SG11202105233QA - Method for making silicone hydrogel contact lenses - Google Patents

Method for making silicone hydrogel contact lenses

Info

Publication number
SG11202105233QA
SG11202105233QA SG11202105233QA SG11202105233QA SG11202105233QA SG 11202105233Q A SG11202105233Q A SG 11202105233QA SG 11202105233Q A SG11202105233Q A SG 11202105233QA SG 11202105233Q A SG11202105233Q A SG 11202105233QA SG 11202105233Q A SG11202105233Q A SG 11202105233QA
Authority
SG
Singapore
Prior art keywords
contact lenses
silicone hydrogel
hydrogel contact
making silicone
making
Prior art date
Application number
SG11202105233QA
Inventor
Honghui Lu
Mark Neely
Alice Weimin Liu
Xuxian Niu
Uwe Haken
Original Assignee
Alcon Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Alcon Inc filed Critical Alcon Inc
Publication of SG11202105233QA publication Critical patent/SG11202105233QA/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/0025—Removing impurities from contact lenses, e.g. leaching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00134—Curing of the contact lens material
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/04—Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
    • G02B1/041—Lenses
    • G02B1/043—Contact lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B29D11/00038—Production of contact lenses
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2083/00—Use of polymers having silicon, with or without sulfur, nitrogen, oxygen, or carbon only, in the main chain, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/0058—Liquid or visquous
    • B29K2105/0061—Gel or sol
SG11202105233QA 2018-12-14 2019-12-10 Method for making silicone hydrogel contact lenses SG11202105233QA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201862779706P 2018-12-14 2018-12-14
PCT/IB2019/060628 WO2020121200A1 (en) 2018-12-14 2019-12-10 Method for making silicone hydrogel contact lenses

Publications (1)

Publication Number Publication Date
SG11202105233QA true SG11202105233QA (en) 2021-06-29

Family

ID=69024443

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11202105233QA SG11202105233QA (en) 2018-12-14 2019-12-10 Method for making silicone hydrogel contact lenses

Country Status (5)

Country Link
US (1) US11433630B2 (en)
EP (1) EP3894200B1 (en)
HU (1) HUE061330T2 (en)
SG (1) SG11202105233QA (en)
WO (1) WO2020121200A1 (en)

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760100B1 (en) 1994-09-06 2000-11-14 Ciba Vision Corp Extended wear ophthalmic lens
US6039913A (en) 1998-08-27 2000-03-21 Novartis Ag Process for the manufacture of an ophthalmic molding
US7521519B1 (en) 2000-03-14 2009-04-21 Novartis Ag Organic compounds
CN1419656A (en) 2000-03-24 2003-05-21 诺瓦提斯公司 Crosslinkable or polymerizable prepolymers
US7319133B2 (en) 2005-08-09 2008-01-15 Coopervision, Inc. Contact lens extraction/hydration systems and methods of reprocessing fluids used therein
BRPI0714430A2 (en) 2006-07-12 2013-03-12 Novartis Ag actinically crosslinkable prepolymer, process for its manufacture and soft contact lens
AR064286A1 (en) 2006-12-13 2009-03-25 Quiceno Gomez Alexandra Lorena PRODUCTION OF OPHTHALMIC DEVICES BASED ON POLYMERIZATION BY PHOTOINDUCIDED SCALE GROWTH
CA2671740C (en) 2006-12-13 2015-08-11 Novartis Ag Actinically curable silicone hydrogel copolymers and uses thereof
RU2009138703A (en) 2007-03-22 2011-04-27 Новартис АГ (CH) SILICON-CONTAINING FORPOLYMERS WITH HANGING HYDROPHILIC POLYMERIC CHAINS
EP2129513B1 (en) 2007-03-22 2016-08-03 Novartis AG Prepolymers with dangling polysiloxane-containing polymer chains
US7811503B2 (en) * 2007-04-18 2010-10-12 Coopervision International Holding Company, Lp Devices, assemblies, and methods for extracting extractable materials from polymerized biomedical devices
EP2432808B1 (en) 2009-05-22 2015-10-21 Novartis AG Actinically-crosslinkable siloxane-containing copolymers
US8642712B2 (en) 2009-05-22 2014-02-04 Novartis Ag Actinically-crosslinkable siloxane-containing copolymers
MY178204A (en) * 2009-10-16 2020-10-06 Alcon Inc Apparatus and method for transporting contact lenses through dipping baths
KR102159909B1 (en) 2010-07-30 2020-09-25 알콘 인코포레이티드 Silicone hydrogel lenses with water-rich surfaces
US9250357B2 (en) * 2013-03-15 2016-02-02 Johnson & Johnson Vision Care, Inc. Silicone-containing contact lens having reduced amount of silicon on the surface

Also Published As

Publication number Publication date
HUE061330T2 (en) 2023-06-28
US11433630B2 (en) 2022-09-06
WO2020121200A1 (en) 2020-06-18
US20200189216A1 (en) 2020-06-18
EP3894200B1 (en) 2023-01-04
EP3894200A1 (en) 2021-10-20

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