Basf Aktiengesellschaft

Rainer Blankenburg

Axel Sanner

Volker Schehlmann

Stephan Kothrade

Brigitta Huckestein

Karl Kolter

Herbert Helfert

Karin Sperling-Vietmeier

Karin Sperling

Katrin Zeitz

Reinhold Dieing

Wolfgang M&uuml;ller

Iris Peters

Hairsetting compositions

Use of polymers containing polysiloxane for cosmetic formulations

A process for preparing highly concentrated aqueous solutions of low molecular mass homopolymers of N-vinylpyrrolidone by free-radical solution polymerization in an aqueous medium with H,O,as initiator comprises carrying out the polymerization in the presence of from 0.1 to 30% by weight, based on N-vinylpyrrolidone, of a polymerization regulator which is selected from the group consisting of C,-C,-alkanols, hydroxylamine salts and water-soluble compounds containing sulfur in bonded form.

Preparation of low molecular mass homopolymers of N-vinylpyrrolidone

Hair setting lotion which are not subject to hydrolysis and which are made up of A) 0.5-20% by weight of a nonionic or anionic homo- or copolymer of at least 70% by weight of N-vinylcaprolactam (polymer A), and B) 0.5-20% by weight of a further film-forming polymer (polymer B), selected from the group consisting of polyamides, polyurethanes, and homo- and copolymers of monoolefinically unsaturated monomers.

Hair setting lotions

An aqueous copolymer dispersion is prepared by free-radical emulsion co-polymerization of a monomer mixture of

Aqueous copolymer dispersions of water-soluble monomers with N-vinyl

The present invention relates to a novel process for preparing water-soluble copolymers of at least one water-soluble N-vinyllactam of the formula I ##STR1## where n=1 or 2, and at least one hydrophobic comonomer having a water-solubility of 1 to 85 g/l, by free-radical polymerization in aqueous solution.

Preparation of water-soluble copolymers of at least one water-soluble

A process for the preparation of low-hydrazine polymers based on basic vinyl monomers by free-radical solution polymerization in aqueous medium in the presence, as compound which forms free radicals, of an azo compound which has alkoxycarbonyl groups on the carbon atoms adjacent to the azo group.

Preparation of polymers based on basic vinyl monomers

Copolymers which have K values of from 30 to 50 are obtainable by free radical solution polymerization of

Soluble copolymers for hair cosmetics

Chemical impurities contained in N-vinylpyrrolid-2-one are bound by a process in which the anhydride of an organic carboxylic acid is added to the crude N-vinylpyrrolid-2-one.

Growing community of inventors

Ludwigshafen, Germany

Rainer Blankenburg