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US 2005/0127335 A1Published application
Poly-azo compound, and polarization film having said compound
AssigneeSumitomo Chemical Company, Limited
InventorsToru Ashida, Narutoshi Hayashi
Life of this patent
Estimating the term…
Abstract
Poly-azo compound selected from the group consisting compounds of the formula (I) and compounds of the formula (II), (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to 3 sulfonic groups and further optionally having an alkyl group or alkoxy group, R1 and R2 represent each independently a hydrogen atom, alkyl group or alkoxy group, and R3 represents an amino group or hydroxyl group.).
Claims8
Poly-azo compound selected from the group consisting of compounds of the formula (I) and compounds of the formula (II),
- (wherein, Me represents copper, nickel, zinc or iron, A represents a naphthyl group having 1 to 3 sulfonic groups and further optionally having an alkyl group or alkoxy group, R1 and R2 represent each independently a hydrogen atom, alkyl group or alkoxy group, and R3 represents an amino group or hydroxyl group.).
Dependencies are inferred from the claim text.