Abstract: An improved process is proposed for preparing cyclocarbonate-functionalized compounds of the general formula (I) where R1 and R2 in each occurrence are independently selected from hydrogen, methyl and ethyl, I in each occurrence independently is from 2 to 50, m in each occurrence independently is 0 or 1, and n is =3, subject to the proviso that the sum of all I values in the molecule is from 5 to 100, by reacting a chloroformate of formula (II) with a trifunctional amine of the general formula (III) characterized in that the reacting is carried out in an aqueous/organic two-phase system in the presence of an auxiliary base and of a phase transfer catalyst.

Abstract: A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder, a process for the preparation of the binder, an aqueous dispersion containing the binder, a system comprising the binder, water and an (amine) curing agent and the use of the binder for the production of a hardened coating are proposed. It was surprisingly found that this binder, in which the emulsifier groups according to the invention are incorporated in the polymer chain, gives stable aqueous dispersions having a solids content of up to a 30% by weight.

Abstract: 2-Oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or may be methyl or ethyl or an n-valent radical, which may be substituted with at most n?1 further 2-oxo-1,3-dioxolane-4-carboxyl groups, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.

Abstract: Proposed are 2-oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or can be preferably Me or Et or a radical having a valency of 2 to 5, which is substituted with an amount of further 2-oxo-1,3-dioxolane-4-carboxyl groups equal to the radical valency minus 1, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.

Abstract: The invention relates to a composition comprising (A) at least 5% by weight of en organic prepolymer P having at least two water-crossilnkable organosilicon end groups, (B) 0.01% to 3.0% by weight of boric acid and/or bone ester, and (C) 0.01% to 3.0% by weight of an amine component. Additionally disclosed is a method for the curing of these compositions and also the use of boric acid and/or boric esters and an amine component a condensation catalyst.

Abstract: The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.

Abstract: The invention relates to a process for the preparation of polymers by free radical polymerization of monomers in the presence of water, electrochemically produced free radicals being used for initiating the free radical polymerization.

Abstract: A water-dispersible, cyclocarbonate-functionalized vinyl copolymer binder, a process for the preparation of the binder, an aqueous dispersion containing the binder, a system comprising the binder, water and an (amine) curing agent and the use of the binder for the production of a hardened coating are proposed. It was surprisingly found that this binder, in which the emulsifier groups according to the invention are incorporated in the polymer chain, gives stable aqueous dispersions having a solids content of up to a 30% by weight.

Abstract: The invention relates to a process for the preparation of a copolymer by free radical mass polymerization of a maleic acid monoester derivative with vinyl ester in the presence of an acid having a pKa of less than 1.8. The copolymer is suitable as a dispersant for hydraulic binders.

Abstract: The invention relates to a process for preparing multimetal cyanide compounds by reacting the aqueous solution of a metal salt a) with the aqueous solution of a hexacyanometalate compound b), wherein the mixture of the solutions a) and b) flows over the surface of a rotating body A to an outer region of the surface of the rotating body A and is flung off from there.

Abstract: The proposed spinning disc reactor comprises substantially a horizontally rotatable, disc-like and thermostatable support element which has an outer reaction surface, feed means for feeding at least one reactant onto the reaction surface and internal structures for thermostating the reaction surface. In addition, it contains at least one separation apparatus for collecting and removing the reaction product from the reaction surface. The support element is characterized in particular in that it consists of two components a) and b) arranged horizontally one on top of the other and having substantially identical surface measures. These two components are connected to one another in an interlocking manner and tightly during the operating time and the lower component a) has, on its top facing the inner region of the support element, at least one substantially uninterrupted groove milled in over an extensive area and intended for receiving, conducting and discharging a heat-transfer fluid.

Abstract: 2-Oxo-1,3-dioxolane-4-carboxylic acid and derivatives thereof, according to the following formula, in which R1 represents a negative charge, hydrogen or may be methyl or ethyl or an n-valent radical, which may be substituted with at most n?1 further 2-oxo-1,3-dioxolane-4-carboxyl groups, as well as a process for their preparation by means of carboxylation of the corresponding epoxides, a process for their transesterification and their use for the preparation of hydroxyurethanes and as end groups for the blocking of amines.

Abstract: The invention relates to a process for the preparation of copolymers containing acid monomer structural units and polyether macromonomer structural units, which is carried out in a continuous mode of operation in a reactor which has ?) a body B rotating about an axis of rotation and having a reaction surface, ?) a metering system and ?) a device for irradiating the reaction surface, i) the components of a starting reaction composition being applied individually and/or as a mixture with the aid of the metering system in a thin film on an inner region of the reaction surface of the rotating body B so that the thin film flows over the reaction surface of the rotating body B to an outer region of the reaction surface of the rotating body B, the thin film on the reaction surface being electromagnetically irradiated by means of the device for the irradiation of the reaction surface, ii) the thin film leaving the reaction surface as a reaction composition which has copolymer containing acid monomer structural uni

Abstract: The invention relates to a process for the preparation of silylated polyurethanes and/or polyureas, comprising the steps: a) application of a component ?) containing isocyanate and of a component ?) containing polyol and/or polyamine to at least one surface of body A, which surface rotates about an axis of rotation and has a temperature between 60 and 400° C., and b) reaction of the reaction product of ?) isocyanate and ?) polyol and/or polyamine with a silylating agent.

Abstract: The invention relates to a process for the preparation of metal nanoparticles, selected from the group consisting of lead, bismuth, zinc, antimony, indium, gold, nickel, cobalt, palladium, platinum, iridium, osmium, rhodium, ruthenium, rhenium, vanadium, chromium, manganese, niobium, molybdenum, tungsten, tantalum, cadmium, silver and/or copper, on a rotating body, characterized in that a reduction of corresponding metal salts, corresponding metal salt complexes, corresponding metal hydroxides and/or corresponding metal oxides by polyols having a number of hydroxyl groups in the polyol of 1 to 10 and a molecular weight of the polyols of 2000 to 18 000 Da is effected.

Abstract: The present invention relates to a method for removing isocyanate from a reaction product of isocyanate with compounds reactive towards isocyanates, the reaction product being applied to the surface of a rotating body A, the reaction product flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and isocyanate which was used for the preparation of the reaction product and has not reacted evaporating from the mixture in the process.

Abstract: The invention relates to a method for removing water from a mixture containing at least one compound having at least one group reactive towards isocyanate and containing water, the mixture being applied to the surface of a rotating body A, the mixture flowing over the surface of the rotating body A to an outer region of the surface of the rotating body A and water evaporating from the mixture. In particular, this method is suitable for removing water from alcohols and amines.

Abstract: The invention relates to a process for the preparation of a copolymer by free radical mass polymerization of a maleic acid monoester derivative with vinyl ester in the presence of an acid having a pKa of less than 1.8. The copolymer is suitable as a dispersant for hydraulic binders.

Abstract: The invention relates to a process for the preparation of polymers by free radical polymerization of monomers in the presence of water, electrochemically produced free radicals being used for initiating the free radical polymerization.