Polymerizable perfluoroalkylether macromer

US5973089A · kind A · utility

Assignees

• Novartis AG · CH
• COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH ORGANISATION · AU

Inventors

• Gordon Francis Meijs · Melbourne, AU
• Bronwyn Glenice Laycock · Melbourne, AU
• John Gerard Steele · Parramatta, AU
• Graham Johnson · Parramatta, AU

Key dates

• Filing date: Dec 22, 1997
• Grant date: Oct 26, 1999
• Expiry date: Dec 22, 2017

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/043
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Macromonomers of the formula I are described: EQU Q-B(L-B).sub.n T (I) PA1 wherein n is at least 1.0; PA1 Q is a polymerizable group; PA1 B may be the same or different and is a difunctional block of molecular weight in the range of from 100 to 4000 and wherein at least one B is a perfluorinated polyether of formula II; EQU --OCH.sub.2 CF.sub.2 O(CF.sub.2 CF.sub.2 O).sub.x (CF.sub.2 O).sub.y CF.sub.2 CH.sub.2 O-- (II) PA1 wherein the CF.sub.2 CF.sub.2 O and CF.sub.2 O units may be randomly distributed or distributed as blocks throughout the chain and wherein x and y may be the same or different such that the molecular weight of the perfluorinated polyether is in the range of from 242 to 4,000; PA1 L is a difunctional linking group; and PA1 T is a terminal group. These macromonomers may be used in the production of contact lenses, corneal implants, cell growth substrate or medical implant.