Henkel Kommanditgesellschaft Auf Aktien

Henkel Ag & Company, Kgaa

Harald Kuester

Rainer Schoenfeld

Thomas Bachon

Christian Holtgrewe

Juergen Geke

Beatrix Kottwitz

Andreas Taden

Karlheinz Hill

Stefan Kreiling

Bernd Stedry

Hubert K Schenkel

Claudia Mai

Michael Kux

Guadalupe Sanchis Otero

Andreas Wilde

Sigrid Igelmund

Andrea Berger

The invention relates to a method for producing a cured composition which has at least one oxazolidinone ring and at least one isocyanurate ring and is cross-linked by the same, starting from a liquid reactive mixture which, based on the total weight thereof, contains at least one epoxy resin, at least one polyisocyanate, at least one polyol, and at least one catalyst composition. The invention further relates to the cured composition obtainable thereby.

Cured composition having high impact strength and temperature resistance, based on an epoxy resin and a polyisocyanate

The present invention relates to a catalyst composition for curing resins containing epoxy groups, in particular epoxy/polyurethane hybrid resins, the catalyst composition containing an imidazolium salt, in addition to a base, as well as a method for curing such resins in the presence of the catalyst composition, to the use of the catalyst composition for curing resins containing epoxy groups, to resin systems comprising a resin containing epoxy groups and the catalyst composition, and to a dosing system that comprises the resin and the catalyst composition.

Catalyst composition for curing resins containing epoxy groups

The present invention relates to adhesive compositions containing a prepolymer which can be obtained by reacting a reaction mixture containing: at least one epoxy resin; at least one polyetherdiamine or polyethertriamine; at least one carboxyl-terminated butadiene-acrylonitrile copolymer (CTBN); and rubber particles having a core/shell structure. The invention also relates to methods for curing said compositions, to the cured adhesive compositions thus obtained, to the use thereof for bonding components and to the components thus obtained.

Epoxy resin composition

Condensation products prepared from cyclic carboxylic anhydrides of dicarboxylic acids, tricarboxylic anhydrides or tetracarboxylic anhydrides and difunctional polyamines, in particular polyoxyalkyleneamines, are suitable as a builder component for epoxy resin compositions. The reaction products based on tricarboxylic anhydrides or tetracarboxylic anhydrides are distinguished by having on average more than one imide group and carboxyl group per molecule. The compositions may optionally also contain condensation products obtained from tri- or poly-functional polyols and/or tri- or poly-functional amino-terminated polymers and cyclic carboxylic anhydrides, wherein the latter reaction products contain on average more than one carboxyl group per molecule. These compositions additionally contain conventional rubber-modified epoxy resins together with liquid and/or solid polyepoxy resins and conventional hardeners and accelerators and optionally fillers and rheology auxiliaries. Such compositions are particularly suitable as impact-resistant, impact/peel-resistant and peel-resistant adhesives in vehicle construction and in electronics. Particularly at very low temperatures, these adhesives exhibit very good impact and peel properties combined with very good corrosion resistance and ageing resistance of the adhesive bond.

Composition of epoxy resin, low glass transition temperature copolymer, latent hardener and carboxy-terminated polyamide and/or polyamide

Nitrogen-free corrosion inhibitors having a good buffering effect

Process for the production of a benzoyloxybenzene sulfonate by reaction of a phenol sulfonate with an optionally substituted benzoyl chloride in the presence of a base, wherein the reaction is carried out in a solvent mixture consisting of water and an organic solvent which is ethanol, isopropanol, dioxane, tetrahydrofuran, or mixtures thereof.

Process for the production of benzoyloxybenzene sulfonates

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Duesseldorf, Germany

Harald Kuester