Dye compositions for anisotropic dye films, anisotropic dye films and polarizing elements
AssigneeMitsubishi Chemical Corporation
InventorsRyuichi Hasegawa, Junichi Oizumi, Masami Kadowaki, Tomio Yoneyama, Hideo Sano
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Abstract
To provide a dye composition for an anisotropic dye film, capable of forming an anisotropic dye film which has good heat resistance, has little defects and shows high dichroism; an anisotropic dye film formed by using such a composition for an anisotropic dye film; and a polarizing element employing such an anisotropic dye film.
Claims18
A dye composition for an anisotropic dye film, which comprises a dye and a compound having at least two groups selected from the group consisting of an acidic group, a basic group and a neutral group, wherein at least one of said at least two groups is a basic group.
An anisotropic dye film comprising a dye and a compound having at least two groups selected from the group consisting of an acidic group, a basic group and a neutral group, wherein at least one of said at least two groups is a basic group.
Dependencies are inferred from the claim text.