Abstract: The present invention relates to iron-containing nanoparticles having a modular structure, their production, and their use for diagnostic and therapeutic purposes.

Abstract: The invention relates to compounds of general formula I

Abstract: A thermoplastic molding composition comprising aromatic polycarbonate, saccharine and a compound having at least one ester group in its structure is disclosed. The inventive composition is characterized in its improved stability and hence suitable for the preparation of stable films, compact discs and sheets.

Abstract: X-ray detectable molded articles prepared from polycarbonate resins are disclosed. The articles, preferably toys or medical equipment, are molded of polycarbonate the structure of which contains units derived from iodophenyl.

Abstract: A compound of formula (I): wherein, R1 is independently selected from methyl and ethyl and R2 is independently selected from hydrogen, alkyl, and substituted alkyl. The compound is capable of functioning as a ligand and complexing with paramagnetic Fe(III) ion for use as a second-sphere contrast enhancing agent for magnetic resonance imaging of tissue. The present invention also relates to a method of administering the second sphere contrast agent.

Abstract: An electrical device such as a ballast for fluorescent lamps and including a housing, a terminal, and a catch element for connecting the terminal to the housing, the catch element including a catch leg for connecting the terminal to the catch element and for connecting the catch element to the housing. Accordingly, the electrical device is designed such that the individual terminal sites of the terminal have minimal positional tolerance so that the terminal can be wired with an automatic installation machine without the danger of misinsertions.

Abstract: An electric module which includes a printed circuit board and at least one electrical subassembly arranged thereon is disposed within a metallic housing and is grounded to the metallic housing by way of a wire bridge which extends transversely across a cutout disposed in the printed circuit board. The metallic housing is integrally connected to a contact tongue which extends through the cutout and the printed circuit board before engaging the wire bridge. The wire bridge connects one side of the printed circuit board to a ground conductor track disposed on the opposing side of the printed circuit board. Preferably, the contact tongue includes two closely spaced contact elements that are spaced apart for frictionally receiving the wire bridge therebetween.

Abstract: Cascade polymer complexes containing a) complexing ligands of general formula I A—{X—[Y—(Z—( W—Kw)z)y]x}a  (I)  in which A stands for a nitrogen-containing cascade nucleus of base multiplicity a, X and Y, independently of one another, stand for a direct bond or a cascade reproduction unit of reproduction multiplicity x or y, Z and W, independently of one another, stand for a cascade reproduction unit of reproduction multiplicity z or w, K stands for the radical of a complexing agent, a stands for numbers 2 to 12, x, y, z and w, independently of one another, stand for numbers 1 to 4, provided that at least two reproduction units are different and that 16≦a·x·y·z·w≦64 holds true for the product of the multiplicities, b) at least 16 ions of an element of atomic numbers 20 to 29, 39, 42, 44 or 57-83 and c) optionally cations of inorganic and/or organic bases, amino acids or amino acid amides are valuab

Abstract: A thermoplastic polycarbonate molding composition having improved resistance to gamma radiation-induced yellowing is disclosed. Particularly suitable for the manufacture of devices targeted for medical applications, the composition contains additive amounts of a first stabilizing compound conforming structurally to wherein in the embodiment where n is 1, R1 is an unsubstituted or substituted carbocyclic or heterocyclic aromatic ring system, and where in the embodiment where n is 2, R1 is unsubstituted or C1-4-alkyl or hydroxy substituted phenylene or naphthylene, and R2, R3, R4 and R5 independently of one another are hydrogen, C1-25-alkyl groups or phenyl. and a saccharine compound.

Abstract: The invention relates to a process for the preparation of aromatic oligocarbonates from dihydroxy compounds, CO and O.sub.2 in the presence of a platinum metal catalyst, a cocatalyst, a quaternary salt and a base, which is carried out in an inert organic solvent which, under the reaction conditions, forms an azeotrope with water, and this azeotrope is removed from the reaction mixture.

