Basf Se Corporation

Basf Aktiengesellschaft

Kati Schmidt

Reinhold J Leyrer

Marcus Guzmann

Dieter Hannu Boeckh

Alfred Oftring

Karl Siemensmeyer

Werner Bertleff

Roland Ettl

Stephan Hueffer

Thomas Ostrowski

Marta Reinoso Garcia

Roland Reichenbach-Klinke

Stefan Friedrich

Björn Langlotz

Manfred Schuhbeck

Thomas Pfeuffer

Yulia Fogel

Peter Gaeberlein

Andrea Orleans

Thomas Schmidt

Michael Klemens Mueller

Marcus Rösch

Juergen Detering

Matthias Rauls

Paul Klingelhoefer

Kathrin Michl

Markus Hartmann

Christoph Hamers

Markus Rösch

Wolfgang Schrepp

Carsten Sueling

Torben Adermann

Frank Jaekel

Jens Rieger

Michael Gotsche

Gazi Tuerkoglu

Michael Schoenherr

Valerie Andre

Volker Klock

Christofer Arisandy

Tobias Urban

Karl Häberle

Helmut Meffert

Somnath Shivaji Kadam

Andreas Senf

Johannes Felix Haus

Ralf NÖRENBERG

Process for manufacturing granules or powders comprising the steps of (a) providing an aqueous solution or slurry of (A) at least one chelating agent according to general formula (I a) [CH—CH(COO)—N(CH—COO)]MH(I a) wherein M is selected from alkali metal cations and ammonium, same or different, and x is in the range of from 0.01 to 1.0 or (I b) [OOC—CHCH—CH(COO)—N(CH—COO)]MH(I b) wherein M is as defined above, and x in formula (I b) is in the range of from 0.01 to 2.0, and (B) at least one polymer selected from (B1) polyaspartates with an average molecular weight Min the range of from 1,000 to 20,000 g/mole, and (B2) copolymers comprising, in copolymerized form, (α) at least one ester of an ethylenically unsaturated mono- or dicarboxylic acid, and (β) at least one ethylenically unsaturated N-containing monomer, and (b) spray drying or granulating said solution or slurry.

Granules or powders and methods for their manufacture

A process for making a granule containing (A) at least one chelating agent selected from alkali metal salts of methyl glycine diacetic acid (MGDA) and of iminodisuccinic acid (IDS), and, optionally, (B) at least one homo- or copolymer of (meth) acrylic acid, partially or fully neutralized with alkali, the process including the steps of (a) providing an aqueous solution or slurry containing chelating agent (A) and, if applicable, (co) polymer (B), (b) removing most of the water by spray granulation in a fluidized bed, (c) treating the resultant granule in a vessel of which at least one part rotates around a horizontal axis and wherein the vessel is selected from paddle mixers, free-fall mixers and plough share mixers.

Granules of MGDA and (meth)acrylic acid homo- or co-polymer; process for making the same

Mixture of L- and D-enantiomers of methyl glycine diacetic acid (MGDA) or its respective mono-, di or trialkali metal or mono-, di- or triammonium salts, said mixture containing predominantly the respective L-isomer with an enantiomeric excess (ee) in the range of from 10 to 75%.

Mixtures of MGDA enantiomers, and process for making such mixtures

Water-soluble, hydrophobically associating copolymers which comprise new types of hydrophobically associating monomers. The monomers comprise an ethylenically unsaturated group and a polyether group with block structure comprising a hydrophilic polyalkylene oxide block which consists essentially of ethylene oxide groups, and a terminal, hydrophobic polyalkylene oxide block which consists of alkylene oxides with at least 4, preferably at least 5 carbon atoms.

Hydrophobically associating copolymers

The invention relates to copolymers which contain a) at least 15% by weight units of an ethylenically unsaturated carboxylic acid, b) at least 15% by weight units of a C-C-alkylacrylats, c) less than 5% by weight units of methyl methacrylate, and are used as thickeners in liquid textile detergents. The copolymers can additionally contain units of a non-ionic ethylenically unsaturated surfactant monomer that are incorporated by polymerization. The thickeners are characterized by high thickening action, high shear thinning and low graying of the laundry after the washing process.

Use of a copolymer as thickener in liquid detergents having lower graying tendency

An aqueous dispersion of a copolymer with copolymerized units a) of at least one ethylenically unsaturated carboxylic acid, b) of at least one nonionic ethylenically unsaturated surfactant monomer, c) of at least one C-C-alkyl methacrylate, d) of at least one C-C-alkyl acrylate, where the alkyl chain length averaged over the number of alkyl groups of the alkyl acrylate is 2.1 to 4.0, is described. Following neutralization with alkali, the dispersion serves as associative thickener, in particular for liquid detergent and cleaner formulations. The thickeners are characterized by high transparency and high thickening effect coupled with high shear dilution.

Associative thickener dispersion

A method is described for producing an aqueous thickener dispersion from a monomer composition made of at least one ethylenically unsaturated carboxylic acid and at least one ethylenically unsaturated hydrophobic monomer, The monomer composition preferably also comprises an associative monomer. The method avoids disadvantages of batch polymerization, such as inadequate batch-to-batch reproducibility and safety problems.

Method for producing a thickener dispersion

The invention relates to the use of polyacrylic acids which contain organic terminal groups containing sulphur, comprising at least two carbon atoms, having an average molecular weight Mof 5 000-30 000 g/mol and which are at least partially neutralized by a base which is selected from the group of alkali hydroxides and ammonia as auxiliary agents for wet grinding of calcium carbonate. The invention also relates to fine particle aqueous suspensions of calcium carbonate which are produced by wet grinding of calcium carbonate in the presence of said polyacrylic acids.

Use of polyacrylic acids as grinding aids for calcium carbonate

A process for the soil release treatment of surfaces of textile and nontextile materials, in which cationically modified hydrophilic nanoparticles based on crosslinked polymers of

Treatment method, which promotes the removal of dirt, for the surfaces of textiles and non-textiles

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Ludwigshafen, Germany

Kati Schmidt