Abstract: The invention relates to a process for preparing a diisocyanate of the formula (A) where R is selected from the group consisting of alkyl, aryl, and combinations thereof, comprising the following process steps in the indicated order; 1) providing an intermediate of the formula (B) with a process using lysine and urea and where R and each R? are independently selected from the group consisting of alkyl, aryl, and combinations thereof; and 2) thermolytic cleavage of the intermediate of the formula (B), thereby affording the diisocyanate of the formula (A), and also to the diisocyanate directly prepared therewith.

Abstract: The present invention provides compositions consisting of a) at least one metal salt, ammonium salt or phosphonium salt of a strong Brønsted acid and b) at least one primary aliphatic monoamine, processes for preparation thereof and use thereof.

Abstract: The present invention relates to a composition comprising a) at least one epoxy resin, b) at least one amine having at least two secondary amino groups which are both part of an organic ring system, and c) at least one salt of a very strong Brønsted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and ammonium ions, and to processes for production thereof and use thereof.

Abstract: The present invention provides a composition comprising a) at least one epoxy resin, b) at least one cyclic amine of the formula (I) in which R1 to R4 is H or an organic radical and X?—(Y1)m-(A1)n-(Y2)o-(A2)p-(Y3)q-(A3)r-(Y4)s—,??(II) where, independently of one another, m, n, o, p, q, r and s=0 or 1, A1, A2, A3=alkylene or alkenylene radical and Y1, Y2, Y3, Y4=NR5, PR5, O or S, where R5 independently=organic radical, where any two organic radicals selected from R1 to R5 and any radicals present in the alkylene and/or alkenylene radicals A1, A2, A3 may also form one or more further rings, with the proviso that at least one of the radicals selected from R1 to R5 present and any radicals present in the alkylene and/or alkenylene radicals A1, A2, A3 is substituted by at least one —NHR6 or —NH2 group, where R6=organic radical, and c) at least one salt of a very strong Brønsted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and unsubstituted ammonium ions, and t

Abstract: The present invention relates to a process for preparing at least one ethylenically unsaturated, urethane group-containing compound from i) diisocyanate, ii) at least one compound having at least one hydroxyl group and at least one ethylenically unsaturated, polymerizable group, iii) and optionally at least one hydroxyl group-containing compound, in which 1 diisocyanate is subjected to a determination of the peroxide content immediately prior to the reaction, 2 a) if the determined peroxide content is greater than or equal to 20 mmol/kg, the diisocyanate is subjected to distillative purification until the determined peroxide content is less than 20 mmol/kg, or or b) if the determined peroxide content is less than 20 mmol/kg, no distillative purification is performed, and 3.

Abstract: The invention relates to a process for preparing a diisocyanate of the formula (A) where R is selected from the group consisting of alkyl, aryl, and combinations thereof, comprising the following process steps in the indicated order; 1) providing an intermediate of the formula (B) with a process using lysine and urea and ?where R and each R? are independently selected from the group consisting of alkyl, aryl, and combinations thereof; and 2) thermolytic cleavage of the intermediate of the formula (B), thereby affording the diisocyanate of the formula (A), and also to the diisocyanate directly prepared therewith.

Abstract: The present invention provides a process for preparing isocyanurate from diisocyanate, in which i) prior to the reaction the peroxide content of the diisocyanate to be used is determined, and thereafter ii) a) if the determined peroxide content is greater than 10 mmol/kg, the diisocyanate is subjected to distillative purification until the determined peroxide content is less than or equal to 10 mmol/kg, orb) if the determined peroxide content is less than or equal to 10 mmol/kg, no further action is taken, and iii) distilled diisocyanate with respect to a) and/or untreated diisocyanate with respect to b) is subsequently converted to isocyanurate.

Abstract: The present invention provides compositions consisting of a) at least one metal salt, ammonium salt or phosphonium salt of a strong Brønsted acid and b) at least one primary aliphatic monoamine, processes for preparation thereof and use thereof.

Abstract: The present invention relates to a process for producing NCO-containing prepolymers, to the prepolymers producible by the process and to the use of the prepolymers.

