The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 01, 1991
Filed:
Jun. 21, 1989
Jean-Pierre Arraudeau, Paris, FR;
Jeanne Patraud, Paris, FR;
Didier Gagnebien, Levallois-Perret, FR;
Gerard Lang, Saint-Gratien, FR;
Alain Malaval, Marly La Ville, FR;
L'Oreal, Paris, FR;
Abstract
These wax-based mascara compositions have cosmetic properties which are improved by the presence, in combination with the waxes, of keratin sulphonic derivatives of formula ##STR1## in which formula K denotes the keratin residue, and M.sup.+ denotes H.sup.+, a cation derived from an alkali metal or magnesium, or N.sup.+ (R).sub.4, the radicals R being identical or different and each denoting H or an alkyl or hydroxyalkyl radical containing at most 4 carbon atoms, the unit A denoting from 3 to 15% by weight of the keratin derivative and being the only modified unit in the protein chain of the keratin. The derivatives of formula (I) act both as a cohesion agent and a thickener, enabling a sheathing to be produced on the eyelashes with immediate adhesion and with a flexible film-forming effect.