Abstract: This invention describes a process for recovery of iopromide, suitable for pharmaceutical purposes, by heat treatment of the mother liquors or the secondary crystallizate in a reactor and subsequent crystallization.

Abstract: This invention describes a process for recovery of iopromide, suitable for pharmaceutical purposes, by heat treatment of the mother liquors or the secondary crystallizate in a reactor and subsequent crystallization.

Abstract: (Co)polymers preparable by free-radical (co)polymerization of olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, processes for preparing (co)polymers by free-radical (co)polymerization of olefinically unsaturated monomers, which involves (co)polymerizing the olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, and the use of thiocarbamate-functional organic compounds as regulators in the free-radical (co)polymerization of olefinically unsaturated monomers.

Abstract: Novel polyurethanes containing sulfide groups which comprise at least one group of the general formula I in the polymer main chain and/or at least one group of the general formula II incorporated at the chain end: —X—A—S—B—Y—??(I) —X—A—S—B—YH??(II) in which the variables have the following definitions: S is the sulfur atom; X and Y independently of one another are oxygen atoms, sulfur atoms or groups —NZ where Z is the hydrogen atom or an alkyl radical of 1 to 10 carbon atoms; and A and B independently of one another are divalent organic radicals; novel polymer mixtures based thereon, and the use of the novel polyurethanes and polymer mixtures and dispersions thereof for the preparation of coating materials, adhesives and sealing compounds.

Abstract: (Co)polymers preparable by free-radical (co)polymerization of olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, processes for preparing (co)polymers by free-radical (co)polymerization of olefinically unsaturated monomers, which involves (co)polymerizing the olefinically unsaturated monomers in the presence of at least one thiocarbamate-functional organic compound, and the use of thiocarbamate-functional organic compounds as regulators in the free-radical (co)polymerization of olefinically unsaturated monomers.

Abstract: Graft copolymers based on polyurethane, preparable by graft copolymerizing at least one hydrophobic or hydrophilic polyurethane containing on average at least one thiol group with at least one olefinically unsaturated monomer in solution or in an aqueous dispersion, and the use of the graft copolymers for preparing aqueous dispersions, coating materials, adhesives, and sealing compounds.