Dye-containing polarizing film

Details Dye-containing polarizing film Dye-containing polarizing film

G - Physics

03

C

G03C 7/29 (2006.01) C09B 45/24 (2006.01) G02B 1/08 (2006.01) G02B 5/30 (2006.01) G03C 7/34 (2006.01)

Patent

CA 2076560

ABSTRACT DYE-CONTAINING POLARIZING FILM A dye-containing polarizing film comprising a polarizing film material and a metal-containing dye represented by the following formula (I): Image wherein Me is a transition metal selected from copper, nickel, zinc and iron; Z is hydrogen, lower alkyl, lower alkoxy, sulfo or amino which is unsubstituted or substituted; Q is a 1-naphthol or 2-naphthol residue which is unsubstituted or substituted and has no or an additional phenylazo or naphthylazo group unsubstituted or substituted and in which a hydroxy group is adjacent to the azo group bonding to the benzene ring having Z and is linked with the transition metal denoted by Me to form the complex; when Q is the naphthol residue having no additional azo group, then T is naphthyl which is unsubstituted or substituted; and when Q is the naphthol residue having an additional azo group, the T is a phenyl or naphthyl group which is unsubstituted or substituted, which film exhibits comparable high polarizing activity with film using iodine and superior durability.

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