DYE FOR OPHTHALMIC LENS

摘要: PURPOSE:To provide a blue dye for contact lens, which has excellent light resistance and solubility, by reacting tetraaminocopper phthalocyanine with the corresponding acid chloride. CONSTITUTION:Tetraaminocoper obtd. reducing tetranitrocopper synthesized from nitrophthalimide Na2S is reacted chloride in presence of an acceptor to obtain ophthalmic composed copper derivative formula [wherein R1, R2, R3, R4, R5, R6, R7 R8 are each H or -CO-A group; A 7-17C alkyl, vinyl 1-methylviny; at least one R1-R8 (meth)acryloyl]. 0.0001-1wt% said dissolved monomer such as 2-hydroxyethyl methacrylate, N-vinylpyrrolidone, etc., put into mold copolymerized lens.