Sulfonate-bearing polyamides and their use in hairsetting compositions
AssigneeBASF SE
InventorsJorg Breitenbach, Herbert Fisch, Stefan Stein, Axel Sanner, Karin Sperling-Vietmeier
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Abstract
The use of sulfonate-bearing polyamides which are obtainable from A.sub.1) from 20 to 99 mol % of a monoaminocarboxylic acid having 2 to 12 C atoms or its lactam, A.sub.2) from 0.5 to 40 mol % of a diamine having 2 to 18 C atoms, A.sub.3) from 0.5 to 25 mol % of a sulfonate-bearing dicarboxylic acid having 4 to 12 C atoms, and A.sub.4) from 0 to 35 mol % of a further dicarboxylic acid having 2 to 16 C atoms, as film-forming agents in hairsetting compositions is described.
Claims5
A process for treating hair, which process comprises applying to the hair an effective amount of an aqueous hairsetting composition prepared by first providing a film-forming agent consisting essentially of a sulfonate-bearing polymer obtained from
- A.sub.1) from 29 to 99 mol % of .epsilon.-caprolactam;
- A.sub.2) from 0.5 to 40 mol % of a diamine having 2 to 18 carbon atoms;
- A.sub.3) from 0.5 to 25 mol % of a sulfonate-bearing dicarboxylic acid having 4 to 12 carbon atoms;
- and
- A.sub.4) from 0 to 35 mol % of an additional dicarboxylic acid having 2 to 16 carbon atoms;
- the mol % in each instance being based on the total amount of components A.sub.1) to A.sub.4);
- followed by dispersing the film-forming agent in a member selected from the group consisting of water, an aqueous solution, and an aqueous dispersion.
Dependencies are inferred from the claim text.