Abstract: The invention relates to storage-stable one-component (1K) polyurethane prepregs and to shaped bodies produced therefrom.

Abstract: The present invention relates to a composition comprising a) at least one epoxy resin, b) at least one amine having at least two secondary amino groups which are both part of an organic ring system, and c) at least one salt of a very strong Brosted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and ammonium ions, and to processes for production thereof and use thereof.

Abstract: The present invention provides a composition comprising a) at least one epoxy resin, b) at least one cyclic amine of the formula (I) in which R1 to R4 is H or an organic radical and X?—(Y1)m-(A1)n-(Y2)o-(A2)p-(Y3)q-(A3)r-(Y4)s—, ??(II) where, independently of one another, m, n, o, p, q, r and s=0 or 1, A1, A2, A3=alkylene or alkenylene radical and Y1, Y2, Y3, Y4=NR5, PR5, O or S, where R5 independently=organic radical, where any two organic radicals selected from R1 to R5 and any radicals present in the alkylene and/or alkenylene radicals A1, A2, A3 may also form one or more further rings, with the proviso that at least one of the radicals selected from R1 to R5 present and any radicals present in the alkylene and/or alkenylene radicals A1, A2, A3 is substituted by at least one —NHR6 or —NH2 group, where R6=organic radical, and c) at least one salt of a very strong Brønsted acid with a counterion selected from metal ions, metal-containing ions, phosphonium ions and unsubstituted ammonium io

Abstract: The invention relates to storage-stable one-component (1K) polyurethane prepregs and to shaped bodies produced therefrom.

Abstract: A coating, adhesive or sealant contains a non-aqueous dispersion, containing A) a liquid phase containing at least one liquid polyolefin having an OH group, B) at least one reactive polyurethane (PUR) component, and C) optionally a further auxiliary, an additive or both, wherein the reactive polyurethane component B) is in fine distribution with a median particle diameter d50 of <100 ?m in the liquid phase of component A).

Abstract: A thermally curable and radiation-curable formulation, contains A) 45% to 99.9% by weight of at least one radiation-curable component; and B) 0.1% to 5% by weight of at least one selected free-radically initiating photo-initiator; and optionally C) 0.01% to 50% by weight of at least one additive; wherein the sum total of A) and B) and any C) is 100% by weight. The formulation is curable with actinic radiation and/or thermally and is used, for example, for the production of pigmented and pigment-free coating materials, and for adhesives and sealants.

Abstract: A high-reactivity polyurethane composition useful in coatings and adhesives, contains the following components A)-D): A) 5 to 98.7 wt %, based on the total mass of the components, of at least one compound containing an uretdione group, and a free NCO content of less than 5 wt %, and an uretdione content of 2 to 25 wt %, based on i) aliphatic and/or (cyclo)aliphatic and/or cycloaliphatic polyisocyanates and ii) compounds containing hydroxyl groups; B) 0.2 to 5 wt %, based on the total mass of the components, of at least one catalyst selected from the group consisting of a substituted carbonate salt having a quaternary ammonium counterion, a substituted carbonate salt having a quaternary phosphonium counterion and mixtures thereof; C) 0.

Abstract: The invention relates to a low-monomer NCO prepolymer composition of the type A-B-A, which is obtained by reacting CH-acidic compounds with diisocyanates, and methods for the production and use thereof.

Abstract: The present invention relates to epoxy resin formulations comprising a specific catalyst mixture for enhancing the reactivity thereof.

Abstract: The invention relates to reactive compounds on the basis of transesterification, comprising A1) at least one dicarboxylic or polycarboxylic acid ester component comprising at least two or more ester groups, comprising at least one monofunctional alcohol having a mean molar mass Mn of less than or equal to 200 g/mol as the esterification component and A2) at least one diol or polyol component having at least two or more OH groups and/or B) at least one component carrying carboxylic acid ester groups, comprising at least one monofunctional alcohol having a mean molar mass Mn of less than or equal to 200 g/mol as the esterification component, and alcohol groups; and C) bismuth triflate as the catalyst; D) optionally further auxiliary agents.

Abstract: The present invention relates to epoxy resin formulations comprising a specific catalyst mixture for enhancing the reactivity thereof.