Substituted xanthene compounds

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

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Details

252405, 252406, 252407, C08K 515, C09K 1506

Patent

active

054223822

ABSTRACT:
Substituted xanthene compounds are described which are capable of functioning as absorbers in high intensity light protective compositions and in materials used to prevent the transmission of high intensity light at selected wavelengths. Also described are high intensity light protective compositions containing an effective amount of a substituted xanthene compound and a polymeric compound and a material which prevents transmission of high intensity light at wavelengths between about 482 to about 556 nanometers. The material of this invention can be used to make protective eyewear, optical filters, shields for protecting a persons body from high intensity light, or shields for protecting components of an optical instrument from high intensity light.

REFERENCES:
patent: 3100207 (1963-08-01), Zirkle
patent: 4268514 (1981-05-01), Galt et al.
patent: 4617402 (1986-10-01), Borror et al.
patent: 4681950 (1987-07-01), Fischer et al.
patent: 5149830 (1992-09-01), Locatell et al.
patent: 5153336 (1992-10-01), Trofimenko
patent: 5196549 (1993-03-01), Auman

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