Polythiol compound, and optical material and product produced th

Details Polythiol compound, and optical material and product produced th Polythiol compound, and optical material and product produced th

1990-12-24

1994-07-05

Tucker, Philip

Compositions

Light transmission modifying compositions

528 85, 528377, F21V 900, C08G 1832, C08G 7500

Patent

active

053265017

ABSTRACT:
This invention relates to a polythiol compound and an optical material therefrom. Having a rigid 1,4-dithian ring which increases the refractive index and Abbe's number, the polythiol compound used for the production of an optical material imparts the optical material with high heat resistance and excellent mechanical properties as well as excellent optical properties.

REFERENCES:
patent: 2891072 (1959-06-01), Remes et al.
patent: 2900392 (1959-08-01), Remes et al.
patent: 4225700 (1980-09-01), Wolfe et al.
patent: 4775733 (1988-10-01), Kanemura et al.
patent: 5084545 (1992-01-01), Nagata et al.

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