Optical data storage medium having chromophore/polymer...

Details Optical data storage medium having chromophore/polymer... Optical data storage medium having chromophore/polymer...

G - Physics

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B

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G11B 7/24 (2006.01) G11B 7/245 (2006.01) G11B 7/248 (2006.01)

Patent

CA 1234982

ABSTRACT OF THE DISCLOSURE Provided is an optical data storage medium comprising a chromophore/polymer composition information layer, wherein the chromophore is chemically bound or coordinated with the poly- mer. The chromophore is an organo macrocyclic chromophore containing a constitutent metal atom, and preferably a central metal atom, with the chromophore being coordinated to the polymer through the metal atom. As a result, the chromophore/polymer material has excellent film-forming properties so that the medium can be readily and efficiently manufactured. As well, the resulting information layer offers excellent hermomechanical properties and exhibits excellent absorption properties, all in a single component material. By utilizing a single component material, the problem of dye/polymer phase separation frequently encountered in conventional dye/polymer mixtures is also over- come.

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