CA2646659C - Demolding aids for silicone hydrogels and related methods - Google Patents

Demolding aids for silicone hydrogels and related methods Download PDF

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Publication number
CA2646659C
CA2646659C CA2646659A CA2646659A CA2646659C CA 2646659 C CA2646659 C CA 2646659C CA 2646659 A CA2646659 A CA 2646659A CA 2646659 A CA2646659 A CA 2646659A CA 2646659 C CA2646659 C CA 2646659C
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CA
Canada
Prior art keywords
demolding
composition
mold
reactive
lens
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CA2646659A
Other languages
English (en)
French (fr)
Other versions
CA2646659A1 (en
Inventor
Charles A. Francis
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CooperVision International Ltd
Original Assignee
CooperVision International Holding Co LP
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 CooperVision International Holding Co LP filed Critical CooperVision International Holding Co LP
Publication of CA2646659A1 publication Critical patent/CA2646659A1/en
Application granted granted Critical
Publication of CA2646659C publication Critical patent/CA2646659C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B29D11/00192—Demoulding, e.g. separating lenses from mould halves
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • 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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Eyeglasses (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Silicon Polymers (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
CA2646659A 2006-03-20 2007-03-15 Demolding aids for silicone hydrogels and related methods Active CA2646659C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US78495306P 2006-03-20 2006-03-20
US60/784,953 2006-03-20
PCT/US2007/006562 WO2007109101A1 (en) 2006-03-20 2007-03-15 Demolding aids for silicone hydrogels and related methods

Publications (2)

Publication Number Publication Date
CA2646659A1 CA2646659A1 (en) 2007-09-27
CA2646659C true CA2646659C (en) 2013-05-14

Family

ID=38325431

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2646659A Active CA2646659C (en) 2006-03-20 2007-03-15 Demolding aids for silicone hydrogels and related methods

Country Status (11)

Country Link
US (1) US7799248B2 (enExample)
EP (1) EP1996967A1 (enExample)
JP (1) JP4959783B2 (enExample)
KR (1) KR101351765B1 (enExample)
CN (1) CN101405623A (enExample)
BR (1) BRPI0708968A2 (enExample)
CA (1) CA2646659C (enExample)
MX (1) MX2008011877A (enExample)
MY (1) MY144167A (enExample)
TW (1) TW200806449A (enExample)
WO (1) WO2007109101A1 (enExample)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7968018B2 (en) * 2007-04-18 2011-06-28 Coopervision International Holding Company, Lp Use of surfactants in extraction procedures for silicone hydrogel ophthalmic lenses
AU2011284474B8 (en) * 2010-07-30 2014-10-02 Coopervision International Limited Ophthalmic device molds formed from water-soluble vinyl alcohol copolymer, ophthalmic devices molded therein, and related methods
SG192245A1 (en) * 2011-02-28 2013-09-30 Coopervision Int Holding Co Lp Silicone hydrogel contact lenses
US9156934B2 (en) * 2011-12-23 2015-10-13 Johnson & Johnson Vision Care, Inc. Silicone hydrogels comprising n-vinyl amides and hydroxyalkyl (meth)acrylates or (meth)acrylamides
US9457522B2 (en) 2013-02-26 2016-10-04 Coopervision International Holding Company, Lp Methods and apparatus useful in manufacturing lenses
GB2533919B (en) * 2014-12-19 2017-06-28 Coopervision Int Holding Co Lp Method and apparatus for demolding contact lens
TWI541291B (zh) * 2015-06-18 2016-07-11 明基材料股份有限公司 隱形眼鏡材料、隱形眼鏡的製造方法與由此方法所製造出之隱形眼鏡
TWI551616B (zh) * 2016-01-05 2016-10-01 望隼科技股份有限公司 一種應用於眼科物件之矽水凝膠的製造方法
JPWO2018212063A1 (ja) * 2017-05-19 2020-03-19 東レ株式会社 コンタクトレンズ用組成物、およびコンタクトレンズとその製造方法
GB2629223B (en) * 2023-07-20 2025-04-30 Coopervision Int Ltd Tinted silicone hydrogel contact lens formulations and contact lenses

