Abstract: A gas diffusion electrode is described, especially for use in chloralkali electrolysis, said gas diffusion electrode having finely divided components on the liquid side. The electrode is notable for a low perviosity to gases and a lower operating voltage.

Abstract: The invention relates to an electrolysis cell for the particularly efficient treatment of wastewater polluted with organic substances by electrooxidative degradation of the wastewater constituents contributing to the chemical oxygen demand, and also its use.

Abstract: The present invention relates to a method for silylating 2-amino-1,3,5-triazines of the general formula (I) in which R1 and R2 are each independently hydrogen, hydroxyl, NH2, NHR3, NR32, NO2, NHCOR3, C1- to C2-alkyl, C1- to C20-hydroxyalkyl, C2- to C20-alkenyl, C1- to C20-alkoxy, aryl or aryloxy optionally substituted with C1- to C8-alkyl and R3 is C1- to C20-alkyl, C3- to C12-cycloalkyl, C4 to C30-alkylcycloalkyl, aryl optionally substituted with C1- to C8-alkyl, with silanes, by reacting silanes of the general formula (II) X—SiH(R4R5)??(II), in which X is fluorine, chlorine, bromine or iodine R4 and R5 are each independently C1- to C20-alkyl, C1- to C20-hydroxyalkyl, C1- to C20-haloalkyl, C2- to C20-alkenyl, C1- to C20-alkoxy, aryl or aryloxy optionally substituted with C1- to C8-alkyl, in the presence of a base.

Abstract: Hyperbranched polycarbonates having stabilizing groups, prepared by reaction of (a) at least one compound having at least three alcoholic hydroxyl groups per molecule with (b) at least one reagent of the general formula I (c) and at least one reagent of the general formula X3-(A1)m-X4, where the variables are defined as follows: X1, X2 are identical or different and are selected from among halogen, C1-C10-alkoxy, C6-C10-aryloxy and O—C(?O)-halogen, X3 is a functional group selected from among OH, SH, NH2, NH—C1-C4-alkyl, iso-cyanate, epoxy, COOH, COOR12, C(?O)—O—C(?O), C(?O)—Cl, R12 is C1-C4-alkyl or C6-C10-aryl, A1 is a spacer or a single bond, m is zero or one. X4 is a group selected from among phenol groups, benzophenones, aromatic amines and nitrogen-comprising heterocycles, in each case substituted or unsubstituted.

Abstract: The invention relates to elastic expanded polymer foams and also a process for producing expanded polymer foams by sintering a mixture comprising foam particles P1 and P2 composed of different thermoplastic polymers or polymer blends, wherein the foam particles P1 are obtained by prefoaming expandable, thermoplastic polymer particles comprising A) from 45 to 97.9 percent by weight of a styrene polymer, B1) from 1 to 45 percent by weight of a polyolefin having a melting point in the range from 105 to 140° C., B2) from 0 to 25 percent by weight of a polyolefin having a melting point below 105° C., C1) from 0.1 to 25 percent by weight of a styrene-butadiene or styrene-isoprene block copolymer, C2) from 0.0 to 10 percent by weight of a styrene-ethylene-butylene block copolymer, D) from 1 to 15 percent by weight of a blowing agent, E) from 0 to 5 percent by weight of a nucleating agent, where the sum of A) to E) is 100% by weight.

Abstract: The invention relates to a catalyst and to a process for hydrogenating organic compounds. In particular, the invention is directed to a process and catalyst for hydrogenating organic compounds with hydrogen. The organic compounds are subjected to hydrogenation in the presence of a catalyst comprising nitrogen-doped carbon nanotubes as a catalytically active component, wherein the proportion of nitrogen in the nanotubes is in the range of from about 0.05 to 20 wt. %.

Abstract: The present invention relates to a molding composition, comprising from 10 to 99.999% by weight of at least one polyoxymethylene as component (A1) and from 0.001 to 10% by weight, based on the weight of component (A1) present in the molding composition, of at least one zeolitic material whose pore diameter is in the range from 0.3 to 0.5 nm, determined to DIN 66134 and DIN 66135, where the size of the particles of the zeolitic material is in the range from 3 to 7 ?m, determined to ISO 13320, and also to moldings that can be produced from this molding composition.