Patent SG-11201900638P-A (SG)
Title: Colored hydrogel contact lenses with lubricious coating thereon
Inventor: TUCKER ROBERT CAREY
IPC: G02B1/04
Filed: 2017-09-14
Abstract: Percent coverag e C Control lens - - Testing lens 100 150 Time-sec (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 29 March 2018 (29.03.2018) WI P0 I PCT °Ens °nolo omm loomimionoluom oimIE (10) International Publication Number WO 2018/055489 Al (51) International Patent Classification: G02B 1/04 (2006.01) B29D 11/00 (2006.01) (21) International Application Number: PCT/IB2017/055574 (22) International Filing Date: 14 September 2017 (14.09.2017) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 62/396,844 20 September 2016 (20.09.2016) US (71) Applicant: NOVARTIS AG [CH/CH]; Lichtstrasse 35, 4056 Basel (CH). (72) Inventors: TUCKER, Robert Carey; c/o Alcon Research, Ltd., 11460 Johns Creek Parkway, Johns Creek, Georgia 30097 (US). PRUITT, John Dallas; c/o Alcon Research, Ltd., 11460 Johns Creek Parkway, Johns Creek, Georgia 30097 (US). QIU, Yongxing; c/o Alcon Research, Ltd., 11460 Johns Creek Parkway, Johns Creek, Georgia 30097 (US). (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, = (54) Title: COLORED HYDROGEL CONTACT LENSES WITH LUBRICIOUS COATING THEREON Figure 1 (57) : The invention is generally related to colored contact lenses which comprise a hydrogel lens body having an opaque color image therein and/or thereon and a durable lubricious coating thereon. The coating comprises an anchoring layer of a polyanionic polymer having carboxyl groups and a hydrogel layer which is derived from a hydrophilic polymeric material having azetidinium groups and is covalently attached onto the anchoring layer of the polyanionic polymer through linkages each formed between one carboxyl group and one azetidinium groups. The colored contact lens has a surface lubricity better than the lubricity of the non-silicone hydrogel lens body and a friction rating of about 2 or lower after 7 cycles of manual rubbing. [Continued on next page] WO 2018/055489 Al MIDEDIMOMOIDEIREEMOOMMEMINIVEHMOVOIMIE 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). Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(11)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: with international search report (Art. 21(3)) before the expiration of the time limit for amending the claims and to be republished in the event of receipt of amendments (Rule 48.2(h))