Ocular device comprising a uv-absorbing benzotriazoles having a

Details Ocular device comprising a uv-absorbing benzotriazoles having a Ocular device comprising a uv-absorbing benzotriazoles having a

1996-11-27

1998-03-17

Richter, Johann

Optics: eye examining, vision testing and correcting

Spectacles and eyeglasses

Ophthalmic lenses or blanks

523108, 523137, 525258, 5253282, 5253288, 5253289, 5253307, 5253337, 525342, 525419, 526259, 528423, 528 30, 528 28, 548259, 548260, 623 6, G02C 704, A61F 216, C08G 7306, C08F28300

Patent

active

057293228

ABSTRACT:
A reactive monomer for preparing ultraviolet absorbing polymers has formula (I) wherein R.sup.1 is a halogen or C.sub.1 -C.sub.6 straight or branched chain alkoxy group; and R.sup.2 is a --(CH.sub.2).sub.3 O--, --(CH.sub.2).sub.2 O--, --CH(CH.sub.3)CH.sub.2 O--, --CH.sub.2 CH(CH.sub.3)O--, --(CH.sub.2).sub.3 OCH.sub.2 --, --(CH.sub.2).sub.2 OCH.sub.2 --, --CH(CH.sub.3)CH.sub.2 OCH.sub.2 --, or --CH.sub.2 CH(CH.sub.3)OCH.sub.2 -- group. The compound can be used to produce ultraviolet absorbing polymers, such as those used for ocular devices including contact and intraocular lenses.

REFERENCES:
patent: 5147902 (1992-09-01), Ichikawa et al.

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