder coatings with a matt appearance

A radiation-curable powder coating compositions based on crystalline urethane acrylates, which crosslink to light-stable and weather-stable coating films.

Powder coating compositions comprising crystalline urethane acrylates and use thereof

Polyurethane powder coating compositions containing uretdione groups and curing at low temperatures are provided, along with processes for preparing such compositions, and their use as powder coatings, wherein the compositions generally contain: A) a uretdione-containing powder coating hardener derived from aliphatic, (cyclo)aliphatic, cycloaliphatic or aromatic polyisocyanates and hydroxyl-containing compounds, and having a melting point from 40 to 130&#xb0; C., a free NCO content of less than 5% by weight, and a uretdione content of 6-18% by weight; B) a hydroxyl-containing polymer having a melting point from 40 to 130&#xb0; C., and an OH number between 20 and 200 mg KOH/gram, and C) a catalyst of the formula [NRRRR][R], in which R-Rsimultaneously, or independently of one another, are alkyl, aryl, aralkyl, heteroaryl or alkoxyalkyl radicals, and each R-Ris aromatic, linear or branched, unbridged or bridged with other radicals, R-R.

Low-temperature-curable, solid polyurethane powder coating compositions containing uretdione groups

A radiation curable powder coating composition that contains a) a binder having at least one amorphous urethane acrylate having a glass transition temperature of at least 35&#xb0; C. and a melting point of from 50 to 120&#xb0; C.; and b) an auxiliary, can be crosslinked by radiation to produce a lightfast and weather-stable film.

Radiation curable powder coating compositions and their use

The present invention relates to new cross-linking agents and thermosetting paints, which lead to improved properties such as scratch resistance of cured thermosetting paints or exhibit good solubility.

Cross-linking agents and thermosetting paints

A polyaddition compound having uretdione and carboxyl groups, and having a melting range of between 40 and 200&#xb0; C., a free NCO group content of from 0 to 5% by weight and an NCO functionality of at least 1.5, and a number-average molar mass of between 1000 and 10,000, may be prepared by reacting at least one polyisocyanate containing uretdione groups, at least one hydroxycarboxylic or mercaptocarboxylic acid, and one or more of at least one monofunctional compound having a functional group which is reactive toward an isocyanate, at least one aliphatic and/or cycloaliphatic polyol, at least one polyol having functional groups, and at least one aliphatic and/or cycloaliphatic polyamine. Polyurethane plastics, especially polyurethane powder coating materials may be prepared from the polyaddition compound of the present invention.

Bifunctional polyaddition compounds as crosslinkers for polyurethane powder coatings

The use of pulverulent thermosetting coating compositions based on physical mixtures of individual isocyanato isocyanurates formed from aliphatic and (cyclo)aliphatic and/or cycloaliphatic diisocyanates and from polyesters containing hydroxyl groups and terephthalic acid for coil powder coating materials, to a process for producing such coatings, and to the metal coils coated with such coating materials.

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Nottuln, Germany

Andreas Wenning