Invention Grant
- Patent Title: Curable composition for optical materials, and optical material
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Application No.: US17413754Application Date: 2019-12-17
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Publication No.: US11976149B2Publication Date: 2024-05-07
- Inventor: Ayako Ohara , Taichi Hanasaki , Junji Takenaka , Junji Momoda
- Applicant: TOKUYAMA CORPORATION
- Applicant Address: JP Shunan
- Assignee: TOKUYAMA CORPORATION
- Current Assignee: TOKUYAMA CORPORATION
- Current Assignee Address: JP Shunan
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP 18235551 2018.12.17 JP 18236343 2018.12.18 JP 18236344 2018.12.18
- International Application: PCT/JP2019/049277 2019.12.17
- International Announcement: WO2020/129931A 2020.06.25
- Date entered country: 2021-06-14
- Main IPC: G02B1/111
- IPC: G02B1/111 ; C08F2/50 ; C08F20/14 ; C08F222/10 ; C08F290/14 ; C08K5/3475 ; C08L75/06 ; G02B1/04

Abstract:
The present invention relates to a curable composition for an optical material, containing (A) 100 parts by mass of a radical polymerizable monomer, (B) 0.005 to 0.5 parts by mass of a tetraazaporphyrin compound having a maximum absorption wavelength in a range of 560 nm or more and 620 nm or less, and (C) 0.1 to 10 parts by mass of an ultraviolet absorber having a maximum absorption wavelength in a range of 330 nm or more and 350 nm or less. According to the present invention, it is possible to provide a curable composition for an optical material, capable of being suitably used as a coating material that can easily provide an optical material having good antiglare properties and excellent weather resistance.
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