Patent SG-11201901917R-A (SG)
Title: Use of an ampholyte copolymer as colloidal stabilizer in a process of encapsulating fragrance
Inventor: BLONDEL FRÉDÉRIC
IPC: A61Q19/00
Filed: 2017-09-18
Abstract: INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 22 March 2018 (22.03.2018) WIP0 I PCT omit n OH iolo III ID 111E IIM101101101110 ME (10) International Publication Number WO 2018/050899 A2 (51) International Patent Classification: A61K 8/87 (2006.01) A61Q 19/00 (2006.01) A61K 8/81 (2006.01) A61Q 13/00 (2006.01) A61K 8/11 (2006.01) (21) International Application Number: PCT/EP2017/073518 (22) International Filing Date: 18 September 2017 (18.09.2017) (25) Filing Language: English Published: without international search report and to be republished upon receipt of that report (Rule 48.2(g)) (26) Publication Language: English (30) Priority Data: 16306196.3 19 September 2016 (19.09.2016) EP (71) Applicant: S.P.C.M. SA [FR/FR]; ZAC de Milieux, 42160 ANDREZIEUX BOUTHEON (FR). (72) Inventors: BLONDEL, Frederic; ZAC de Milieux, 42160 ANDREZIEUX BOUTHEON (FR). AUSSANT, Em- manuel; 21 Rue Saint Maur, 75011 PARIS (FR). GUINE- BRETIERE, Sandra; 250 Rue du General Leclerc, 95130 FRANCONVILLE (FR). HARRISON, Ian Michael; 69 Avenue Maurice Berteaux, 78300 POISSY (FR). (74) Agent: DENJEAN, Eric et al.; CABINET LAURENT & CHARRAS, Le Contemporain, 50 Chemin de la Bruyere, 69574 DARDILLY Cedex (FR). (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). * 1 : ) (54) Title: USE OF AN AMPHOLYTE COPOLYMER AS COLLOIDAL STABILIZER IN A PROCESS OF ENCAPSULATING in FRAGRANCE ----. (57) : The invention relates to the use of an ampholyte copolymer as a colloidal stabilizer in the preparation of core-shell microcapsules containing a fragrance, wherein the ampholyte copolymer comprises: - 2 to 99 mol% of cationic monomer having at © least one quaternary ammonium group, - 1 to 98 mol% of acrylic based monomer, - 0 to 97 mol% of non-ionic monomer, and wherein N the ampholyte copolymer has more cationic charges than anionic charges, wherein the cationic charges of the ampholyte copolymer 0 are exclusively due to the at least one quaternary ammonium group of the cationic monomer.