Fluorine and/or silicone containing poly(alkylene-oxide)-block c

Details Fluorine and/or silicone containing poly(alkylene-oxide)-block c Fluorine and/or silicone containing poly(alkylene-oxide)-block c

1993-12-17

1994-08-02

Dean, Ralph H.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526245, 526247, 526251, 526279, 525404, 525455, 351160R, 351160H, C08F 1230, C08F11418

Patent

active

053346815

ABSTRACT:
Fluorine and/or silicone containing block copolymers are described which are the copolymerization product of mono; di- or trivinyl substituted poly(ethylene oxide) prepolymers (A) and fluoroalkyl-alkylene acrylates or methacrylates (B1), oligosiloxy-silyl alkyl-acrylates or methacrylates (B2), ether 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.

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