DE68908763D1 - Verfahren zur Polymerisation von Linsen durch Rotationsgiessen und Vorrichtung zu dessen Durchführung. - Google Patents

Verfahren zur Polymerisation von Linsen durch Rotationsgiessen und Vorrichtung zu dessen Durchführung.

Info

Publication number
DE68908763D1
DE68908763D1 DE89108634T DE68908763T DE68908763D1 DE 68908763 D1 DE68908763 D1 DE 68908763D1 DE 89108634 T DE89108634 T DE 89108634T DE 68908763 T DE68908763 T DE 68908763T DE 68908763 D1 DE68908763 D1 DE 68908763D1
Authority
DE
Germany
Prior art keywords
lenses
polymerization
carrying
rotational molding
rotational
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.)
Expired - Fee Related
Application number
DE89108634T
Other languages
English (en)
Other versions
DE68908763T2 (de
Inventor
Jiri Ing Sulc
Zuzana Krcova
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.)
Czech Academy of Sciences CAS
Original Assignee
Czech Academy of Sciences CAS
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 Czech Academy of Sciences CAS filed Critical Czech Academy of Sciences CAS
Application granted granted Critical
Publication of DE68908763D1 publication Critical patent/DE68908763D1/de
Publication of DE68908763T2 publication Critical patent/DE68908763T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
    • B29C41/042—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry
    • B29C41/045—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould by rotating a mould around its axis of symmetry the axis being placed vertically, e.g. spin casting
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/38—Moulds, cores or other substrates
    • 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
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/34—Component parts, details or accessories; Auxiliary operations
    • B29C41/50—Shaping under special conditions, e.g. vacuum
    • 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
    • B29D11/00115—Production of contact lenses made by rotational casting
    • 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
    • B29K2105/0002—Condition, form or state of moulded material or of the material to be shaped monomers or prepolymers

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Ophthalmology & Optometry (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Polymerisation Methods In General (AREA)
DE1989608763 1988-05-13 1989-05-12 Verfahren zur Polymerisation von Linsen durch Rotationsgiessen und Vorrichtung zu dessen Durchführung. Expired - Fee Related DE68908763T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS883255A CS272334B1 (en) 1988-05-13 1988-05-13 Method of lenses rotating casting and equipment for realization of this method

Publications (2)

Publication Number Publication Date
DE68908763D1 true DE68908763D1 (de) 1993-10-07
DE68908763T2 DE68908763T2 (de) 1994-03-24

Family

ID=5372073

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989608763 Expired - Fee Related DE68908763T2 (de) 1988-05-13 1989-05-12 Verfahren zur Polymerisation von Linsen durch Rotationsgiessen und Vorrichtung zu dessen Durchführung.

Country Status (5)

Country Link
EP (1) EP0341747B1 (de)
JP (1) JP2801261B2 (de)
CA (1) CA1330855C (de)
CS (1) CS272334B1 (de)
DE (1) DE68908763T2 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3651698B2 (ja) * 1995-04-28 2005-05-25 株式会社アサヒオプティカル プラスチックレンズの製造方法
CZ298423B6 (cs) * 2004-11-24 2007-09-26 Wilens, Spol. S R. O. Zpusob výroby intraokulárních cocek polymeracním odléváním do forem
AT506711B1 (de) 2008-05-05 2011-05-15 Hagleitner Hans Georg Spender für ein fliessfähiges medium
SG168419A1 (en) * 2009-07-10 2011-02-28 Menicon Co Ltd Systems and methods for the production of contact lenses
CN103057023B (zh) * 2013-01-21 2015-03-04 中国科学技术大学 一种用于离心铸造硅胶管的改进方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH512980A (de) * 1969-01-20 1971-09-30 Ceskoslovenska Akademie Ved Verfahren zur Herstellung von rotationssymmetrischen Gegenständen durch Schleuderguss
SU952958A1 (ru) * 1980-08-01 1982-08-23 Институт проблем онкологии им.Р.Е.Кавецкого Способ получени изолированных клеток печени
IL62899A0 (de) * 1981-05-18 1981-07-31
US4422984A (en) * 1982-09-13 1983-12-27 Neefe Charles W Centrifugal casting of contact lenses
US4517139A (en) * 1983-05-02 1985-05-14 International Hydron Corporation Device and method for centrifugally casting articles on a continuous basis
CS243055B1 (en) * 1983-05-23 1986-05-15 Otto Wichterle Contact lenses production equipment
CS247723B1 (en) * 1984-01-26 1987-01-15 Otto Wichterle Method and device for monomeric compounds triturating in moulds for contact lenses centrifugal casting

Also Published As

Publication number Publication date
CA1330855C (en) 1994-07-26
CS325588A1 (en) 1990-04-11
EP0341747A3 (de) 1991-01-16
JPH0278512A (ja) 1990-03-19
DE68908763T2 (de) 1994-03-24
EP0341747A2 (de) 1989-11-15
EP0341747B1 (de) 1993-09-01
CS272334B1 (en) 1991-01-15
JP2801261B2 (ja) 1998-09-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee