ATE443606T1 - Entformungsverfahren - Google Patents

Entformungsverfahren

Info

Publication number
ATE443606T1
ATE443606T1 AT04764263T AT04764263T ATE443606T1 AT E443606 T1 ATE443606 T1 AT E443606T1 AT 04764263 T AT04764263 T AT 04764263T AT 04764263 T AT04764263 T AT 04764263T AT E443606 T1 ATE443606 T1 AT E443606T1
Authority
AT
Austria
Prior art keywords
removal process
mold
contact lens
lens
mold part
Prior art date
Application number
AT04764263T
Other languages
English (en)
Inventor
Axel Heinrich
Bernhard Seiferling
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
Application granted granted Critical
Publication of ATE443606T1 publication Critical patent/ATE443606T1/de

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
    • B29D11/00211—Demoulding, e.g. separating lenses from mould halves using heating means
    • 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0003—Discharging moulded articles from the mould
    • 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
    • B29C39/22—Component parts, details or accessories; Auxiliary operations
    • B29C39/36—Removing moulded articles
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Mechanical Engineering (AREA)
  • Eyeglasses (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
AT04764263T 2003-08-19 2004-08-18 Entformungsverfahren ATE443606T1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP03018812 2003-08-19
PCT/EP2004/009277 WO2005016615A1 (en) 2003-08-19 2004-08-18 Demolding process

Publications (1)

Publication Number Publication Date
ATE443606T1 true ATE443606T1 (de) 2009-10-15

Family

ID=34178388

Family Applications (1)

Application Number Title Priority Date Filing Date
AT04764263T ATE443606T1 (de) 2003-08-19 2004-08-18 Entformungsverfahren

Country Status (6)

Country Link
US (1) US20050056955A1 (de)
EP (1) EP1658167B1 (de)
AT (1) ATE443606T1 (de)
DE (1) DE602004023306D1 (de)
SG (1) SG145755A1 (de)
WO (1) WO2005016615A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080053490A1 (en) * 2006-09-01 2008-03-06 Bausch & Lomb Incorporated Method for hydrating a contact lens
CN101563213B (zh) * 2006-12-21 2013-07-24 博士伦公司 用于将后模具部分和前模具部分之间的空腔中模制的透镜脱开(release)的装置和方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB521093A (en) * 1938-08-09 1940-05-13 Gyoergy Forro Improvements in or relating to the manufacture of hollow articles by dipping or moulding
JPS6186259A (ja) * 1984-10-05 1986-05-01 日産自動車株式会社 表面硬化膜を備えたプラスチツク部材
US4985186A (en) * 1986-04-11 1991-01-15 Canon Kabushiki Kaisha Process for producing optical element
IL113826A0 (en) * 1994-06-10 1995-08-31 Johnson & Johnson Vision Prod Method and apparatus for demolding ophthalmic contact lenses
US5850107A (en) * 1994-06-10 1998-12-15 Johnson & Johnson Vision Products, Inc. Mold separation method and apparatus
JPH09136327A (ja) * 1995-11-15 1997-05-27 Makoto Mori モ−ルドによるプラスチック成形品の離型方法とその装置
AU706496B2 (en) * 1995-11-21 1999-06-17 Johnson & Johnson Vision Products, Inc. Infra-red heat source for demolding contact lenses
US6939487B1 (en) * 2000-10-13 2005-09-06 Novartis A.G. Deblocking contact lenses

Also Published As

Publication number Publication date
WO2005016615A1 (en) 2005-02-24
DE602004023306D1 (de) 2009-11-05
US20050056955A1 (en) 2005-03-17
SG145755A1 (en) 2008-09-29
EP1658167A1 (de) 2006-05-24
EP1658167B1 (de) 2009-09-23

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties