Polymerizable dye and ophthalmic lens containing the same
AssigneeMenicon Co., Ltd.
InventorsKohsuke Satake, Kazuharu Niwa
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Abstract
A novel benzophenone type polymerizable dye containing a urethane bond and an ophthalmic lens containing the said polymerizable dye are disclosed. The benzophenone type polymerizable dye is shown by the following general formula (1) (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18. R3 is any of a polymerizable functional group of a vinyl group, an acryloyl group or a methacryloyl group).
Claims16
A benzophenone type polymerizable dye shown by the following formula (1)
- (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18, and R3 is a polymerizable functional group of the formula
- wherein R4 is a hydrogen atom or a methyl group).
A benzophenone type polymerizable dye shown by the following formula (2)
A method for producing a benzophenone type polymerizable dye containing an urethane bond comprising a process of reacting a compound shown by the following general formula (3) with a compound shown by the following formula (4)
- (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m is an integer of 0 to 18)
- O═C═N—(CH2 )n—R3tm (4)
- (wherein R3 is a polymerizable functional group of the formula
- in which R4 is a hydrogen atom or a methyl group, and n is an integer of 0 to 18).
An ophthalmic lens comprising polymerizable monomers including;
- the benzophenone type polymerizable dye selected from the group consisting of benzophenone type polymerizable dye shown by the following formula (1) and benzophenone type polymerizable dye shown by the following formula (2),
- (wherein R1 and R2 are respectively and independently a hydrogen atom, a hydroxyl group, a carboxylic group, a C1 to C8 alkyl group, a C1 to C8 alkoxy group, a sulfonic acid group or a benzyloxy group, and m and n are respectively and independently an integer of 0 to 18, R3 is a polymerizable functional group of the formula
- wherein R4 is a hydrogen atom or a methyl group);
- and
Dependencies are inferred from the claim text.