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1. WO2022003422 - METHODS OF INCREASING THE VOLUME OF A FIBER, SUCH AS MAMMALIAN HAIR, AND/OR ALTERING THE STRUCTURE OF A FIBER WITH A CHITOSAN POLYELECTROLYTE COMPLEX

Publication Number WO/2022/003422
Publication Date 06.01.2022
International Application No. PCT/IB2021/000452
International Filing Date 30.06.2021
IPC
A61K 8/73 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
73Polysaccharides
A61K 8/34 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
33containing oxygen
34Alcohols
A61K 8/81 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
72containing organic macromolecular compounds
81obtained by reactions involving only carbon-to-carbon unsaturated bonds
A61K 8/41 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
40containing nitrogen
41Amines
A61K 8/65 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
18characterised by the composition
30containing organic compounds
64Proteins; Peptides; Derivatives or degradation products thereof
65Collagen; Gelatin; Keratin; Derivatives or degradation products thereof
A61Q 5/12 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
QSPECIFIC USE OF COSMETICS OR SIMILAR TOILET PREPARATIONS
5Preparations for care of the hair
12Preparations containing hair conditioners
Applicants
  • HENKEL IP & HOLDING GMBH [DE]/[DE]
Inventors
  • SAVAIDES, Andrew
  • TASKER, Rushi
  • VAIDYA, Mona
  • MARTICH, Jasmine
Priority Data
16/917,08730.06.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) METHODS OF INCREASING THE VOLUME OF A FIBER, SUCH AS MAMMALIAN HAIR, AND/OR ALTERING THE STRUCTURE OF A FIBER WITH A CHITOSAN POLYELECTROLYTE COMPLEX
(FR) PROCÉDÉS D'AUGMENTATION DU VOLUME D'UNE FIBRE, TELLE QUE DES CHEVEUX DE MAMMIFÈRE, ET/OU DE MODIFICATION DE LA STRUCTURE D'UNE FIBRE AU MOYEN D'UN COMPLEXE DE POLYÉLECTROLYTE DE CHITOSANE
Abstract
(EN) The invention includes methods of increasing the volume of a fiber by applying to the fiber a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. The fiber is then dried forming a chitosan polyelectrolyte complex on the hair that increases the dimension of the fiber. The fiber may be wet prior to application and may be a mammalian hair. Also included are method of semi-perm anently altering the structure of hair that includes topically applying to hair a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. Also contemplated within the scope of the invention is a hair care polyelectrolyte complex that includes a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a polyanion. Systems for hair treatment are also encompassed within the scope of the invention and include at least two formulations: a first formulation comprising a chitosan cross linked with or complexed to an aldehyde-bearing compound, and a second formulation comprising a polyanion. Such systems may be included in hair care kits.
(FR) L'invention concerne des procédés d'augmentation du volume d'une fibre par application à la fibre d'un chitosane réticulé avec un composé porteur d'aldéhyde ou complexé à celui-ci, et un polyanion. La fibre est ensuite séchée pour former un complexe de polyélectrolyte de chitosane sur les cheveux qui augmente la dimension de la fibre. La fibre peut être mouillée avant l'application et peut être un cheveu de mammifère. L'invention concerne également un procédé de modification semi-permanente de la structure des cheveux qui consiste en l'application topique sur les cheveux d'un chitosane réticulé avec un composé porteur d'aldéhyde ou complexé à celui-ci, et un polyanion. L'invention concerne également un complexe de soin capillaire de polyélectrolyte qui comprend un chitosane réticulé avec un composé porteur d'aldéhyde ou complexé à celui-ci, et un polyanion. L'invention concerne également des systèmes de traitement capillaire qui comprennent au moins deux formulations : une première formulation comprenant un chitosane réticulé avec un composé porteur d'aldéhyde ou complexé à celui-ci, et une seconde formulation comprenant un polyanion. De tels systèmes peuvent être inclus dans des kits de soins capillaires.
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