SG11201606335WA - Improved cleaning method for molds used in the manufacturing of silicone hydrogel contact lenses - Google Patents

Improved cleaning method for molds used in the manufacturing of silicone hydrogel contact lenses

Info

Publication number
SG11201606335WA
SG11201606335WA SG11201606335WA SG11201606335WA SG11201606335WA SG 11201606335W A SG11201606335W A SG 11201606335WA SG 11201606335W A SG11201606335W A SG 11201606335WA SG 11201606335W A SG11201606335W A SG 11201606335WA SG 11201606335W A SG11201606335W A SG 11201606335WA
Authority
SG
Singapore
Prior art keywords
manufacturing
contact lenses
cleaning method
silicone hydrogel
hydrogel contact
Prior art date
Application number
SG11201606335WA
Inventor
Harald Bothe
Michael Tretter
Peter Hagmann
Original Assignee
Novartis Ag
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 Novartis Ag filed Critical Novartis Ag
Publication of SG11201606335WA publication Critical patent/SG11201606335WA/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/70—Maintenance
    • B29C33/72—Cleaning
    • B29C33/722—Compositions for cleaning moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
    • B29C39/006—Monomers or prepolymers
    • 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
    • B29D11/0048—Moulds for lenses
    • B29D11/00519—Reusable moulds
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2011/00—Optical elements, e.g. lenses, prisms
    • B29L2011/0016—Lenses
    • B29L2011/0041—Contact lenses
    • 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
SG11201606335WA 2014-03-06 2015-03-04 Improved cleaning method for molds used in the manufacturing of silicone hydrogel contact lenses SG11201606335WA (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201461948812P 2014-03-06 2014-03-06
PCT/EP2015/054456 WO2015132277A1 (en) 2014-03-06 2015-03-04 Improved cleaning method for molds used in the manufacturing of silicone hydrogel contact lenses

Publications (1)

Publication Number Publication Date
SG11201606335WA true SG11201606335WA (en) 2016-09-29

Family

ID=52598767

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201606335WA SG11201606335WA (en) 2014-03-06 2015-03-04 Improved cleaning method for molds used in the manufacturing of silicone hydrogel contact lenses

Country Status (7)

Country Link
US (1) US20150251364A1 (en)
EP (1) EP3113937B1 (en)
CN (1) CN105980124A (en)
HU (1) HUE038505T2 (en)
MY (1) MY177138A (en)
SG (1) SG11201606335WA (en)
WO (1) WO2015132277A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110740855B (en) * 2017-06-07 2021-10-22 爱尔康公司 Method for producing silicone hydrogel contact lenses

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2736365B2 (en) * 1994-10-13 1998-04-02 花王株式会社 Cleaning method and cleaning agent
US7390368B1 (en) * 2007-10-26 2008-06-24 Illinois Tool Works Inc. Aqueous fiber optic cleaner
TWI506333B (en) * 2008-12-05 2015-11-01 Novartis Ag Ophthalmic devices for delivery of hydrophobic comfort agents and preparation method thereof
CA2808462C (en) * 2010-10-06 2016-01-12 Novartis Ag Water-processable silicone-containing prepolymers and uses thereof
SG190442A1 (en) * 2010-12-06 2013-07-31 Novartis Ag Method for making silicone hydrogel contact lenses

Also Published As

Publication number Publication date
EP3113937A1 (en) 2017-01-11
CN105980124A (en) 2016-09-28
US20150251364A1 (en) 2015-09-10
MY177138A (en) 2020-09-08
HUE038505T2 (en) 2018-10-29
EP3113937B1 (en) 2018-02-28
WO2015132277A1 (en) 2015-09-11

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