PT91800A - Processo para a producao de lentes de contacto de plimero de siloxano-uretano de ligacao cruzada - Google Patents

Processo para a producao de lentes de contacto de plimero de siloxano-uretano de ligacao cruzada

Info

Publication number
PT91800A
PT91800A PT9180089A PT9180089A PT91800A PT 91800 A PT91800 A PT 91800A PT 9180089 A PT9180089 A PT 9180089A PT 9180089 A PT9180089 A PT 9180089A PT 91800 A PT91800 A PT 91800A
Authority
PT
Portugal
Prior art keywords
isocyanate
poly
cross
contact lenses
preparation
Prior art date
Application number
PT9180089A
Other languages
English (en)
Other versions
PT91800B (pt
Inventor
Karl F Mueller
Paul Harisiades
Original Assignee
Ciba Geigy 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 Ciba Geigy Ag filed Critical Ciba Geigy Ag
Publication of PT91800A publication Critical patent/PT91800A/pt
Publication of PT91800B publication Critical patent/PT91800B/pt

Links

Landscapes

  • Polyurethanes Or Polyureas (AREA)
  • Eyeglasses (AREA)
PT9180089A 1988-09-28 1989-09-26 Processo para a producao de lentes de contacto de plimero de siloxano-uretano de ligacao cruzada PT91800B (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US25000088A 1988-09-28 1988-09-28

Publications (2)

Publication Number Publication Date
PT91800A true PT91800A (pt) 1990-03-30
PT91800B PT91800B (pt) 1995-05-31

Family

ID=22945893

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9180089A PT91800B (pt) 1988-09-28 1989-09-26 Processo para a producao de lentes de contacto de plimero de siloxano-uretano de ligacao cruzada

Country Status (1)

Country Link
PT (1) PT91800B (pt)

Also Published As

Publication number Publication date
PT91800B (pt) 1995-05-31

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Legal Events

Date Code Title Description
FG3A Patent granted, date of granting

Effective date: 19941121

PC3A Transfer or assignment

Free format text: 970605 NOVARTIS AG CH

MM3A Annulment or lapse

Free format text: LAPSE DUE TO NON-PAYMENT OF FEES

Effective date: 19990531