Polymerizable siloxane-quaternary amine copolymers

Details Polymerizable siloxane-quaternary amine copolymers Polymerizable siloxane-quaternary amine copolymers

2006-06-30

2008-12-23

Gulakowski, Randy (Department: 1796)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S107000, C264S001320, C526S279000

Reexamination Certificate

active

07468397

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 monomers 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 silicon-containing monomers end-capped with polymerizable cationic hydrophilic groups.

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