Cationic end-capped siloxane prepolymer for reduced...

Details Cationic end-capped siloxane prepolymer for reduced... Cationic end-capped siloxane prepolymer for reduced...

2011-06-14

2011-06-14

Landau, Sharmila (Department: 1611)

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

Synthetic resins

Processes of preparing a desired or intentional composition...

C523S106000, C623S004100, C623S005110, C623S006110

Reexamination Certificate

active

07960447

ABSTRACT:
The present invention relates to hydrophilic dicationic siloxane prepolymers with one polymerizable vinyl moiety instead of two polymerizable vinyl moieties, resulting in contact lenses and/or biomedical devices with reduced cross-link density and modulus without detracting from other properties.

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