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1. (WO2017151584) ENCAPSULATION OF PEROXIDES FOR SKIN APPLICATIONS
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Pub. No.: WO/2017/151584 International Application No.: PCT/US2017/019894
Publication Date: 08.09.2017 International Filing Date: 28.02.2017
IPC:
A61K 8/38 (2006.01) ,A61K 31/192 (2006.01) ,A61K 31/203 (2006.01) ,A61K 31/327 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
8
Cosmetics or similar toilet preparations
18
characterised by the composition
30
containing organic compounds
33
containing oxygen
38
Percompounds, e.g. peracids
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
185
Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
19
Carboxylic acids, e.g. valproic acid
192
having aromatic groups, e.g. sulindac, 2-aryl-propionic acids, ethacrynic acid
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
185
Acids; Anhydrides, halides or salts thereof, e.g. sulfur acids, imidic, hydrazonic or hydroximic acids
19
Carboxylic acids, e.g. valproic acid
20
having a carboxyl group bound to an acyclic chain of seven or more carbon atoms, e.g. stearic, palmitic or arachidic acid
203
Retinoic acids
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
K
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
31
Medicinal preparations containing organic active ingredients
327
Peroxy compounds, e.g. hydroperoxides, peroxides, peroxy acids
Applicants:
ARKEMA, INC. [US/US]; 900 First Avenue King of Prussia, PA 19406, US
Inventors:
DLUZNESKI, Peter R.; US
SALVADOR, Tomas; US
KOZEL, Thomas H.; US
Agent:
MORREALE, Lynn B.; US
BOYD, Steven D.; US
ROLAND, Thomas; US
Priority Data:
62/303,41604.03.2016US
Title (EN) ENCAPSULATION OF PEROXIDES FOR SKIN APPLICATIONS
(FR) ENCAPSULATION DE PEROXYDES POUR APPLICATIONS CUTANÉES
Abstract:
(EN) Encapsulated peroxide particles inhibit skin inflammation. A method of encapsulating a solid peroxide comprises dispersing solid peroxide particles (e.g., benzoyl peroxide) in an aqueous dispersion of fatty acid salt to form a peroxide/fatty acid salt dispersion, wherein the peroxide particles have a mean particle size (D50) of 10 µm or less; and subsequently encapsulating the solid peroxide particles by reacting the one or more monovalent fatty acid salts with one or more multivalent salts of calcium, magnesium, aluminum, silver, and/or zinc, thereby forming encapsulated peroxide particles.
(FR) La présente invention concerne des particules de peroxyde encapsulé qui inhibent l'inflammation de la peau. Un procédé d'encapsulation d'un peroxyde solide comprend la dispersion de particules de peroxyde solide (par exemple, le peroxyde de benzoyle) dans une dispersion aqueuse de sel d'acide gras pour former une dispersion de peroxyde/sel d'acide gras, les particules de peroxyde ayant une taille de particule moyenne (D50) de 10 µm ou moins; et ensuite, l'encapsulation des particules de peroxyde solide par réaction des un ou plusieurs sels d'acides gras monovalents avec un ou plusieurs sels multivalents de calcium, magnésium, aluminium, argent et/ou zinc, de manière à former des particules de peroxyde encapsulé.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)