Title:
アゾ色素、眼用レンズ材料、眼用レンズ材料の製造方法及び眼用レンズ
Document Type and Number:
Japanese Patent JP5749729
Kind Code:
B2
Abstract:
An azo colorant being superior in elution resistance from an ophthalmic lens material and miscibility with a monomer for an ophthalmic lens, and capable of coloring with various hues is provided. Also provided are an ophthalmic lens material that achieves reduced elution of a colorant and is uniformly colored, a method for producing an ophthalmic lens material, and an ophthalmic lens. A monoazo colorant for coloring an ophthalmic lens represented by the following general formula (1). The ophthalmic lens material of the present invention is produced from a composition containing the monoazo colorant, and a monomer for an ophthalmic lens having a polymerizable group, and thus contains a copolymer of the monoazo colorant and the monomer for an ophthalmic lens.
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Inventors:
Tsuyoshi Watanabe
Masaki Baba
Yuya Motoyama
Toshio Kono
Kojiyama Nakaji
Masaki Baba
Yuya Motoyama
Toshio Kono
Kojiyama Nakaji
Application Number:
JP2012540853A
Publication Date:
July 15, 2015
Filing Date:
October 24, 2011
Export Citation:
Assignee:
Menicon Co., Ltd.
Dainichi Seika Kogyo Co., Ltd.
Dainichi Seika Kogyo Co., Ltd.
International Classes:
C09B29/20; A61L27/00; G02C7/00; G02C7/04
Domestic Patent References:
| JPS4512593B1 | ||||
| JPS53111332A | 1978-09-28 | |||
| JPS6391283A | 1988-04-21 | |||
| JPS51119719A | 1976-10-20 | |||
| JPH01297464A | 1989-11-30 | |||
| JP2001337298A | 2001-12-07 |
Foreign References:
| WO2009044853A1 | 2009-04-09 | |||
| CS235634B1 | 1985-05-15 | |||
| US3043647A | 1962-07-10 | |||
| DE2448994A1 | 1976-04-22 |
Attorney, Agent or Firm:
Hajime Amano
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