Interference No. 102,622
(b)
pre
pol
yme
r
of
sai
d
mon
ome
r,
or
(c)
a
mix
tur
e
the
reo
f; or,
Liquid compositions, polymerizable by a free-radical
route to yield optical articles possessing a high refractive
index, comprising:
(a) from 20 to 80 percent by weight of an allyl-
carbonate derivative represented by the formula
3
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