Abstract: A compound of formula (I): ##STR1## wherein, R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are selected independently from hydrogen, alkyl, and alkyl substituted with one or more --O-- atoms, or where R.sup.1, R.sup.2 and R.sup.3, R.sup.4 are ring residues. The compound is capable of functioning as a ligand and complexing with paramagnetic Fe(III) ion for use as a second-sphere contrast enhancing agent for magnetic resonance imaging of tissue, and a method of administering the second sphere contrast agent.

Abstract: 3-,8-substituted deuteroporphyrin derivatives with various substituents in the 13- and 17-positions of the porphyrin skeleton are suitable as pharmaceutical agents for use in photodynamic therapy (PDT) and for MRI therapy monitoring.

Abstract: The invention relates to new porphyrin complex compounds, pharmaceutical agents that contain the latter, and the use of porphyrin complexes for the production of agents for photodynamic therapy and MRI diagnosis.

Abstract: The invention relates to new compounds that are suitable as contrast media especially for infarction and necrosis imaging, process for their production and pharmaceutical agents that contain these compounds.

Abstract: A process for the production of polysiloxane/polycarbonate block cocondensation products is disclosed. The process comprises reacting in the melt at temperatures of 250 to 320.degree. C. and pressures of 0.01 to 100 mbar (a) a hydroxyaryloxy-terminated dimethylsiloxane with (b) an oligocarbonate. The oligocarbonate is characterized in that its weight average molecular weight is 3000 to 24000 and the molar ratio of its OH end groups to aryl end groups is 10:90 to 70:30. The weight ratio of said (a) to said (b) in the inventive process is between 1:99 and 40:60. Also disclosed are the products prepared by the process.

Abstract: Cascade polymer complexes that contain a) complexing ligands of general formula (I), in which A stands for a nitrogen-containing cascade nucleus of base multiplicity a, X and Y, independently of one another, stand for a direct bond or a cascade reproduction unit of reproduction multiplicity x or y, z and W, independently of one another, stand for a cascade reproduction unit of reproduction multiplicity z or w, K stands for the radical of a complexing agent, a stands for numbers 2 to 12, x, y, z and w, independently of one another, stand for numbers 1 to 4, provided that at least two reproduction units are different, and that 16.ltoreq.a.multidot.x.multidot.y.multidot.z.multidot.w.ltoreq.

Abstract: Modular iron-containing nanoparticles are disclosed, as well as their production and use in diagnosis and therapy. The nanoparticles are characterised in that they have an iron-containing core, a primary coat (synthetic polymer) and a secondary coat (target polymer), and optional auxiliary pharmaceutical substances, pharmaceuticals and/or adsorption mediators.

Abstract: A transparent thermoplastic molding composition having good release properties is disclosed. The composition which contains no magnetic elements contains a polycarbonate resin and 0.01 to 0.3 percent by weight of a mold release agent. The agent is the product of a reaction of a compound represented by formula (I) ##STR1## where R.sub.1 denotes a C.sub.1-30 -alkyl group, with at least one member selected from the group consisting of ##STR2## where R.sub.2 and R.sub.3 independently denote C.sub.1-30 - alkyl or an aryl group, and ##STR3## where n is 1-7.

Abstract: Oligomeric compounds that contain perfluoroalkyl of general formula IA--R.sup.F (I)in whichA is a molecule portion that contains 2-6 metal complexes that are connected directly or via a linker to a nitrogen atom of an annular skeleton chain, andR.sup.F is a perfluorinated, straight-chain or branched carbon chain with formula --C.sub.n F.sub.2n E, in which E represents a terminal fluorine, chlorine, bromine, iodine, or hydrogen atom and n stands for numbers 4-30,are valuable compounds for diagnosis, especially as in-vivo contrast media.

Abstract: The present invention provides polycarbonate moulding compositions containing polycarbonates, stabilisers of the general formula (I)R.sub.1 --X--(CHR.sub.4).sub.n --Y--R.sub.2and optionally polypropylene glycols.The present invention also provides use of these moulding compositions for preparing items for medical applications.