Siloxane prepolymer containing pendant cationic and polymerizable groups
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United States of America Patent
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Sep 9, 2014
Grant Date -
Jul 12, 2007
app pub date -
Dec 15, 2006
filing date -
Jan 6, 2006
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Abstract
The present invention relates to polymeric compositions useful in the manufacture of biocompatible medical devices. More particularly, the present invention relates to certain cationic random copolymers capable of polymerization to form polymeric compositions having desirable physical characteristics useful in the manufacture of ophthalmic devices. Such properties include the ability to extract the polymerized medical devices with water. This avoids the use of organic solvents as is typical in the art. The polymer compositions comprise polymerized siloxane prepolymer containing pendant cationic and polymerizable groups.
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