Prepolymers with yellow dye moiety

Details Prepolymers with yellow dye moiety Prepolymers with yellow dye moiety

C - Chemistry, Metallurgy

07

F

C07F 7/18 (2006.01) C08G 77/38 (2006.01) C08G 77/42 (2006.01) G02B 1/04 (2006.01)

Patent

CA 2537207

Yellow dye moiety-containing prepolymers with blue light absorbing properties and methods for producing the same for use in the production of relatively high refractive index polymeric compositions are described herein. Polymeric compositions so produced are useful in the production of ophthalmic devices such as for example intraocular lenses and corneal inlays.

L'invention concerne des prépolymères contenant une fraction de colorant jaune et ayant des propriétés d'absorption de lumière bleue. L'invention concerne également des procédés de production de ces prépolymères destinés à être utilisés dans la production de compositions ayant un indice de réfraction relativement élevé. Les compositions polymériques ainsi produites sont utiles dans la production de dispositifs ophthalmiques tels que des lentilles intra-oculaires et des incrustations cornéennes.

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