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1. (WO2018078598) METHOD FOR PRODUCING SURFACE COATED CONTACT LENSES WITH WEARING COMFORT
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Pub. No.: WO/2018/078598 International Application No.: PCT/IB2017/056726
Publication Date: 03.05.2018 International Filing Date: 30.10.2017
IPC:
B29D 11/00 (2006.01) ,G02B 1/04 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
29
WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
D
PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
11
Producing optical elements, e.g. lenses or prisms
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1
Optical elements characterised by the material of which they are made; Optical coatings for optical elements
04
made of organic materials, e.g. plastics
Applicants:
NOVARTIS AG [CH/CH]; Lichtstrasse 35 4056 Basel, CH
Inventors:
BOTHE, Harald; DE
Priority Data:
62/414,90231.10.2016US
Title (EN) METHOD FOR PRODUCING SURFACE COATED CONTACT LENSES WITH WEARING COMFORT
(FR) PROCÉDÉ DE FABRICATION DE LENTILLES DE CONTACT REVÊTUES EN SURFACE À CONFORT D'UTILISATION
Abstract:
(EN) The invention is related to a method for producing silicone hydrogel contact lenses with a stable lubricious hydrogel coating thereon providing a low surface friction. A method of the invention comprises forming a plasma-reactive hydrophilic polymer hybrid base coating having reactive functional groups on a silicone hydrogel contact lens and heating the silicone hydrogel contact lens with the hybrid base coating in an aqueous solution of a water-soluble and thermally crosslinkable hydrophilic polymeric material to form a stable lubricious hydrogel coating thereon.
(FR) La présente invention concerne un procédé de fabrication de lentilles de contact en hydrogel de silicone qui sont recouvertes d'un revêtement lubrifiant en hydrogel stable produisant une faible surface de frottement. Un procédé de l'invention comprend la formation d'un revêtement de base hybride polymère hydrophile réactif au plasma présentant des groupes fonctionnels réactifs sur une lentille de contact en hydrogel de silicone et le chauffage de la lentille de contact en hydrogel de silicone présentant le revêtement de base hybride dans une solution aqueuse d'un matériau polymère hydrophile thermiquement réticulable et soluble dans l'eau pour former sur cette dernière un revêtement lubrifiant en hydrogel stable.
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, 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
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)