Huels Aktiengesellschaft

Evonik Degussa Gmbh

Degussa Aktiengesellschaft

Kaneka Belgium N.v.

Creanova Spezialchemie Gmbh

Deguss-huels Aktiengesellschaft

Evonik Operations Gmbh

Rainer Lomoelder

Stephan Kohlstruk

Friedrich Plogmann

Michael Ewald

Peter Speier

Emmanouil Spyrou

Elmar Wolf

Markus Hallack

Felix Schmitt

Wilfried Paulen

Tobias Unkelhaeusser

Hans Goerlitzer

Ingo Bockhoff

Andreas Wenning

Martina Ortelt

Holger Loesch

Manfred Kreczinski

Gerd Loehden

Gerda Grund

Dirk Fuchsmann

Friedrich Georg Schmidt

Dirk Hoppe

Jan Hendrik Schattka

Britta Kohlstruk

Hans-Werner Michalczak

Wiebke Stache

Marita Kaufmann

Sabine Naumann

Tobias Unkelhäußer

Dirk Reichel

Andre Raukamp

Silvia Herda

Christoph Nacke

Winfried Belzner

Jansen Volker

Michael Wolff

Tobias UNKELHÄUSSER

Hans GÖRLITZER

The invention relates to a method for producing storage-stable polyurethane prepregs and molding bodies produced therefrom (composite components), which can be obtained by a method using a polyurethane composition in solution and by impregnation of fiber-reinforced materials such as of woven fabrics and laid scrim using reactive polyurethane compositions.

Process for the production of storage-stable polyurethane prepregs and mouldings produced therefrom from dissolved polyurethane composition

The present invention relates to a coating material comprising at least one aliphatic or cycloaliphatic polyisocyanate having an NCO functionality of at least 2, preferably 2.8 to 6, optionally at least one binder, preferably a hydroxyl-containing binder, at least one adduct of an isocyanatotrialkoxysilane and a polyhydric alcohol, with more than 90, more preferably more than 95, most preferably more than 99 percent of the hydroxyl groups in the polyhydric alcohol having been converted by reaction with the isocyanatotrialkoxysilane, and less than 0.1 wt % of the isocyanate groups from the isocyanatotrialkoxysilane being reactive in the adduct, at least one catalyst selected from the group consisting of Lewis acids, phosphoric acid or phosphorous acid and esters thereof, blocked or non-blocked sulphonic acids, sulphuric acid, carboxylic acids having a melting point &#x3e;60&#xb0; C. and tetraalkylammonium carboxylates, optionally at least one auxiliary, preferably at least one further crosslinker, and/or adjuvant, and optionally organic solvents, and also to a process comprising providing, applying to a surface and curing the coating material, to a coating obtainable by curing the coating material, and to use of the coating material for coating a metal, glass, plastic or wood surface.

Coating material with high scratch resistance

The present invention relates to a copolymer of the formula where A, B, and D are independently of one another an aliphatic (cyclo)alkylene radical, R is a C-Calkyl radical, and 3&#x2266;x&#x2266;10. The present invention also relates to a process for preparing the copolymer, to its use and also to a coating composition and a coating formulation containing the copolymer.

Copolymers of isocyanatoalkyltrialkoxysilanes and urethanediols

Provided is a coating material comprising a crosslinker component and a catalyst component, the coating material curing at temperatures of 10 to 80&#xb0; C., to the use of the coating materials to coat a variety of substrates and to coating compositions comprising coating material.

Non-aqueous room temperature-curing coating material

The invention relates to plastisols which even without the addition of adhesion promoters exhibit high adhesion to metallic and cathodically deposition-coated substrates.

Adhesive agents for plastisols

The invention relates to a multi-stage process for the continuous, phosgene-free preparation of (cyclo)aliphatic diisocyanates that comprises the conversion of (cyclo)aliphatic diamines into the corresponding (cyclo)alkylene biscarbamates and the thermal cleaving of the latter into the (cyclo)alkylene diisocyanates and alcohol. The urea used in accordance with the invention and also the urea employed for the preparation of urea equivalents (e.g. alkyl carbonates, alkyl carbamates) as a possible precursor for the synthesis of the (cyclo)aliphatic biscarbamates is unconditioned.

Process for the continuous preparation of (cyclo)aliphatic diisocyanates

A low-viscosity polyisocyanate of reduced color, containing isocyanurate groups is prepared by partially trimerizing an aliphatic and/or cycloaliphatic diisocyanate in the presence of 0.02 to 2% weight, based on the weight of the diisocyanate starting material, of at least one trimerization catalyst containing a quarternary amine component and then removing excess diisocyanate from the reaction medium.

Catalyst and process for preparing low-viscosity and color-reduced polyisocyanates containing isocyanurate groups

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 low-viscosity polyisocyanate of reduced color, containing isocyanurate groups is prepared by partially trimerizing an aliphatic and/or cycloaliphatic diisocyanate in the presence of 0.02 to 2% by weight, based on the weight of the diisocyanate starting material, of at least one trimerization catalyst containing a quarternary amine component and then removing excess diisocyanate from the reaction medium.

A nonaqueous, heat-cured, two-component coating has a combination of good scratch resistance and resistance to etching by acid rain and comprises a solvent-containing polyol component and a cross-linking component. The cross-linking component comprises at least one aliphatic and/or cycloaliphatic polyisocyanate having 2 to 6 NCO functional groups per molecule in which 0.1 to 95 mol % of the isocyanate groups of the polyisocyanate are reacted with an N-alkyl-3-aminopropyltrialkoxysilane and/or an N-aryl-3-aminopropyltrialkoxysilane. The weight ratio of the polyol to the cross-linking component in the coating is 6:1 to 1:2.

Nonaqueous, heat-curable two-component coating

Process for preparing low-odor and storage-stable monomer-containing polyisocyanurates from isophorone diisocyanate

An aqueous 2-component PU coating composition essentially comprising: A) an aqueous dispersion of at least one polyol component, B) a polyisocyanate component based on 2-methylpentane 1,5-diisocyanate, the proportions of A and B corresponding to an OH/NCO equivalents ratio of from 1:0.5 to 1:5.

Aqueous two-component polyurethane coating compositions based on 2-methylpentane-1,5-diisocyanate

A two-component polyurethane coating composition essentially comprising (A) a polyols component, (B) a polyisocyanate component, wherein the polyisocyanate component (B) comprises at least 30% by weight of a polyisocyanate based on 2-methylpentane-1,5-diisocyanate and a polyisocyanate based on isophorone diisocyanate, the sum of the two polyisocyanates being 100% by weight.

Two-component (PU) polyurethane coating composition with high

A reduced-color isocyanurate-functional polyisocyanate is prepared by partially trimerizing 1-isocyanato-3,3,5-trimethyl-5-isocyanatomethylcyclohexane (IPDI) having a low total chlorine content of less than 80 mg/kg in the presence of a catalyst, thereby resulting in a product isocyanurate-functional polyisocyanate having a content of free NCO groups of between 10 and 22% and a residual monomer content of less than 0.7%.

Process for preparing a reduced-color isocyanurate-functional

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Muenster, Germany

Rainer Lomoelder