Basf Se Corporation

Basf Aktiengesellschaft

Thomas Heidenfelder

Helmut B Witteler

Thomas W&uuml;nsch

Kristin Tiefensee

Gunnar Schornick

Thorsten Habeck

Frank Klippel

Walter Bertkau

Alexander Göthlich

Michael Schoenherr

Manfred Appel

Frank Mrzena

Thomas Wünsch

Gerhard Wagenblast

Alfred Oftring

Robert Baumann

Karl-Heinz Schumacher

Marcus Guzmann

Volker Schehlmann

Thomas Pfeiffer

Thomas Subkowski

Frank Dietsche

Ulf Baus

Michael Ehle

Hans-Peter Seelmann-Eggebert

Claus Bollschweiler

Jürgen Detering

Hermann Seyffer

Paul Klingelhoefer

Konrad Roschmann

Robert Heinz

Markus Christian Biel

Michael Schönherr

Wilma M Dausch

Marvin Karos

Axel Franzke

Frank-Olaf Mähling

Hans-Georg Lemaire

Monica Fernandez Gonzalez

Valerie Andre

Guido Vandermeulen

Tanja Seebeck

Ullrich Menge

Dietrich Fehringer

Markus Hickl

Alexander Goethlich

Bernd Laubusch

Lars Kissau

Thomas Wuensch

Uwe Ossmer

Andreas Fechtenkötter

Jens Haas

Fabio Nicolini

Michael Dornbusch

Ulrich Menge

A process for the preparation of a powder comprising one or more complexing agent salts of the general formula comprises atomizing an aqueous solution comprising the one or more complexing agent salts in the presence of a crystalline fine dust of the same complexing agent salts and a drying step, wherein the concentration of the one or more complexing agent salt is from 10 to 80% by weight, based on the total weight of the aqueous solution, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, and the fraction of the crystalline fine dust is from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.

Process for the preparation of a powder comprising one or more complexing agent salts

Aqueous leachant compositions and processes for using the same comprising: (a) providing a metal-containing compound; and (b) subjecting the metal-containing compound to an acid digestion comprising contacting the metal-containing compound with an aqueous leachant; wherein the aqueous leachant comprises a mixture selected from the group consisting of: (i) sulfuric acid and one or more alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of alkanesulfonic acid to sulfuric acid of 1:1000 to 1:1; (ii) sulfuric acid and one or more salts of alkanesulfonic acids having alkane moieties selected from the group consisting of propyl, ethyl and methyl groups, at a weight ratio of salt of alkanesulfonic acid to sulfuric acid of 1:9 to 1:99.

Process for the acid digestion of metal-containing compounds

Copolymers comprising as comonomers in copolymerized form: 

Copolymers, method for producing them and their use for treating surfaces

A multilayered composite or coated substrate, comprising compounds of which at least 40% by weight are composed of alpha-amino acids linked via peptide bonds as adhesion promoters between at least two adjacent layers of the composite or between the coating and the substrate.

Use of polypeptides in the form of adhesive agents

The present invention relates to a process for preparing aminopolycarboxylates proceeding from an amino acid which, in a first process step is reacted with ethylene oxide to give an intermediate mixture comprising the corresponding dialkanolamine, and then the intermediate mixture, in a second process step is converted catalytically using a base to the corresponding aminopolycarboxylate, wherein the amino acid, before the reaction with ethylene oxide in the first process step, is supplied to a partial neutralization with 0.70 to 0.99 equivalent of base per acid group, or, in the first process step, an amino acid which has already been partly neutralized with 0.70 to 0.99 equivalent of base per acid group is used.

Process for preparing aminopolycarboxylates proceeding from amino acids

A process for the preparation of a spray-dried powder containing at least one glycine-N,N-diacetic acid compound of a formula MOOC&#x2014;CHR&#x2014;N(CHCOOM), where R is a C-alkyl and M is an alkali metal, the process including: preparing an aqueous solution containing the glycine-N,N-diacetic acid compound; concurrently passing the aqueous solution and air into a spray-drying apparatus; atomizing the aqueous solution by feeding the aqueous solution onto a rotating disk or by compressing the aqueous solution with a pump to a pressure of &#x2267;20 bar absolute, to obtain fine liquid droplets; and drying the droplets, to obtain the spray-dried powder, where a temperature gradient between the aqueous solution and the air is in a range from 70 to 350&#xb0; C., and a content of the glycine-N,N-diacetic acid compound in the aqueous solution is &#x2267;84% by weight, based on a total weight of the dry mass.

