Uv-absorbing benzotriazoles having a styrene group

Details Uv-absorbing benzotriazoles having a styrene group Uv-absorbing benzotriazoles having a styrene group

C - Chemistry, Metallurgy

07

D

C07D 249/20 (2006.01) A61F 2/16 (2006.01) C08F 8/30 (2006.01) C08F 12/32 (2006.01) C08F 212/32 (2006.01) C08K 5/3475 (2006.01) G02B 1/04 (2006.01) G02C 7/04 (2006.01) G02C 7/10 (2006.01)

Patent

CA 2160677

A reactive monomer for preparing ultraviolet absorbing polymers has formula (I) wherein R1 is a halogen or C1-C6 straight or branched chain alkoxy group; and R2 is a -(CH2)3O- , -(CH2)2O- , -CH(CH3)CH2O- , -CH2CH(CH3)O- , -(CH2)3OCH2-, -(CH2)2OCH2-, - CH(CH3)CH2OCH2-, or -CH2CH(CH3)OCH2- group. The compound can be used to produce ultraviolet absorbing polymers, such as those used for ocular devices including contact and intraocular lenses.

Un monomère réactif utilisé dans la préparation de polymères absorbants les ultra-violets a la formule (I), dans laquelle R1 représente un groupe halogène ou alcoxy C1-C6 à chaîne droite ou ramifiée; et R2 représente un groupe -(CH2)3O-, -(CH2)2O-, -CH(CH3)CH2O-, -CH2CH(CH3)O-, -(CH2)3OCH2-, -(CH2)2OCH2-, -CH(CH3)CH2OCH2-, ou -CH2CH(CH3)OCH2-. On peut utiliser le composé pour produire des polymères absorbants les ultra-violets, tels que ceux utilisés pour des dispositifs oculaires parmi lesquels des verres de contact et des lentilles intra-oculaires.

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