Highly refractive urethane polymers for use in optical lenses an

Details Highly refractive urethane polymers for use in optical lenses an Highly refractive urethane polymers for use in optical lenses an

1982-02-17

1984-04-17

Schofer, Joseph L.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

528 75, C08F 2602

Patent

active

044435886

ABSTRACT:
Highly refractive urethane polymers for use in optical lenses and the lenses produced therefrom are obtained by polymerizing at least one unsaturated urethane compound which is the reaction product of at least one xylylene diisocyanate and at least one compound selected from the group comprising: ##STR1## where: R.sub.1 is either H or CH.sub.3

REFERENCES:
patent: 3553174 (1971-01-01), Hausslein et al.
patent: 3907865 (1975-09-01), Miyata et al.

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