ZA976639B - Manufacture of mouldings. - Google Patents

Manufacture of mouldings.

Info

Publication number
ZA976639B
ZA976639B ZA9706639A ZA976639A ZA976639B ZA 976639 B ZA976639 B ZA 976639B ZA 9706639 A ZA9706639 A ZA 9706639A ZA 976639 A ZA976639 A ZA 976639A ZA 976639 B ZA976639 B ZA 976639B
Authority
ZA
South Africa
Prior art keywords
mould
pct
state
solution
solid
Prior art date
Application number
ZA9706639A
Other languages
English (en)
Inventor
Beat Muller
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 ZA976639B publication Critical patent/ZA976639B/xx

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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F8/00—Chemical modification by after-treatment
    • C08F8/30—Introducing nitrogen atoms or nitrogen-containing groups
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2810/00—Chemical modification of a polymer
    • C08F2810/20—Chemical modification of a polymer leading to a crosslinking, either explicitly or inherently

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Ophthalmology & Optometry (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Eyeglasses (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Pens And Brushes (AREA)
ZA9706639A 1996-07-26 1997-07-25 Manufacture of mouldings. ZA976639B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96810500 1996-07-26

Publications (1)

Publication Number Publication Date
ZA976639B true ZA976639B (en) 1998-01-26

Family

ID=8225665

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9706639A ZA976639B (en) 1996-07-26 1997-07-25 Manufacture of mouldings.

Country Status (9)

Country Link
US (1) US6106746A (de)
EP (1) EP0951654B1 (de)
JP (1) JP4160120B2 (de)
AT (1) ATE214810T1 (de)
AU (1) AU3771297A (de)
DE (1) DE69711236T2 (de)
ID (1) ID17663A (de)
WO (1) WO1998004934A1 (de)
ZA (1) ZA976639B (de)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR029901A1 (es) * 2000-03-24 2003-07-23 Novartis Ag Prepolimeros reticulables o polimerizables, y un proceso para la fabricacion de articulos moldeados ''biomedicos'' ''
DE60209180T2 (de) * 2001-01-24 2006-09-28 Novartis Ag Verfahren zur Herstellung von Linsen
US6846892B2 (en) * 2002-03-11 2005-01-25 Johnson & Johnson Vision Care, Inc. Low polydispersity poly-HEMA compositions
US20060100408A1 (en) * 2002-03-11 2006-05-11 Powell P M Method for forming contact lenses comprising therapeutic agents
US20030218717A1 (en) * 2002-05-27 2003-11-27 Menicon Co., Ltd. Highly water-absorptive ophthalmic lens and method of producing the same
DE60317797T2 (de) * 2002-08-14 2008-10-30 Novartis Ag Strahlungshärtbare prepolymere
US7772286B2 (en) * 2003-02-28 2010-08-10 Eyesense Ag Polyvinyl alcohol copolymers comprising biomolecules
US7726809B2 (en) 2005-02-09 2010-06-01 Safilens S.R.L. Contact lens, method for producing same, and pack for storage and maintenance of a contact lens

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171870A (en) * 1960-07-01 1965-03-02 North American Aviation Inc Polymer processing
US3151095A (en) * 1961-01-13 1964-09-29 Whittaker Corp Process of mixing glass flakes with a normally liquid resin in frozen, comminuted form
US3968051A (en) * 1968-10-21 1976-07-06 American Cyanamid Company Freeze drying photochromic filters
US4673539A (en) * 1983-06-03 1987-06-16 Minnesota Mining And Manufacturing Company Process for thermoformed articles
DE3688578T2 (de) * 1985-07-31 1993-10-28 Ciba Geigy Polyvinylalkoholderivate und vernetzte Hydrogelkontaktlinsen.
GB2180308B (en) * 1985-09-11 1989-09-06 Teves Gmbh Alfred Brake pad retention spring, in particular for spot-type disc brakes for automotive vehicles
JPS6323126A (ja) * 1986-02-13 1988-01-30 Bio Material Yunibaasu:Kk ソフトコンタクトレンズおよびその製造法
DE3630928A1 (de) * 1986-09-11 1988-03-24 Messer Griesheim Gmbh Verfahren zur verbesserung der homogenitaet hochreaktiver polykondensate
ES2026970T3 (es) * 1987-07-10 1992-05-16 Karl Reinhard Zeiss Procedimiento para la fabricacion y elaboracion de mezclas de sustancias sinteticas reactivas.
JPS6490026A (en) * 1987-10-01 1989-04-05 Mitsubishi Heavy Ind Ltd Device for producing fine granular polyvinyl alcohol gel
TW272976B (de) * 1993-08-06 1996-03-21 Ciba Geigy Ag
US5804106A (en) * 1997-07-10 1998-09-08 Cheng Tsu Chen Manufacturing method for UV-screening photochromism eye glasses

Also Published As

Publication number Publication date
EP0951654B1 (de) 2002-03-20
JP2000515822A (ja) 2000-11-28
ID17663A (id) 1998-01-15
US6106746A (en) 2000-08-22
JP4160120B2 (ja) 2008-10-01
AU3771297A (en) 1998-02-20
DE69711236D1 (de) 2002-04-25
DE69711236T2 (de) 2002-10-02
EP0951654A1 (de) 1999-10-27
WO1998004934A1 (en) 1998-02-05
ATE214810T1 (de) 2002-04-15

Similar Documents

Publication Publication Date Title
CA2293568A1 (en) Injection molding process for rotationally asymmetric contact lens surfaces
CA2364139A1 (en) Compression molding of optical lenses
BG108147A (en) Process for the manufacture of moldings
CA2289944A1 (en) Process and apparatus for the production of a detergent composition
WO2005041804A3 (en) Method and apparatus for manufacturing dental aligners
MX9601226A (es) Moldeo por reaccion-inyeccion, como un proceso para preparar lentes de contacto.
AU2649499A (en) A method of component manufacture
MX9803377A (es) Metodo de transmision de informacion y aparato de codificiacion/descodificacion y aparato de codificicacion-multiplexion/descodificacion-desmultiplexion en sistema de transmision de informacion al cual se aplica el metodo de transmision de informacio
MY114536A (en) A resin molding machine and a method of resin molding
EE9800439A (et) Meetod vormitud vahvlite valmistamiseks, sellel meetodil saadud vaheprodukt ja vahvel ning selleks kasutatav vorm
ATE188199T1 (de) Sphärische keramikformkörper, verfahren zu ihrer herstellung sowie deren verwendung
CA2430644A1 (en) High optical quality molds for use in contact lens production
EP1552913A4 (de) Verfahren zur herstellung eines keramischen formk rpers
EP1226924A3 (de) Verfahren zur Herstellung von Linsen
AU3771297A (en) Manufacture of mouldings
AU2001292058A1 (en) Moulding apparatus and method
MXPA02006133A (es) Metodos y composiciones para la fabricacion de lentes oftalmicos.
AU7908391A (en) Plastics processing machine, and method for rapidly switching over from production of one product to another
TW332798B (en) The method and apparatus for manufacturing synchronous transmission belt
AU2198501A (en) Ceramic casting apparatus and method
FR2795361B1 (fr) Procede de moulage de lentilles ophtalmiques
DE59809138D1 (de) Vorrichtung zur Herstellung von Formkörpern aus einer polymerisierbaren Mischung
BR9508578A (pt) Processos de preparação de diisopinocanfeilcloroborano e de redução de uma cetona proquiral
MY120986A (en) Process and apparatus for the production of a detergent composition
ATE153330T1 (de) Neues verfahren zur herstellung von clonidin- derivaten