C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 214/18 (2006.01) C08F 210/00 (2006.01) C08F 216/12 (2006.01) C08F 290/14 (2006.01) C08F 293/00 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01)
Patent
CA 2057974
V-18488/A/CGV 1433 Fluorine and/or Silicone Containing Poly(alkvlene-oxide)-Block Copolymer Hydrogels and Contact Lenses Thereof Abstract of the Disclosure Fluorine and/or silicone containing block copolymers are described which are the copolymerization product of mono; di- or trivinyl substituted poly(alkylene oxide) prepolymers (A) and fluoroalkyl-alkylene acrylates or methacrylates (B1), oligosiloxy- silyl alkyl-acrylates or methacrylates (B2), other copolymerizable comonomers (C), and 0.1 to 10% of a di- or polyvinyl crosslinking comonomer (D) of 200 to 1000 molecular weight. The novel block copolymers are prepared in solution or bulk and form hydrogels which are characterized by high oxygen permeability, resiliency, flexibility and wettability and are therefore well suited as biocompatible polymers, especially as contact lenses.
Mueller Karl F.
Plankl Walter L.
Fetherstonhaugh & Co.
Novartis Ag
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