Patent SG-11201811035T-A (SG)
Title: Core-composite shell microcapsules
Inventor: DARDELLE GREGORY
IPC: A61K8/04
Filed: 2017-06-29
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 04 January 2018 (04.01.2018) W I PO I PCT °Ens OH oI0IIIIIIII11010111OHDIDIIII1111111 ow (10) International Publication Number WO 2018/002214 Al (51) International Patent Classification: B01J 13/10 (2006.01) BO1J 13/20 (2006.01) A61K 8/04 (2006.01) CHB 3/50 (2006.01) B01J 13/12 (2006.01) B01J 13/14 (2006.01) B01J 13/16 (2006.01) (21) International Application Number: Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(ii)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) of inventorship (Rule 4.17(iv)) PCT/EP2017/066116 Published: (22) International Filing Date: with international search report (Art. 21(3)) 29 June 2017 (29.06.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 16177050.8 30 June 2016 (30.06.2016) EP (71) Applicant: FIRMENICH SA [CH/CH]; 1, route des Je- unes PO Box 239, 1211 GENEVA 8 (CH). (72) Inventor: DARDELLE, Gregory; Firmenich SA 1, route des Jeunes, 1211 Geneva 8 (CH). (74) Agent: DUREISSEIX, Valerie; Firmenich SA 1, route des Jeunes, PO Box 239, 1211 Geneva 8 (CH). (81) Designated States (unless otherwise indicated, for every kind of national protection available): 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, JO, 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. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (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), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: CORE-COMPOSITE SHELL MICROCAPSULES (57) : The invention relates to a method for making a core-composite shell microcapsule slurry for the delivery of hydropho- bic active ingredients such as fragrance components of perfume oils. The method includes forming an outer shell by coacervation sur- rounding an internal phase which contains the hydrophobic active ingredient; and forming an inner shell by interfacial polymerization at the interface between the internal phase and the outer shell. The internal phase contains the hydrophobic active ingredient. The mi- crocapsules are typically incorporated in a consumer product wherein the composite shell prevents the hydrophobic active ingredient from release until desired, generally during use of the consumer product.