Process for the preparation of a spray powder comprising one or more glycine-N,N-diacetic acid derivatives and use of the spray powder for producing compression agglomerates

Process for passivating metallic surfaces, and a preparation suitable for implementing the process, comprising at least water, an acid, and a copolymer of functionalized (meth)acrylic esters, monomers containing phosphoric and/or phosphonic acid groups, monomers having COOH groups, and, if appropriate, further monomers. Copolymer which comprises said monomers.

Method of passivating metallic surfaces by means of copolymers having phosphoric acid and/or phosphonic acid groups

The present invention relates to a composition for coating metallic surfaces, comprising a binder component; a corrosion inhibitor polymer based on an ethylenically monocarboxylic and dicarboxylic acid and, if appropriate, further ethylenical monomers, a solvent component, and, if appropriate, crosslinkable components, and also pigment/filler components. The invention further relates to processes for its preparation and also to methods of coating a metallic surface using the composition, to coated metallic surfaces thus obtained, and to the use of the composition as a primer, particularly in coil coating or in atmospheric corrosion control. After drying, the applied layer preferably has a thickness of at least 3.1 &#x3bc;m and is therefore thicker than a typical pretreatment layer.

Polymer composition for corrosion protection

Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.

Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes

Process for the passivation of metallic surfaces by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and Zn, Ca, Mg or Al ions, said process being in particular a continuous process for the passivation of strip metals.

Method for the passivation of metal surfaces with polymers containing acid groups

Methods of increasing permeability in a carbonatic rock formation, the methods comprising: providing an alkanesulfonic acid; and introducing the alkanesulfonic acid into the carbonatic rock formation.

Methods of increasing permeability in carbonatic rock formations with alkanesulfonic acids

The invention relates to the use of enaminotriazines of the formula I in which the radicals Y, independently of one another, are hydrogen, an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic radical having in each case up to 18 carbon atoms, the radicals X are identical or different, where at least one of the radicals X is the ethenyl radical of the formula II and X may also have the meanings of Y, and where in the formula II the radicals R are identical or different and are cyano, optionally esterified carboxyl, substituted carbonyl, optionally substituted aminocarbonyl, optionally esterified sulfo, substituted sulfonyl or optionally esterified phosphono, and where two adjacent radicals R may optionally form a ring and the radicals R' are identical or different and are hydrogen, an optionally substituted aliphatic, cycloaliphatic or aromatic radical having in each case up to 18 carbon atoms, as UV filters in cosmetic or pharmaceutical preparations for protecting human skin or human hair against solar rays, alone or together with compounds which absorb in the UV region and which are known per se for cosmetic preparations.

Cosmetic or pharmaceutical preparations which comprise enaminotriazines as light protection agents, and novel enaminotriazines

A stabilizer composition is described and comprises a 2-cyano-3,3-diarylacrylate, a sterically hindered monomeric amine, a sterically hindered phenol and, where appropriate, a chromane derivative and/or an organic phosphite and/or phosphonite. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.

Stabilising composition II

A stabilizer composition is described and comprises a 3-arylacrylate, a polymeric compound with molecular weight at least 2000, bearing, on a polymeric framework, side groups having amine functions, where all of the substituents in the &#x3b1;-position to the amine nitrogen atom are other than hydrogen, and comprises a sterically hindered phenol. The stabilizer composition is particularly suitable for stabilizing thermoplastic polyurethane with respect to light, oxygen, and heat.

Stabilizing composition I

The invention relates to a mixture, comprising (A) 10 to 90 wt. % of at least one Cto Calkyl ester, or Cto Ccycloalkyl ester of 2-cyano-3,3-diphenylacrylic acid and (B) 90 to 10 wt. % of at least one further compound, with at least one UV absorption maximum in the range 280 to 450 nm and structurally different from compound (A). Said mixture is suitable for the protection of human skin from damaging UV radiation and for the protection of coloured textile materials from colour fading.

UV absorbing mixture with textile fiber affinity

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Dannstadt-Schauernheim, Germany

Thomas Heidenfelder