Substituted xanthene compounds

Details Substituted xanthene compounds Substituted xanthene compounds

1990-02-23

1992-09-22

Morgan, Kriellion S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549226, 549390, G03C 140, G03C 184, G03C 554, G03C 110

Patent

active

051498308

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: 4304834 (1981-12-01), Cournoyer et al.
patent: 4681950 (1987-07-01), Fischer et al.

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