Contact lens article made of silicon- and fluorine-containing re

Details Contact lens article made of silicon- and fluorine-containing re Contact lens article made of silicon- and fluorine-containing re

1989-09-06

1990-06-12

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526279, 523107, C08F 1820, C08F22210, C08F22218

Patent

active

049334069

ABSTRACT:
A contact lens article comprises a resin obtained by copolymerizing starting monomer components containing a silicon-containing compound (A) represented by the formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group, X.sub.1 and X.sub.2 each represent a methyl group or ##STR2## l represents 0 or 1, m represents an integer of 1 to 3 and n and p each represent an integer of 0 to 3; a fluorine-containing compound (B) represented by the formula (II) of: ##STR3## wherein at least one of R.sub.2 and R.sub.3 represents a straight chain or branched chain fluoroalkyl group represented by --C.sub.h H.sub.k F.sub.2h+l-k in which h represents an integer of 2 to 18, k represents an integer of 1 to 2 multiplied by h and when one of R.sub.2 and R.sub.3 is --C.sub.h H.sub.k F.sub.2h+l-k, the other of R.sub.2 and R.sub.3 represents an alkyl group having 1 to 12 carbon atoms, an alkenyl group having 2 to 12 carbon atoms or a cycloalkyl group having 3 to 12 carbon atoms; and a radical polymerizable vinyl monomer.

REFERENCES:
patent: 4433125 (1984-02-01), Ichinohe et al.
patent: 4525563 (1985-06-01), Shibata et al.
patent: 4540761 (1985-09-01), Kawamura et al.
patent: 4602074 (1986-07-01), Mizutani et al.
patent: 4780515 (1988-10-01), Deichert

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