Tetraazaporphyrin dye mixtures

Details Tetraazaporphyrin dye mixtures Tetraazaporphyrin dye mixtures

1989-04-04

1992-02-11

Maples, John S.

Compositions

Light transmission modifying compositions

Infrared

430495, 430944, 540122, 540136, 540139, 540140, F21V 904, G03C 100, C09B 4704, C09B 6200

Patent

active

050873903

ABSTRACT:
In one embodiment this invention provides a tetraazaporphyrin dye mixture which exhibits light absorption over a spectrum range of about 660-850 nm, and provides a process for production of the dye mixture.
An invention dye mixture has utility in optical recording media, or as a nonlinear optical component in optical light switch or light modulator devices.
Illustrative of an invention dye mixture is a blend of dye constituents respectively having varying combinations of phthalocyanine and naphthalocyanine entities in the macrocyclic structures.

REFERENCES:
patent: 4061654 (1977-12-01), Idelson
patent: 4622179 (1986-11-01), Eda
patent: 4725525 (1988-02-01), Kenney et al.
patent: 4749637 (1988-06-01), Hayashida et al.
patent: 4769307 (1988-09-01), Ozawa et al.
patent: 4783386 (1988-11-01), Nikles et al.
patent: 4814256 (1989-03-01), Aldag et al.
patent: 4828758 (1989-05-01), Gillberg-LaForce
patent: 4943681 (1990-07-01), Sato et al.

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