Fluorine and/or silicone containing poly(alkylene-oxide)-block copolymers and contact lenses thereof
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United States of America Patent
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May 19, 1992
Issued Date -
N/A
app pub date -
Feb 28, 1990
filing date -
Jun 20, 1989
priority date (Note) -
Expired
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Abstract
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), and optionally other copolymerizable comonomers (C). The novel block copolymers are prepared in solution or bulk and are characterized by high oxygen permeability, flexibility and wettability and are therefore well suited as biocompatible polymers, especially as contact lenses.
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