Abstract: Aqueous dispersion of a polyurethane, obtainable by reacting polyisocyanates and isocyanate-reactive compounds in miniemulsion, wherein the isocyanate-reactive compounds are at least in part polysiloxanes of the formula I where R1 and R2 independently of one another are a monovalent hydrocarbon radical having not more than 20 carbon atoms, which if appropriate may also contain heteroatoms such as O or N, R3 and R4 independently of one another are a single bond or a divalent hydrocarbon radical having not more than 20 carbon atoms, which if appropriate may also contain heteroatoms such as O or N, R5 and R6 independently of one another are a group OH, SH, NH2 or NHR7 and R7 is a monovalent hydrocarbon radical having not more than 20 carbon atoms, which if appropriate may also contain heteroatoms such as O or N, and n is an integer from 1 to 100.

Abstract: The invention relates to a method for producing high-purity and highly crystalline perovskite particles and to perovskite particles produced by said method.

Abstract: A process for preparing aqueous primary dispersions comprising at least one hydrophobic polyurethane obtainable in miniemulsion by reacting (a) at least one polyisocyanate and (b) at least one compound containing at least one isocyanate-reactive group in the presence of a catalyst.

Abstract: The invention relates to a method of conducting polymerization in nonaqueous miniemulsions.

Abstract: Hybrid dispersions comprising polyadducts and free-radical addition polymers, obtainable by first emulsifying the constituent monomers of said polyadducts and polymers in water and then conducting the polyaddition to prepare the polyadducts and the free-radical addition polymerization to prepare the polymers, the respective monomers being emulsified in water before 40% of the monomers of which the polyadducts are composed have reacted to form such polyadducts.

Abstract: The invention relates to aqueous primary dispersions which contain a hydrophobic polyurethane which is produced in a mini-emulsion by reacting with (a) polyisocyanate and (b) compounds containing isocyanate reactive groups. The invention also relates to a method for producing said dispersion and the use thereof for producing coatings and adhesives.

Abstract: The invention relates to a method for carrying out polyaddition reactions in mini-emulsions.

Abstract: The invention relates to a process for preparing an aqueous powder coating dispersion, which comprises introducing a liquid melt comprising binders and crosslinking agents and also, if desired, catalysts, auxiliaries and further additives such as devolatilizers, UV absorbers, free-radical scavengers and/or antioxidants into an emulsifying apparatus, preferably with the addition of water and stabilizers, and cooling and filtering the resultant emulsion.

Abstract: The invention relates to a method of synthesizing mesoporous solids using amphiphilic block copolymers as templates.

Abstract: Mesomorphic complexes which comprise anionic polyelectrolytes, cationic polyelectrolytes and/or polyampholytes and cationic, anionic, nonionic and/or amphoteric surfactants.

Abstract: The invention relates to the use of a mixture of(a1) a naturally occurring, zwitterionic phosphatide or a mixture of naturally occurring zwitterionic phosphatides and(a2) cholic acid and/or a salt of cholic acid and/or deoxycholic acid and/or a salt of deoxycholic acid and/or ricinoleic acid and/or a salt of ricinoleic acid and/or oleic acid and/or a salt of oleic acidas an emulsifier for the preparation of aqueous polymer dispersions which can be prepared by free radical emulsion polymerization of monomers which can be polymerized by free radicals or mixtures of monomers which can be polymerized by free radicals.