Method for improving the photochromism of a photochromic compoun

Details Method for improving the photochromism of a photochromic compoun Method for improving the photochromism of a photochromic compoun

1998-01-12

1999-11-23

Dodson, Shelley A.

Drug, bio-affecting and body treating compositions

Preparations characterized by special physical form

Cosmetic, antiperspirant, dentifrice

424 59, 424 64, 424 69, 424 701, 424684, A61K 700, A61K 742, A61K 7025, A61K 7035

Patent

active

059895730

ABSTRACT:
A method of improving the photochromism of a photochromic compound by including the photochromic compound in a composition with at least one component capable of scavenging at least one vacant state of an energy band, corresponding to an electron vacancy, of the photochromic compound. In particular, the component may be selected from components having at least one hydroxyl group, preferably a plurality of hydroxyl groups.

REFERENCES:
patent: 3645909 (1972-02-01), Hovey
patent: 3957498 (1976-05-01), Reade
patent: 5176905 (1993-01-01), Ohno et al.
patent: 5628934 (1997-05-01), Ohno et al.
patent: 5700451 (1997-12-01), Yue et al.
patent: 5762913 (1998-06-01), Tanaka et al.
Chemical Abstracts, vol. 123, Abstract No. 290042.

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