Abstract: The present invention relates to a one-component system comprising a) at least one polyurethane prepolymer based on at least one di- and/or polyisocyanate and at least one di- and/or polyol, wherein at least one di- or polyol is a polyalkylene glycol having a number-average molecular weight of 900 to 2150 g/mol, wherein all unconverted isocyanate groups are blocked with at least one malonic ester and b) at least one di and/or polyamine; to a process for its production, to its use and to processes employing it for producing artificial leather and (artificial) leather coatings.

Abstract: Low molecular mass adduct compositions of isocyanatoalkyltrialkoxysilanes and aliphatic alkyl-branched diols or polyols are provided. The adduct compositions are liquid at temperatures of greater than 0° C. Coating compositions which provide scratch resistant clearcoat coatings upon curing are also provided.

Abstract: The invention relates to a continuous process for producing a reactive polymer based on compounds according to the structures (A1) and/or (A2) and phenolic resin in an extruder and to the reactive polymer produced according to said process and the use thereof for producing composite materials.

Abstract: The invention relates to a continuous process for producing a reactive polymer based on compounds according to the structures (A1) and/or (A2) and phenolic resin in an extruder and to the reactive polymer produced according to said process and the use thereof for producing composite materials.

Abstract: The present invention relates to a process for preparing hyperbranched, dendritic polyurethanes by means of reactive extrusion.

Abstract: The invention relates to low-viscosity polyaddition compounds containing uretdione groups, preparation process, and use.

Abstract: The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.

Abstract: The invention relates to a process for the solvent-free continuous preparation of a polymeric composition comprising a polymer and a thermoset, where the thermoset is prepared in the polymer matrix from its corresponding starting components, by reaction in an extruder, intensive kneader, intensive mixer, or static mixer, through intensive mixing and rapid reaction by briefly heating and with subsequent cooling to isolate the final product.

Abstract: The invention relates to a process for the solvent-free, continuous preparation of polyureas by reacting at least one isocyanate and/or isocyanurate having at least two NCO groups with at least one diamine and/or polyamine in an extruder, intensive kneader, intensive mixer or static mixer by thorough mixing and rapid reaction by briefly heating and subsequent cooling to isolate the end product.

Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder. The invention also relates to the use of polyaddition products containing uretdione groups for PUR powder coatings and for solvent-containing, one-component stoving enamels.

Abstract: The invention relates to a process for the preparation of polyaddition products containing uretdione groups, prepared from a polyisocyanate-uretdione having at least two free isocyanate groups, diols and, if desired, monoalcohols or monoamines, in which the polyaddition products containing uretdione groups are prepared by a solvent-free and continuous procedure which is carried out in an intensive kneading apparatus/extruder.

Abstract: Process for the continuous preparation of hydroxyalkylamides Process for the continuous preparation of hydroxyalkylamides from carboxylic esters and alkanolamines, wherein the reaction of the starting materials is carried out in an extruder or intensive mixer by intensive mixing and brief reaction with supply of heat and simultaneous removal of the alcohol formed and the final product is then isolated.