Umicore Ag & Co Kg

Ciba Specialty Chemicals Corporation

Basf Se Corporation

Michael Lennartz

Sandra Weiss

Dan V Goia

Marco Lopez

Carsten Becker

Adolf Käser

Frank-Walter Schuetze

Stéphanie Chevalliot

Ralf Karch

Angelino Doppiu

Eileen Woerner

Annika Frey

Andreas Rivas-Nass

Asko Karppi

Matthias Rauls

Sabine Weiguny

Christoph Hengst

Charles Hunger

Timo Ebert

Stephan Eckhoff

Michael Seyler

Anke Schuler

Benjamin Barth

Andreas Rivas Nass

Thorsten Beierling

Dölf Käser

Frank Welsch

Andreas Rivas-nass

Rafael Benjamin Berk

Louis Hartmann

Lukas Karl Metzger

Cheuck Hin Ching

Asko Olavi Karppi

Sabine Frischhut

Hubert Gasteiger

The invention relates to tetraalkylammonium-tetra- or hexahydroxometallates such as tetraethylammonium hexahydroxoplatinate, (N(alkyl)4)y[M(OH)x], a method for the production thereof, and the use thereof for producing catalysts.

Precious metal compounds

The invention relates to the use of a catalyst as a passive nitrogen oxide adsorber, which has a carrier substrate, a zeolite, palladium, and platinum, wherein the palladium is provided in a quantity of 0.01 to 10 wt. %, based on the sum of the weights of zeolite, platinum, and palladium and calculated as a palladium metal, and platinum in a quantity of 0.1 to 10 wt. %, based on the weight of the palladium and calculated as a platinum metal. The invention also relates to the use of said catalyst in connection with a SCR catalyst in an exhaust gas system.

Use of a palladium/platinum/zeolite-based catalyst as passive nitrogen oxide adsorber for purifying exhaust gas

The invention relates to a catalyst which comprises a carrier substrate, palladium, and a zeolite, the largest channels of which are formed by 10 tetradrically coordinated atoms; to the use of said catalyst as a passive nitrogen oxide adsorber, an exhaust gas system which contains said catalyst and an SCR catalyst, and to a method for purifying the exhaust gas of motor vehicles using said exhaust gas system.

Palladium/zeolite-based passive nitrogen oxide adsorber catalyst for purifying exhaust gas

The present invention relates to an SCR-active material, comprising a small-pore zeolite, aluminum oxide and copper, characterized in that it contains 5 to 25 wt-% of aluminum oxide in relation to the entire material and that the copper is present on the aluminum oxide in a first concentration and on the small-pore zeolite in a second concentration.

SCR-active material

The invention discloses core/shell, type catalyst particles comprising a M/Mstructure with M=inner particle core and M=outer particle shell, wherein the medium diameter of the catalyst particle (d) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (t) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt&#x2dc;based shell reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.

Core/shell-type catalyst particles and methods for their preparation

The invention relates to a composition for surface coloration of paper web comprising a) from 0.1 to 30% by weight, based on the total weight of the composition, of a coloring pigment, b) from 0.1 to 20% by weight, based on the total weight of the composition of a starch/latex copolymer, characterized in that, in addition to starch, the monomeric components that are copolymerized comprise i) styrene or a substituted styrene, ii) an acrylate and/or methacrylate and, optionally, iii) one or more further ethylenically unsaturated monomers, c) from 0 to 20% by weight, based on the total weight of the composition, of starch or a starch derivative, d) from 0 to 10% by weight, based on the total weight of the composition of one or more auxiliaries and e) water to complete to 100% by weight, based on the total weight of the composition.

Composition for surface colouration of paper

The invention discloses core/shell type catalyst particles comprising a M/Mstructure with M=inner particle core and M=outer particle shell, wherein the medium diameter of the catalyst particle (d) is in the range of 20 to 100 nm, preferably in the range of 20 to 50 nm. The thickness of the outer shell (t) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.

The invention discloses core/shell type catalyst particles comprising a M/Mstructure with M=inner particle core and M&#x2212;outer particle shell, wherein the medium diameter of the catalyst particle (d) is &#x2267;20 nm. The thickness of the outer shell (t) comprises at least 3 atomic layers. The core/shell type catalyst particles, particularly the particles comprising a Pt-based shell, reveal a high specific activity. The catalyst particles are preferably supported on suitable support materials such as carbon black and are used as electrocatalysts for fuel cells.

The invention is directed to core/shell type catalyst particles comprising a M/Mstructure with M=inner particle core and M=outer particle shell, wherein the medium diameter of the catalyst particle (d+) is in the range of 20 to 100 nm, 5 preferably in the range of 20 to 50 nm. The thickness of the outer shell (t) is about 5 to 20% of the diameter of the inner particle core of said catalyst particle, preferably comprising at least 3 atomic layers. The inner particle core (M) of the particles comprises metal or ceramic materials, whereas the material of the outer shell (M) comprises precious metals and/or alloys thereof. The core/shell type catalyst particles are preferably supported on suitable support materials such as carbon black and can be used as electrocatalysts for fuel cells and for other catalytic applications.

Core / shell-type catalyst particles comprising metal or ceramic core materials and methods for their preparation

The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper. The dyes are of formula (14), (15) or (16) in which

Yellow anionic disazo dyes

The invention relates to a process for the surface coloration of paper characterized in that, in a first step, the paper surface is treated with a water soluble dye and, subsequently, in a second step, the paper surface is treated with a fixing agent.

Process for surface colouration of paper

The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.

Anionic monoazo dyes of the formula (1) in which A represents 1- or 2-naphthyl residue, which is substituted by a total of one or two sulphonic and/or carboxylic acid groups. Rrepresents hydrogen or C-Calkyl, each Dand D, independently of the other, represent either an amino acid residue resulting from removal of a hydrogen atom from the amino group of the amino acid or the residue &#x2014;NRR, in which each Rand R, independently of the other, represent hydrogen, C-Calkyl, C-Calkyl which is substituted by hydroxy, halogen or cyano, phenyl which is unsubstituted or monosubstituted by hydroxy, halogen, SOH, C-Calkyl or C-Calkoxy or alternatively, Rand R, together with the nitrogen atom to which they are connected, complete a saturated 5- or 6-membered ring which may contain, in addition to the nitrogen atom, one nitrogen or oxygen atom and which may be further substituted and n is 0 or 1, a process for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper 

Anionic monoazo dyes

The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper.

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Frankfurt-am-Main, Germany

Michael Lennartz