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US3916033A (en) 1971-06-09 1975-10-28 High Voltage Engineering Corp Contact lens
US4159292A (en) 1977-05-25 1979-06-26 Neefe Optical Lab. Inc. Method of controlling the release of a cast plastic lens from a resinous lens mold
EP0362137A3 (en) 1988-09-28 1991-09-04 Ciba-Geigy Ag Molded polymers with hydrophilic surfaces, and process for making them
US5770119A (en) 1992-09-18 1998-06-23 Johnson & Johnson Vision Products, Inc. Laser demolding method
US5837314A (en) 1994-06-10 1998-11-17 Johnson & Johnson Vision Products, Inc. Method and apparatus for applying a surfactant to mold surfaces
US5542978A (en) 1994-06-10 1996-08-06 Johnson & Johnson Vision Products, Inc. Apparatus for applying a surfactant to mold surfaces
IL113826A0 (en) 1994-06-10 1995-08-31 Johnson & Johnson Vision Prod Method and apparatus for demolding ophthalmic contact lenses
US5760100B1 (en) 1994-09-06 2000-11-14 Ciba Vision Corp Extended wear ophthalmic lens
US5690865A (en) 1995-03-31 1997-11-25 Johnson & Johnson Vision Products, Inc. Mold material with additives
US5674557A (en) 1995-09-29 1997-10-07 Johnson & Johnson Vision Products, Inc. Method for transiently wetting lens molds in production of contact lens blanks to reduce lens hole defects
US5779943A (en) 1996-03-19 1998-07-14 Johnson & Johnson Vision Products, Inc. Molded polymeric object with wettable surface made from latent-hydrophilic monomers
US5693268A (en) 1996-04-01 1997-12-02 Johnson & Johnson Vision Products, Inc. Wedge demolding of cast lens mold assemblies
US5820895A (en) 1996-06-04 1998-10-13 Johnson & Johnson Vision Products, Inc. Conductive probe for heating contact lens mold assemblies during demolding
JPH10315252A (ja) * 1997-05-20 1998-12-02 Menicon Co Ltd レンズブランク成形用型及びコンタクトレンズの製造方法
US7052131B2 (en) 2001-09-10 2006-05-30 J&J Vision Care, Inc. Biomedical devices containing internal wetting agents
US6869549B2 (en) 1999-05-05 2005-03-22 Johnson & Johnson Vision Care, Inc. Method and mold for making ophthalmic devices
BR0012307A (pt) 1999-06-11 2002-03-12 Bausch & Lomb Moldes para lente com revestimentos protetores para produção de lentes de contato e outros produtos oftálmicos
US6638451B1 (en) * 1999-08-31 2003-10-28 Novartis Ag Plastic casting molds
WO2001044861A1 (en) * 1999-12-16 2001-06-21 Asahikasei Aime Co., Ltd. Soft contact lens capable of being worn for a long period
US6774178B2 (en) 2001-01-05 2004-08-10 Novartis Ag Tinted, high Dk ophthalmic molding and a method for making same
US6663801B2 (en) 2001-04-06 2003-12-16 Johnson & Johnson Vision Care, Inc. Silicon carbide IR-emitter heating device and method for demolding lenses
JP4217886B2 (ja) * 2003-06-25 2009-02-04 Ｊｓｒ株式会社 感放射線性屈折率変化性組成物、パターン形成法および光学材料
JP4292985B2 (ja) * 2003-12-25 2009-07-08 Ｊｓｒ株式会社 感放射線性組成物、マイクロレンズとその形成方法および液晶表示素子
US20050205451A1 (en) 2004-03-18 2005-09-22 Brown-Skrobot Susan K Contact lens packages
MX2007002202A (es) 2004-08-27 2007-10-10 Asahikasei Aime Co Ltd Lentes de contacto de hidrogel de silicona.
US20060071356A1 (en) 2004-10-04 2006-04-06 Kevin Beebe Method for separating excess material from a lens mold
US20060097415A1 (en) 2004-11-05 2006-05-11 Watterson Robert J Jr Methods of demolding ophthalmic lenses
US9102110B2 (en) 2005-08-09 2015-08-11 Coopervision International Holding Company, Lp Systems and methods for removing lenses from lens molds
US7320587B2 (en) 2005-08-09 2008-01-22 Cooper Vision, Inc. Contact lens molds and systems and methods for producing same
US7390863B2 (en) * 2005-08-30 2008-06-24 Bausch & Lomb Incorporated Polymeric materials having enhanced ion and water transport property and medical devices comprising same

Also Published As

Publication number Publication date
WO2007109101A1 (en) 2007-09-27
US20070216045A1 (en) 2007-09-20
BRPI0708968A2 (pt) 2011-06-28
TW200806449A (en) 2008-02-01
JP4959783B2 (ja) 2012-06-27
JP2009530686A (ja) 2009-08-27
CN101405623A (zh) 2009-04-08
KR20090012312A (ko) 2009-02-03
US7799248B2 (en) 2010-09-21
MX2008011877A (es) 2008-11-28
EP1996967A1 (en) 2008-12-03
CA2646659A1 (en) 2007-09-27
KR101351765B1 (ko) 2014-01-14
MY144167A (en) 2011-08-15

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