Low yellow index polymer compositions, polymerizable composition

Details Low yellow index polymer compositions, polymerizable composition Low yellow index polymer compositions, polymerizable composition

1995-01-18

1996-08-13

Nagumo, Mark

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526281, 526309, 526313, 526286, 526289, 522178, C08F23204, C08F22030

Patent

active

055458289

ABSTRACT:
The present invention relates to new polymer compositions for use in the manufacture of opthalmic lenses which result from the copolymerization of a component (A) comprising at least 50% by weight of a monomer or mixture having formula ##STR1## wherein R.sub.1 and R.sub.2 are selected from H and C.sub.1 -C.sub.6 alkyl radical,

REFERENCES:
patent: 4931523 (1990-06-01), Watanabe et al.

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