A cyclic sulfide compound, polymerizable compositions for optical products and optical products formed thereof
申请人:DAISO CO., LTD.
公开号:EP0562966A2
公开(公告)日:1993-09-29
The present invention provides a cyclic sulfide compound represented by a general formula (I)
where R1 represents -CH2-CH2-, -CH2-CH2-CH2-, -CH2-O-CH2-, -CH2-O-, or -CH2-S- .
According to this invention, a novel cyclic sulfide compound which gives high refractive index and high Abbe number can be obtained. The polymerizable compositions for manufacturing optical products with this compound as their main component can be readily molded into plastic lenses which give superhigh refractive indices and high Abbe numbers or those which give high refractive indices and high Abbe number with low sp.grs. in addition thereto. The castings obtained from said polymerizable compositions are useful as plastic lenses for glasses, manifesting optical uniformity and being excellent in processability, transparency, and thermal, impact and light resistance. Further these polymerizable resin compositions are usable preferably as such optical products as prisms, optical fibers,optical disc substrates, color filters, or infrared absorption filters.
本发明提供了一种由通式(I)表示的环状硫化物化合物
其中 R1 代表 -CH2-CH2-、-CH2-CH2-、-CH2-O-CH2-、-CH2-O- 或 -CH2-S-。
根据本发明,可以得到一种新型环状硫化物化合物,它具有高折射率和高阿贝数。以这种化合物为主要成分的用于制造光学产品的可聚合组合物可以很容易地模塑成具有超高折射率和高阿贝数的塑料透镜,或者具有高折射率和高阿贝数但同时具有低sp.grs.的塑料透镜。从上述可聚合组合物中获得的铸件可用作眼镜的塑料镜片,具有光学均匀性、出色的可加工性、透明度、耐热性、耐冲击性和耐光照性。此外,这些可聚合树脂组合物还可用作棱镜、光纤、光盘基片、彩色滤光片或红外线吸收滤光片等光学产品。