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1. WO2020227814 - MICROPARTICLES COMPRISING CELLULOSE NANOCRYSTALS AGGREGATED WITH PROTEINS AND COSMETIC USES THEREOF

Publication Number WO/2020/227814
Publication Date 19.11.2020
International Application No. PCT/CA2020/050603
International Filing Date 06.05.2020
IPC
A61K 8/73 2006.01
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 47/38 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
36Polysaccharides; Derivatives thereof, e.g. gums, starch, alginate, dextrin, hyaluronic acid, chitosan, inulin, agar or pectin
38Cellulose; Derivatives thereof
A61K 47/42 2017.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
47Medicinal preparations characterised by the non-active ingredients used, e.g. carriers or inert additives; Targeting or modifying agents chemically bound to the active ingredient
30Macromolecular organic or inorganic compounds, e.g. inorganic polyphosphates
42Proteins; Polypeptides; Degradation products thereof; Derivatives thereof, e.g. albumin, gelatin or zein
A61K 8/02 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
A61K 8/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
04Dispersions; Emulsions
A61K 8/06 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
KPREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8Cosmetics or similar toilet preparations
02characterised by special physical form
04Dispersions; Emulsions
06Emulsions
Applicants
  • ANOMERA INC. [CA]/[CA]
Inventors
  • ANDREWS, Mark P.
  • MORSE, Timothy
  • RAK, Monika
  • WU, Junqi
  • HU, Zhen
Agents
  • LAVERY, DE BILLY, LLP
Priority Data
62/846,28110.05.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MICROPARTICLES COMPRISING CELLULOSE NANOCRYSTALS AGGREGATED WITH PROTEINS AND COSMETIC USES THEREOF
(FR) MICROPARTICULES COMPORTANT DES NANOCRISTAUX DE CELLULOSE AGRÉGÉS AVEC DES PROTÉINES ET LEURS UTILISATIONS COSMÉTIQUES
Abstract
(EN)
Proteinaceous cellulose microparticles are provided. These microparticles comprise cellulose nanocrystals and one or more peptide, one or more protein, or a mixture thereof, wherein the nanocrystals and the peptide(s) and/or protein(s) are aggregated together to form the microparticles. In embodiments, the microparticles comprise silk fibroin and advantageously are hydrophobic and lipophilic. There are also provided cosmetic preparations comprising these microparticles. In advantageous embodiments, these cosmetic preparations comprise a water-in-oil emulsion or a lipophilic medium. Finally, there are also provided methods of producing the microparticles.
(FR)
L'invention concerne des microparticules de cellulose à base de protéines. Ces microparticules comportent des nanocristaux de cellulose et un ou plusieurs peptides, une ou plusieurs protéines, ou un mélange de ceux-ci, les nanocristaux et le ou les peptides et/ou la ou les protéines étant agrégés pour former les microparticules. Dans des modes de réalisation, les microparticules comportent de la fibroïne de soie, et, ce qui est un avantage, sont hydrophobes et lipophiles. L'invention concerne également des préparations cosmétiques comportant ces microparticules. Dans des modes de réalisation qui présentent des avantages, ces préparations cosmétiques comportent une émulsion eau dans huile ou un milieu lipophile. Enfin, l'invention concerne également des procédés de fabrication de ces microparticules.
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