SG11201803719RA - Process for manufacturing contact lenses - Google Patents

Abstract

INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property -' Organization International Bureau (43) International Publication Date ..... ..sr.1 29 June 2017(29.06.2017) WIPO I PCT ID Hit (10) WO International 2017/109600 111111111111111111111111111111111111111111001111111111t111111111IIIIII Publication Number Al (51) International Patent Classification: DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, B29D 11/00 (2006.01) HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, (21) International Application Number: MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, PCT/IB2016/056755 OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, (22) International Filing Date: SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, 9 November 2016 (09.11.2016) TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (25) Filing Language: English (84) Designated States (unless otherwise indicated, for every (26) Publication Language: English kind of regional protection available): ARIPO (BW, GH, (30) Priority Data: GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, 62/270,938 22 December 2015 (22.12.2015) US TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, (71) Applicant: NOVARTIS AG [CH/CH]; Lichtstrasse 35, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, 4056 Basel (CH). LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, (72) Inventors: JOBE, Oli; c/o Alcon Research, Ltd., 11460 SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, Johns Creek Parkway, Johns Creek, Georgia 30097 (US). GW, KM, ML, MR, NE, SN, TD, TG). HAKEN, Uwe; c/o Alcon Research, Ltd., 11460 Johns Declarations under Rule 4.17: Creek Parkway, Johns Creek, Georgia 30097 (US). — as to applicant's entitlement to apply for and be granted a (81) Designated States (unless otherwise indicated, for every patent (Rule 4.170) kind AE, AG, AL, AM, of national protection available): as to the applicant's entitlement to claim the priority of the AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, earlier application (Rule 4.17 (iii)) BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, [Continued on next page] (54) Title: PROCESS FOR MANUFACTURING CONTACT LENSES (57) : The invention provides a method of making ophthalmic lenses with an enhanced quality and enhanced by having been treated on back yield achieved using molds V 10 surface of mold with corona discharge technique. The meth- the for cast-molding od comprises steps of obtaining a mold i 2 0 lenses from lens formulation, contact a wherein the mold --- comprises a first mold half having a first molding surface ---- , , and a first back surface, a second mold half having a second ---- molding surface and a second back surface, wherein when \" the first and second mold are configured to receive each ,- lens forming is fonned between other such that a cavity the first molding surface and the second molding surface and 4............ 40 applying a corona discharge on one of the first and second back surfaces so that the molding surface of the mold with back has an average water contact angle the treated surface smaller than the molding surface of the mold with untreated 50 mold by about 0.1 degrees to about 6 degrees. R0 1-1 .4t C:: , o FIG, c, O 1-1 N 1-1 O N O WO 2017/109600 Al IMEDIMOMMIONEMMIOMOIONE10110010110MOMMIE Published: — with international search report (Art. 21(3))