Basf Se Corporation

Basf Aktiengesellschaft

Marianna Pierobon

Reinhold Schwalm

Karl Kolter

Matthias Bratz

Günter Oetter

Robert Bayer

Tobias Petsch

Ralf Widmaier

Michael Kerber

Hermann Josef Feise

Helmut Meffert

Ates Erk

Son Nguyen Kim

Klemens Mathauer

Rainer Dobrawa

Matthias Laubender

Gabi Winter

Bernhard Fussnegger

Sebastian Koltzenburg

Nathalie Bouillo

Ronald Frans-Maria Lange

Jörg Kreβ

Son Nguyen-Kim

Harald Köhle

Julia Brodersen

Ralf Mar

Peter Hossel

Peter Hössel

Kathrin Meyer-Böhm

Matthias Klüglein

Kathrin Meyer-Boehm

Frank Müller

Simone Schillo

Christian Krüger

Ralf Lachmuth

Hubertus Folttmann

Harald Armbruster

Karl-Otto Heilmann

Jörg Kress

Ronald Frans Maria Lange

Izaskun Manteca Di Zuazo

The present invention relates to aqueous skin or hair cosmetic preparations which comprise at least one polymer A which comprises, in copolymerized form, at least one ester of (meth)acrylic acid, at least one olefinically unsaturated, free-radically polymerizable anionogenic or anionic compound, at least one free-radically polymerizable olefinically unsaturated urethane-group-containing compound which comprises no silicone groups and, if appropriate, further free-radically polymerizable compounds.

Copolymers for cosmetic applications

The present invention relates to aqueous preparations comprising at least one water-soluble or water-dispersible copolymer with cationogenic groups which comprises at least one monomer with at least one protonatable nitrogen atom and at least one further monomer copolymerizable therewith in copolymerized form, and at least one cosmetically acceptable carrier, where the pH of the aqueous preparation has a value in the range from pH 4 to pH 6.

Aqueous preparations comprising at least one water-soluble or water-dispersible copolymer with cationgenic groups

The use of copolymers obtained by free-radical polymerization of a mixture of

Use of a copolymer in the form of a solubiliser for a poorly water-soluble compound

Use of crosslinked polyvinylpyrrolidone with an average particle size of 5-60 &#x3bc;m and a hydration capacity of greater than 7 g/g as tablet disintegrant.

Fine-particle crosslinked polyvinylpyrrolidone as tablet disintegrant

A method for removing residual styrene monomers from co-extrudates comprising polystyrene and water-insoluble, crosslinked polyvinylpyrrolidone, which comprises subjecting an aqueous suspension of the particulate solid co-extrudate to a heat treatment at temperatures of 60 to 99&#xb0; C., the weight ratio of solid co-extrudate to water in the suspension being 1:1.5 to 1:20, and the concentration of the suspension being kept constant during the treatment.

Method for the production of co-extrudates composed of polystyrene and of a crosslinked polyvinylpyrrolidone with reduced residual styrene monomer content

Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.

Method for regenerating a filter aid

Use of copolymers as solubilizers for slightly water-soluble compounds

The present invention relates to a method of producing polymers by free-radical polymerization in solution, wherein the polymerization initiator used is an ethanol-soluble initiator, and the solution polymerization is carried out in an alcoholic solvent which comprises 5 to 50% by weight of water.

Process for preparing acrylate copolymers

Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.

Method for regenerating an auxiliary filtering agent

Process for removal of residual styrene monomers from polystyrene and from blends comprising water-insoluble, crosslinked polyvinylpyrrolidone, via treatment with water, which comprises carrying out the treatment on a particulate solid blend.

Method for producing blends consisting of polystyrene and of a cross-linked polyvinyl pyrrolidone having a reduced styrene residual monomer content

Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.

Method for producing polymer blends suited for use as filters

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Ludwigshafen, Germany

Marianna Pierobon